Taking Heilongjiang Bayi Agricultural University as an example, the discipline service practice was explored from the aspects such as free network resources and tool use, subject navigation, subject librarians, inform...Taking Heilongjiang Bayi Agricultural University as an example, the discipline service practice was explored from the aspects such as free network resources and tool use, subject navigation, subject librarians, information sharing space and information literacy education. The typical cases were provided;the optimization of utilization method of network resources was put forward;the subject theme navigation was developed;and the information sharing space of specific discipline and other working strategies were carried out. The experience and enlightenment of active service for subject construction, priority service for key subjects, subject service by lay and step and seizing of the opportunity of subject service were summarized, which developed ideas and provided reference to the establishment of deep subject services of general libraries of colleges and universities.展开更多
31 investigated higher agricultural college libraries all provide the reference consulting service. The service mode includes asynchronous reference consulting, synchronous reference consulting, synchronous and asynch...31 investigated higher agricultural college libraries all provide the reference consulting service. The service mode includes asynchronous reference consulting, synchronous reference consulting, synchronous and asynchronous reference consulting, joint reference consulting service and traditional reference consulting service. Service items include interlibrary borrowing and document delivery, reader training, special database, resource navigation and so on. But there are some problems to be solved.展开更多
Low temperature causes rice yield losses of up to 30%–40%,therefore increasing its cold tolerance is a breeding target.Few genes in rice are reported to confer cold tolerance at both the vegetative and reproductive s...Low temperature causes rice yield losses of up to 30%–40%,therefore increasing its cold tolerance is a breeding target.Few genes in rice are reported to confer cold tolerance at both the vegetative and reproductive stages.This study revealed a rice-specific 24-nt miRNA,miR1868,whose accumulation was suppressed by cold stress.Knockdown of MIR1868 increased seedling survival,pollen fertility,seed setting,and grain yield under cold stress,whereas its overexpression conferred the opposite phenotype.Knockdown of MIR1868 increased reactive oxygen species(ROS)scavenging and soluble sugar content under cold stress by increasing the expression of peroxidase genes and sugar metabolism genes,and its overexpression produced the opposite effect.Thus,MIR1868 negatively regulated rice cold tolerance via ROS scavenging and sugar accumulation.展开更多
Atractylodis Rhizoma comes from the dry rhizome of Atractylis lancea or Atractylodes chinensis in the Compositae family,and it is suitable for preventing and treating diseases such as cold,edema,night blindness and rh...Atractylodis Rhizoma comes from the dry rhizome of Atractylis lancea or Atractylodes chinensis in the Compositae family,and it is suitable for preventing and treating diseases such as cold,edema,night blindness and rheumatic arthralgia.Atractylodin is the main active component extracted and isolated from Atractylodis Rhizoma.A large number of studies have found that atractylodin has excellent drug activity in improving gastrointestinal emptying,anti-inflammation,inhibiting malignant tumor and reducing blood lipid.In this paper,the purification process and pharmacological activity of Atractylodin were summarized to provide a theoretical basis for basic research,clinical application and further development and utilization of atractylodin.展开更多
In this paper,the pharmacological effects and molecular mechanisms of sarsasapogenin,such as anti-oxidant,anti-inflammatory and anti-diabetic effects,are reviewed in order to provide a theoretical basis for the subseq...In this paper,the pharmacological effects and molecular mechanisms of sarsasapogenin,such as anti-oxidant,anti-inflammatory and anti-diabetic effects,are reviewed in order to provide a theoretical basis for the subsequent development and clinical application of sarsasapogenin.展开更多
To objectively reflect the relevant situation of researches on think tank service of Chinese university libraries, this paper uses CNKI Database as the retrieval source, the bibliometric analysis method, and CiteSpace...To objectively reflect the relevant situation of researches on think tank service of Chinese university libraries, this paper uses CNKI Database as the retrieval source, the bibliometric analysis method, and CiteSpace, a citation network analysis tool, to make quantitative analysis on the literature data of researches on the think tank service of university libraries;draw the knowledge map of literature authors, organization distribution, keyword co-occurrence, research hotspot distribution, etc.;objectively and comprehensively analyzes the hot topics and cutting-edge trends of researches on the think tank service of libraries, the research includes the following aspects: First, the status quo and orientation of the existing university library think tanks in China;second, it is recommended to carry out research on policy support and system guarantee for university library think tank services;third, integrate big data technology is merged into the construction of university libraries think tanks;fourth, the transformation of library and information institutions to new types of think tanks, including the transformation of knowledge services, disciplinary services, and characteristic think tanks, in order to provide reference for researches and practical work of think tank service of libraries in China.展开更多
