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Research Progress on the Growth-Promoting Effect of Plant Biostimulants on Crops
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作者 Qi Lu Longfei Jin +3 位作者 Cuiling Tong Feng Liu Bei Huang Dejian Zhang 《Phyton-International Journal of Experimental Botany》 SCIE 2024年第4期661-679,共19页
A Plant Biostimulant is any substance or microorganism applied to plants to enhance nutrition efficiency,abioticstress tolerance,and/or crop quality traits,regardless of its nutrient content.The application of Plant b... A Plant Biostimulant is any substance or microorganism applied to plants to enhance nutrition efficiency,abioticstress tolerance,and/or crop quality traits,regardless of its nutrient content.The application of Plant biostimulants(PBs)in production can reduce the application of traditional pesticides and chemical fertilizers and improvethe quality and yield of crops,which is conducive to the sustainable development of agriculture.An in-depthunderstanding of the mechanism and effect of various PBs is very important for how to apply PBs reasonablyand effectively in the practice of crop production.This paper summarizes the main classification of PBs;Thegrowth promotion mechanism of PBs was analyzed from four aspects:improving soil physical and chemical properties,enhancing crop nutrient absorption capacity,photosynthesis capacity,and abiotic stress tolerance;At thesame time,the effects of PBs application on seed germination,seedling vigor,crop yield,and quality were summarized;Finally,how to continue to explore and study the use and mechanism of PBs in the future is analyzedand prospected,to better guide the application of PBs in crop production in the future. 展开更多
关键词 Plant biostimulants growth promoting effect crop production
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NUDT5 promotes the growth,metastasis,and Warburg effect of IDH wild-type glioblastoma multiforme cells by upregulating TRIM47
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作者 Zi-Fa Zhang Shu-Ming Liu 《Asian Pacific Journal of Tropical Biomedicine》 SCIE CAS 2024年第2期82-92,共11页
Objective:To explore the regulatory mechanism of NUDT5 in glioblastoma multiforme(GBM).Methods:GEPIA database was used to predict the expressions of NUDT5 and tripartite motif family proteins 47(TRIM47)in GBM patients... Objective:To explore the regulatory mechanism of NUDT5 in glioblastoma multiforme(GBM).Methods:GEPIA database was used to predict the expressions of NUDT5 and tripartite motif family proteins 47(TRIM47)in GBM patients.RT-qPCR and Western blot analyses were performed to examine NUDT5 expression in GBM cells.LN-229 cell proliferation,migration as well as invasion were estimated by CCK-8,colony formation,wound healing,and Transwell assays following interference with NUDT5.ECAR assay,L-lactic acid kit,glucose detection kit,and ATP detection kit were applied for the detection of glycolysis-related indexes.Co-immunoprecipitation experiment was carried out to verify the relationship between NUDT5 and TRIM47.Results:GEPIA database showed that NUDT5 expression was significantly increased in GBM patients.Inhibiting the expression of NUDT5 in GBM cells significantly suppressed the viability,proliferation,invasion,migration,and glycolysis of GBM cells.Moreover,TRIM47 was highly expressed in GBM cells and interacted with NUDT5.Overexpression of TRIM47 partially reversed the inhibitory effect of NUDT5 downregulation on the proliferation,metastasis,and glycolysis of GBM cells.Conclusions:NUDT5 promotes the growth,metastasis,and Warburg effect of GBM cells by upregulating TRIM47.Both NUDT5 and TRIM47 can be used as targets for GMB treatment. 展开更多
关键词 Glioblastoma multiforme NUDT5 TRIM47 growth METASTASIS Warburg effect
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Biotransformation of Shrimp Wastes by Bacillus subtilis OKF04 and Evaluation of Growth Promoting Effect in Crop Planting
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作者 HU Zelin PAN Zhaoyang +3 位作者 ZHAO Tianyu WANG Yongzhen SUN Jianan MAO Xiangzhao 《Journal of Ocean University of China》 SCIE CAS CSCD 2023年第5期1383-1392,共10页
In this study,we proposed a reliable and sustainable technique for the clean utilization of shrimp wastes,which can yield a solid inoculant of Bacillus subtilis OKF04 containing micronutrients at low cost without the ... In this study,we proposed a reliable and sustainable technique for the clean utilization of shrimp wastes,which can yield a solid inoculant of Bacillus subtilis OKF04 containing micronutrients at low cost without the risk of contamination.Study of the culture conditions revealed that the head of shrimp Litopenaus vannamei and the wheat bran acted as suitable substrates for the growth of B.subtilis OKF04.With 60%initial moisture content,30℃culture temperature,and 5%inoculation amount,followed by 48 hours of fermentation and 0.5%soluble starch added during the drying process(50℃for 6h),a solid B.subtilis OKF04 inoculant with a spore amount of 2.4×10^(10)CFU g^(-1)and a high amino acid content was obtained.The solid B.subtilis OKF04 inoculant was applied to cultivate pakchoi under pot experiment.As the result,of adding to,the size of stems and leaves,nutritional composition,and physiological activity of pakchoi were significantly(P<0.05)enhanced by solid B.subtilis OKF04 inoculant.B.subtilis OKF04 also significantly(P<0.05)increased the soil’s nutrient content and improved its microbial composition.Furthermore,pakchoi cultivated with a low dose of solid B.subtilis OKF04 inoculant(0.05 g kg^(-1)soil)resulted in the best results.This study provides a new method for the preparation of microbial inoculants with solid waste shrimp heads. 展开更多
