干旱区生态环境知识资源中心(Arid): Comparative proteomics analyses of intraspecific differences in the response of Stipa purpurea to drought

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	Comparative proteomics analyses of intraspecific differences in the response of Stipa purpurea to drought
	Li Xiong; Yang Yunqiang; Yang Shihai; Sun Xudong; Yin Xin; Zhao Youjie; Yang Yongping
来源期刊	Plant DiversityPlant Diversity and Resourcues
ISSN	2095-0845
出版年	2016
卷号	38 期号:2 页码:124-145
英文摘要	Stipa purpurea is widely distributed along a large precipitation gradient on the Tibetan Plateau. This implies that S.purpurea from different populations may have different responses to drought stress. To explore this we compared the morphological and physiological changes of S.purpurea seedlings cultivated from seeds from Gar County and Nagqu County after 7 and 14 days of drought stress and subsequent re-watering. The results showed that S.purpurea plants from the more arid Gar area were more tolerant to drought stress than that from Nagqu. To investigate the potential mechanisms underlying this difference, we used iTRAQ quantitative proteomics technology to analyze protein dynamics in S.purpurea samples treated with 7 days of drought stress and subsequent re-watering. The results indicated that, during the process of drought and re-watering treatments, there were differentially expressed proteins in either or both S.purpurea populations. These differential proteins were divided into 24 functional categories that were mainly associated with stress response, the antioxidant system, photosynthesis, carbohydrate metabolism, and post-translational modifications. According to these results, we concluded that the molecular basis of stronger drought resistance likely lies in the specific up-regulation or higher expression of many proteins involved in stress response, the antioxidant system, post-translational modification and osmotic regulation in S.purpurea from Gar County compared with that from Nagqu. This study improves our understanding of the intraspecific differences in drought resistance within S.purpurea populations, which helps to understand the distribution of S.purpurea along the moisture gradient, as well as the effect of climate change on this species.
英文关键词	Stipa purpurea Drought Proteomics Tibetan Plateau Adaptation
类型	Article
语种	英语
收录类别	CSCD
WOS研究方向	Plant Sciences
CSCD记录号	CSCD:5703913
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335649
作者单位	Li Xiong, Kunming Institute of Botany, Chinese Academy of Sciences, Key Laboratory for Plant Diversity and Biogeography of East Asia, Chinese Academy of Sciences, Kunming, Yunnan 650201, China.; Yang Yunqiang, Kunming Institute of Botany, Chinese Academy of Sciences, Key Laboratory for Plant Diversity and Biogeography of East Asia, Chinese Academy of Sciences, Kunming, Yunnan 650201, China.; Sun Xudong, Kunming Institute of Botany, Chinese Academy of Sciences, Key Laboratory for Plant Diversity and Biogeography of East Asia, Chinese Academy of Sciences, Kunming, Yunnan 650201, China.; Yin Xin, Kunming Institute of Botany, Chinese Academy of Sciences, Key Laboratory for Plant Diversity and Biogeography of East Asia, Chinese Academy of Sciences, Kunming, Yunnan 650201, China.; Yang Yongping, Kunming Institute of Botany, Chinese Academy of Sciences, Key Laboratory for Plant Diversity and Biogeography of East Asia, Chinese Academy of Sciences, Kunming, Yunnan 650201, China.; Yang Shihai, Institute of Genetics...
推荐引用方式 GB/T 7714	Li Xiong,Yang Yunqiang,Yang Shihai,et al. Comparative proteomics analyses of intraspecific differences in the response of Stipa purpurea to drought[J],2016,38(2):124-145.
APA	Li Xiong.,Yang Yunqiang.,Yang Shihai.,Sun Xudong.,Yin Xin.,...&Yang Yongping.(2016).Comparative proteomics analyses of intraspecific differences in the response of Stipa purpurea to drought.Plant DiversityPlant Diversity and Resourcues,38(2),124-145.
MLA	Li Xiong,et al."Comparative proteomics analyses of intraspecific differences in the response of Stipa purpurea to drought".Plant DiversityPlant Diversity and Resourcues 38.2(2016):124-145.