Through the analysis of the operation of China’s agricultural science technological and development process, the paper summed up the basic experience of agricultural science technological park and operation mode, in ...Through the analysis of the operation of China’s agricultural science technological and development process, the paper summed up the basic experience of agricultural science technological park and operation mode, in order to run at all levels of agricultural science technological park of science and regional some beneficial references for the development of agricultural economy.展开更多
Unreasonable fertilizer input and low fertilizer utilization seriously restrict the development of maize in Heilongjiang province. In this paper, the effects of biochar based fertilizer on the nutrient content of acid...Unreasonable fertilizer input and low fertilizer utilization seriously restrict the development of maize in Heilongjiang province. In this paper, the effects of biochar based fertilizer on the nutrient content of acidic soil and corn yield in Heilongjiang province were studied. The random block design was adopted, and seven treatments were set with four repetitions. The results showed that biochar based fertilizer increased the soil organic matter content in the mature stage of maize. The S1 (The biochar biobased fertilizer treatment 1 in acid soil), S2 (The biochar biobased fertilizer treatment 2 in acid soil), and S3 (The biochar biobased fertilizer treatment 3 in acid soil) treatments organic matter contents increased by 15.96%, 11.06% and 10.03% than SCK (The Acid Soil Control Check) respectively. The total nitrogen, total phosphorus, total potassium, total calcium of S1 treatment corn plants increased 16.81%, 15.34%, 31.20% and 22.96% than SCK. The S1 treatment increased the yield of corn, which was 1.94% higher than SCK. There was no significant difference between the yield of S2, S3 with SCK treatments, which achieved the effect of fertilization reducing.展开更多
The high-quality development of rural finance is an important support for rural revitalization.In recent years,it continuously expands the investment in rural finance in Heilongjiang Province,and optimizes the rural f...The high-quality development of rural finance is an important support for rural revitalization.In recent years,it continuously expands the investment in rural finance in Heilongjiang Province,and optimizes the rural financial service system and mechanism.The overall income level and living conditions of rural residents have been significantly improved,but there still exists income gap between urban and rural residents.Therefore,based on analyzing and combing current situation and problems of rural financial development and urban-rural income gap in Heilongjiang Province,multiple linear regression model is used to study the impact of rural financial development on the income gap between urban and rural residents in Heilongjiang Province.The research results show that the scale of rural financial development in Heilongjiang Province will enlarge the income gap between urban and rural residents,while rural financial development efficiency and urbanization level reduce income gap between urban and rural residents in Heilongjiang Province.Based on the above conclusions,some policy suggestions to promote the equalization of urban and rural income in Heilongjiang Province are puts forward in this paper.展开更多
With the continuous progress of agricultural technology, agricultural mechanization presents a good development trend after half a century development. But agricultural machinery equipment and the level of agricultura...With the continuous progress of agricultural technology, agricultural mechanization presents a good development trend after half a century development. But agricultural machinery equipment and the level of agricultural mechanization are imbalances in different regions</span><span style="font-family:Verdana;">;</span><span style="font-family:Verdana;"> the structure of agricultural machinery equipment is unreasonable</span><span style="font-family:Verdana;">;</span><span style="font-family:Verdana;"> there are great differences in agricultural mechanization level of different operations and different crops and the whole level of agricultural mechanization social service is not high. Through cross regional allocation of existing agricultural machinery</span><span style="font-family:Verdana;"> to</span><span style="font-family:Verdana;"> improve the working efficiency of agricultural machinery;we can extend the operation time of the agricultural machinery and improve the operation effect and income of agricultural machinery.展开更多
