Loading content, please wait..
loading..
Logo
Version 3.24
or
Authors Hu, J; Ma, Q; Kumar, T; Duan, HR; Zhang, JL; Yuan, HJ; Wang, Q; Khan, SA; Wang, P; Wang, SM
Author Full Name Hu, Jing; Ma, Qing; Kumar, Tanweer; Duan, Hui-Rong; Zhang, Jin-Lin; Yuan, Hui-Jun; Wang, Qian; Khan, Sardar Ali; Wang, Pei; Wang, Suo-Min
Title ZxSKOR is important for salinity and drought tolerance of Zygophyllum xanthoxylum by maintaining K+ homeostasis
Source PLANT GROWTH REGULATION
Language English
Document Type Article
Author Keywords Zygophyllum xanthoxylum; SKOR; Long-distance K+ transport; Drought and salt tolerance
Keywords Plus SALT TOLERANCE; POTASSIUM CHANNEL; PLANT-RESPONSES; PLASMA-MEMBRANE; CATION TRANSPORTERS; XYLEM PARENCHYMA; PATCH-CLAMP; NA+; ARABIDOPSIS; EXPRESSION
Abstract As an important nutrient element, K+ plays a crucial role in plant stress resistance. It was reported that the stelar K+ outward rectifying channel (SKOR) is involved in loading K+ into xylem for its transport from roots to shoots. Zygophyllum xanthoxylum, a succulent woody xerophyte, could maintain stable K+ concentration in leaves to adapt to salt and arid environments. Here we characterized ZxSKOR from Z. xanthoxylum, ZxSKOR expression patterns and Na+ and K+ accumulation in Z. xanthoxylum treated with various concentrations of KCl and NaCl and-0.5 MPa osmotic stress were investigated in order to assess the contribution of ZxSKOR to K+ homeostasis. The results showed that ZxSKOR was predominantly expressed in roots and stems rather than in leaves. Its expression levels in roots and stems increased significantly accompanied by an increase in K+ concentration in leaves when plants were exposed to 5-10 mM KCl. Moreover, a positive correlation was identified not only between ZxSKOR expression in roots and K+ accumulation in shoots, but also between ZxSKOR expression in stems and K+ accumulation in leaves. Transcription levels of ZxSKOR in roots and stems under high salinity (100-150 mM NaCl) and osmotic stress (-0.5 MPa) were 2.0-2.8 times those in plants grown in the absence of NaCl or osmotic stress. Concomitantly, the expression level of ZxSKOR in roots under osmotic stress plus salt (-0.5 MPa + 50 mM NaCl) was significantly higher than that under osmotic stress (-0.5 MPa) alone during 12-48 h of treatment. We propose that ZxSKOR in roots and stems is well-coordinated to mediate long-distance K+ transport and perhaps plays an important role in K+ accumulation and homeostasis in Z. xanthoxylum under salt as well as drought stress.
Author Address [Hu, Jing; Ma, Qing; Kumar, Tanweer; Duan, Hui-Rong; Zhang, Jin-Lin; Yuan, Hui-Jun; Wang, Qian; Khan, Sardar Ali; Wang, Pei; Wang, Suo-Min] Lanzhou Univ, Coll Pastoral Agr Sci & Technol, State Key Lab Grassland Agroecosyst, Lanzhou 730020, Peoples R China
Reprint Address Wang, SM (corresponding author), Lanzhou Univ, Coll Pastoral Agr Sci & Technol, State Key Lab Grassland Agroecosyst, Lanzhou 730020, Peoples R China.
E-mail Address smwang@lzu.edu.cn
ResearcherID Number Zhang, Jinlin/AAQ-6331-2020
ORCID Number Zhang, Jinlin/0000-0002-3562-920X
Funding Agency and Grant Number National Basic Research Program of China (973 Program)National Basic Research Program of China [2014CB138701]; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31222053, 31470503, 31501994]; Specialized Research Fund for the Doctoral Program of Higher Education of ChinaSpecialized Research Fund for the Doctoral Program of Higher Education (SRFDP) [20130211130001]
Funding Text We are very grateful to Professor Timothy J. Flowers from University of Sussex, UK, for critically reviewing the manuscript and for valuable suggestions. This work was supported by the National Basic Research Program of China (973 Program, Grant No. 2014CB138701), the National Natural Science Foundation of China (Grant Nos. 31222053, 31470503 and 31501994), the Specialized Research Fund for the Doctoral Program of Higher Education of China (Grant No. 20130211130001).
Times Cited 16
Total Times Cited Count (WoS, BCI, and CSCD) 27
Publisher SPRINGER
Publisher City DORDRECHT
Publisher Address VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
ISSN 0167-6903
29-Character Source Abbreviation PLANT GROWTH REGUL
ISO Source Abbreviation Plant Growth Regul.
Publication Date NOV
Year Published 2016
Volume 80
Issue 2
Beginning Page 195
Ending Page 205
Digital Object Identifier (DOI) 10.1007/s10725-016-0157-z
Page Count 11
Web of Science Category Plant Sciences
Subject Category Plant Sciences
Document Delivery Number DY9UO
Unique Article Identifier WOS:000385480800009
Plants associated with this reference

LEGAL NOTICES — This website is protected by Copyright © The University of Sussex, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022. The eHALOPH database is protected by Database Right and Copyright © The University of Sussex and other contributors, 2006, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022. This database is based on an earlier work by James Aronson.
THIS WEBSITE AND THIS DATABASE ARE PROVIDED ON AN "AS IS" BASIS, AND YOU USE THEM AND RELY ON THEM AT YOUR OWN RISK.

Contact email: halophytes@sussex.ac.uk
Credits – Tim Flowers, Joaquim Santos, Moritz Jahns, Brian Warburton, Peter Reed