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A novel U-Box E3 Ubiquitin Ligase gene GmPUB6 Stimulates the Expression by Multiple stresses and Plays a Negative Role in Drought stress tolerance in Transgenic Arabidopsis thaliana

A novel U-Box E3 Ubiquitin Ligase gene GmPUB6 Stimulates the...

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第十届全国大豆学术讨论会

作者： WANG Ning 李艳盖钧镒 Soybean Research Institute of Nanjing Agricultural University/Key Laboratory for Soybean Biology Genetics and BreedingMinistry of Agriculture/National Center for Soybean Improvement/National Key Laboratory for Crop Genetics and Germplasm Enhancement

The plant U-box(PUB) protein functions as an E3 ligase to poly-ubiquitinate a target protein for its degradation or post-translational *** play important roles in the regulation of gene expression and the subsequent control of a number of important biological processes,including those involved in the response to environmental ***,only some of them have been investigated for effects on disease reaction in cereal *** this study,we reported the identification and functional characterization of a soybean PUB gene(GmPUB6),which functions in the adaptive response to abiotic *** found that GmPUB6 was expressed differentially in various organs,such as roots,stems,leaves,flower and seed of ***,GmPUB6 transcript accumulation was highly induced by abscisic acid(ABA),jasmonate(JA),aluminum toxicity(Al),cold,hot,high salinity and polyethylene glycol(PEG) treatment in leaves and *** addition,GmPUB6 was mostly localized to peroxisome,and showed E3 ubiquitin ligase activity by in vitro ubiquitination *** further functional analysis,we used GmPUB6-overexpressing transgenic Arabidopsis plants to show that the GmPUB6 protein regulates the osmotic stress ***6-overexpressing transgenic Arabidopsis plants showed increased drought susceptibility,which was consistent with the survive ***,***6-overexpressing transgenic plants displayed hyposensitive to osmotic stress,and inhibited ABA-mediated stomatal ***,these results demonstrated that GmPUB6 plays a negative role in ABA and drought responses in Arabidopsis thaliana and could be a potent candidate gene for the genetic improvement of drought resistance in soybean.

关键词： Abiotic stress GmPUB6 U-BOX E3 ligases Soybean stress tolerance Transgenic Arabidopsis plants

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TOR kinase coordinates nutrient with hormone signaling to orchestrate plant growth,development and stress tolerance

TOR kinase coordinates nutrient with hormone signaling to or...

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2018全国植物生物学大会

作者： Zhongpeng Li Pengcheng Wang Liwen Fu Jian-Kang Zhu Yan Xiong Basic Forestry and Proteomics Research Center Haixia Institute of Science and TechnologyFujian Agriculture and Forestry University Shanghai Center for Plant stress Biology Chinese Academy of Science Center for Excellence in Molecular Plant SciencesChinese Academy of Sciences

Sessile plants need to adjust their growth/stress tolerance mode constantly depending on the intensely changing ***,energy and hormone signaling mechanisms constitute the most ancient and fundamental regulatory networks in all life *** growth/stress plasticity is activated and switched by nutrient and hormone signaling remains enigmatic in photosynthetic *** target of rapamycin(TOR)kinase is an evolutionarily conserved master regulator that integrates energy,nutrients,growth factors and stress signals to promote survival and growth in all *** previous work has revealed that TOR integrates both nutrient and growth hormone signals to tightly control cell proliferation in meristems to stimulate plant *** can sense metabolic sugar signal and auxin level to modulate root and shoot meristem activation by phosphorylating cell cycle related E2 F transcription ***,we also found that plant stress hormone,ABA(Abscisic acid),strongly inhibited TOR kinase *** inhibition effect of ABA is dependent on the canonical ABA signaling ***2 s,the key downstream effector of ABA signaling,directly binds,phosphorylates Raptor(one of the components of TOR complex) to inhibit TOR kinase ***,our findings established a pivotal hub role of TOR signaling in integrating different environmental signals,nutrient status with plant growth and stress hormones to orchestrate plant growth and fitness.

