ZxNPF7.3/NRT1.5 from the xerophyte Zygophyllum xanthoxylum modulates salt and drought tolerance by regulating NO3−, Na+ and K+ transport
ZxNPF7.3/NRT1.5 from the xerophyte Zygophyllum xanthoxylum modulates salt and drought tolerance by regulating NO3−, Na+ and K+ transport
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来自旱生植物 Zygophyllum xantoxylum 的 ZxNPF7.3/NRT1.5 通过调节 NO3、Na 和 K 运输来调节耐盐性和耐旱性
DOI：
10.1016/j.envexpbot.2020.104123
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发表时间：
2020-09
影响因子：
5.7
通讯作者：
Qing Ma
中科院分区：
文献类型：
--
作者：
Jian-Zhen Yuan;Yan-Nong Cui;Xiao-Ting Li;Fang-Zhen Wang;Zi-Hua He;Xiao-Yu Li;Ai-Ke Bao;Suo-Min Wang;Qing Ma
硝酸盐转运蛋白1/肽转运蛋白家族成员NPF7.3/NRT1.5负责NO3−的长距离运输，并参与影响植物的耐盐性和耐旱性。然而，目前的研究只集中在AtNRT 1.5从胁迫敏感的糖植物拟南芥。本研究以典型的旱生植物霸王（Zygophyllum xanthoxylumin）为材料，分析了NRT 1.5同源物ZxNRT 1.5的离子转运功能及其与植物耐盐性和耐旱性的关系。结果表明，ZxNRT 1. 5主要在根中柱中表达，其表达水平受盐处理和渗透胁迫的诱导。ZxNRT1.5在拟南芥中的过表达表明，ZxNRT1.5介导了NO3−从根到茎的运输，并有助于提高NO3−的吸收。过量表达ZxNRT 1. 5可能通过降低AtHKT 1; 1基因在根中的表达，增加Na+的积累，并通过改变细胞膜的极化，促进K+的根-冠运输。同时，ZxNRT 1. 5过表达株系对甘露醇诱导的渗透胁迫表现出较强的耐受性，这是由于其体内NO3-积累增加，同时积累了少量有利于植株生长的Na+。这些发现表明，ZxNRT 1.5不仅是NO3−长距离运输和积累所必需的，而且还参与调节Na+和K+的运输，从而调节盐和干旱耐受性。
The Nitrate Transporter1/Peptide Transporter family member NPF7.3/NRT1.5 is responsible for long-distance transport of NO3−and involved in affecting salt and drought tolerance in plants. However, current studies have only focused on AtNRT1.5 from the stress-sensitive glycophyte Arabidopsis. In this study, the function of the NRT1.5 homolog ZxNRT1.5 from the typical xerophyteZygophyllum xanthoxylumin ion transport and plants’ salt and drought tolerance was analyzed. The results indicated thatZxNRT1.5was mainly expressed in the root stele, and its expression level was significantly induced by salt treatments and osmotic stress. Overexpression ofZxNRT1.5in Arabidopsis showed that ZxNRT1.5 mediated root-to-shoot NO3−transport and contributed to enhancing NO3−uptake. Overexpression ofZxNRT1.5increased Na+accumulation by decreasing the expression ofAtHKT1;1in roots, and promoted root-to-shoot transport of K+probably by changing polarization of cell membrane under salt stress. Meanwhile,ZxNRT1.5-overexpressing lines exhibited stronger tolerance to mannitol-induced osmotic stress, resulted from an increased accumulation of NO3−and the accumulation of a small quantity of Na+that was beneficial for plant growth. These findings suggest that ZxNRT1.5 is not only essential for long-distance transport and accumulation of NO3−, but also involved in regulating Na+and K+transport, thereby modulating salt and drought tolerance.
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影响因子：
4.2
作者：
Hui-Jun Yuan;Q. Ma;Guo-Qiang Wu;Pei Wang;Jing Hu;Suo-min Wang
通讯作者：
Hui-Jun Yuan;Q. Ma;Guo-Qiang Wu;Pei Wang;Jing Hu;Suo-min Wang
影响因子：
3.5
作者：
J. Ohnishi;R. Kanai
通讯作者：
J. Ohnishi;R. Kanai
DOI：
10.1016/j.bbrc.2015.01.009
发表时间：
2015-02
影响因子：
3.1
作者：
Li Zhong;Dandan Chen;Dong-hong Min;Weiwei Li;Zhaoshi Xu;Yongbin Zhou;Lian-cheng Li;Ming Chen
通讯作者：
Li Zhong;Dandan Chen;Dong-hong Min;Weiwei Li;Zhaoshi Xu;Yongbin Zhou;Lian-cheng Li;Ming Chen
氯化钠改善多汁旱生植物霸王的光合作用和水分状况
影响因子：
4
作者：
Ma, Qing;Yue, Li-Jun;Wang, Suo-Min
通讯作者：
Wang, Suo-Min
影响因子：
5.6
作者：
Honghong Wu;Zhaohu Li
通讯作者：
Honghong Wu;Zhaohu Li