关键词 shrimp wastes Bacillus subtilis OKF04 INOCULANT solid state fermentation crop growth promotion
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Multiphasic characterization of a plant growth promoting bacterial strain, Burkholderia sp.7016 and its effect on tomato growth in the field 被引量:12
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作者 GAO Miao ZHOU Jian-jiao +3 位作者 WANG En-tao CHEN Qian XU Jing SUN Jian-guang 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2015年第9期1855-1863,共9页
Aiming at searching for plant growth promoting rhizobacteria (PGPR), a bacterium strain coded as 7016 was isolated from soybean rhizosphere and was characterized in the present study. It was identiifed as Burkholderia... Aiming at searching for plant growth promoting rhizobacteria (PGPR), a bacterium strain coded as 7016 was isolated from soybean rhizosphere and was characterized in the present study. It was identiifed as Burkholderia sp. based on 16S rDNA sequence analysis, as wel as phenotypic and biochemical characterizations. This bacterium presented nitrogenase activity, 1-aminocyclopropane-1-carboxylic acid (ACC) deaminase activity and phosphate solubilizing ability;inhibited the growth of Sclerotinia sclerotiorum, Gibberel a zeae and Verticil ium dahliae;and produced smal quantities of indole acetic acid (IAA). In green house experiments, signiifcant increases in shoot height and weight, root length and weight, and stem diameter were observed on tomato plants in 30 d after inoculation with strain 7016. Result of 16S rDNA PCR-DGGE showed that 7016 survived in the rhizosphere of tomato seedlings. In the ifeld experiments, Burkholderia sp. 7016 enhanced the tomato yield and signiifcantly promoted activities of soil urease, phosphatase, sucrase, and catalase. Al these results demonstrated Burkholderia sp. 7016 as a valuable PGPR and a candidate of biofertilizer. 展开更多
关键词 PGPR Burkholderia sp. multiphasic characterization promoting growth BIOFERTILIZER
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Disease resistant and Growth promoting Effect of Nvhuang Fuzheng Oral Liquid on Chicks and Its Enhancement Effect on Infectious Bursal Disease Virus (IBDV) Vaccine 被引量:1
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作者 Zhu Maixun Yu Chuncheng +3 位作者 Zheng Hua Zhang Yifan Yan Zhiqiang Zhai Shaoqin 《Animal Husbandry and Feed Science》 CAS 2017年第5期298-302,共5页
[Objective] The paper was to investigate the clinical effects of Nvhuang Fuzheng oral liquid on immunity enhancement,disease resistance and growth promotion of chicks. [Method] In the test,3-day-old Daninghe chicks we... [Objective] The paper was to investigate the clinical effects of Nvhuang Fuzheng oral liquid on immunity enhancement,disease resistance and growth promotion of chicks. [Method] In the test,3-day-old Daninghe chicks were divided into normal control group,Nvhuang Fuzheng oral liquid group and positive control group. Chicks were administrated with drugs for 7 d before immunization. After vaccination,chicks were observed for 4 weeks,to statistically count the incidence state of chicks. Effects of Nvhuang Fuzheng oral liquid on growth performance,serum immunoglobulin,cytokine and infectious bursal disease virus( IBDV)antibody were studied. [Result] Compared to normal control group,Nvhuang Fuzheng oral liquid significantly improved the weight of chicks and reduced the feed gain ratio( P < 0. 05); significantly reduced the morbidity and mortality and increased the survival rate of chicks( P < 0. 05); continuously increased IgG,IgM and IL-2 content significantly in the serum of chicks( P < 0. 05); extremely improved IFN-γ content in the serum at 7 d post drug administration( P < 0. 01). After vaccination of IBDV vaccine for 1 and 2 weeks,Nvhuang Fuzheng oral liquid significantly improved IBDV antibody titer and positive rate of chicks compared to normal control group( P < 0. 05); at 3 weeks post immunization,the antibody positive rate reached 100%. [Conclusion]Nvhuang Fuzheng oral liquid improved immunoglobulin and cytokine levels of chicks,enhanced the immunity and reduced the occurrence of diseases( the morbidity was reduced by 15% and the mortality was reduced by 30%),enhanced disease-resistant ability and promoted the growth of chicks. Meantime,it improved the immune effect of IBDV vaccine. 展开更多