关键词： glucose hormone target of rapamycin phosphorylation cell proliferation stress tolerance

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Wheat Zinc Finger Protein Gene TaCHP is Negatively Regulated by ABA and Salinity stress and Plays a Positive Role in stress tolerance

Wheat Zinc Finger Protein Gene TaCHP is Negatively Regulated...

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2010全国植物生物学研讨会

作者： Cuiling Li Jian Lv Xin Zhao Mengcheng Wang Shuangyi Zhao Guangmin Xia The Key Laboratory of Plant Cell Engineering and Germplasm Innovation Ministry of EducationSchool of Life Science Shandong University

The plant response to abiotic stresses involves both abscisic acid(ABA)-dependent and ABA-independent signalling *** we describe Ta CHP,a CHP-rich zinc finger protein family gene extracted from bread wheat,and which i... 详细信息

关键词： Triticum aestivum TaCHP stress tolerance ABA MYB15 DREBs

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Reactive oxygen species are involved in brassinosteroids-induced stress tolerance in Cucumis sativus

Reactive oxygen species are involved in brassinosteroids-ind...

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中国植物生理学会第十次会员代表大会暨全国学术年会

作者： TadaoA sami Department of Applied Biological Chemistry University of Tokyo

＜正＞Brassinosteroids （BRs） induce plant tolerance to a wide spectrum of stresses. To study how BR induces

关键词： Brassinosteroids stress tolerance Hydrogen peroxide

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Discussion Abiotic stress tolerance and Corresponding Strategies for Maize Breeding in Southwest Region of China

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Agricultural Science & Technology 2017年第11期18卷 2037-2044页

作者：汤玲袁亮杨华张亚勤周汝平赖军邱正高重庆市农业科学院玉米所重庆401329 重庆科光种苗有限公司重庆401329 重庆市人民医院重庆401329

Maize is an important food crop, as well as the irreplaceable feed and industrial materials, having huge market demand in China. Southwestern region of China is the third largest main maize producing zone, and the frequent occurrence of abiotic stress conditions such as drought, heat, cold, wet shaded stress have severely affected the development of maize production, causing low and unstable corn yields, severely restricting the maize industry development in the southwest of China. This paper preliminarily describes the maize resistance to abiotic stresses in southwestem region of China, putting forward the countermeasures and the key research direction in the practice of breeding in order to provide reference for the cultivation of new varieties with high yield and stress resistance, and improving the levels of maize stress resistance breeding in southwestern region of China.

关键词： Southwestern region of China Maize Drought Heat Wet shaded stress tolerance Breeding

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Ethanol Fermentation by High-stress-tolerance Aquatic Yeasts and Their Mutants

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Advances in Microbiology 2021年第11期11卷 616-629页

作者： Naoto Urano Masami Ishida Yuka Naito Rintaro Endo Toshinori Takei Masachika Takashio Masahiko Okai Laboratory of Marine Biochemistry Department of Ocean Sciences Tokyo University of Marine Science and Technology Tokyo Japan Zensho Laboratories of Food Technology Zensho Holdings Co. Ltd. Tokyo Japan

Bioethanol is thought to be a renewable source of energy, because the biomasses used to make ethanol, such as sugar cane and its residual substance, molasses, are resources that can be continuously produced. But the practical use of ethanol to replace fossil fuels or atomic energy has been limited, because the production efficiencies of ethanol in relation to its substrates are not so high. Thus, for industrial production of the bioethanol, yeast fermentation would ideally be carried out in biomasses containing more highly concentrated carbohydrates. However, the environmental stresses in highly concentrated cultures might weaken the yeast’s physiological activities. From various kinds of aquatic yeast with stress tolerance, Torulaspora derbrueckii F2-11 and Wicherhamomyces anomalus AN2-64 were selected as candidates for high-sugar-tolerance yeasts as they showed remarkable growth in the YPD + sorbitol (600 g/L) medium at 25°C for 120 hrs. When the amounts and kinds of sugar alcohols in the cells of the two strains were measured in cultures containing 20 g/L or 400 g/L of D-glucose, maltose, or sucrose, the main two sugar alcohols that accumulated as the sugar concentration increased were glycerol and arabitol. Mutation by ethyl methanesulfonate of the parent strains T. derbrueckii F2-11 and W. anomalus AN2-64 induced mutants F2-11M or AN2-64M, which showed higher sugar, heat, and ethanol tolerances than their respective parents. Ethanol productivities and sugar assimilation activities of the mutants were also higher than those of the parents in the 25% (v/v) molasses.