In order to determine the best sowing date of the main cultivar Yumi 2 of Shaanxi Province in western Heilongjiang Province,taking Yumi 2 as experimental materials,five sowing periods were set: May 8( B1),May 18( B2),...In order to determine the best sowing date of the main cultivar Yumi 2 of Shaanxi Province in western Heilongjiang Province,taking Yumi 2 as experimental materials,five sowing periods were set: May 8( B1),May 18( B2),May 28( B3),June 7( B4),and June 17( B5),and field experiment was carried out in Heping Pasture of Suihua Administration Bureau in Heilongjiang Province. The plant height,main panicle length,main stem node number,grain number per panicle,1000-grain weight,and yield of Yumi 2 were compared under different treatments. The results showed that the treatments of B1,B2 and B3 were higher than those of B4 and B5 in the plant height,main panicle length,main stem node number,grain number per panicle and 1000-grain weight. The yield of B1 was the highest in five treatments,and the yield was higher than that of B2,B3,B4 and B5 for 7. 41%,8. 33%,28. 70%,and 19. 44% respectively. Based on the above traits,it is concluded that the appropriate sowing date of Yumi 2 is May 8 in the arid area of western Heilongjiang Province so as to get higher yield.展开更多
The 19th CPC National Congress put forward the strategy of rural revitalization.The realization of rural revitalization requires a large amount of new professional farmers,however,Heilongjiang is facing the increasing...The 19th CPC National Congress put forward the strategy of rural revitalization.The realization of rural revitalization requires a large amount of new professional farmers,however,Heilongjiang is facing the increasingly serious status quo of agricultural marginalization,rural hollowing and farmers aging.Based on the current situation analysis of the new professional farmers’cultivation in Heilongjiang,this paper points out several typical problems including farmers endogenous negative,the shortage of trained teachers and institutions,imperfect cultivating system,and insufficient financial support.In view of these problems,corresponding suggestions are proposed after.展开更多
It has been reported that fresh edible rice has more bioactive compounds and its protein is easier to digest and has lower hypoallergenic than mature rice. In this paper, the changes in structure and functional proper...It has been reported that fresh edible rice has more bioactive compounds and its protein is easier to digest and has lower hypoallergenic than mature rice. In this paper, the changes in structure and functional properties of proteins at five different stages, including early milky stage(EMS), middle milky stage(MMS), late milky stage(LMS), waxy ripe stage(WS)and ripening stage(RS), during the seed development were investigated. It was found that with the seed developing, the molecular weight of fresh rice protein gradually become larger while the secondary structure changed from the highest content of disordered structure at MMS to the highest content of ordered structure at RS, which affect the surface hydrophobicity and then the functional properties of proteins, including foaming properties, emulsifying properties and oil holding capacity. Fresh rice protein at MMS has the strongest surface hydrophobicity while fresh edible rice protein at RS has the strongest oil holding capability. The results of our study can provide a theoretical basis for the application of fresh rice protein in the food industry and help to develop new fresh edible rice food.展开更多
Flesh firmness(FF) is an important and complex trait for melon breeders and consumers. However, the genetic mechanism underlying FF is unclear. Here, a soft fruit melon(P5) and a hard fruit melon(P10) were crossed to ...Flesh firmness(FF) is an important and complex trait for melon breeders and consumers. However, the genetic mechanism underlying FF is unclear. Here, a soft fruit melon(P5) and a hard fruit melon(P10) were crossed to generate F2, and the FF and fruit-related traits were recorded for two years. By performing quantitative trait locus(QTL) specificlocus amplified fragment(SLAF)(QTL-SLAF) sequencing and molecular marker-linkage analysis, 112 844 SLAF markers were identified, and 5 919 SNPs were used to construct a genetic linkage map with a total genetic distance of1 356.49 cM. Ten FF-and fruit-related QTLs were identified. Consistent QTLs were detected for fruit length(FL) and fruit diameter(FD) in both years, and QTLs for single fruit weight(SFW) were detected on two separate chromosomes in both years. For FF, the consistent major locus(ff2.1) was located in a 0.17-Mb candidate region on chromosome 2. Using 429 F2individuals derived from a cross between P5 and P10, we refined the ff2.1 locus to a 28.3-kb region harboring three functional genes. These results provide not only a new candidate QTL for melon FF breeding but also a theoretical foundation for research on the mechanism underlying melon gene function.展开更多
Marine collagen peptides(MCPs)are natural products prepared by hydrolyzing marine collagen protein through a variety of chemical methods or enzymes.MCPs have a range of structures and biological activities and are wid...Marine collagen peptides(MCPs)are natural products prepared by hydrolyzing marine collagen protein through a variety of chemical methods or enzymes.MCPs have a range of structures and biological activities and are widely present in marine species.MCPs also have a small molecular weight,are easily modified,and absorbed by the body.These properties have attracted great interest from researchers studying antioxidant,anti-tumor,and anti-aging activities.MCPs of specific molecular weights have significant anti-tumor activity and no toxic side effects.Thus,MCPs have the potential use as anti-cancer adjuvant drugs.Free radicals produced by oxidation are closely related to human aging,cancer,arteriosclerosis,and other diseases,but their relationship with cancer is not well known.In this review,we focus on the antioxidant properties of MCPs in the treatment of cancer,highlighting their antioxidant molecular structure and potential for clinical practice.展开更多
