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Bioactive compounds in Hericium erinaceus and their biological properties:a review
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作者 Yue Qiu Genglan Lin +4 位作者 Weiming Liu Fuming Zhang Robert J.Linhardt Xingli Wang Anqiang Zhang 《Food Science and Human Wellness》 SCIE CAS CSCD 2024年第4期1825-1844,共20页
Hericium erinaceus is a nutritious edible and medicinal fungi,rich in a variety of functional active ingredients,with various physiological functions such as antioxidation,anticancer,and enhancing immunity.It is also ... Hericium erinaceus is a nutritious edible and medicinal fungi,rich in a variety of functional active ingredients,with various physiological functions such as antioxidation,anticancer,and enhancing immunity.It is also effective in protecting the digestive system and preventing neurodegenerative diseases.In this review paper,we summarize the sources,structures and efficacies of the main active components in H.erinaceus fruiting body,mycelium,and culture media,and update the latest research progress on their biological activities and the related molecular mechanisms.Based on this information,we provide detailed challenges in current research,industrialization and information on the active ingredients of H.erinaceus.Perspectives for future studies and new applications of H.erinaceus are proposed. 展开更多
关键词 Hericium erinaceus Bioactive compounds Biological activities ANTIOXIDATION NEUROPROTECTION IMMUNOREGULATION
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Chemico-biological conversion of carbon dioxide
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作者 Liangwei Hu Junzhu Yang +3 位作者 Qi Xia Jin Zhang Hongxin Zhao Yuan Lu 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2024年第2期371-387,I0009,共18页
The unabated carbon dioxide(CO_(2))emission into the atmosphere has exacerbated global climate change,resulting in extreme weather events,biodiversity loss,and an intensified greenhouse effect.To address these challen... The unabated carbon dioxide(CO_(2))emission into the atmosphere has exacerbated global climate change,resulting in extreme weather events,biodiversity loss,and an intensified greenhouse effect.To address these challenges and work toward carbon(C)neutrality and reduced CO_(2)emissions,the capture and utilization of CO_(2)have become imperative in both scientific research and industry.One cutting-edge approach to achieving efficient catalytic performance involves integrating green bioconversion and chemical conversion.This innovative strategy offers several advantages,including environmental friendliness,high efficiency,and multi-selectivity.This study provides a comprehensive review of existing technical routes for carbon sequestration(CS)and introduces two novel CS pathways:the electrochemicalbiological hybrid and artificial photosynthesis systems.It also thoroughly examines the synthesis of valuable Cnproducts from the two CS systems employing different catalysts and biocatalysts.As both systems heavily rely on electron transfer,direct and mediated electron transfer has been discussed and summarized in detail.Additionally,this study explores the conditions suitable for different catalysts and assesses the strengths and weaknesses of biocatalysts.We also explored the biocompatibility of the electrode materials and developed novel materials.These materials were specifically engineered to combine with enzymes or microbial cells to solve the biocompatibility problem,while improving the electron transfer efficiency of both.Furthermore,this review summarizes the relevant systems developed in recent years for manufacturing different products,along with their respective production efficiencies,providing a solid database for development in this direction.The novel chemical-biological combination proposed herein holds great promise for the future conversion of CO_(2)into advanced organic compounds.Additionally,it offers exciting prospects for utilizing CO_(2)in synthesizing a wide range of industrial products.Ultimately,the present study provides a unique perspective for achieving the vital goals of“peak shaving”and C-neutrality,contributing significantly to our collective efforts to combat climate change and its associated challenges. 展开更多
关键词 Carbon dioxide Bioelectric synthesis Artificial photosynthesis Synthetic product
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Biological properties of essential oil emphasized on the feasibility as antibiotic substitute in feedstuff
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作者 Jingfu Pan Yulin Zhu +3 位作者 Mohamed A.Abdel-Samie Changzhu Li Haiying Cui Lin Lin 《Grain & Oil Science and Technology》 2023年第1期10-23,共14页
