Arsenic stress affects the expression profile of genes of 14-3-3 proteins in the shoot of mycorrhiza colonized rice
详细信息 查看全文
- 作者：Varsha Pathare ; Sudhakar Srivastava…
- 关键词：14 ; 3 ; 3 proteins ; Arsenic ; Mycorrhiza ; Rice ; Stress
- 刊名：Physiology and Molecular Biology of Plants
- 出版年：2016
- 出版时间：October 2016
- 年：2016
- 卷：22
- 期：4
- 页码：515-522
- 全文大小：
- 刊物主题：Plant Sciences; Plant Physiology; Biological and Medical Physics, Biophysics; Cell Biology;
- 出版者：Springer India
- ISSN：0974-0430
- 卷排序：22
文摘
The intimate association between the arbuscular mycorrhizal fungi and host plants helps the latter in phosphate acquisition in exchange of carbohydrates and in enhanced stress tolerance. Similarly, the ubiquitous 14-3-3 protein family is known to be a major regulator of plant metabolism and stress responses. However, the involvement of mycorrhiza and plant 14-3-3 proteins interaction in plant response to environmental stimuli, such as arsenic (As) stress, is yet unknown. In this study, we analysed the impact of the As stress on the expression profile of 14-3-3 genes in the shoot of mycorrhiza colonized rice (Oryza sativa) plants. Ten day old rice seedlings were kept for 45 days for mycorrhizal colonisation (10 g inoculum per 120 g soilrite) and were then subjected to 12.5 µM arsenate [As(V)] exposure for 1 and 3 days, in hydroponics. Arsenate stress resulted in significant change in expression of 14-3-3 protein genes in non-colonized and mycorrhiza colonized rice plants which indicated As mediated effects on 14-3-3 proteins as well as interactive impact of mycorrhiza colonization. Indeed, mycorrhiza colonization itself induced up-regulation of all 14-3-3 genes in the absence of As stress. The results thus indicate that 14-3-3 proteins might be involved in As stress signalling and the mycorrhiza induced As stress response of the rice plants.