Schisandrin B(Sch B)is a monomer with anti-cancer and anti-inflammatory effects,which are isolated from the plant Schisandra chinensis(Turcz)Baillon.We investigated the anti-gastric cancer(GC)effects of Sch B and its ...Schisandrin B(Sch B)is a monomer with anti-cancer and anti-inflammatory effects,which are isolated from the plant Schisandra chinensis(Turcz)Baillon.We investigated the anti-gastric cancer(GC)effects of Sch B and its underlying molecular mechanisms.The Cell Counting Kit-8 assay was used to determine the effects of Sch B on the viability of GC and normal cell lines.Hoechst/propidium iodide staining and flow cytometry were used to assess the apoptosis induction of Sch B.Western blotting was used to evaluate the effects of Sch B on downstream apoptotic proteins.The DCFH-DA fluorescent probe was used to assess the regulatory effects of Sch B on reactive oxygen species(ROS)levels and related signaling pathways in GC cells.The results showed that Sch B could regulate the phosphorylation level of mitogen-activated protein kinase(MAPK)by upregulating ROS accumulation in gastric cancer cells,and then reduce the expression of nuclear factor kappa B(NF-κB)and phosphorylated transcription 3(p-STAT3).In addition,Sch B downregulated the cell cycle proteins cyclin-dependent kinase 2/4/6 and cyclin D1/E,and arrested cells in the G0/G1 phase.Moreover,it also inhibited cell migration,which was reversed with Nacetylcysteine pretreatment.In summary,Sch B has killing effects on GC cells by upregulating the production of intracellular ROS and regulating the MAPK/STAT3/NF-κB signaling pathway,leading to the migration arrest and apoptosis of GC cells.展开更多
In recent years,with the continuous development of the medicinal value of valepotriate and the great attention of scholars.The traditional extraction and purification process can no longer meet the current market stan...In recent years,with the continuous development of the medicinal value of valepotriate and the great attention of scholars.The traditional extraction and purification process can no longer meet the current market standards and needs.The modern technology of valepotriate is of great significance to its application and development.This paper reviews the extraction and purification process,molding process and pharmacological activity of valepotriate,providing a theoretical basis for the research and application of valepotriate.展开更多
Osthole has various pharmacological effects such as anti-cancer,anti-inflammation,prevention and treatment of cardiovascular diseases and neuroprotection.This paper reviews the advances in the research of the pharmaco...Osthole has various pharmacological effects such as anti-cancer,anti-inflammation,prevention and treatment of cardiovascular diseases and neuroprotection.This paper reviews the advances in the research of the pharmacological effects and molecular mechanisms of osthole,in order to provide new ideas for further research and clinical application of osthole.展开更多
Lithospermoside is a kind of alkaloid compound existing in Semiaquilegia adoxoides,with anticancer,anti-inflammatory,antibacterial,hypoglycemic,antioxidant and other pharmacological effects.This paper reviews the phar...Lithospermoside is a kind of alkaloid compound existing in Semiaquilegia adoxoides,with anticancer,anti-inflammatory,antibacterial,hypoglycemic,antioxidant and other pharmacological effects.This paper reviews the pharmacological action and molecular mechanism of lithospermoside,in order to provide a theoretical basis for clinical application of lithospermoside.展开更多
Arctigenin has a variety of pharmacological effects,such as anti-inflammatory,anti-tumor,antiviral and hypoglycemic.In this paper,the pharmacological effects and mechanisms of arctigenin were reviewed,in order to prov...Arctigenin has a variety of pharmacological effects,such as anti-inflammatory,anti-tumor,antiviral and hypoglycemic.In this paper,the pharmacological effects and mechanisms of arctigenin were reviewed,in order to provide a theoretical basis for further research and development of arctigenin.展开更多
文摘Taking Heilongjiang Bayi Agricultural University as an example, the discipline service practice was explored from the aspects such as free network resources and tool use, subject navigation, subject librarians, information sharing space and information literacy education. The typical cases were provided;the optimization of utilization method of network resources was put forward;the subject theme navigation was developed;and the information sharing space of specific discipline and other working strategies were carried out. The experience and enlightenment of active service for subject construction, priority service for key subjects, subject service by lay and step and seizing of the opportunity of subject service were summarized, which developed ideas and provided reference to the establishment of deep subject services of general libraries of colleges and universities.