The discovery and application of antibiotics in animal feeds have boomed the development of intensive animal husbandry in the last century,until the emergence of antibiotics-resistant bacteria.To alleviate the risks a... The discovery and application of antibiotics in animal feeds have boomed the development of intensive animal husbandry in the last century,until the emergence of antibiotics-resistant bacteria.To alleviate the risks aroused by antibiotics-resistant bacteria,effective antibiotic substitutes are urgently needed to replace antibiotics.Essential oils(EOs)derived from plants are illustrated as the promising antibiotic substitutes used in animal feeds,as same as their current views for poultry and livestock industries in the future.It has been widely demonstrated that the phytochemicals in EOs show multiple biofunctionability and are less likely to induce resistance in bacteria.The beneficial effects of EOs feed supplementation on the intestinal inflammation,intestinal flora,immunity,digestion,and growth performances have been already extensively examined.However,the cost-effectiveness,odor,volatility,instability and bioavailability are the challenges in effectively utilizing EOs in animal intestines.Based on previous researches,and these challenges can partially be resolved by microencapsulation and nanotechnology are promising techniques to deal with these challenges.This article presents the feasibility and foundation of EOs application as antibiotic substitutes in animal feeds,and illustrates the mechanisms,functional performances and superiority of EOs compared with antibiotics. 展开更多
关键词 ANTIBIOTICS Essential oils Animal feeds ENTEROBACTERIA MECHANISM
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Natural sources, biosynthesis, biological functions, and molecular mechanisms of shikimic acid and its derivatives
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作者 Gopalsamy Rajiv Gandhi Alan Bruno Silva Vasconcelos +5 位作者 Poovathumkal James Antony Monalisa Martins Montalvão Mariana Nobre Farias de Franca Varghese Edwin Hillary Stanislaus Antony Ceasar Dan Liu 《Asian Pacific Journal of Tropical Biomedicine》 SCIE CAS 2023年第4期139-147,共9页
Shikimic acid is a hydroaromatic compound possessing critical biological properties,such as antibacterial and antiviral activity.This review mainly focused on shikimic acid and its derivatives.We first briefly introdu... Shikimic acid is a hydroaromatic compound possessing critical biological properties,such as antibacterial and antiviral activity.This review mainly focused on shikimic acid and its derivatives.We first briefly introduced the sources of shikimic acid and its derivatives and discussed their biosynthesis.Several in vitro and in vivo studies indicate that shikimic acid and its derivatives exhibit diverse bioactivities,such as antioxidant,antiviral,anti-inflammatory,antibacterial,hypolipidemic,bone protective,skin protective,neuroprotective,and antidiabetic activities.We mainly focused on the related molecular mechanisms.Overall,the wide range of bioactivities of shikimic acid and its derivatives indicate that a more detailed exploration of their potential for the prevention and treatment of certain diseases is warranted. 展开更多
关键词 Natural products SHIKIMATE Ginkgo biloba NEUROPROTECTION INFLAMMATION
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Management practices and technologies for efficient biological sample collection from domestic animals with special reference to Indian field conditions
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作者 Gokula Kannan Ragavan Purushothaman Selvaraj +6 位作者 Dharman Murugesan Tirumurugaan Krishnaswamy Gopalan Soundararajan Chinnaiyan Dhinakar Raj Gopal Aravindh Babu Ramasamy Parthiban Karthik Kumaragurubaran Azhahianambi Palavesam 《Animal Diseases》 CAS 2023年第4期242-255,共14页
Management strategies and the use of advanced technologies are equally important for determining the sample number and sampling frame for successful field sampling for animal disease prevalence studies.The quality of ... Management strategies and the use of advanced technologies are equally important for determining the sample number and sampling frame for successful field sampling for animal disease prevalence studies.The quality of the biological samples collected in the field has a direct bearing on the integrity of the data generated,prevalence estimates and subsequent policy decisions on disease control.Hence,compromising the quality of biological samples collected in the field could potentially undermine the priority setting principles in disease control strategies.Biological samples collected from domestic animals in the field are precious materials and require meticulous planning for sample collection,sample storage in the field,transportation,and storage in the laboratory.Poorly managed field sampling has a significant detrimental impact on the sample quality and quantity and directly affects the accuracy of disease prevalence data.A bad choice of sampling tools,containers,storage and transport all have a negative impact on the integrity of the sample and consequently have an impact on the outcome.Over the last two years,as part of our one health animal sampling work in ndia,we have observed challenges and opportunities in the field sampling of animals for disease prevalence studies.This paper aims to provide information on management practices and technologies for efficient biological sample collection from the field and ensure that good quality samples are available fortesting. 展开更多
关键词 One health Domestic animals Sample quality Technology Management
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In vitro growth, differentiation and biological characteristics of neural stem cells 被引量:20
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作者 Meijiang Yun Lianzhong Wang +1 位作者 Yongcai Wang Xiaolian Jiang 《Neural Regeneration Research》 SCIE CAS CSCD 2006年第4期364-367,共4页