关键词 Nvhuang Fuzheng oral liquid CHICK growth promotion DISEASE RESISTANT ability Immune function
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Hypocholesterolemic and Growth Promoting Effects of <i>Lactobacillus plantarum</i>AK Isolated from a Nigerian Fermented Cereal Product on Rats Fed High Fat Diet 被引量:1
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作者 B. O. Akanbi O. O. Agarry 《Advances in Microbiology》 2014年第3期160-166,共7页
The hypocholesterolemic effect of Lactobacillus plantarum AK strain was tested in rats fed high cholesterol diet. The lipid profile, growth rate and microflora dynamics of rats that received L. plantarum AK strain wer... The hypocholesterolemic effect of Lactobacillus plantarum AK strain was tested in rats fed high cholesterol diet. The lipid profile, growth rate and microflora dynamics of rats that received L. plantarum AK strain were significantly different from the control group (p 0.5). In particular low density lipoprotein was lower in serum of rats that received L. plantarum than those of the control group. The test group had a higher growth rate, higher lactobacilli counts but lower coliform and Escherichia coli counts over a period of 40 days and these observed differences were significant (p 0.05). These results are indicative of the abilities of this strain to lower serum cholesterol levels as well as to improve intestinal microbial balance as observed in the microflora dynamics over a period of 40 days. 展开更多
关键词 Lactobacillus PLANTARUM Cholesterol growth promotion Ogi Nigeria Probiotic
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Study on Promoting Effect of Mycorrhizal Fungi Inoculation on Pinus bungeana Growth 被引量:1
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作者 汤珧华 《Agricultural Science & Technology》 CAS 2013年第7期1005-1007,1020,共4页
ObjectiveThis study aimed to investigate the promoting effect of mycorrhizal fungi inoculation on growth of Pinus bungeana. MethodPinus bungeana young trees and ancient trees were inoculated with different doses of Pi... ObjectiveThis study aimed to investigate the promoting effect of mycorrhizal fungi inoculation on growth of Pinus bungeana. MethodPinus bungeana young trees and ancient trees were inoculated with different doses of Pisolithus tinctorius, to investigate the effect on Pinus bungeana growth. ResultAfter inoculated with Pisolithus tinctorius, the mycorrhizal infection rate in roots of Pinus bungeana young trees and ancient trees increased significantly; mycorrhizal infection rate of Pinus bungeana young trees was enhanced with the increasing dose of Pisolithus tinctorius; mycorrhizal fungi inoculation could significantly promote the growth of Pinus bungeana ancient trees, which also had significant promoting effect on the plant height of Pinus bungeana young trees but had no significant effect on the diameter at breast height; in addition, mycorrhizal fungi inoculation could promote the absorption of nitrogen and phosphorus by Pinus bungeana young trees. ConclusionThis study provided technical support for the cultivation of Pinus bungeana in the south of China. 展开更多
关键词 Mycorrhizal fungi growth promotion Pinus bungeana
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Identification of Growth-promoting Bacteria from Rhizosphere of Pastures and Their Effects on Growth of Lotus corniculatus L. 被引量:1
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作者 Lu CAI Yajiao LI +2 位作者 Xiaoxia LIU Xin WEI Jianhong SHU 《Agricultural Biotechnology》 CAS 2019年第5期106-111,共6页
[Objectives] This study was conducted to explore the interaction between nitrogen-fixing and phosphate-solubilizing strains and the optimal combination of different functional strains,in order to provide a theoretical... [Objectives] This study was conducted to explore the interaction between nitrogen-fixing and phosphate-solubilizing strains and the optimal combination of different functional strains,in order to provide a theoretical basis for the development of PGPR compound fertilizers suitable for local environment.[Methods] In this study,16S rDNA gene sequence analysis was used to identify fast-growing and competitive strains from pasture nodules and rhizosphere soils in Guizhou Province,and three representative Rhizobia and phosphorus-solubilizing bacteria were chosen for the test of bacterial combination when reducing 50% of nitrogen and 30% of phosphorus.The effects of different strain combinations on the plant height,root length,aboveground and underground biomass of Lotus corniculatus L.were investigated,and the total nitrogen and total phosphorus contents of the plants were determined.[Results] The mixed bacterial agents could promote the increase of root biomass,and the effects of A1,A3,B3 and C3 were the most obvious.The fresh weight and dry weight of the roots of L.corniculatus increased by 30.35%-168.45% and 26.43%-180.00%,respectively,and A3,B3,B2 and C3 had the best effects.The total phosphorus content of the plants increased by 12.79%-55.25% compared with the CK2;and most of the bacterial agents with significant growth-promoting effects showed decreased total nitrogen contents,while those with non-significant growth-promoting effects showed significantly-increased total nitrogen contents,which were not as much as the CK1.Comprehensively,the most productive combination was C3,namely R27-2 Rhinohizobium fredii and P33-3 Stenotrophomonas rhizophila.[Conclusions] This study can provide a theoretical basis for the production and promotion of bacterial fertilizers. 展开更多