文摘31 investigated higher agricultural college libraries all provide the reference consulting service. The service mode includes asynchronous reference consulting, synchronous reference consulting, synchronous and asynchronous reference consulting, joint reference consulting service and traditional reference consulting service. Service items include interlibrary borrowing and document delivery, reader training, special database, resource navigation and so on. But there are some problems to be solved.
基金supported by grants from the National Natural Science Foundation of China(U20A2025,32101672,31971826)the National Key Research and Development Plan of China(2021YFF1001100)+2 种基金Natural Science Foundation of Heilongjiang province(YQ2023C035)Double First-class Innovation Achievement Program of Heilongjiang Province(LJGXCG2023-072)the Graduate Student Scientific Research Innovation Projects of Heilongjiang Bayi Agricultural University(YJSCX2022-Z01)。
文摘Low temperature causes rice yield losses of up to 30%–40%,therefore increasing its cold tolerance is a breeding target.Few genes in rice are reported to confer cold tolerance at both the vegetative and reproductive stages.This study revealed a rice-specific 24-nt miRNA,miR1868,whose accumulation was suppressed by cold stress.Knockdown of MIR1868 increased seedling survival,pollen fertility,seed setting,and grain yield under cold stress,whereas its overexpression conferred the opposite phenotype.Knockdown of MIR1868 increased reactive oxygen species(ROS)scavenging and soluble sugar content under cold stress by increasing the expression of peroxidase genes and sugar metabolism genes,and its overexpression produced the opposite effect.Thus,MIR1868 negatively regulated rice cold tolerance via ROS scavenging and sugar accumulation.
基金Supported by Innovation and Entrepreneurship Project for College Students in Heilongjiang Province(S202210223119)the Central Fund Support for the Talent Training Project of Local University Reform and Development(2020GSP16).
文摘Atractylodis Rhizoma comes from the dry rhizome of Atractylis lancea or Atractylodes chinensis in the Compositae family,and it is suitable for preventing and treating diseases such as cold,edema,night blindness and rheumatic arthralgia.Atractylodin is the main active component extracted and isolated from Atractylodis Rhizoma.A large number of studies have found that atractylodin has excellent drug activity in improving gastrointestinal emptying,anti-inflammation,inhibiting malignant tumor and reducing blood lipid.In this paper,the purification process and pharmacological activity of Atractylodin were summarized to provide a theoretical basis for basic research,clinical application and further development and utilization of atractylodin.
基金Supported by Central Talent Training Project for the Reform and Development of Local Colleges and Universities(2020GSP16)Guidance Project of Key R&D Plan in Heilongjiang Province(GZ20220039)Innovation and Entrepreneurship Training Program for College Students in Heilongjiang Province(202310223173).
文摘In this paper,the pharmacological effects and molecular mechanisms of sarsasapogenin,such as anti-oxidant,anti-inflammatory and anti-diabetic effects,are reviewed in order to provide a theoretical basis for the subsequent development and clinical application of sarsasapogenin.
文摘To objectively reflect the relevant situation of researches on think tank service of Chinese university libraries, this paper uses CNKI Database as the retrieval source, the bibliometric analysis method, and CiteSpace, a citation network analysis tool, to make quantitative analysis on the literature data of researches on the think tank service of university libraries;draw the knowledge map of literature authors, organization distribution, keyword co-occurrence, research hotspot distribution, etc.;objectively and comprehensively analyzes the hot topics and cutting-edge trends of researches on the think tank service of libraries, the research includes the following aspects: First, the status quo and orientation of the existing university library think tanks in China;second, it is recommended to carry out research on policy support and system guarantee for university library think tank services;third, integrate big data technology is merged into the construction of university libraries think tanks;fourth, the transformation of library and information institutions to new types of think tanks, including the transformation of knowledge services, disciplinary services, and characteristic think tanks, in order to provide reference for researches and practical work of think tank service of libraries in China.
