An Arabidopsis mutant of inositol pentakisphosphate 2-kinase AtIPK1 displays reduced arsenate tolerance

doi:10.1111/pce.12623

	An Arabidopsis mutant of inositol pentakisphosphate 2-kinase AtIPK1 displays reduced arsenate tolerance
	Sun, Yang-Yang ; Xu, Wen-Zhong ; Wu, Li ; Wang, Ruo-Zhong ; He, Zhen-Yan; Ma, Mi 3
	2016
发表期刊	PLANT CELL AND ENVIRONMENT
ISSN	0140-7791
卷号	39 期号:2 页码:416-426
摘要	Arsenate [As(V)] toxicity is considered to be derived from similarities in the chemical properties of As(V) and phosphate (Pi). An Arabidopsis thaliana mutant of inositol pentakisphosphate 2-kinase (AtIPK1), atipk1-1, has previously exhibited lower level of phytate and higher level of Pi, relative to wild-type (WT). Here, atipk1-1 displayed hypersensitivity to As(V) stress and less As(V) uptake when compared to WT. Overexpression of AtIPK1 controlled by the CaMV 35S promoter partially rescued the As(V)-sensitive phenotype of atipk1-1. When compared to control Pi status, addition of Pi enhanced As(V) tolerance of both WT and atipk1-1 plants, while the arsenic concentration was less reduced in the latter genotype. Despite the higher Pi level in atipk1-1 than did WT plants, the mutant suffered more severe Pi starvation under Pi limitation stress, indicating that Pi homeostasis was altered in the mutant. Gene expression analysis of WT and atipk1-1 plants showed the diverse effect of As(V) stress on Pi starvation-dependent regulation of Pi-responsive genes. Our study suggested that a particular mechanism of As(V) toxicity existed in atipk1-1 mutant, and may offer new insights into the interactions between Pi homeostasis and As(V) detoxification in plants.
关键词	Arabidopsis AtIPK1 arsenate phosphate phosphate homeostasis
学科领域	Plant Sciences
DOI	10.1111/pce.12623
收录类别	SCI
语种	英语
WOS关键词	PHOSPHATE STARVATION ; PLANT ; PHOSPHORUS ; ROOT ; TRANSPORTERS ; EXPRESSION ; HEXAKISPHOSPHATE ; AVAILABILITY ; ACCUMULATION ; ACQUISITION
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000370137300015
出版者	WILEY
文献子类	Article
出版地	HOBOKEN
EISSN	1365-3040
资助机构	National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31370299, 91117010] ; Science and Technology Project of Hunan Province [2010TY1004]
作者邮箱	mami@ibcas.ac.cn
引用统计	被引频次：5[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/25243
专题	中科院北方资源植物重点实验室
作者单位	1.[Sun, Yang-Yang 2.Xu, Wen-Zhong 3.He, Zhen-Yan 4.Chinese Acad Sci, Inst Bot, Key Lab Plant Resources, Beijing 100093, Peoples R China 5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 6.[Wu, Li 7.Hunan Agr Univ, Hunan Prov Key Lab Phytohormones & Growth & Dev, Changsha 410128, Hunan, Peoples R China
推荐引用方式 GB/T 7714	Sun, Yang-Yang,Xu, Wen-Zhong,Wu, Li,et al. An Arabidopsis mutant of inositol pentakisphosphate 2-kinase AtIPK1 displays reduced arsenate tolerance[J]. PLANT CELL AND ENVIRONMENT,2016,39(2):416-426.
APA	Sun, Yang-Yang,Xu, Wen-Zhong,Wu, Li,Wang, Ruo-Zhong,He, Zhen-Yan,&Ma, Mi.(2016).An Arabidopsis mutant of inositol pentakisphosphate 2-kinase AtIPK1 displays reduced arsenate tolerance.PLANT CELL AND ENVIRONMENT,39(2),416-426.
MLA	Sun, Yang-Yang,et al."An Arabidopsis mutant of inositol pentakisphosphate 2-kinase AtIPK1 displays reduced arsenate tolerance".PLANT CELL AND ENVIRONMENT 39.2(2016):416-426.

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