OBJECTIVE: To summarize the biological characteristics of neural stem cells, and the separation, purification. differentiation and source of neural stem cells. DATA SOURCES : An online search of Pubmed database was ... OBJECTIVE: To summarize the biological characteristics of neural stem cells, and the separation, purification. differentiation and source of neural stem cells. DATA SOURCES : An online search of Pubmed database was undertaken to identify English articles about the growth of neural stem cells in vitro published from January 2000 to October 2006 by using the keywords of "neural stem cells, bone marrow mesenchymal stem cells (BMSCs), umbilical cord blood stem cells, embryonic stem cells (ESC), separation methods, neural growth factor". And relevant articles published in IEEE/IEE Electronic Library (IEL) database, Springer Link database and Kluwer Online Journals were also searched, Chinese relevant articles published between January 2000 to October 2006 were searched with the same keywords in Chinese in Chinese journal full-text database. STUDY SELECTION : The articles were primarily screened, and then the full-texts were searched. Inclusive criteria: (1) Articles relevant to the biological characteristics and classification of neural stem cells; (2) Articles about the source, separation and differentiation of the ESCs, BMSCs and umbilical cord blood stem cells. The repetitive studies and reviews were excluded. DATA EXTRACTION : Thirty articles were selected from 203 relevant articles according to the inclusive criteria Articles were excluded because of repetition and reviews. DATA SYNTHESES : Neural stem cells have the ability of self-renewing and high differentiation, and they are obtained from ESCs, nerve tissue, nerve system, BMSCs and umbilical cord blood stem cells. ESCs can be separated by means of mechanical dissociation is better than that of the trypsin digestion, BMSCs by density gradient centrifuge separation, hemolysis, whole-blood culture, etc., and umbilical cord blood stem ceils by Ficoil density gradient centrifugation, hydroxyethyl starch (HES) centrifugation sedimentation, etc. Neural growth factor (NGF) and other factors play an important role in the growth of NSCs, such as transforming growth factor (TGF) is an important player in repairing organs, NGF accelerates the process of growth, insulin-like growth factor serves importantly in the differentiation of stem cells into neuron-like cells. CONCLUSION : As unipotent stem cells, NSCs have the abilities of self-renewal and potential of high differentiation. The method of mechanical dissociation is better than trypsin digestion in e separating ESCs. However, density gradient centrifuge separation is better than other methods in the separation of the BMSCs. NGF and other factors play an important role in the growth of NSCs. 展开更多
关键词 NSCS CELL STEM differentiation and biological characteristics of neural stem cells In vitro growth BMSCS
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Synthesis,Crystal Structure and Biological Activity of N-(2,6-Difluorobenzoyl)-N'-[5-(4-trifluoromethyl-phenyl)-1,3,4-thiadiazol-2-yl]ure 被引量:4
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作者 邵宇 杨平 +2 位作者 李世荣 王发松 胡卫兵 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 2011年第6期848-852,共5页
The title compound N-(2,6-difluorobenzoyl)-N'-[5-(4-trifluoromethylphenyl)-1,3,4-thiadiazol-2-yl]urea(C17H9F5N4O2S,Mr = 428.34) has been synthesized by the reaction of 2-amino-5-(4-trifluoromethylphenyl)-1,3,... The title compound N-(2,6-difluorobenzoyl)-N'-[5-(4-trifluoromethylphenyl)-1,3,4-thiadiazol-2-yl]urea(C17H9F5N4O2S,Mr = 428.34) has been synthesized by the reaction of 2-amino-5-(4-trifluoromethylphenyl)-1,3,4-thiadiazole with 2,6-difluorobenzoyl isocyanate,and its crystal structure was determined by single-crystal X-ray diffraction.The crystal belongs to monoclinic,space group P21/n with a = 10.7316(13),b = 10.5617(13),c = 16.037(2) ,β = 106.408(2)°,V = 1743.6(4) 3,Z = 4,Dc = 1.632 g/cm3,μ = 0.260 mm-1,F(000) = 864,the final R = 0.0599 and wR = 0.1420 for 3467 observed reflections with I〉 2σ(I).The urea group,which adopts a planar configuration mediated by the intramolecular N-H...O hydrogen bond,is nearly coplanar with the thiadiazole and 4-trifluoromethylbenzene rings.The title compound was found to exhibit good fungicidal activity against Rhizoctonia solani and Botrytis cinerea. 展开更多
关键词 1 3 4-thiadiazole aroylurea SYNTHESIS crystal structure biological activity
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Biological Intelligence of Rare Earth Elements in Animal Cells 被引量:4
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作者 邱关明 李伟 +2 位作者 李喜坤 周威 杨春生 《Journal of Rare Earths》 SCIE EI CAS CSCD 2005年第S1期554-573,共20页
Recent progress in bioinorganic chemistry studies of rare earth elements (REE) in animal cells was outlined, and the definition of REE′s biological intelligence as well as their mechanism were also explained. The mig... Recent progress in bioinorganic chemistry studies of rare earth elements (REE) in animal cells was outlined, and the definition of REE′s biological intelligence as well as their mechanism were also explained. The migration of REE from weathering rocks to the environment is accelerated by various anthropogenic activities, which can eventually result in the entrance of REE into animal and human bodies via food chain. REE can be found in body tissues such as brain, blood, muscle as well as bone. Based on their geochemical properties, REE in low dose show their unique biological intelligence by intervening in the process of signal transduction and its regulation, arteriosclerosis and blood clotting prevention, anticancer, and the promotion of cellular defense enzymes′ activities, nucleic