文摘Through the analysis of the operation of China’s agricultural science technological and development process, the paper summed up the basic experience of agricultural science technological park and operation mode, in order to run at all levels of agricultural science technological park of science and regional some beneficial references for the development of agricultural economy.
文摘Unreasonable fertilizer input and low fertilizer utilization seriously restrict the development of maize in Heilongjiang province. In this paper, the effects of biochar based fertilizer on the nutrient content of acidic soil and corn yield in Heilongjiang province were studied. The random block design was adopted, and seven treatments were set with four repetitions. The results showed that biochar based fertilizer increased the soil organic matter content in the mature stage of maize. The S1 (The biochar biobased fertilizer treatment 1 in acid soil), S2 (The biochar biobased fertilizer treatment 2 in acid soil), and S3 (The biochar biobased fertilizer treatment 3 in acid soil) treatments organic matter contents increased by 15.96%, 11.06% and 10.03% than SCK (The Acid Soil Control Check) respectively. The total nitrogen, total phosphorus, total potassium, total calcium of S1 treatment corn plants increased 16.81%, 15.34%, 31.20% and 22.96% than SCK. The S1 treatment increased the yield of corn, which was 1.94% higher than SCK. There was no significant difference between the yield of S2, S3 with SCK treatments, which achieved the effect of fertilization reducing.
基金Supported by General Project of Philosophy and Social Sciences in Heilongjiang Province(18JYB153)Joint Guiding Project of Natural Science Foundation in Heilongjiang Province(LH2019G019).
文摘The high-quality development of rural finance is an important support for rural revitalization.In recent years,it continuously expands the investment in rural finance in Heilongjiang Province,and optimizes the rural financial service system and mechanism.The overall income level and living conditions of rural residents have been significantly improved,but there still exists income gap between urban and rural residents.Therefore,based on analyzing and combing current situation and problems of rural financial development and urban-rural income gap in Heilongjiang Province,multiple linear regression model is used to study the impact of rural financial development on the income gap between urban and rural residents in Heilongjiang Province.The research results show that the scale of rural financial development in Heilongjiang Province will enlarge the income gap between urban and rural residents,while rural financial development efficiency and urbanization level reduce income gap between urban and rural residents in Heilongjiang Province.Based on the above conclusions,some policy suggestions to promote the equalization of urban and rural income in Heilongjiang Province are puts forward in this paper.
文摘With the continuous progress of agricultural technology, agricultural mechanization presents a good development trend after half a century development. But agricultural machinery equipment and the level of agricultural mechanization are imbalances in different regions</span><span style="font-family:Verdana;">;</span><span style="font-family:Verdana;"> the structure of agricultural machinery equipment is unreasonable</span><span style="font-family:Verdana;">;</span><span style="font-family:Verdana;"> there are great differences in agricultural mechanization level of different operations and different crops and the whole level of agricultural mechanization social service is not high. Through cross regional allocation of existing agricultural machinery</span><span style="font-family:Verdana;"> to</span><span style="font-family:Verdana;"> improve the working efficiency of agricultural machinery;we can extend the operation time of the agricultural machinery and improve the operation effect and income of agricultural machinery.
基金Supported by the National Key Technologies R&D Program of China during th12th Five-Year Plan Period(2014BAD07B03)Postdoctoral Science Founda tion Project of Heilongjiang Province(LBH-Z14177)+1 种基金Scientific Research Starting Project for College Introducing Talents(XYB2014-08)National Uni versity Student Innovation Program(XC2016004)
文摘In order to determine the best sowing date of the main cultivar Yumi 2 of Shaanxi Province in western Heilongjiang Province,taking Yumi 2 as experimental materials,five sowing periods were set: May 8( B1),May 18( B2),May 28( B3),June 7( B4),and June 17( B5),and field experiment was carried out in Heping Pasture of Suihua Administration Bureau in Heilongjiang Province. The plant height,main panicle length,main stem node number,grain number per panicle,1000-grain weight,and yield of Yumi 2 were compared under different treatments. The results showed that the treatments of B1,B2 and B3 were higher than those of B4 and B5 in the plant height,main panicle length,main stem node number,grain number per panicle and 1000-grain weight. The yield of B1 was the highest in five treatments,and the yield was higher than that of B2,B3,B4 and B5 for 7. 41%,8. 33%,28. 70%,and 19. 44% respectively. Based on the above traits,it is concluded that the appropriate sowing date of Yumi 2 is May 8 in the arid area of western Heilongjiang Province so as to get higher yield.
