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Authors Garrote-Moreno, A; Cambridge, M; Sanchez-Lizaso, JL
Author Full Name Garrote-Moreno, Aurora; Cambridge, Marion; Luis Sanchez-Lizaso, Jose
Title Ion concentrations in seagrass: A comparison of results from field and controlled-environment studies
Source ESTUARINE COASTAL AND SHELF SCIENCE
Language English
Document Type Article
Author Keywords Ions concentrations; Posidonia australis; Posidonia sinuosa; Amphibolis antarctica; Amphibolis griffithii
Keywords Plus ANTARCTICA LABILL SONDER; POSIDONIA-OCEANICA; HYPERSALINE STRESS; CYMODOCEA-NODOSA; AMPHIBOLIS-ANTARCTICA; WESTERN-AUSTRALIA; WATER RELATIONS; ZOSTERA-MARINA; SHARK BAY; TEMPERATURE RESPONSES
Abstract Osmoregulation is essential for the survival of seagrasses in marine and hypersaline environments. The aim of this study was to examine ion concentrations of four seagrass species (Posidonia australis, P. sinuosa, Amphibolis antarctica and A. griffithii) after exposure to salinity changes. Plant fragments were placed in a series of aquaria at marine salinity (35) and, after one week of acclimation, exposed for 7 days to salinities between 20 and 70. Cl-, Na+ and total ion concentration increased with salinity in leaf tissue of the four seagrasses species. These results were compared with those of P. australis and A. antarctica samples collected at three locations at Shark Bay, Western Australia where higher salinities occurred, ranging from 46 to 51. Concentrations of K+ and Ca+2 were higher in seagrass tissues from Shark Bay than in those in aquarium trials. CI-, Na+ and total ions in P. australis and A. antarctica from Shark Bay were lowest at the highest salinity location. The K+/Na+ ratio in the aquarium trials (under ambient conditions) was in the following order: A. antarctica = A. griffithii > P. australis > P. sinuosa and Ca+2/Na+ ratio was: A. antarctica = A. griffithii > P. sinuosa > P. australis. This species order indicates a physiological capacity to tolerate variation in salinity. Furthermore, these ratios were higher in the locality with highest salinity in Shark Bay, indicating acclimation and adaptation of ion concentrations to the salinity regime in the environment. (C) 2016 Elsevier Ltd. All rights reserved.
Author Address [Garrote-Moreno, Aurora; Luis Sanchez-Lizaso, Jose] Univ Alicante, Dept Ciencias Mar & Biol Aplicada, Apdo 99, E-03080 Alicante, Spain; [Garrote-Moreno, Aurora; Cambridge, Marion] Univ Western Australia, UWA Oceans Inst, 35 Stirling Highway, Crawley, WA 6009, Australia; [Garrote-Moreno, Aurora; Cambridge, Marion] Univ Western Australia, Sch Plant Biol M470, 35 Stirling Highway, Crawley, WA 6009, Australia
Reprint Address Garrote-Moreno, A (corresponding author), Univ Alicante, Dept Ciencias Mar & Biol Aplicada, Apdo 99, E-03080 Alicante, Spain.
E-mail Address aurora.garrote@ua.es
ResearcherID Number Cambridge, Marion L/G-4982-2011; Lizaso, Jose Luis L Sanchez/J-4939-2017; Cambridge, Marion/S-1977-2019
ORCID Number Cambridge, Marion L/0000-0003-2781-4429; Lizaso, Jose Luis L Sanchez/0000-0002-3927-5699;
Funding Agency and Grant Number Universidad de Alicante
Funding Text We thank Maryann Evetts for her support and assistance during this project, Renae Hovey, Andrea Zavala Perez at UWA for field and technical assistance during collection and experiments. A.G. was supported by an FPI grant from Universidad de Alicante.
Times Cited 4
Total Times Cited Count (WoS, BCI, and CSCD) 4
Publisher ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
Publisher City LONDON
Publisher Address 24-28 OVAL RD, LONDON NW1 7DX, ENGLAND
ISSN 0272-7714
29-Character Source Abbreviation ESTUAR COAST SHELF S
ISO Source Abbreviation Estuar. Coast. Shelf Sci.
Publication Date NOV 5
Year Published 2016
Volume 181
Beginning Page 209
Ending Page 217
Digital Object Identifier (DOI) 10.1016/j.ecss.2016.08.034
Page Count 9
Web of Science Category Marine & Freshwater Biology; Oceanography
Subject Category Marine & Freshwater Biology; Oceanography
Document Delivery Number EA2EV
Unique Article Identifier WOS:000386406500020
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