Pathogenesis Related (PR) 10 proteins in mediating plant responses to stress

介导植物应激反应的发病机制相关 (PR) 10 种蛋白质

• 批准号: 261189-2011
• 负责人: Kav, Nat
• 金额: $ 2.91万
• 依托单位: University of Alberta
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2012
• 资助国家: 加拿大
• 起止时间: 2012-01-01 至 2013-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=514572
• 关键词: Pathogenesis; Related; PR; 10; proteins

It is well-known that changes in gene expression, leading to changes in the amount and types of proteins that are synthesized in a plant cell, accompany plant responses to stress. A more thorough understanding of the roles played by each of these proteins in mediating those responses in stress is crucial for the development of better, and perhaps more rational, ways of improving plants to tolerate stresses better. Research in our laboratory has led to the identification of specific proteins belonging to the pathogenesis-related (PR) 10 protein family that may have potential to enhance germination, early seedling growth and productivity under conditions of stress. Research proposed in this application will further our knowledge into the precise mechanisms by which these proteins are able to elicit the observed effects. Knowledge gained from these studies will form the basis for developing plants with improved abilities to withstand environmental stresses such as salinity, drought and temperature extremes. Our research is timely and has the potential to mitigate threats posed to food security by improving productivity under conditions of environmental stress which are becoming increasingly common as a result of climate change. It is anticipated that climate change will negatively impact Canada's ability to produce food in a sustainable manner. Our research, therefore, will translate into long-term economic and social benefits for Canada and the rest of the world, brought about as a result of being able to sustain plant agriculture under sub-optimal environmental conditions.

众所周知，基因表达的变化会导致植物细胞中合成的蛋白质的数量和类型发生变化，伴随着植物对胁迫的反应。更彻底地了解每种蛋白质在调节逆境反应中所起的作用，对于开发更好的、或许更合理的方法来改进植物以更好地耐受逆境至关重要。我们实验室的研究已经鉴定出属于病程相关(PR)10蛋白家族的特定蛋白，这些蛋白可能在胁迫条件下促进种子萌发、早期幼苗生长和生产力。在这项申请中提出的研究将进一步加深我们对这些蛋白质能够引起观察到的效应的精确机制的了解。从这些研究中获得的知识将为开发具有更好的抵御环境压力(如盐分、干旱和极端温度)的能力的植物奠定基础。我们的研究是及时的，有可能通过提高由于气候变化而变得越来越普遍的环境压力条件下的生产率来减轻对粮食安全构成的威胁。预计气候变化将对加拿大以可持续方式生产粮食的能力产生负面影响。因此，我们的研究将转化为加拿大和世界其他地区的长期经济和社会效益，这是能够在次优环境条件下维持植物农业的结果。