基金This study is supported by Heilongjiang Bayi Agricultural University(No:RRCPY201904)and Department of Agriculture and Rural Areas of Heilongjiang.
文摘The 19th CPC National Congress put forward the strategy of rural revitalization.The realization of rural revitalization requires a large amount of new professional farmers,however,Heilongjiang is facing the increasingly serious status quo of agricultural marginalization,rural hollowing and farmers aging.Based on the current situation analysis of the new professional farmers’cultivation in Heilongjiang,this paper points out several typical problems including farmers endogenous negative,the shortage of trained teachers and institutions,imperfect cultivating system,and insufficient financial support.In view of these problems,corresponding suggestions are proposed after.
基金the financial support from the Postdoctoral Research Project of Heilongjiang Provincial Department of Human Resources and Social Security (LBH-Q21156)Heilongjiang BaYi Agricultural University Support Program for San Zong San Heng (ZDZX202104)+3 种基金Science Foundation Project of Heilongjiang Province (QC2015028)National Natural Science Foundation of China (32072258)Major Science and technology Program of Heilongjiang (2019ZX08B02,2020ZX08B02)Central financial support for the development of local colleges and universities,Graduate research and innovation project of Harbin University of Commerce (YJSCX2020636HSD)。
文摘It has been reported that fresh edible rice has more bioactive compounds and its protein is easier to digest and has lower hypoallergenic than mature rice. In this paper, the changes in structure and functional properties of proteins at five different stages, including early milky stage(EMS), middle milky stage(MMS), late milky stage(LMS), waxy ripe stage(WS)and ripening stage(RS), during the seed development were investigated. It was found that with the seed developing, the molecular weight of fresh rice protein gradually become larger while the secondary structure changed from the highest content of disordered structure at MMS to the highest content of ordered structure at RS, which affect the surface hydrophobicity and then the functional properties of proteins, including foaming properties, emulsifying properties and oil holding capacity. Fresh rice protein at MMS has the strongest surface hydrophobicity while fresh edible rice protein at RS has the strongest oil holding capability. The results of our study can provide a theoretical basis for the application of fresh rice protein in the food industry and help to develop new fresh edible rice food.
基金supported by the grants from the National Natural Science Foundation of China (31772330 and 32002043)the Natural Science Foundation of the Heilongjiang Province, China (LH2022C065)the Heilongjiang Bayi Agricultural University Support Program for SanHengSanZong, China (TDJH202004)。
文摘Flesh firmness(FF) is an important and complex trait for melon breeders and consumers. However, the genetic mechanism underlying FF is unclear. Here, a soft fruit melon(P5) and a hard fruit melon(P10) were crossed to generate F2, and the FF and fruit-related traits were recorded for two years. By performing quantitative trait locus(QTL) specificlocus amplified fragment(SLAF)(QTL-SLAF) sequencing and molecular marker-linkage analysis, 112 844 SLAF markers were identified, and 5 919 SNPs were used to construct a genetic linkage map with a total genetic distance of1 356.49 cM. Ten FF-and fruit-related QTLs were identified. Consistent QTLs were detected for fruit length(FL) and fruit diameter(FD) in both years, and QTLs for single fruit weight(SFW) were detected on two separate chromosomes in both years. For FF, the consistent major locus(ff2.1) was located in a 0.17-Mb candidate region on chromosome 2. Using 429 F2individuals derived from a cross between P5 and P10, we refined the ff2.1 locus to a 28.3-kb region harboring three functional genes. These results provide not only a new candidate QTL for melon FF breeding but also a theoretical foundation for research on the mechanism underlying melon gene function.
基金supported by the Central Government Supports Local College Reform and Development Fund Talent Training Projects[Grant Number 2020GSP16]the Heilongjiang Touyan Innovation Team Program[Grant Number 2019HTY078].
文摘Marine collagen peptides(MCPs)are natural products prepared by hydrolyzing marine collagen protein through a variety of chemical methods or enzymes.MCPs have a range of structures and biological activities and are widely present in marine species.MCPs also have a small molecular weight,are easily modified,and absorbed by the body.These properties have attracted great interest from researchers studying antioxidant,anti-tumor,and anti-aging activities.MCPs of specific molecular weights have significant anti-tumor activity and no toxic side effects.Thus,MCPs have the potential use as anti-cancer adjuvant drugs.Free radicals produced by oxidation are closely related to human aging,cancer,arteriosclerosis,and other diseases,but their relationship with cancer is not well known.In this review,we focus on the antioxidant properties of MCPs in the treatment of cancer,highlighting their antioxidant molecular structure and potential for clinical practice.