关键词 growth-promoting BACTERIA LOTUS corniculatus L. BIOMASS Quality
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Effect of Plant Growth-Promoting Rhizobacteria at Various Nitrogen Rates on Corn Growth 被引量:1
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作者 Yaru Lin Dexter B. Watts +2 位作者 Joseph W. Kloepper Anthony O. Adesemoye Yucheng Feng 《Agricultural Sciences》 2019年第12期1542-1565,共24页
Plant growth-promoting rhizobacteria (PGPR) colonize plant roots and promote plant growth by producing and secreting various chemical regulators in the rhizosphere. With the recent interest in sustainable agriculture,... Plant growth-promoting rhizobacteria (PGPR) colonize plant roots and promote plant growth by producing and secreting various chemical regulators in the rhizosphere. With the recent interest in sustainable agriculture, an increasing number of researchers are investigating ways to improve the efficiency of PGPR use to reduce chemical fertilizer inputs needed for crop production. Accordingly, greenhouse studies were conducted to evaluate the impact of PGPR inoculants on biomass production and nitrogen (N) content of corn (Zea mays L.) under different N levels. Treatments included three PGPR inoculants (two mixtures of PGPR strains and one control without PGPR) and five N application levels (0%, 25%, 50%, 75%, and 100% of the recommended N rate of 135 kg N ha&#8722;1). Results showed that inoculation of PGPR significantly increased plant height, stem diameter, leaf area, and root morphology of corn compared to no PGPR application under the same N levels at the V6 growth stage, but few differences were observed at the V4 stage. PGPR with 50% of the full N rate produced corn biomass and N concentrations equivalent to or greater than that of the full N rate without inoculants at the VT stage. In conclusion, mixtures of PGPR can potentially reduce inorganic N fertilization without affecting corn plant growth parameters. Future research is needed under field conditions to determine if these PGPR inoculants can be integrated as a bio-fertilizer in crop production nutrient management strategies. 展开更多
关键词 Plant growth-promoting RHIZOBACTERIA CORN growth NITROGEN FERTILIZATION Root Morphology NITROGEN Use Efficiency
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Research Progress of Mechanism of Action of Plant Growth Promoting Rhizobacteria 被引量:7
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作者 夏艳 徐茜 +3 位作者 林勇 陈志厚 孔凡玉 张成省 《Agricultural Science & Technology》 CAS 2014年第1期87-90,110,共5页
The paper first introduces the definition and classification of plant growth promoting rhizobacteria (PGPR), then reviews the research achievements on the mechanism of action of plant growth promoting rhizobacteria,... The paper first introduces the definition and classification of plant growth promoting rhizobacteria (PGPR), then reviews the research achievements on the mechanism of action of plant growth promoting rhizobacteria, including growth pro-moting mechanism and bio-control mechanism, subsequently lists the use of excel-lent plant growth promoting rhizobacteria strains in recent years, especial y Pseu-domonas and Bacil us strains, and final y discusses problems existing in this area and points out issues requiring further exploration, including PGPR screening meth-ods, preservation methods, mechanism of action, in order to commercialize PGPR as soon as possible and practical y realize its application to production. 展开更多
关键词 Plant growth promoting rhizobacteria(PGPR) Mechanism of action Ex-cellent strains
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Studies on the Isolation of Endophytic Bacteria from Tomato Plants and Their Growth-promoting Activities 被引量:10
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作者 张立新 宋江华 刘慧平 《Agricultural Science & Technology》 CAS 2008年第5期1-3,69,共4页
[Objective] The study aimed to investigate the growth-promoting activities of endophytic bacteria from tomato plants.[Method]The endophytic bacteria isolated from different tissues of tomato plants were analyzed for t... [Objective] The study aimed to investigate the growth-promoting activities of endophytic bacteria from tomato plants.[Method]The endophytic bacteria isolated from different tissues of tomato plants were analyzed for the effects of their growth-promoting activities on the germination and growth of tomato plants.The bacteria with growth-promoting activity were preliminarily identified.[Result]Totally 59 endophytic bacterial strains were isolated from roots and stems of tomatoes,of which 4 showed significantly growth-promoting activity to germination and growth of tomato.The results suggest that these strains are endowed with the potential capability of growth-promoting.[Conclusion]The endophytic bacteria with growth-promoting activity were found among the isolates from tomato plants.This provided a good foundation for utilization of these bacteria with growth-promoting activity. 展开更多