关键词： Ethanol Fermentation stress tolerance Aquatic Yeast Mutant Ethyl

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Overexpression of AmDUF1517 enhanced tolerance to salinity, drought, and cold stress in transgenic cotton

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Journal of Integrative Agriculture 2018年第10期17卷 2204-2214页

作者： HAO Yu-qiong LU Guo-qing WANG Li-hua WANG Chun-ling GUO Hui-ming LI Yi-fei CHENG Hong-mei Biotechnology Research Institute Chinese Academy of Agricultural Sciences

As abiotic stresses become more severe as a result of global climate changes, the growth and development of plants are restricted. In the development of agricultural crops with greater stress tolerance, AmDUF1517 had been isolated from the highly stress-tolerant shrub Ammopiptanthus mongolicus, and can significantly enhance stress tolerance when inserted in Arabidopsis thaliana. In this study, we inserted this gene into cotton to analyze its potential for conferring stress tolerance. Two independent transgenic cotton lines were used. Southern blot analyses indicated that AmDUF1517 was integrated into the cotton genome. Physiological analysis demonstrated that AmD UF1517-transgenic cotton had stronger resistance than the control when treated with salt, drought, and cold stresses. Further analysis showed that trans-AmD UF1517 cotton displayed significantly higher antioxidant enzyme（superoxide dismutase（SOD）, peroxidase（POD）, catalase（CAT）, and glutathione S-transferase（GST）） activity and less reactive oxygen species（ROS） accumulation, which suggests that overexpression of AmDUF1517 can improve cotton resistance to stress by maintaining ROS homeostasis, as well as by alleviating cell membrane injury. These results imply that AmDUF1517 is a candidate gene in improving cotton resistance to abiotic stress.

关键词： transgenic cotton stress tolerance AmDUF1517 Ammopiptanthus mongolicus reactive oxygen species

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Production of Transgenic Tall Fescue Plants with Enhanced stress tolerances by Agrobacterium tumefaciens-Mediated Transformation

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Agricultural Sciences in China 2006年第5期5卷 330-338页

作者： WU Guan-ting CHEN Jin-qing HU Zhang-hua LANG Chun-xiu CHEN Xiao-yun WANG Fu-lin JIN Wei XIA Ying-wu Institute of Virology and Biotechnology Zhejiang Academy of Agricultural Sciences Hangzhou 310021 P.R. China Institute of Nuclear-Agricultural Sciences Zhejiang University Hangzhou 310029 P.R. China

In order to improve stress tolerances of turf-type tall fescue （Festuca arundinacea Schreb.）, Agrobacterium tumefaciens strain EHA105 carrying plasmid pCMD containing stress tolerance-related CBF1 gene from Arabidopsis thaliana was used to transform mature seeds-derived embryogenic calli of four cultivars. A total of 112 transgenic plants were regenerated from 32 independent lines and verified by histochemical detection of GUS activity, PCR assay and Southern hybridization analysis. The transformation frequency ranged from 0.92 to 2.87% with apparent differences among the cultivars. stress tolerances of transgenic plants were enhanced, which was shown by the facts that transgenic plants had distinct growth superiority and significantly higher survival rate than non-transformed ones under high salinity and high osmosis stresses, and that relative electronic conductivity of in vitro leaves treated with low and high temoeratures, dehvdration and high salinity stresses was 25-30% lower in transgenic plants than in control *** addition,it was observed that growth of transgenic plants was inhibited due to constitutive overexpression of CBF1 gene under normal environmental conditions.

