How Does Silicon Mediate Plant Water Uptake and Loss Under Water Deficiency?

doi:10.3389/fpls.2018.00281

	How Does Silicon Mediate Plant Water Uptake and Loss Under Water Deficiency?
	Chen, Daoqian 1,2; Wang, Shiwen 1,3; Yin, Lina 1,3; Deng, Xiping 1,3
刊名	FRONTIERS IN PLANT SCIENCE
	2018-03-05
卷号	9 页码:7
关键词	silicon water status water balance drought salt stress transpiration water uptake
ISSN号	1664-462X
DOI	10.3389/fpls.2018.00281
通讯作者	Wang, Shiwen(shiwenwang@nwsuaf.edu.cn)
英文摘要	In plants, water deficiency can result from a deficit of water from the soil, an obstacle to the uptake of water or the excess water loss; in these cases, the similar consequence is the limitation of plant growth and crop yield. Silicon (Si) has been widely reported to alleviate the plant water status and water balance under variant stress conditions in both monocot and dicot plants, especially under drought and salt stresses. However, the underlying mechanism is unclear. In addition to the regulation of leaf transpiration, recently, Si application was found to be involved in the adjustment of root hydraulic conductance by up-regulating aquaporin gene expression and concentrating K in the xylem sap. Therefore, this review discusses the potential effects of Si on both leaf transpiration and root water absorption, especially focusing on how Si modulates the root hydraulic conductance. A growing number of studies support the conclusion that Si application improves plant water status by increasing root water uptake, rather than by decreasing their water loss under conditions of water deficiency. The enhancement of plant water uptake by Si is achievable through the activation of osmotic adjustment, improving aquaporin activity and increasing the root/shoot ratio. The underlying mechanisms of the Si on improving plant water uptake under water deficiency conditions are discussed.
资助项目	National Natural Science Foundation of China[31101597] ; National Key Technology Support Program of China[2015BAD22B01] ; Chinese Education Ministry[B12007]
WOS关键词	DROUGHT TOLERANCE MECHANISM ; ROOT HYDRAULIC CONDUCTANCE ; IMPROVES SALT TOLERANCE ; SORGHUM-BICOLOR L ; ZEA-MAYS L. ; ABIOTIC STRESSES ; OSMOTIC-STRESS ; ANTIOXIDANT MECHANISMS ; SALINITY TOLERANCE ; LIPID-PEROXIDATION
WOS研究方向	Plant Sciences
语种	英语
出版者	FRONTIERS MEDIA SA
WOS记录号	WOS:000426677500001
资助机构	National Natural Science Foundation of China ; National Key Technology Support Program of China ; Chinese Education Ministry
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/60282]
专题	中国科学院地理科学与资源研究所
通讯作者	Wang, Shiwen
作者单位	1.Northwest A&F Univ, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling, Peoples R China 2.Fujian Agr & Forestry Univ, Coll Crop Sci, Fuzhou, Fujian, Peoples R China 3.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling, Peoples R China
推荐引用方式 GB/T 7714	Chen, Daoqian,Wang, Shiwen,Yin, Lina,et al. How Does Silicon Mediate Plant Water Uptake and Loss Under Water Deficiency?[J]. FRONTIERS IN PLANT SCIENCE,2018,9:7.
APA	Chen, Daoqian,Wang, Shiwen,Yin, Lina,&Deng, Xiping.(2018).How Does Silicon Mediate Plant Water Uptake and Loss Under Water Deficiency?.FRONTIERS IN PLANT SCIENCE,9,7.
MLA	Chen, Daoqian,et al."How Does Silicon Mediate Plant Water Uptake and Loss Under Water Deficiency?".FRONTIERS IN PLANT SCIENCE 9(2018):7.