关键词 TOMATO ENDOPHYTIC BACTERIA ISOLATION growth-promoting activity
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Determination of Growth-promoting and Antagonistic Action of Endophytic Bacteria Strains Itb57 and Itb295 of Tobacco 被引量:1
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作者 汪莹 李小松 +1 位作者 胡建新 马冠华 《Plant Diseases and Pests》 CAS 2011年第1期46-48,共3页
[ Objective ] The paper was to study the growth-promoting and antagonistic action of endophytic bacteria strains Itb57 and Itb295 of tobacco to explore their functions in biological control. [ Method] The growth-promo... [ Objective ] The paper was to study the growth-promoting and antagonistic action of endophytic bacteria strains Itb57 and Itb295 of tobacco to explore their functions in biological control. [ Method] The growth-promoting effects of bacterial suspension ~ff endophytic bacteria Itb57 and Itb295 on tobacco seedling un- der different treatment modes were studied using potting method in greenhouse. The antagonistic action of bacterial suspension of endophytic bacteria Itb57 and Itb295 on Phytophthora nicotianae, Alternaria alternata and Botrytis cinerea were measured by duel culture method. [ Result] Bacterial suspensions of enduphytic bacteria Itb57 and Itb295 had certain growth-promoting effects on tobacco seedling, which could significantly increase the fresh weight and dry weight in aerial part; the growth-promoting effect of soaking + spraying and irrigating treatment was the best. Itb57 strain had good antagonistic action against P. nicotianae. A. alterna- ta and B. cinerea, while Itb295 strain only had good antifungal effect against P. nicotianae. [ Conclusion] The results provided basis for the study and application of tobacco endophytic bacteria strains Itb57 and Itb295 in biocontrol of tobacco diseases. 展开更多
关键词 TOBACCO Endophytic bacteria growth-promoting effect Antagonistic activity
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Promoting effects of Fe_2O_3 to Pt electrocatalysts toward methanol oxidation reaction in alkaline electrolyte 被引量:1
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作者 宋桂花 杨海芳 +5 位作者 孙雅飞 王静怡 曲卫东 张强 马令娟 冯媛媛 《Chinese Journal of Catalysis》 SCIE EI CAS CSCD 北大核心 2017年第3期554-563,共10页
Fe_2O_3 nanorods and hexagonal nanoplates were synthesized and used as the promoters for Pt electrocatalysts toward the methanol oxidation reaction(MOR) in an alkaline electrolyte.The catalysts were characterized by... Fe_2O_3 nanorods and hexagonal nanoplates were synthesized and used as the promoters for Pt electrocatalysts toward the methanol oxidation reaction(MOR) in an alkaline electrolyte.The catalysts were characterized by scanning electron microscopy,transmission electron microscopy,X-ray diffraction,X-ray photoelectron spectroscopy,cyclic voltammetry and chronoamperometry.The results show that the presence of Fe_2O_3 in the electrocatalysts can promote the kinetic processes of MOR on Pt,and this promoting effect is related to the morphology of the Fe_2O_3 promoter.The catalyst with Fe_2O_3 nanorods as the promoter(Pt-Fe_2O_3/C-R) exhibits much higher catalytic activity and stability than that with Fe_2O_3 nanoplates as the promoter(Pt-Fe_2O_3/C-P).The mass activity and specific activity of Pt in a Pt-Fe_2O_3/C-R catalyst are 5.32 A/mgpt and 162.7 A/m^2_(Pt),respectively,which are approximately 1.67 and 2.04 times those of the Pt-Fe_2O_3/C-P catalyst,and 4.19 and 6.16 times those of a commercial PtRu/C catalyst,respectively.Synergistic effects between Fe_2O_3 and Pt and the high content of Pt oxides in the catalysts are responsible for the improvement.These findings contribute not only to our understanding of the MOR mechanism but also to the development of advanced electrocatalysts with high catalytic properties for direct methanol fuel cells. 展开更多
关键词 PLATINUM Ferric oxide promoting effect Methanol electrooxidation reaction Alkaline electrolyte
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Can environmental sustainability be decoupled from economic growth? Empirical evidence from Eastern Europe using the common correlated effect mean group test 被引量:1
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作者 Kwaku ADDAI Berna SERENER Dervis KIRIKKALELI 《Regional Sustainability》 2023年第1期68-80,共13页
