文献类型: 外文期刊
第一作者: Yue, Chuan
作者: Yue, Chuan;Cao, Hongli;Wang, Lu;Zhou, Yanhua;Hao, Xinyuan;Zeng, Jianming;Wang, Xinchao;Yang, Yajun;Wang, Lu;Zeng, Jianming;Wang, Xinchao;Yang, Yajun;Yue, Chuan;Cao, Hongli;Wang, Lu;Zhou, Yanhua;Hao, Xinyuan;Zeng, Jianming;Wang, Xinchao;Yang, Yajun
作者机构:
关键词: Abiotic stress;Aquaporin;Bud dormancy;Flower opening;Tea plant (Camellia sinensis)
期刊名称:PLANT PHYSIOLOGY AND BIOCHEMISTRY ( 影响因子:4.27; 五年影响因子:4.816 )
ISSN:
年卷期:
页码:
收录情况: SCI
摘要: The role of aquaporin proteins (AQPs) has been extensively studied in plants. However, the information of AQPs in the tea plant (Camellia sinensis) is unclear. In this manuscript, we isolated 20 full-length AQP cDNAs from the tea plant, and these sequences were classified into five subfamilies. The genes in these subfamilies displayed differential expression profiles in the studied tissues. The CsAQP expression patterns correlated with flower development and opening (FDO) and bud endodormancy (BED). To better understand the short-term expression patterns of CsAQPs in response to abiotic stress, tea plants were treated with abscisic acid (ABA), cold, salt or drought. ABA treatment down-regulated the expression of various CsAQPs. Salt up-regulated the transcription of most CsAQP genes. Cold treatment resulted in a complicated transcriptional regulation pattern for various CsAQPs. The expression of CsAQPs,especially plasma membrane intrinsic proteins (CsPIPs) and tonoplast intrinsic proteins (CsTIPs), was induced by drought and remained relatively high after rehydration in leaves, whereas almost all the CsAQPs were repressed in roots. Our results highlighted the diversity of CsAQPs in the tea plant and demonstrated that the CsPIP and CsTIP genes play a vital role in the stress response as well as in FDO and BED. Furthermore, certain CsSIPs (small basic intrinsic proteins), CsNIPs (NOD26-like intrinsic proteins) and CsXIPs (X intrinsic proteins) may regulate BED and FDO.
分类号: Q945`Q946
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