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The sex peptide receptor in the Asian gypsy moth,Lymantria dispar,is involved in development and stress resistance

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Journal of Integrative Agriculture 2021年第11期20卷 2976-2985页

作者： DU Hui SUN Li-li LIU Peng CAO Chuan-wang Key Laboratory of Sustainable Forest Ecosystem Management of Ministry of Education School of ForestryNortheast Forestry UniversityHarbin 150040P.R.Chin

The G protein-coupled receptor(GPCR)regulates downstream genes by binding to a heterotrimeric G ***,the function of sex peptide receptor(SPR)in lepidopteran species is mostly *** the physiological functions of SPR in insects is essential for exploring new insecticidal *** the present study,the functions of an SPR in Lymantria dispar(Asian gypsy moth;LdSPR)were *** expression of LdSPR was the highest in the 6 th instar larval stage,and there was a large difference in expression between male and female *** LdSPR gene silencing,*** larvae showed increased sensitivity to high temperature,starvation,and oxidative stress,indicating that LdSPR enhances stress *** results enrich our knowledge of the function of the insect SPRs,which will lead to a better understanding of other insect GPCR family members and the identification of new targets for the development of environmentally friendly pesticides.

关键词： Lymantria dispar sex peptide receptor RNAi physiological function stress resistance

Constituent and effects of polysaccharides isolated from Sophora moorcroftiana seeds on lifespan,reproduction,stress resistance,and antimicrobial capacity in Caenorhabditis elegans

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Chinese Journal of Natural Medicines 2018年第4期16卷 252-260页

作者： ZHANG Yuan MI Dan-Yang WANG Jin LUO Yan-Ping YANG Xu DONG Shi MA Xing-Ming DONG Kai-Zhong Department oflmmunology School of Basic Medical SciencesLanzhou UniversityLanzhou 730000China Key Lab of Preclinical Study for New Drugs of Gansu Province Lanzhou 730000China Department of Microbiology Medical CollegeNorthwest University for NationalitiesLanzhou 730000China

Sophora moorcroftiana(S. moorcroftiana) is an endemic leguminous dwarf shrub in Tibet, China. Decoctions of the seeds have been used in Chinese folk medicine for dephlogistication, detoxication, and infectious diseases. The present study aimed to investigate the constituent and biological effects of polysaccharides from S. moorcroftiana seeds in Caenorhabditis elegans(C. elegans). Polysaccharides from S. moorcroftiana seeds(SMpol) were extracted with 60% ethanol and constituent was analyzed by GC-MS. SMpol was composed of glucose, galactose and inositol in the molar ratio of 35.7 : 1.3 : 17.0. Synchronized worms were treated with SMpol and then lifespan, motility, reproduction, stress resistance and antimicrobial activity were examined. Compared with the control group, the lifespan was increased to the average of 27.3 days and the number of laying eggs showed a 1.3-fold increase in nematodes treated with SMpol(4 mg×mL^(–1)). In SMpol(4 mg×mL^(–1)) treated worms, there was a 1.1-fold increase in 24-h survival of acute heat stress and a 1.6-fold increase in 2-h survival of oxidative stress The colonization of the bacteria in the SMpol treated nematode was significantly lower than that of the untreated group by 68.3%. In vivo studies showed SMpol significantly extended the life span, improved reproduction, increased stress resistance and antimicrobial capacity of C. elegans. In conclusion, those results indicated that the polysaccharides from S. moorcroftiana seeds were involved in a variety of biological activities leading to its modulatory effects on C. elegans which may be developed as a natural supplement agent.

关键词： Sophora moorcroftiana Polysaccharide Caenorhabditis elegans Anti-infection Reproduction stress resistance

Beyond dueling: roles of the type VI secretion system in microbiome modulation, pathogenesis and stress resistance

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stress Biology 2021年第1期1卷 132-143页

作者： Jinshui Lin Lei Xu Jianshe Yang Zhuo Wang Xihui Shen Shaanxi Key Laboratory of Chinese Jujube College of Life SciencesYan’an UniversityYan’anShaanxi 716000People’s Republic of China State Key Laboratory of Crop stress Biology for Arid Areas Shaanxi Key Laboratory of Agricultural and Environmental MicrobiologyCollege of Life SciencesNorthwest A&F UniversityYanglingShaanxi 712100People’s Republic ofChina.