The European Union(EU) and Organisation for Economic Co-operation and Development(OECD) aim to develop long-term policies for their respective member countries. Having observed increasing dangers to the environment po... The European Union(EU) and Organisation for Economic Co-operation and Development(OECD) aim to develop long-term policies for their respective member countries. Having observed increasing dangers to the environment posed by rising economic growth, they are seeking pathways to enable policy action on economic growth and environmental sustainability. Given the facts in theoretical and empirical studies, this study assessed the validity of the decoupling hypothesis by investigating asymmetricity in the relationship between environmental sustainability and economic growth in nine Eastern European countries from 1998 to 2017 using the cross-section augmented Dickey-Fuller(CADF) unit root, panel corrected standard error(PCSE), common correlated effect mean group(CCEMG), and Dumitrescu Hurlin causality approaches. Both population growth and drinking water are used as controlled variables. The outcomes establish strong cointegration among all the variables of interest. According to the results of CCEMG test, economic growth exerts short-term environmental degradation but has long-term environmental benefits in Eastern Europe;and population growth and drinking water exert a positive effect on environmental sustainability in both the short-and long-run. The results of Dumitrescu Hurlin causality test indicate that environmental sustainability is unidirectionally affected by economic growth. Based on these outcomes, we suggest the following policies:(1) the EU and OECD should implement member-targeted policies on economic growth and fossil-fuel use towards regulating industrial pollution, water use, and population control;and(2) the EU and OECD member countries should invest in environmental technologies through green research and development(R&D) to transform their dirty industrial processes and ensure productive energy use. 展开更多
关键词 Economic growth Environment sustainability Decoupling Carbon emissions Eastern Europe Common correlated effect mean group(CCEMG)test Econometrics Population growth
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Promoting effect of super absorbent polymer on hydrate formation 被引量:8
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作者 Fei Long Shuanshi Fan Yanhong Wang Xuemei Lang 《Journal of Natural Gas Chemistry》 EI CAS CSCD 2010年第3期251-254,共4页
The effect of super absorbent polymer(SAP) on the formation of tetrahydrofuran(THF) hydrate was studied by the successional cooling method.It was found that THF solution samples with 0.004 wt% and 0.03 wt% of SAP ... The effect of super absorbent polymer(SAP) on the formation of tetrahydrofuran(THF) hydrate was studied by the successional cooling method.It was found that THF solution samples with 0.004 wt% and 0.03 wt% of SAP formed THF hydrate completely during the same cooling process.The corresponding induction time was 16-29 min,14-31 min,respectively,which was obviously shorter than that of THF solution samples without SAP(25-62 min).It indicated that SAP accelerated the formation of THF hydrate.At the same time,the pictures of hydrate formation with and without SAP had been compared.It was found that SAP did not change the morphology of the hydrate.Finally,the mechanism of SAP promoting effect on the formation of THF hydrate was suggested. 展开更多
关键词 super absorbent polymer TETRAHYDROFURAN HYDRATE promoting effect
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Promoting hepatic growth factor in the treatment of heavy type hepatitis and severe chronic hepatitis: a multicenter clinical study 被引量:7
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作者 Jing-Hang Xu, Yan-Yan Yu, Chong-Wen Si, Zheng Zeng, Qin-Huan Wang, Duan-De Luo,Yong-Xing Zhou, Min-De Zeng, Guang-Yan Qiao, Ji-Lu Yao and Wei-Lun Lu Department of Infectious Diseases, First Hospital ofBeijing University, Beijing 100034, China Department of Gastroenterology, Wuhan UnionHospital, Wuhan 430022, China +3 位作者 Department of Gastroentero-logy , Affiliated Tangdu Hospital, Fourth Military Medical University, Xi’an 710038, China Department of Gastroenterology, RenjiHospital, Shanghai 200001 , China Department of InfectiousDiseases, Second Affiliated Hospital, China Medical University, Shenyang110004, China Department of Gastroenterology, Third Affilia-ted Hospital, China Medical University, Shenyang 110004 , China 《Hepatobiliary & Pancreatic Diseases International》 SCIE CAS 2004年第3期381-385,共5页
BACKGROUND: The mortality rate of heavy type hepatitisis high. No special treatment is available except generaltreatment. This multicenter clinical study was designed toobserve the safety and efficacy of promoting hep... BACKGROUND: The mortality rate of heavy type hepatitisis high. No special treatment is available except generaltreatment. This multicenter clinical study was designed toobserve the safety and efficacy of promoting hepatic growthfactor (PHGF) in the treatment of heavy type hepatitis andsevere chronic hepatitis.METHODS: 347 patients with heavy type hepatitis and 324with severe chronic hepatitis were subjected to administra-tion of 120 μg of PHGF per day for 4 weeks on the basis ofgeneral treatment. Those who were being effectively treat-ed would last additional 2 to 4 weeks. Blood routine, urineroutine, blood urea nitrogen (BUN), blood creatinine(Cr), blood ammonia, alpha fetoprotein (AFP), electro-lyte, alanine transaminase (ALT), aspartate transaminase(AST), serum total bilirubin (TBIL), serum direct biliru-bin (DBIL), prothrombin time activity (PTA), total pro-tein (TP) and albumin (ALB) were detected in the pa-tients before treatment, 2 weeks after treatment, and at theend of the treatment. Any side-effect would be recorded.RESULTS: In the patients with severe chronic hepatitis, thetotal effective rate of the treatment was 88. 