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Publication Type J
Authors Brownstein, G; Wilson, JB; Burritt, DJ
Author Full Name Brownstein, Gretchen; Wilson, J. Bastow; Burritt, David J.
Title Waterlogging tolerance on a New Zealand saltmarsh
Source JOURNAL OF EXPERIMENTAL MARINE BIOLOGY AND ECOLOGY
Language English
Document Type Article
Author Keywords Enzymes; Plant ecology; Salinity; Saltmarsh; Tolerance; Waterlogging
Keywords Plus DETRENDED CORRESPONDENCE-ANALYSIS; ANAEROBIC METABOLISM; PLANT ZONATION; VEGETATION; SALINITY; OTAGO; RESPONSES; PATTERNS; ANOXIA; ROOTS
Abstract The importance of waterlogging in saltmarshes, and especially its role in small-scale patterning, are little known. A physiological/chorological approach was taken to investigate this in a New Zealand salt meadow. The effect of waterlogging on the activities of enzymes associated with anaerobic metabolism, especially alcohol dehydrogenase (ADH), was investigated in a greenhouse experiment with five representative salt meadow species: Puccinellia stricta, Isolepis cemua, Samolus repens, Selliera radicans and Triglochin striata. All species showed a significant increase in ADH activity in either shoots or roots in response to waterlogging. In P. stricta, sucrose synthase and four out of the five enzymes involved in fermentation increased under waterlogging. However, the photosynthetic efficiency (Fv/Fm) of the species did not change under this regime. The species composition gradient on the saltmarsh was related primarily to elevation, a proxy for water inundation, and the distribution of species along that gradient was related to their tolerance of waterlogging as measured by stimulation of ADH activity. However, the species-composition gradient was also related to water-ponding depressions, demonstrating the role of microtopography, with depression mimicking higher elevations, probably due to rainwater ponding. (C) 2013 Elsevier B.V. All rights reserved.
Author Address [Brownstein, Gretchen; Wilson, J. Bastow; Burritt, David J.] Univ Otago, Dept Bot, Dunedin, New Zealand
Reprint Address Wilson, JB (reprint author), Univ Otago, Dept Bot, POB 56, Dunedin, New Zealand.
E-mail Address bastow@bastow.ac.nz
ResearcherID Number Remy, Melanie/G-3598-2010
ORCID Number Remy, Melanie/0000-0002-3238-2125
Cited Reference Count 40
Times Cited 6
Total Times Cited Count (WoS, BCI, and CSCD) 7
Publisher ELSEVIER SCIENCE BV
Publisher City AMSTERDAM
Publisher Address PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
ISSN 0022-0981
29-Character Source Abbreviation J EXP MAR BIOL ECOL
ISO Source Abbreviation J. Exp. Mar. Biol. Ecol.
Publication Date AUG
Year Published 2013
Volume 446
Beginning Page 202
Ending Page 208
Digital Object Identifier (DOI) 10.1016/j.jembe.2013.05.025
Page Count 7
Web of Science Category Ecology; Marine & Freshwater Biology
Subject Category Environmental Sciences & Ecology; Marine & Freshwater Biology
Document Delivery Number 201JZ
Unique Article Identifier WOS:000323139200026
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