Bacteria inhabit diverse and dynamic environments,where nutrients may be limited and toxic chemicals can be *** adapt to these stressful conditions,bacteria have evolved specialized protein secretion systems,such as the type VI secretion system(T6SS)to facilitate their *** a molecular syringe,the T6SS expels various effectors into neighboring bacterial cells,eukaryotic cells,or the extracellular *** effectors improve the competitive fitness and environmental adaption of bacterial *** primarily recognized as antibacterial weapons,recent studies have demonstrated that T6SSs have functions beyond interspecies ***,we summarize recent research on the role of T6SSs in microbiome modulation,pathogenesis,and stress resistance.

关键词： Type VI secretion system Competition Microbiome Pathogenesis stress resistance Biofilm

Immune response,stress resistance and bacterial challenge in juvenile rainbow trouts Oncorhynchus mykiss fed diets containing chitosan-oligosaccharides

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Current Zoology 2009年第6期55卷 416-422页

作者： Lin LUO Xuefeng CAI Chuan HE Min XUE Xiufeng WU Haining CAO Beijing Fisheries Research Institute Beijing 100068 China Hibio Group Xi＇an Shaanxi Province 710068 China Extension Station of Aquieulture Technology Beijing Municipal Bureau of Agriculture Beijing 100068 China Feed Research Institute Chinese Academy of Agricultural Sciences Beijing 100081 China

Effects of dietary supplementation of chitosan-oligosaccharides （COS） on the growth performance, immune response, stress resistance, and disease resistance of juvenile rainbow trout Oncorhynchus mykiss were studied. Four experimental diets containing 0, 20, 40, or 60 mg/kg COS （COSO, COS20, COS40, and COS60, respectively） were fed to juvenile rainbow trout （initial weight = 5.2 ± 0.3 g） for 8 weeks. By the end of the feeding trial, representative groups of fish from each dietary treatment were challenged with stressor （30 see air exposure） and pathogen exposure （intraperitoneal injection with Aeromonas hydrophila ）. Results showed that supplementation of COS in diets did not affect production performance and body composition of rainbow trout. However, fish fed the COS40 diet demonstrated improved phagocytic activities, respiratory burst activities and decreased serum cortisol level. Additionally, survival following A. hydrophila challenge was significant higher among fish fed the COS-supplemented feeds, although there was no difference based on the level of supplementation. The present study suggests that COS can be used as an immuno-stimulant in rainbow trout feeds

关键词： Chitosan-oligosaccharides Immuno-stimulant Immune response Rainbow trout stress resistance

Pancreatic Enzymes Activity under the Conditions of Acute stress and Melanin Administration Depending on the stress resistance

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Journal of Pharmacy and Pharmacology 2015年第5期3卷 232-236页

作者： Nataliya Slobodyanyk Tetyana Beregova Karine Neporada Ukrainian Medical StomatologicalAcademy Poltava 36000 Ukraine Taras Shevchenko National University of Kyiv Kyiv 02140 Ukraine

Total proteolytic, antitrypsic, amylase and lypolytic activity was studied on animals subjected to acute stress simulation. Acute stress results in the development of imbalance of protease inhibitors potential as well as in the increase of amylase and lipase activity in the pancreas of the rats. Prior melanin administration in acute stress leads to a decrease in the activity of amylase and lipase, and an increase of total activity of protease inhibitors, that demonstrates stress-protective melanin effect produced on the pancreas.

关键词： Pancreas stress resistance acute stress enzymes melanin.

Application of Molecular Marker Technologies in stress resistance Breeding of Rapeseed

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Asian Agricultural Research 2020年第7期12卷 36-40页

作者： Suping GUO Yuan YAN Ba DAN Key Laboratory of Plateau Crop Molecular Breeding Tibet Agricultural and Animal Husbandry College Linzhi 860000 China

Rapeseed is the largest source of China's edible vegetable oil and plays a pivotal role in China's edible oil *** global warming and frequent occurrence of various extreme climates,traditional hybrid breeding has been unable to meet the production requirements for rape yield and stress *** recent years,the rapid development and maturity of molecular marker technologies have opened up new ways for stress resistance breeding in *** article mainly discusses several types of molecular marker technologies commonly used in rapeseed breeding,such as RFLP,SSR,and SNP,the advantages of molecular marker technologies over conventional breeding and other genetic marker technologies,as well as the application of molecular marker technologies in rapeseed disease resistance,drought resistance,cold resistance and lodging resistance breeding,the current problems and development prospects in breeding.