9% The levelsof ALT, AST and TBIL decreased significantly (P<0.001),whereas those of PTA and ALB increased significantly (P <0.001), and the level of AFP increased slightly. In patientswith heavy type hepatitis, the total effective rate of thistreatment was 78.4%, and patients at different stage showeddifferent results. The total effective rates of patients withearly, medium and terminal stage heavy type hepatitis were89.9%, 84.8% and 27.5%, respectively. No severe side-effect was shown.CONCLUSION: PHGF is effective and safe in the treat-ment of patients with heavy type hepatitis and severe chro-nic hepatitis. But it should be administered early in patientswith heavy type hepatitis so as to get better curative effects. 展开更多
关键词 promoting hepatic growth factor HEPATITIS safety efficacy
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Endophytic bacteria associated with endangered plant Ferula sinkiangensis K. M. Shen in an arid land: diversity and plant growth-promoting traits 被引量:6
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作者 LIU Yonghong GUO Jianwei +5 位作者 LI Li Mipeshwaree D ASEM ZHANG Yongguang Osama A MOHAMAD Nimaichand SALAM LI Wenjun 《Journal of Arid Land》 SCIE CSCD 2017年第3期432-445,共14页
Ferula spp. are traditional medicinal plants found in arid land. Large-scale excavation for extracting bioactive compounds from the plants in arid regions of Xinjiang over the last few years has, however, significandy... Ferula spp. are traditional medicinal plants found in arid land. Large-scale excavation for extracting bioactive compounds from the plants in arid regions of Xinjiang over the last few years has, however, significandy decreased their distributions. Due to the urgent need for preservation of these plant resources, along with the need of searching for alternative source of the useful metabolites, it is important to screen the endophytic microbial resources associated with the plant Ferula sinkiangensis K. M. Shen. In the study, a total of 125 endophytic bacteria belonging to 3 phyla, 13 orders, 23 families, and 29 genera were isolated based on 16S rRNA gene sequencing data. Among the different isolates, three strains isolated from roots were potential novel species of the genera Porphyrobacter, Paracoccus and draycofatopsis. In this study, 79.4% and 57.1% of the total isolates were capable of producing indole-3-acetic acid (IAA) and siderophore, respectively. And, 40.6% of the strains inhibit the growth of fungal pathogen Afternaria alternata, 17.2% and 20.2% strains were positive for antagonism against Vertidllium dahlia 991 and V. dahlia 7, respectively. These results demonstrated that E sinkiangensis is a rich reservoir of endophytic bacterial resources with potential for production of biologically important functions such as plant growth-promoting factors. 展开更多
关键词 endophytic bacteria Ferula sinkiangensis endangered species growth promoting
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Transcriptomic insights into growth promotion effect of Trichoderma afroharzianum TM2-4 microbial agent on tomato plants 被引量:5
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作者 ZHAO Juan LIU Ting +5 位作者 LIU Wei-cheng ZHANG Dian-peng DONG Dan WU Hui-ling ZHANG Tao-tao LIU De-wen 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2021年第5期1266-1276,共11页
Plant growth promoting fungi are receiving increased attention as valuable beneficial microorganisms in crop cultivation due to their capacity to produce bioactive substances,promote plant growth and enhance immune de... Plant growth promoting fungi are receiving increased attention as valuable beneficial microorganisms in crop cultivation due to their capacity to produce bioactive substances,promote plant growth and enhance immune defense functions.In this study,a novel Trichoderma isolate,designated as TM2-4,was screened from healthy tomato rhizosphere soil and identified as Trichoderma afroharzianum.Culture filtrate of the isolate TM2-4 displayed obvious bioactive substance production and an evident effect in promoting tomato seed germination,with hypocotyl length,radical length and vigor index increased by 28.7,19.4 and 62.1%,respectively,after a 100-fold dilution treatment.To assess the promotion effect and related mechanism of isolate TM2-4,the plant biological indexes and gene expression profiles of tomato plants treated with or without T.afroharzianum TM2-4 microbial agent were investigated by greenhouse pot experiment and RNA