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cross tolerance: a tread to decipher the code of endogenous global cerebral resistance

Neural Regeneration Research 2016年第5期11卷 719-720页

作者： Ashish Sharma Rohit Goyal Department of Pharmacology School of Pharmaceutical SciencesShoolini University

A cell is a house to myriad biochemical reactions composed in a symphony of various pathways,both survival and *** is of fundamental significance to an organ by replacing weary and senile cells with juvenile cells.

关键词： a tread to decipher the code of endogenous global cerebral resistance cross tolerance

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Possible Involvement of Anti-Oxidant Enzymes in the cross-tolerance of the Germination/Growth of Wheat Seeds to Salinity and Heat Stress

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Journal of Integrative Plant Biology 2005年第10期47卷 1211-1219页

作者： Yan-Bao LEI Song-Quan SONG Jia-Rui FU Xishuangbanna Tropical Botanical Garden the Chinese Academy of Sciences Yunnan 666303 China School of Life Sciences Sun Yat-Sen University Guangzhou 510275 China

The germination/growth of wheat （Triticum aestivum L. cv. Zimai 1） seeds and changes in the activities of superoxide dismutase （SOD）, ascorbate peroxidase （APX）, and catalase （CAT）, as well as in the content of thiobarbituric acid-reactive substances （TBARS）, in response to salt and heat stress, as well as cross-stress, were investigated in the present study. With increasing temperature and decreasing water potential caused by NaCI solution, the germination percentage of seeds and the fresh weight of seedlings decreased markedly, SOD activity increased, activities of APX and CAT decreased distinctly, and the TBARS content increased gradually. Seeds pretreated at 33℃ for different times displayed increased tolerance to subsequent salt stress, enhanced SOD, APX, and CAT activities, and decreased TBARS content. Seeds pretreated at -0.8 MPa NaCI for different times displayed increased tolerance to subsequent heat stress and marked increases in SOD, APX, and CAT activities, which were associated with decreased TBARS content. It is considered that the common component in the cross-tolerance of the germination and growth of wheat seeds to salinity and heat stress is the anti-oxidant enzyme system.

关键词： anti-oxidant enzymes cross tolerance germination growth heat stress salinity stress Triticum aestivum seeds.

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Identification of genes involved in cadmium-ion tolerance in evolutionary Synechocystis *** 6803 tolerant to both cadmium and high light

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Chinese Journal of Chemical Engineering 2024年第10期74卷 74-82页

作者： Jie Xiong Zhengxin Dong Yaru Xie Weiwen Zhang Tao Sun Lei Chen Laboratory of Synthetic Microbiology School of Chemical Engineering&TechnologyTianjin UniversityTianjin 300072China Frontier Science Center for Synthetic Biology&Key Laboratory of Systems Bioengineering Ministry of Education of ChinaTianjin 300072China Center for Biosafety Research and Strategy Tianjin UniversityTianjin 300072China

Photosynthetic cyanobacteria have shown great potential as“autotrophic cell factories”for the synthesis of fuels and ***,poor tolerance to various environmental stressors such as high light and heavy metals is an important factor limiting their economic *** numerous studies have focused on the tolerance mechanism of cyanobacteria to individual stressors,their response to simultaneous stresses remains to be *** investigate the mechanism of cross tolerance to heavymetal Cd^(2+) and high light,the model cyanobacterium Synechocystis *** 6803 tolerant to both Cd^(2+) and high light was obtained via about 800 days’cross-adaptive laboratory *** evolutionary strains capable of tolerating both 5.5 μmol·L^(-1) Cd^(2+) and 600 μmol·m^(-2)·s^(-1) high light were successfully obtained,achieving about 83%enhancement of Cd^(2+) tolerance compared with the parent *** different response of parent and evolutionary strains to Cd^(2+) was elucidated via ***,a total of 15 genes that were mutated during evolution were identified by whole-genome ***,by single-gene knockout and complementation analysis,four genes including ssl2615,sll1732,ssr1480,and sll1659 involved in the improvement of Cd^(2+) tolerance under high-light condition were successfully *** work explored the tolerance mechanism of Synechocystis *** 6803 to cadmium under high-light condition and provided valuable reference for deciphering multitolerance mechanism of cyanobacteria in the future.

关键词： Synechocystis Adaptive laboratory evolution cross tolerance Cadmium-ion tolerance

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