Reciprocal grafting separates the roles of the root and shoot in sex-related drought responses in Populus cathayana males and females

	Reciprocal grafting separates the roles of the root and shoot in sex-related drought responses in Populus cathayana males and females
	Han, Ying ; Wang, Yuhua ; Jiang, Hao ; Wang, Maolin ; Korpelainen, Helena ; Li, Chunyang
刊名	PLANT CELL AND ENVIRONMENT
	2013
卷号	36 期号:2 页码:356-364
关键词	dioecious gas exchange graft ultrastructure water-use efficiency
ISSN号	0140-7791
通讯作者	Li, CY (reprint author), Chinese Acad Sci, Chengdu Inst Biol, POB 416, Chengdu 610041, Peoples R China.
产权排序	1
英文摘要	Drought stress responses and sensitivity of dioecious plants, such as Populus cathayana Rehd., are determined by different mechanisms in each sex. In general, males tend to be more resistant while females are more sensitive. Here, we used reciprocal grafting between males and females to determine the relative importance of roots and shoots when plants are exposed to drought stress. Total dry matter accumulation (DMA), photosynthetic capacity, long-term water-use efficiency (?), water potential and ultrastructure of mesophyll cells were evaluated to determine the different roles of root and shoot in sex-related drought responses. Plants with male roots were found to be more resistant and less sensitive to water stress than those with female roots under drought conditions. On the contrary, plants with female shoots grew better than those with male shoots under well-watered conditions. These results indicated that the sensitivity of males and females to water stress is primarily influenced by root processes, while under well-watered conditions sexual differences in growth are primarily driven by shoot processes. Furthermore, grafting female shoot scion onto male rootstock was proved to be an effective mean to improve resistance to water stress in P. cathayana females.
学科主题	Plant Sciences
收录类别	SCI
语种	英语
WOS记录号	WOS:000312997700009
公开日期	2014-11-21
内容类型	期刊论文
源URL	[http://210.75.237.14/handle/351003/24244]
专题	成都生物研究所_生态研究
推荐引用方式 GB/T 7714	Han, Ying,Wang, Yuhua,Jiang, Hao,et al. Reciprocal grafting separates the roles of the root and shoot in sex-related drought responses in Populus cathayana males and females[J]. PLANT CELL AND ENVIRONMENT,2013,36(2):356-364.
APA	Han, Ying,Wang, Yuhua,Jiang, Hao,Wang, Maolin,Korpelainen, Helena,&Li, Chunyang.(2013).Reciprocal grafting separates the roles of the root and shoot in sex-related drought responses in Populus cathayana males and females.PLANT CELL AND ENVIRONMENT,36(2),356-364.
MLA	Han, Ying,et al."Reciprocal grafting separates the roles of the root and shoot in sex-related drought responses in Populus cathayana males and females".PLANT CELL AND ENVIRONMENT 36.2(2013):356-364.