acid metabolism enzymes as well as ATPases, etc. The meaning of REE′s biological intelligence refers to physicochemical properties-based capability to choose the targets (e.g., biometals) in biomolecules for the chelation or replacement of REE, and change the structures and functions of biomolecules, and consequently impact or control the biological functions or behaviors in living organisms. The regulation of various cellular processes caused by REE is mainly via antagonism or replacement of essential target biometals like calcium or via chelation of organic molecules, thereby embodying the unparalleled biological intelligence of REE. Additionally, the dosage effect of REE was also discussed from the angles of yin-yang dichotomy, bioavailability, entropy and evolution. In order to make full use of REE′s biological intelligence in the application for medicine, more detailed studies concerning dosage effect of REE and REE bioaccumulation in organisms should be conducted in future research. 展开更多
关键词 bioinorganic chemistry biological intelligence of REE animal cells replacement ANTAGONISM target biometals evolution dosage effect BIOACCUMULATION rare earths
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Application of a novel backwashing process in upflow biological aerated filter 被引量:7
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作者 Jinshui Yang Weijie Liu +3 位作者 Baozhen Li Hongli Yuana Meiping Tong Jinsong Gao 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2010年第3期362-366,共5页
To improve the efficiency of backwashing in upflow biological aerated filter (BAF), a novel backwashing process named air-water siphon backwashing (AWSB) was proposed and applied on laboratory scale. The effects o... To improve the efficiency of backwashing in upflow biological aerated filter (BAF), a novel backwashing process named air-water siphon backwashing (AWSB) was proposed and applied on laboratory scale. The effects of backwashing on turbidity and suspended solid (SS) in backwashing efluent using this new backwashing process were compared with those of traditional backwashing process, namely air-water backwashing (AWB). In AWB, the turbidity of backwashing efluent maintained 100 NUT when consumed 60 min and 10.5 L water. However, in AWSB, it declined to 44 NUT, consumed 40 min, and 7 L water. The COD removal of BAF after backwashing was also analyzed. The average removal rate of COD in the reactor backwashed by AWB and AWSB was 89.34% and 90.91%, respectively. Compared with AWB, the backwashing interval had been prolonged 35%. The volume of backwashing water in that AWSB was only 66.7% of that in AWB. The results demonstrated that AWSB required less water and took shorter backwashing timerelative to AWB to achieve the same turbidity of backwashing efluent, and AWSB was more effective in removing fouling than that of AWB. More significant advantage of AWSB was that the backwashing interval was effectively prolonged 展开更多
关键词 biological aerated filter air-water siphon backwashing chemical oxygen demand
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Synthesis, Crystal Structure, and Biological Activity of 4-Chlorobenzaldehyde (2-trifluoromethylTrifluoromethyl-5,6,7,8-tetrahydrobenzo[4 ,5]-thieno[2,3-d]pyrimidin-4-yl)hydrazone Monohydrate 被引量:3
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作者 杨平 王艳 +4 位作者 段正超 邵 宇 聂光华 宋新建 田大听 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 2013年第7期1023-1030,共8页
The novel title compound 4-chlorobenzaldehyde (2-trifluoromethyl-5,6,7,8- tetrahydro- benzo[4,5]thieno[2,3-d]pyrimidin-4-yl)hydrazone monohydrate (C18H14C1F3N4S.H20, Mr = 428.86) has been synthesized by a condensa... The novel title compound 4-chlorobenzaldehyde (2-trifluoromethyl-5,6,7,8- tetrahydro- benzo[4,5]thieno[2,3-d]pyrimidin-4-yl)hydrazone monohydrate (C18H14C1F3N4S.H20, Mr = 428.86) has been synthesized by a condensation reaction of 4-chlorobenzaldehyde with (2-trifuoromethyl-5,6,7,8-tetrahydrobenzo[4,5]thieno[2,3-d]pyrimidin-4-yl)hydrazine, and its crystal structure was determined by single-crystal X-ray diffraction. The crystal belongs to monoclinic, space group P21/c with a = 7.4252(7), b = 26.344(2), c = 10.3095(9) A, /3 = 109.407(2)~, V= 1902.0(3) A3, Z = 4, Dc = 1.498 g/cm^3, p = 0.356 mm-1, F(000) = 880, the final R = 0.0564 and wR = 0.1681 for 2343 observed reflections with I 〉 2o(/). X-ray diffraction analysis reveals that the title hydrazone molecule is nearly planar except for the cyclohexene and trifluoromethyl moieties. In the crystal packing, the molecules form stacks by a three-dimensional framework, which results from intermolecular N(3)-H(3)...O(1), O(1)-H(1B)...N(2), O(1)- H(1B)...N(4) and O(1)-H(1A)...F(1) hydrogen bonds via water molecules together with π-π stacking interactions. Molecular geometry of the title compound in the ground state optimized by B3LYP functional with 6-311G** basis sets indicates that the calculations are in agreement with the experimental data. The preliminary bioassay suggested that the title compound exhibits relatively good fungicidal activity against Fusarium oxysporium fsp.vasinfectum and Dothiorella gregaria. 展开更多
关键词 thieno[2 3-d]pyrimidine hydrazone TRIFLUOROMETHYL DFT calculation biological activity
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Bioinformatic Game Theory and Its Application to Biological Affinity Networks 被引量:1
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作者 Bo Deng Brittney Hinds +1 位作者 Ximeng Zheng Etsuko N. Moriyama 《Applied Mathematics》 2013年第10期92-108,共17页
