您好，欢迎访问广西农业科学院 机构知识库！

Identification of low Ca2+ stress-induced embryo apoptosis response genes in Arachis hypogaea by SSH-associated library lift (SSHaLL)

文献类型： 外文期刊

作者： Chen, Hua 1 ; Zhang, Chong 1 ; Cai, Tie Cheng 1 ; Deng, Ye 1 ; Zhou, Shuangbiao 1 ; Zheng, Yixiong 1 ; Ma, Shiwei 1 ; Tan 1 ;

作者机构： 1.Fujian Agr & Forestry Univ, Fujian Prov Key Lab Crop Mol & Cell Biol, Fuzhou, Peoples R China

2.Guangxi Acad Agr Sci, Cash Crops Res Inst, Nanning, Peoples R China

3.Int Crops Res Inst Semi Arid Trop, Patancheru, Andhra Pradesh, India

关键词： Arachis hypogaea;SSHaLL;embryo abortion;Ca2+ stress;Cyp707A4;abscisic acid

期刊名称：PLANT BIOTECHNOLOGY JOURNAL （ 影响因子：9.803； 五年影响因子：9.555 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： Calcium is a universal signal in the regulation of wide aspects in biology, but few are known about the function of calcium in the control of early embryo development. Ca2+ deficiency in soil induces early embryo abortion in peanut, producing empty pods, which is a general problem; however, the underlying mechanism remains unclear. In this study, embryo abortion was characterized to be caused by apoptosis marked with cell wall degradation. Using a method of SSH cDNA libraries associated with library lift (SSHaLL), 62 differentially expressed genes were isolated from young peanut embryos. These genes were classified to be stress responses, catabolic process, carbohydrate and lipid metabolism, embryo morphogenesis, regulation, etc. The cell retardation with cell wall degradation was caused by up-regulated cell wall hydrolases and down-regulated cellular synthases genes. HsfA4a, which was characterized to be important to embryo development, was significantly down-regulated under Ca2+-deficient conditions from 15days after pegging (DAP) to 30 DAP. Two AhCYP707A4 genes, encoding abscisic acid (ABA) 8-hydroxylases, key enzymes for ABA catabolism, were up-regulated by 21-fold under Ca2+-deficient conditions upstream of HsfA4a, reducing the ABA level in early embryos. Over-expression of AhCYP707A4 in Nicotiana benthamiana showed a phenotype of low ABA content with high numbers of aborted embryos, small pods and less seeds, which confirms that AhCYP707A4 is a key player in regulation of Ca2+ deficiency-induced embryo abortion via ABA-mediated apoptosis. The results elucidated the mechanism of low Ca2+-induced embryo abortion and described the method for other fields of study.

  • 相关文献

[1]Overexpression of a novel peanut NBS-LRR gene AhRRS5 enhances disease resistance to Ralstonia solanacearum in tobacco. Chen, Hua,Cai, Tiecheng,Deng, Ye,Zhuang, Weijian,Zhang, Chong,Chen, Hua,Cai, Tiecheng,Deng, Ye,Zhuang, Ruirong,Zhang, Ning,Zeng, Yuanhuan,Zheng, Yixiong,Zhuang, Weijian,Zheng, Yixiong,Tang, Ronghua,Pan, Ronglong,Pan, Ronglong. 2017

[2]Effects of Exogenous Abscisic Acid on Cell Membrane and Endogenous Hormone Contents in Leaves of Sugarcane Seedlings under Cold Stress. Yang, Li-Tao,Li, Yang-Rui,Wu, Jian-Ming,Huang, Xing,Chen, Ming-Hui,Yang, Li-Tao. 2015

[3]De novo analysis of transcriptome reveals genes associated with leaf abscission in sugarcane (Saccharum officinarum L.). Liang, Zhaoxu,Jing, Yan,Wu, Kaichao,Liang, Jun,He, Shanshan,Mo, Zhanghong,Tan, Fang,Li, Song,Wang, Lunwang,Zeng, Yuan,Wang, Guanyu. 2016

[4]The gall wasp Leptocybe invasa (Hymenoptera: Eulophidae) stimulates different chemical and phytohormone responses in two Eucalyptus varieties that vary in susceptibility to galling. Liu, Y. Z.,Guo, W. F.,Solanki, M. K.,Yang, Z. D.,Xiang, Y.,Ma, Z. C.,Wen, Y. G.,Guo, W. F..

[5]Signal transduction during aluminum-induced secretion of organic acids in plants. He, H.,He, L.,Gu, M..

作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：广西农业科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台