关键词： Rapeseed Breeding stress resistance Molecular markers

Research Progress and Identification Method of Apple stress resistance

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Agricultural Science & Technology 2013年第10期14卷 1413-1416页

作者：王贵平王金政薛晓敏路超聂佩显山东省果树研究所山东泰安271000

In the research, changes of apple chemistry, and molecule, under stresses, are n terms of morphology, physiology, bio- illustrated and research and identifica- tion methods of apple resistance are explored involving drought-resistance, flood-re- sistance, salt-stress resistance, cold-hardiness and heat-resistance. In addition prospects of apple resistance research are proposed, as well.

关键词： Apple Adverse stress stress resistance Research progress Identifica- tion method

A new glucosyltransferase UGT78 from Iris sanguinea is a putative negative regulator in cadmium stress response

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Journal of Forestry Research 2024年第6期35卷 344-355页

作者： Gongfa Shi Guiling Liu Huijun Liu Lei Wang Aerdake Kuwantai Yu Du Ling Wang Xiaolei Xi Rusong Chai College of Landscape Architecture Northeast Forestry UniversityHarbin 150040People’s Republic of China Taiyuan Botanical Garden Taiyuan 030025People’s Republic of China Heilongjiang Forest Botanical Garden Harbin 150040People’s Republic of China

Urbanization has resulted in a significant degra-dation of soil quality,subjecting plants to persistent abiotic stressors such as heavy metal pollution,salinization,and ***-glycosyltransferases(UGTs)participate in protein glycosylation,secondary metabolite synthesis,and detoxification of exogenous toxic *** sanguinea Donn ex Hornem exhibits a high degree of resistance to various abiotic *** enhance the plant’s response to adversity,a novel glycosyltransferase belonging to the UGT78 family,encoding flavonoid 3-O-glucosyltransferase(UF3GT),was cloned from the monocot species *** with the control group,overexpression of IsUGT78 enhanced sensitivity to cadmium stress,while showing no significant impact under NaCl and d-sorbitol *** cadmium treatment,arabidopsis exoge-nously transformed with the IsUGT78 gene possessed lower germination,fresh weight,root length,and chlorophyll con-tent and increased malondialdehyde content than the wild type *** addition,metabolomics in leaves led to the identification of 299 flavonoid metabolites,eight and 127 which were significantly up-and down-regulated,respec-tively,in the transgenic *** note,all eight upregulated flavonoid compounds were *** that arabi-dopsis,which exogenously expresses the IsUGT78 gene,has reduced resistance to cadmium,IsUGT78 may lead to a reduced ability to cope with cadmium stress.

关键词： Iris sanguinea IsUGT78 stress resistance Cadmium Glucosyltransferase

Comparative studies of critical physiological limits and vulnerability to environmental extremes in small ectotherms:How much environmental control is needed?

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Integrative Zoology 2018年第4期13卷 355-371页

作者： Ary A.HOFFMANN Carla M.SGRÒ School of BioSciences Bio21 InstituteThe University of MelbourneMelbourneAustralia School of Biological Sciences Monash UniversityMelbourneAustralia

Researchers and practitioners are increasingly using comparative assessments of critical thermal and physiological limits to assess the relative vulnerability of ectothermic species to extreme thermal and aridity conditions occurring under climate *** most assessments of vulnerability,critical limits are compared across taxa exposed to different environmental and developmental ***,many aspects of vulnerability should ideally be compared when species are exposed to the same environmental conditions,allowing a partitioning of sources of variation such as used in quantitative *** is particularly important when assessing the importance of different types of plasticity to critical limits,using phylogenetic analyses to test for evolutionary constraints,isolating genetic variants that contribute to limits,characterizing evolutionary interactions among traits limiting adaptive responses,and when assessing the role of cross generation ***,vulnerability assessments based on critical thermal/physiological limits also need to take place within a context that is relevant to field conditions,which is not easily provided under controlled environmental conditions where behavior,microhabitat,stress exposure rates and other factors will differ from field *** are ways of reconciling these requirements,such as by taking organisms from controlled environments and then testing their performance under field conditions(or vice versa).While comparisons under controlled environments are challenging for many taxa,assessments of critical thermal limits and vulnerability will always be incomplete unless environmental effects within and across generations are considered,and where the ecological relevance of assays measuring critical limits can be established.

关键词： comparative studies common garden critical limits ectotherms environmental control thermal limits stress resistance