The exact evolutionary history of any set of biological taxa is unknown, and all phylogenetic reconstructions are approximations. The problem becomes harder when one must consider a mix of vertical and lateral phyloge... The exact evolutionary history of any set of biological taxa is unknown, and all phylogenetic reconstructions are approximations. The problem becomes harder when one must consider a mix of vertical and lateral phylogenetic signals. In this paper we propose a game theoretic approach to constructing biological networks. The key hypothesis is that evolution is driven by distinct mechanisms that seek to maximize two competing objectives, taxonomic conservation and diversity. One branch of the mathematical theory of games is brought to bear. It translates this evolutionary game hypothesis into a mathematical model in two-player zero-sum games, with the zero-sum assumption conforming to one of the fundamental constraints in nature in mass and energy conservation. We demonstrate why and how a mechanistic and localized adaptation to seek out greater information for conservation and diversity may always lead to a global Nash equilibrium in phylogenetic affinity. Our game theoretic method, referred to as bioinformatic game theory, is used to construct network clusters. As an example, we applied this method to clustering of a multidomain protein family. The protein clusters identified were consistent with known protein subfamilies, indicating that this game-theoretic approach provides a new framework in biological sequence analysis, especially in studying gene-genome and domain-protein relationships. 展开更多
关键词 BIOINFORMATIC GAME THEORY BIOLOGICAL Network Evolutionary GAME THEORY NASH Dynamics BNN Equations
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Biological characteristics of marine bacterium S-9801 strain and its culture conditions of pigment production 被引量:2
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作者 Tian Li He Peiqing +3 位作者 Wu Hongqing Wen Zhanbo Liu Chenlin Li Guangyou 《Acta Oceanologica Sinica》 SCIE CAS CSCD 2002年第4期541-545,共5页
Strain of Flavobacterium sp.(S-9801),was screened from 207 strains of marine bacteria isolated from the Bohai Sea continental shelf and the Zhujiang Estuary,for its red pigment production.The biological characteristic... Strain of Flavobacterium sp.(S-9801),was screened from 207 strains of marine bacteria isolated from the Bohai Sea continental shelf and the Zhujiang Estuary,for its red pigment production.The biological characteristics of strain S-9801 and culture conditions of pigment production have been checked out in this study. The color of the bacterial colony on 2216E medium was from coccineus to rose bengal. Optimum culture conditions were sodium chloride concentration(g/dm3),10~30;pH,3~8;temperature,25~28℃;tryptone and yeast extract as nitrogen sources and glucose as carbon source. Under optimum conditions,pigment accumulation started after 12 h,reaching a maximum rate of synthesis at 36 h. 展开更多
关键词 Marine bacteria pigment production biological characteristics culture conditions
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Effect of Diet,Photoperiod and Host Density on Parasitism of Anisopteromalus calandrae on the Tobacco Beetle and Biological Parameters of the Parasitoid 被引量:1
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作者 Kássia C.F.Zilch Simone M.Jahnke +1 位作者 Andreas Kohler Eduarda Bender 《American Journal of Plant Sciences》 2017年第12期3218-3232,共15页
Lasioderma serricorne is known to be pest of tobacco, besides of attacking other products in storage. Anisopteromalus calandrae is an ectoparasitoid of coleopteran larvae also parasitizing the tobacco beetle. This stu... Lasioderma serricorne is known to be pest of tobacco, besides of attacking other products in storage. Anisopteromalus calandrae is an ectoparasitoid of coleopteran larvae also parasitizing the tobacco beetle. This study was aimed to evaluate the parasitism of A. calandrae on different densities of L. serricorne larvae grown in different diets and photoperiods, and to record the longevity and reproductive potential of A. calandrae. Individuals of L. serricorne were raised in three diets: wheat flour (F);wheat flour and brewer’s yeast (FY) and wheat flour and dried tobacco (FT). Different amounts of host larvae (10, 20, 50 and 100) for each diet were exposed to a couple of parasitoids. The same larval densities from diet F were exposed for 24 h to a couple of adult parasitoids maintained in three photoperiods (0:24, 12:12 and 24:0 - scotophase: photophase). The highest values of apparent parasitism were in the density of 50 larvae in the FY diet (96.34%) and 100 F (92.91%). There was no significant difference in the parameters in each photoperiod in all larval densities. However, the treatment in which hosts and parasitoids always remained in scotophase, was the one that had a significantly higher sex ratio. Females had longer longevity than males surviving for up to 25 days. On the fourth day of larvae exposure occurred, the maximum number of offspring generated. It is inferred that A. calandrae has potential to be used as a control agent for coleopterans that attack stored products. 展开更多
关键词 Abiotic Factors Anisopteromalus calandrae Biological Control Lasioderma serricorne Reproductive Potential
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How is the biological information arranged in genome?
