干旱区生态环境知识资源中心(Arid): To exclude or to accumulate? Revealing the role of the sodium HKT1;5 transporter in plant adaptive responses to varying soil salinity

Arid

DOI	10.1016/j.plaphy.2021.11.030
	To exclude or to accumulate? Revealing the role of the sodium HKT1;5 transporter in plant adaptive responses to varying soil salinity
	Venkataraman, Gayatri; Shabala, Sergey; Very, Anne-Alienor; Hariharan, Gopalasamudram Neelakantan; Somasundaram, Suji; Pulipati, Shalini; Sellamuthu, Gothandapani; Harikrishnan, Mohan; Kumari, Kumkum; Shabala, Lana; Zhou, Meixue; Chen, Zhong-Hua
通讯作者	Venkataraman, G (corresponding author), MS Swaminathan Res Fdn, Plant Mol Biol Lab, III Cross St, Chennai 600113, Tamil Nadu, India. ; Shabala, S (corresponding author), Univ Tasmania, Coll Sci & Engn, Tasmanian Inst Agr, Private Bag 98, Hobart, Tas 7001, Australia. ; Shabala, S (corresponding author), Foshan Univ, Int Res Ctr Environm Membrane Biol, Foshan 528000, Peoples R China. ; Very, AA (corresponding author), Univ Montpellier, Inst Agro, INRAE, CNRS,Biochim & Physiol Mol Plantes,UMR, F-34060 Montpellier 2, France.
来源期刊	PLANT PHYSIOLOGY AND BIOCHEMISTRY
ISSN	0981-9428
EISSN	1873-2690
出版年	2021
卷号	169 页码:333-342
英文摘要	Arid/semi-arid and coastal agricultural areas of the world are especially vulnerable to climate change-driven soil salinity. Salinity tolerance in plants is a complex trait, with salinity negatively affecting crop yield. Plants adopt a range of mechanisms to combat salinity, with many transporter genes being implicated in Na+-partitioning processes. Within these, the high-affinity K+ (HKT) family of transporters play a critical role in K+ and Na+ homeostasis in plants. Among HKT transporters, Type I transporters are Na+-specific. While Arabidopsis has only one Na+-specific HKT (AtHKT1;1), cereal crops have a multiplicity of Type I and II HKT transporters. AtHKT1; 1 (Arabidopsis thaliana) and HKT1; 5 (cereal crops) 'exclude' Na+ from the xylem into xylem parenchyma in the root, reducing shoot Na+ and hence, confer sodium tolerance. However, more recent data from Arabidopsis and crop species show that AtHKT1;1/HKT1;5 alleles have a strong genetic association with 'shoot sodium accumulation' and concomitant salt tolerance. The review tries to resolve these two seemingly contradictory effects of AtHKT1;1/HKT1;5 operation (shoot exclusion vs shoot accumulation), both conferring salinity tolerance and suggests that contrasting phenotypes are attributable to either hyper-functional or weak AtHKT1;1/HKT1;5 alleles/haplotypes and are under strong selection by soil salinity levels. It also suggests that opposite balancing mechanisms involving xylem ion loading in these contrasting phenotypes exist that require transporters such as SOS1 and CCC. While HKT1; 5 is a crucial but not sole determinant of salinity tolerance, investigation of the adaptive benefit(s) conferred by naturally occurring intermediate HKT1;5 alleles will be important under a climate change scenario.
英文关键词	Salinity Sodium Potassium Exclusion Xylem loading Haplotype Allele
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	SCI-E
WOS记录号	WOS:000725594000008
WOS关键词	QUANTITATIVE TRAIT LOCUS ; SALT-TOLERANCE ; STRESS TOLERANCE ; NA+ ACCUMULATION ; DNA METHYLATION ; PLASMA-MEMBRANE ; K+ TRANSPORT ; ARABIDOPSIS ; EXPRESSION ; POTASSIUM
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/374037
作者单位	[Venkataraman, Gayatri; Hariharan, Gopalasamudram Neelakantan; Pulipati, Shalini; Sellamuthu, Gothandapani; Harikrishnan, Mohan; Kumari, Kumkum] MS Swaminathan Res Fdn, Plant Mol Biol Lab, III Cross St, Chennai 600113, Tamil Nadu, India; [Shabala, Sergey; Shabala, Lana; Zhou, Meixue] Univ Tasmania, Coll Sci & Engn, Tasmanian Inst Agr, Private Bag 98, Hobart, Tas 7001, Australia; [Shabala, Sergey] Foshan Univ, Int Res Ctr Environm Membrane Biol, Foshan 528000, Peoples R China; [Very, Anne-Alienor] Univ Montpellier, Inst Agro, INRAE, CNRS,Biochim & Physiol Mol Plantes,UMR, F-34060 Montpellier 2, France; [Somasundaram, Suji] Saveetha Sch Engn, Saveetha Inst Med & Tech Sci, Dept Biotechnol, Chennai 600124, Tamil Nadu, India; [Sellamuthu, Gothandapani] Czech Univ Life Sci Prague CZU, Fac Forestry & Wood Sci, Forest Mol Entomol Lab, Kamycka 129, Prague 16500, Czech Republic; [Chen, Zhong-Hua] Western Sydney Univ, Sch Sci, Hawkesbury Inst Environm, Penrith, NSW 2751, Australia
推荐引用方式 GB/T 7714	Venkataraman, Gayatri,Shabala, Sergey,Very, Anne-Alienor,et al. To exclude or to accumulate? Revealing the role of the sodium HKT1;5 transporter in plant adaptive responses to varying soil salinity[J],2021,169:333-342.
APA	Venkataraman, Gayatri.,Shabala, Sergey.,Very, Anne-Alienor.,Hariharan, Gopalasamudram Neelakantan.,Somasundaram, Suji.,...&Chen, Zhong-Hua.(2021).To exclude or to accumulate? Revealing the role of the sodium HKT1;5 transporter in plant adaptive responses to varying soil salinity.PLANT PHYSIOLOGY AND BIOCHEMISTRY,169,333-342.
MLA	Venkataraman, Gayatri,et al."To exclude or to accumulate? Revealing the role of the sodium HKT1;5 transporter in plant adaptive responses to varying soil salinity".PLANT PHYSIOLOGY AND BIOCHEMISTRY 169(2021):333-342.