Loading content, please wait..
loading..
Logo
Version 3.24
or
Publication Type J
Authors Rout, N. P. and B. P. Shaw
Title Salt tolerance in aquatic macrophytes: ionic relation and interaction
Source Biologia Plantarum
Author Keywords calcium protection; carotenoids; chlorophylls; Hydrilla verticillata; Najas gramenia; Najas indica; oxidative stress; seawater salinity; sodium chloride Salinity tolerance; accumulation; sodium; nacl; halophytes; mechanisms; proline; plants; stress
Abstract Effects of seawater salinity (SWS) and pure NaCl on the intracellular contents of Na+, K+, Mg2+, Ca2+, chlorophylls (Chl) and carotenoids (Car) were studied in three submerged aquatic macrophytes, Hydrilla verticillata, Najas indica and Najas gramenia, which differed in their tolerance to salinity. NaCl resulted in significant increase in Chl/Car ratio in the salt-sensitive H, verticillata and moderately salt-tolerant N. indica, but not in the salt-tolerant N. gramenia. SWS treatment did not result in any significant change in the ratio. The intracellular content of Na+ increased significantly in all the test plants upon exposure to both NaCl and SWS. The content of K+ decreased significantly in these plants upon salinity treatment, except in N. gramenia. The contents of Ca2+ and Mg2+ decreased significantly upon NaCl treatment and remained unchanged or increased upon SWS treatment. Nd relationship between salt tolerance and K+/Na+ ratio was observed. The maintenance of a minimal level of K+ was observed to be the most probable requirement of salt tolerance in aquatic macrophytes.
29-Character Source Abbreviation Biol. Plant.
Year Published 2001
Volume 44
Issue 1
Beginning Page 95-99
Unique Article Identifier ISI:000167732300016
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