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作者 Masaharu Takeda 《American Journal of Molecular Biology》 2012年第3期171-186,共16页
The four nucleotides (bases), A. T. G and C were sophisticatedly arranged in the structural features in a single-strand of genomic DNA, 1) reverse-complement symmetry of base or base sequences, 2) bias of four bases, ... The four nucleotides (bases), A. T. G and C were sophisticatedly arranged in the structural features in a single-strand of genomic DNA, 1) reverse-complement symmetry of base or base sequences, 2) bias of four bases, 3) multiple fractality of the distribution of each four bases depending on the distance in double logarithmic plot (power spectrum) of L (the distance of a base to the next base) vs. P(L) (the probability of the base-distribution at L), regardless species, forms, genome-sizes and GC-contents. In small genomes such as viruses and plasmids, the multiple fractality might be occasionally hard to distinguish clearly with the power-low-tail region (multi-fractal dimension) because of the low base numbers. In this review article, the author showed that 1) the structural features for the biologically active genomic DNA were observed all living cells including the organelle- and the viralgenome, 2) the potentiality of a new analytical method of the genome structure based on the appearance frequency, Sequence Spectrum Method (SSM) could be analyzed DNA, RNA and protein on genome, 3) the structural features of genome might be related the biological complexity. These findings might be useful extremely to understand the living cells, and the entire genome as a “field” of biological information should need to analyze. 展开更多
关键词 Entire GENOME BIOLOGICAL INFORMATION Field LIVING CELLS
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Biological Function of REE in Plants & Microbes
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作者 邱关明 李伟 +1 位作者 李喜坤 周威 《Journal of Rare Earths》 SCIE EI CAS CSCD 2005年第6期645-652,共8页
Rare earth elements (REE) and their compounds years. The bioinorganic chemical research of REE during the are widely applied in agronomic and medical fields for many past few years indicates that REE play important ... Rare earth elements (REE) and their compounds years. The bioinorganic chemical research of REE during the are widely applied in agronomic and medical fields for many past few years indicates that REE play important roles in the promotion of photosynthetic rate as well as root absorption, regulation of hormone and nitrogen metabolism, and suppression of microbes, etc. The metallic or non-metallic targets of key biomolecule in various physiological processes can be chosen by REE for the chelation or replacement, which enables REE to regulate the biological functions or behaviors of those biomolecule and consequently leads to significant embodiment of biological function of REE in plants and microbes. Overdose of REE, however, shows an inhibitory effect on living organisms. Therefore, this paper proposes two suggestions that will be available in the extension of full use of REE's biological function. One is to obey the dose law of REE and control REE concentrations within a safe range. The other is to further test the bioaccumulation and long-period influence of REE on organisms. 展开更多
关键词 bioinorganic chemistry biological function of REE plants and microbes dosage effect BIOACCUMULATION rare earths
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Preliminary study on ecological environment and biological resources of Qinba areas
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作者 LI Ben ZHANG Xiao-yao +1 位作者 FENG Si-qi ZHANG Xiao-ying 《中国药理学与毒理学杂志》 CAS 北大核心 2021年第10期765-765,共1页
The Qinba areas,located in the Central China,represent 317000 km2,cover 6 provinces.The major mountain of Qinba areas,the Qinling,separates China North and South.This region is one of the areas with the most biodivers... The Qinba areas,located in the Central China,represent 317000 km2,cover 6 provinces.The major mountain of Qinba areas,the Qinling,separates China North and South.This region is one of the areas with the most biodiversity and ecological importance in China and globally,and considered as natural gene bank and bio-resource bank.Qinba mountain areas,together with the Alps in Europe and the Rocky Mountains in North America,are known as the"Three sisters of the earth"by the geological and biological circles.Most of the lands in this region are protected as national park,natural reserve,water resource protection area,etc.These areas have well preserved ecosystem and breeding and habitat area for many endangered species of plants and animals,inculding Panda.In this region,there are more than 4000 species of higher plants,about 2000 species of medicinal plants and animals,200 species of wild ornamental plants and 180 species of economic fungi with edible and medicinal value in those areas.Medicinal plant cultivation,eco-agriculture and ecotourism are the major industries in this region.The State Key Laboratory of Biological Resources and Ecological Environment of Qinba Areas,located in Hanzhong,the central city of Qinba,is focusing on pan-regional biological resources research and rational utilization,ecological protection,and comprehensive and coordinated regional development. 展开更多