关键词： tall fescue (Festuca arundinacea Schreb.) Agrobacterium tumefaciens genetic transformation CBF1 gene stress tolerance

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OsDREB increases rice tolerance to draught,low temperature and salt stress

OsDREB increases rice tolerance to draught,low temperature a...

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从植物科学到农业发展——2012全国植物生物学大会

作者： Ya-Guang Ke~(1,2),Sun-Wu Yu~2,Li-Jun Luo(2*) 1 College of Plant science&Technology,Huazhong Agriculture University,Wuhan,430070,China 2 Shanghai Agrobiological Gene Center,Shanghai,201106,China

Drought stress is one of the most important constraints to rice production and yield stability in the rainfed *** DRJEB transcription factors play a critical role in plant development and abiotic stress responses and,therefore,represent attractive targets for a molecular plant breeding *** to the barley gene chip results and rice homologous analysis,a new DRE-binding protein gene OsDREB was isolated by RT-PCR from Oryza Sativa japonica *** has a open reading frame of 873bp,which encods 291 amino acid residues and was classified as a typical member of the AP2/EREBP family of DNA-binding proteins. Expression pattern analysis of OsDREB gene under various stresses indicated that the transcript of OsDREB was induced in response to dehydration stress,salt stress and ABA treatment,especially to cold stress(4℃).GUS stain in OsDREB promoter-GUS transgenic rices demonstrated that OsDREB expressed in different tissues and organs in different expression *** of yeast one-hybrid system showed that OsDREB had transcriptional activation activity and could specifically bind to the DRE *** understand its function in drought stress,overexpression and suppression transformation of rice were *** Observation revealed overexpression of OsDREB improve salt and cold tolerance in rice compared to wild type rice under salt and cold stress. However,OsDREB double-strand RNA interference(RNAi) lines were found to be more sensitive to drought stress than the wild ***,these results indicated that OsDREB,as an active transcription factor,participates in a wide range of abiotic stress processes.

关键词： OsDREB stress tolerance transcription factor

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Golgi-localized MORN1 promotes lipid droplet abundance and enhances tolerance to multiple stresses in Arabidopsis

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Journal of Integrative Plant Biology 2023年第8期65卷 1890-1903页

作者： Zhan Li Yue Gao Jiapei Yan Shuai Wang Shu Wang Yuanyuan Liu Shaokui Wang Jian Hua Guangdong Provincial Key Laboratory of Plant Molecular Breeding State Key Laboratory for Conservation and Utilization of Subtropical Agro-BioresourcesSouth China Agricultural UniversityGuangzhou 510640China School of Integrative Plant Science Plant Biology SectionCornell UniversityIthacaNY 14853USA

Lipid droplet(LD)in vegetative tissues has recently been implicated in environmental responses in plants,but its regulation and its function in stress tolerance are not well ***,we identified a Membrane Occupation and Recognition Nexus 1(MORN1)gene as a contributor to natural variations of stress tolerance through genome-wide association study in Arabidopsis *** of its loss-of-function mutant and natural variants revealed that the MORN1 gene is a positive regulator of plant growth,disease resistance,cold tolerance,and heat *** MORN1 protein is associated with the Golgi and is also partly associated with *** truncations that disrupt these associations abolished the biological function of the MORN1 ***,the MORN1 gene is a positive regulator of LD abundance,and its role in LD number regulation and stress tolerance is highly ***,this study identifies MORN1 as a positive regulator of LD abundance and a contributor to natural variations of stress *** implicates a potential involvement of Golgi in LD biogenesis and strongly suggests a contribution of LD to diverse processes of plant growth and stress responses.

关键词： cold Golgi heat immunity lipid droplet MORN1 natural variation stress tolerance

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