sequencing.The results demonstrated that T.afroharzianum TM2-4 significantly promoted tomato plant growth in terms of plant height,dry weight,number of leaves per plant and root activity,through efficient colonization in the rhizosphere and root system of the plants.Transcriptome analyses identified a total of 984 differentially expressed genes in T.afroharzianum microbial agent inoculated tomato roots,which were mainly engaged in the biological process of phytohormone homeostasis,antioxidant activity,as well as metabolic pathways including phenylpropanoid biosynthesis and glutathione metabolism.These findings provide useful information for understanding the mechanism of isolate TM2-4 for tomato plant growth promotion,which would facilitate further development of T.afroharzianum TM2-4 microbial agent for use in vegetable crop production. 展开更多
关键词 Trichoderma afroharzianum Solanum lycopersicum L. plant growth promotion transcriptome analyses qRTPCR
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Promoting effect of chloride ions on selective oxidation of methanol to methyl formate over zirconia-supported ruthenium oxide catalysts 被引量:2
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作者 Weizhen Li Hongpeng Zhang +1 位作者 Xiaohui He Haichao Liu 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2013年第3期512-516,共5页
The effect of chloride ions on a monoclinic ZrO2-supported RuOx (RuOx/m-ZrO2) catalyst with a Ru surface density of 0.3 Ru/nm2 was studied in the selective oxidation of methanol to methyl formate (MF) at a low tem... The effect of chloride ions on a monoclinic ZrO2-supported RuOx (RuOx/m-ZrO2) catalyst with a Ru surface density of 0.3 Ru/nm2 was studied in the selective oxidation of methanol to methyl formate (MF) at a low temperature of 373 K. The m-ZrO2 support was Cl-free, and Cl- ions were introduced into the RuOx/m-ZrO2 catalyst by impregnation with zirconium oxychloride or ammonium chloride and subsequent thermal treatment in air at 673 K. The structures of these catalysts were characterized by X-ray diffraction, Raman and X-ray photoelectron spectroscopies. Their reducibility was probed by temperature-programmed reduction in H2. The RuOx domains were present as highly dispersed Rut42- structure on m-ZrO2 with similar reducibility for the RuOx/m-ZrO2 samples irrespective of modification with or without Cl ions. Introduction of appropriate amounts of zirconium oxychloride into RuOx/m-ZrO2 led to a remarkable increase in the methanol oxidation rate and MF selectivity, whereas introduction of ammonium chloride or zirconyl nitrate significantly inhibited the catalytic performance of RuOx/m-ZrO2. The promoting effect of Cl- ions derived from zirconium oxychloride can be tentatively attributed to their roles in facilitating the adsorption of methanol and desorption of MF product or its intermediates. This finding provides novel insights into the promoting effect of Cl- ions on oxides-based catalysts for selective oxidation reactions. 展开更多
关键词 methanol oxidation ruthenium oxide monoclinic zirconia chloride promoting effect methyl formate
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A critical review on phytochemical profile and health promoting effects of mung bean (Vigna radiata) 被引量:7
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作者 Kumar Ganesan Baojun Xu 《Food Science and Human Wellness》 SCIE 2018年第1期11-33,共23页
The seeds and sprouts of mung bean are very common cruise in Asia.Evidence showed that bioactive compounds in mung bean have emerged as an increasing scientific interest due to their role in the prevention of degenera... The seeds and sprouts of mung bean are very common cruise in Asia.Evidence showed that bioactive compounds in mung bean have emerged as an increasing scientific interest due to their role in the prevention of degenerative diseases.All data of in vitro,in vivo and clinical studies of mung bean and its impact on human health were collected from a library database and electronic search.Botanical,phytochemical and pharmacological information was gathered and orchestrated.Remarkable studies have been demonstrated,showing the enhancement of metabolites in mung bean during the sprouting process,which possesses various health benefiting bioactive compounds.These compounds have been frequently attributed to their antioxidant,anti-diabetic,antimicrobial,anti-hyperlipidemic and antihypertensive effect,anti-inflammatory,and anticancer,anti-tumor and anti-mutagenic properties.In this critical review,we aimed to study the insight of the nutritional compositions,phytochemistry,and healthpromoting effects of mung bean and its sprouts.The various curative potential of mung bean provides successive preclinical outcomes in the field of drug discovery and this review strongly recommends that mung bean is an excellent nutritive legume,which modulates or prevents chronic degenerative diseases. 展开更多
关键词 Mung bean Nutritional composition PHYTOCHEMISTRY Health promoting effects
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