关键词 Qinba mountain areas ECOSYSTEM biological resources BIODIVERSITY medicinal plant regional develop⁃ment
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Evaluation of the Microbiological Quality of Different Moroccan Drinking Water in the Beni Mellal Region
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作者 Rachid Hnini Said Ihbour +4 位作者 Lhou Ouhida Hasna Merzouki Ahmed Ait Chaoui Fatiha Chigr Mohamed Najimi 《Journal of Geoscience and Environment Protection》 2019年第5期105-115,共11页
Drinking water is water that does not contain pathogens or chemicals at levels that may be harmful to health. Beni Mellal region, one of the major rich areas in ground and surface water in Morocco (the rivers like Oum... Drinking water is water that does not contain pathogens or chemicals at levels that may be harmful to health. Beni Mellal region, one of the major rich areas in ground and surface water in Morocco (the rivers like Oum Errabia, Darna, ...;Bin el-Ouidane and martyr Ahmed El Hansali dams and sources like Ain Asserdoune, …) is located in the North-Centre of Morocco. The main objective of the present study was to evaluate the microbiological quality of different drinking waters originated from sources, faucets, fountains and wells in the Beni Mellal city and its agricultural surrounding areas. For this, hygienic quality indicator parameters of water quality were determined by assessing the analysis of Total Coliforms Count, Fecal Coliforms Count, streptococcus D and revivable germs while germs such as Anaerobic Sulphite-reducing Bacteria, S. aureus and Salmonella sp, were carried out according to national and international standards. The analysis of the microbiological results found for all the different samples waters investigated in this study revealed that the waters originated from fountains, faucets and sources were proper for main consumption at microbiological point of view while the wells waters were improper for consumption according to norms. Finally, it appears, from the results obtained, that the potential risk of infection of water consumers especially (groundwater) calls for prompt intervention in order to alleviate the potential health impact of water-borne diseases in the community. From this, a proper sanitary survey and implementation of water and sanitation projects in the community is recommended. 展开更多
关键词 Water QUALITY MICROBIOLOGICAL Analysis STANDARDS Beni Mellal Morocco
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Biological Control of the Weed Sesbania exaltata Using a Microsclerotia Formulation of the Bioherbicide <i>Colletotrichum truncatum</i>
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作者 Clyde D. Boyette Hamed K. Abbas +2 位作者 Bobbie Johnson Robert E. Hoagland Mark A. Weaver 《American Journal of Plant Sciences》 2014年第18期2672-2685,共14页
Colletotrichum truncatum, grown on rice grain (3 to 4 weeks, 22°C to 24°C) produced a fungus-infested rice mixture of microsclerotia and conidia (spores) in a ratio of ~9:1, respectively. Greenhouse tests of... Colletotrichum truncatum, grown on rice grain (3 to 4 weeks, 22°C to 24°C) produced a fungus-infested rice mixture of microsclerotia and conidia (spores) in a ratio of ~9:1, respectively. Greenhouse tests of this formulation (0.4 to 50 mg finely-ground fungus-rice product) which applied pre-emergence to 5 cm2 of soil surface, caused 22% to 96% hemp sesbania plant mortality, after 14 days. Post-emergence treatment (fungus-rice aqueous formulation;2.4 × 105 microsclerotia ml-1, 30% unrefined corn oil and 0.2% Silwet L-77 surfactant) of weeds surviving the pre-emergence application, resulted in 93% mortality, after 14 days. Based on greenhouse results, field tests were undertaken: 1) pre-emergence treatment (fungus-rice formulation at 2.4 × 105 microsclerotia cm-2), 2) post-emergence (fungus-rice product in 30% unrefined corn oil, 0.2% Silwet) only treatment, applied 15 days after planting and 3) pre-emergence treatment followed by post-emergence treatment (fungus-rice product in 30% unrefined corn oil, 0.2% Silwet) applied 15 days after planting to surviving weeds. Control treatments were: 1) autoclaved rice product sans fungus, 2) unrefined corn oil (30% unrefined corn oil, 0.2% Silwet in water) and 3) untreated plants. Planting dates were: early season (April-May), early-mid season (June-July), late-mid season (July-August), and late season (September-October). Weed mortality was recorded at 15 days for the pre-plus post-treatment, and at 30 days after planting for the pre-emergence only and the post-treatment only. The early season, pre-emergence treatment caused 67% hemp sesbania mortality (3-yr average) within 15 days and the post-emergence treatment caused 91% mortality of the surviving weeds. In the late-mid-season, pre-emergence treatment caused minimal (<5%) mortality at 15 days, but mortality in the post-emergence treatment was >80%. Results suggest that seasonal environmental conditions are important in the efficacy of this C. truncatum-rice product formulation when applied pre- or post-emergence to this onerous weed. 展开更多
