Loading content, please wait..
loading..
Logo
Version 3.20
or
Publication Type J
Authors Zhang, B; Li, PF; Fan, FC
Author Full Name Zhang, Biao; Li, Pin-Fang; Fan, Fen-Cheng
Title Ionic relations and proline accumulation in shoots of two Chinese Iris germplasms during NaCl stress and subsequent relief
Source PLANT GROWTH REGULATION
Language English
Document Type Article
Author Keywords Iris lactea var. chinensis; Ionic relations; Proline accumulation; Adaptation to salinity
Keywords Plus SALT TOLERANCE; SALINITY TOLERANCE; PLANT-GROWTH; DURUM-WHEAT; NA+; HALOPHYTES; TRANSPORT; PERGRANULATA; MECHANISMS; CULTIVARS
Abstract Adaptation to salinity in plant includes not only their response to stress, but also their ability to recover from it. Seeds of Chinese Iris (Iris lactea var. chinensis) collected randomly from an arid area in inland province of Xinjiang (Xj, E93A degrees 30('), N42A degrees 48('), 740 m), and a semi-arid coastal area in Beijing Municipality (Bj, N40A degrees 34('), E116A degrees 10('), 540 m) were studied. The objectives were to determine differences between germplasms in ionic relations or accumulation of proline in the shoots and establish how I. lactea adapts to salt stress and subsequent relief. Hydroponically-grown seedlings of the two germplasms were supplied with nutrient solutions containing 0.1 (control), 140 and 280 mM NaCl for 12 days, and supplied subsequently with a non-saline control solution for 12 days to relieve NaCl stress. Germplasm Xj had larger shoot mass and shoot/root ratio than Bj during stress and recovery periods. Salinity, even subsequent recovery, more adversely affected the water content in Bj than Xj. Under identical provision of treatments, the Xj maintained relatively higher K+/Na+ ratio and selectivity for transportation of K+ over Na+ than Bj. Additionally, we observed a slight proline accumulation in shoots of Bj, but its content was insufficient for lowering the solute potential. Germplasm Xj exhibits better adaptation to salinity and subsequent recovery. This is mainly due to its higher selectivity for transporting K+ over Na+. Proline accumulation did not play a key role the osmotic adjustment of the two I. lactea germplasms studied.
Author Address [Zhang, Biao; Li, Pin-Fang] China Agr Univ, Coll Resources & Environm Sci, Minist Agr, Key Lab Arable Land Conservat N China, Beijing 100193, Peoples R China; [Fan, Fen-Cheng] Beijing Oasis Technol Dev Co Ltd, Beijing 100193, Peoples R China
Reprint Address Li, PF (reprint author), China Agr Univ, Coll Resources & Environm Sci, Minist Agr, Key Lab Arable Land Conservat N China, Beijing 100193, Peoples R China.
E-mail Address pinfangli@163.com
Funding Agency and Grant Number National Key Basic Research Program of China [2009CB825101]; National Natural Science Foundation of China [30870237]
Funding Text This work was supported financially by the National Key Basic Research Program of China (2009CB825101) and the National Natural Science Foundation of China (30870237). We are thankful to Professor Anthony Egrinya Eneji (University of Calabar, Nigeria) and Hai-Min Wang (College of Humanities and Development, China Agricultural University, China) for their critical reading and revision of the manuscript.
Cited Reference Count 30
Times Cited 6
Total Times Cited Count (WoS, BCI, and CSCD) 7
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 SEP
Year Published 2012
Volume 68
Issue 1
Beginning Page 49
Ending Page 56
Digital Object Identifier (DOI) 10.1007/s10725-012-9692-4
Page Count 8
Web of Science Category Plant Sciences
Subject Category Plant Sciences
Document Delivery Number 985WR
Unique Article Identifier WOS:000307301700006
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. 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. 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