基金This work was supported by the National Natural Science Foundation of China[Grant No.82060118]the Research Program of Science and Technology at Universities of Inner Mongolia Autonomous Region[Grant No.NJZY20203]+3 种基金the Program for Young Talents of Chifeng University[Grant No.CFXYYT2202]the Central Government Supports Local College Reform and Development Fund Talent Training Projects[Grant No.2020GSP16]the Heilongjiang Touyan Innovation Team Program[Grant No.2019HTY078]the Project for Heilongjiang Bayi Agricultural University[Grant No.XDB202012].
文摘Schisandrin B(Sch B)is a monomer with anti-cancer and anti-inflammatory effects,which are isolated from the plant Schisandra chinensis(Turcz)Baillon.We investigated the anti-gastric cancer(GC)effects of Sch B and its underlying molecular mechanisms.The Cell Counting Kit-8 assay was used to determine the effects of Sch B on the viability of GC and normal cell lines.Hoechst/propidium iodide staining and flow cytometry were used to assess the apoptosis induction of Sch B.Western blotting was used to evaluate the effects of Sch B on downstream apoptotic proteins.The DCFH-DA fluorescent probe was used to assess the regulatory effects of Sch B on reactive oxygen species(ROS)levels and related signaling pathways in GC cells.The results showed that Sch B could regulate the phosphorylation level of mitogen-activated protein kinase(MAPK)by upregulating ROS accumulation in gastric cancer cells,and then reduce the expression of nuclear factor kappa B(NF-κB)and phosphorylated transcription 3(p-STAT3).In addition,Sch B downregulated the cell cycle proteins cyclin-dependent kinase 2/4/6 and cyclin D1/E,and arrested cells in the G0/G1 phase.Moreover,it also inhibited cell migration,which was reversed with Nacetylcysteine pretreatment.In summary,Sch B has killing effects on GC cells by upregulating the production of intracellular ROS and regulating the MAPK/STAT3/NF-κB signaling pathway,leading to the migration arrest and apoptosis of GC cells.
基金Supported by the Central Government Supporting Local College Reform and Development Fund Talent Training Projects(2020GSP16).
文摘In recent years,with the continuous development of the medicinal value of valepotriate and the great attention of scholars.The traditional extraction and purification process can no longer meet the current market standards and needs.The modern technology of valepotriate is of great significance to its application and development.This paper reviews the extraction and purification process,molding process and pharmacological activity of valepotriate,providing a theoretical basis for the research and application of valepotriate.
基金Supported by the Talent Training Program for the Reform and Development of Local Colleges and University of the Central Government(2020GSP16)Postgraduate Innovative Research Project of Heilongjiang Bayi Agricultural University(YJSCX2022-Y59)。
文摘Osthole has various pharmacological effects such as anti-cancer,anti-inflammation,prevention and treatment of cardiovascular diseases and neuroprotection.This paper reviews the advances in the research of the pharmacological effects and molecular mechanisms of osthole,in order to provide new ideas for further research and clinical application of osthole.
基金Supported by Central Government Supports Local College Reform and Development Fund Talent Training Projects(2020GSP16)Heilongjiang Provincial Key Research and Development Plan Guidance Project(GZ20220039)Postgraduate Innovative Research Project of Heilongjiang Bayi Agricultural University(YJSCX2022-Y55).
文摘Lithospermoside is a kind of alkaloid compound existing in Semiaquilegia adoxoides,with anticancer,anti-inflammatory,antibacterial,hypoglycemic,antioxidant and other pharmacological effects.This paper reviews the pharmacological action and molecular mechanism of lithospermoside,in order to provide a theoretical basis for clinical application of lithospermoside.
基金Supported by the Talent Training Program for the Reform and Development of Local Colleges and University of the Central Government(2020GSP16)。
文摘Arctigenin has a variety of pharmacological effects,such as anti-inflammatory,anti-tumor,antiviral and hypoglycemic.In this paper,the pharmacological effects and mechanisms of arctigenin were reviewed,in order to provide a theoretical basis for further research and development of arctigenin.