关键词 BIOHERBICIDE Biological WEED Control COLLETOTRICHUM truncatum Mycoherbicide SESBANIA exaltata MICROSCLEROTIA Solid Growth Media Substrate
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Biological Characteristics of Root Rot Pathogen on Sambucus chinensis
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作者 Liu Ziying Zhou Xiuling 《Plant Diseases and Pests》 CAS 2013年第6期18-20,26,共4页
Effects of different media,pH values,temperatures,carbon and nitrogen sources on mycelial growth and sporulation of root rot pathogen on Sambucus chinensis was determined in the paper.The results showed that root rot ... Effects of different media,pH values,temperatures,carbon and nitrogen sources on mycelial growth and sporulation of root rot pathogen on Sambucus chinensis was determined in the paper.The results showed that root rot pathogen on S.chinensis was identified as Fusariumsp.The mycelial growth and sporulation of Fusariumsp.in PSA medium was the best;the optimal temperature for mycelial growth and sporulation was from 25℃ to 30℃ and the optimal temperature was 28℃;the suitable pH values for mycelial growth and sporulation was from 5 to 7,and the optimum pH value was 6;the absence or presence of carbon sources had significant effect on growth of Fusariumsp.;sucrose was the best carbon source utilized in mycelial growth,while lactose was the worst; KNO3 was the best nitrogen source utilized in mycelial growth,while(NH4) 2 SO4 was the worst one. 展开更多
关键词 Sambucus chinensis Lindl. Root rot Biological characteristics
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Effect of Domestic Wastewater as Co-Substrate on Biological Stain Wastewater Treatment Using Fungal/Bacterial Consortia in Pilot Plant and Greenhouse Reuse
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作者 Pedroza-Camacho Lucas David Lores-Acosta Juan Camilo +8 位作者 Rojas-Enríquez Johans Farid Mateus-Maldonado Juan Felipe Puentes Cindy Stephanie Ramírez-Rodríguez Julio Mendez-Casallas Francy Janeth Salcedo-Reyes Juan Carlos Díaz-Ariza Lucía Ana Lozano-Puentes Hair Santiago Pedroza-Rodríguez Aura Marina 《Journal of Water Resource and Protection》 2018年第3期369-393,共25页
In this study, a pilot wastewater treatment plant was used to evaluate the co-treatment of biological-staining residues and domestic wastewater under non-sterile conditions. A novel microbial consortia formed by Trame... In this study, a pilot wastewater treatment plant was used to evaluate the co-treatment of biological-staining residues and domestic wastewater under non-sterile conditions. A novel microbial consortia formed by Trametes versicolor, Trametes sp, Pleurotus ostreatus, Pseudomonas fluorescens, Pseudomonas azotoformans, Pseudomonas sp, Enterobacter xianfangensis and Bacillus subtillis was inoculated in an extended aeration type bio-reactor. The treatment units were operated during three consecutive cycles during a period of 147 h. After the last operating cycle, the concentrations of Chemical Oxygen Demand, Biochemical Oxygen Demand, Color Units, Total suspended solids, and the pH value were 1695 mg/L, 105 mg/L, 106 CU, 5), 1367 (CU), 566 mg/L (TSS) and 7.0 (pH) respectively. The reduction of pollutants load was related with the ratio of the two types of wastewater (3.5:0.5) combined to increase biodegradability, the concentration of fungi and bacteria used in the consortia (30 × 103 - 55 × 106 CUF/mL Total Fungi and 70 × 107 - 83 × 108 CFU/mL of Total Bacteria) and ligninolytic enzymes production, Laccase (13 - 96 U/L), MnP (9.8 - 39 U/L) and LiP (0.3 - 5.3 U/L). The post-treated effluent was used as irrigation water. Lolium perenne plants were watered during 60 days with post-treated effluent. The results of root weight showed that there are significant differences between the initial water and the effluent obtained after the operational cycles (p = 0.00470). The highest root weights (1 - 1.12 g) were found in plants irrigated with water obtained from the last treatment cycle. 展开更多
关键词 Fungal/Bacterial Consortia BIOLOGICAL Staining and Domestic Wastewater Co-Treatment and Irrigation REUSE
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