Loading content, please wait..
loading..
Logo
Version 3.20
or
Publication Type J
Authors Conesa, MA; Galmes, J
Author Full Name Conesa, M. A.; Galmes, J.
Title Photosynthesis response to severe water deficit in terminal stems of Myriolimon ferulaceum
Source PHOTOSYNTHETICA
Language English
Document Type Article
Author Keywords biomass; limitation analysis; rbcL; Rubisco kinetics; water consumption; water stress
Keywords Plus MESOPHYLL CONDUCTANCE; MEDITERRANEAN PLANTS; CO2 FIXATION; GAS-EXCHANGE; WHOLE-PLANT; LIMITATIONS; DROUGHT; LEAF; RUBISCO; STRESS
Abstract Myriolimon ferulaceum is a leafless species and close relative to Limonium inhabiting the same harsh environments in the rocky coast and salt marshes, with discontinuous distribution in western and central coast of the Mediterranean Basin and southern Iberian Peninsula. In order to test for the drought adaptive importance of photosynthesis in stems, and to decipher advantages and drawbacks of stem vs. leaf photosynthesis under drought conditions, M. ferulaceum was grown under the well-watered and severe water deficit conditions used in previous experiments with Limonium. Growth, stem anatomy, photosynthesis and gas exchange, and Rubisco-related traits were measured. Growth capacity in M. ferulaceum was higher than that of many Limonium under well-watered conditions, where limitations to photosynthesis were mostly biochemical. However, severe water deficit conditions had a higher impact in the leafless species, where the main photosynthesis limitation was stomatal conductance. High intrinsic water-use efficiency under well-watered conditions and high mesophyll conductance to stomatal conductance ratio under severe water deficit conditions were the main drivers of growth capacity in M. ferulaceum.
Author Address [Conesa, M. A.; Galmes, J.] Univ Illes Balears, INAGEA, Res Grp Plant Biol Mediterranean Condit, Ctra Valldemossa Km 7-5, Palma De Mallorca 07122, Balearic Island, Spain
Reprint Address Conesa, MA (reprint author), Univ Illes Balears, INAGEA, Res Grp Plant Biol Mediterranean Condit, Ctra Valldemossa Km 7-5, Palma De Mallorca 07122, Balearic Island, Spain.
E-mail Address ma.conesa@uib.es
Funding Agency and Grant Number Plan Nacional, Spain [AGL2009-07999]; UIB Experimental Field and Greenhouses [15/2015]
Funding Text This research was supported by the project AGL2009-07999 (Plan Nacional, Spain) awarded to JG. The authors thank Arantzazu Molins and Marcel Font for Rubisco kinetics and specificity factor measurement, respectively, and Miquel Truyols and collaborators of the UIB Experimental Field and Greenhouses (UIB Grant 15/2015) for their support. M. ferulaceum field pictures courtesy of Pere Fraga Arguimbau.
Cited Reference Count 47
Publisher ACAD SCIENCES CZECH REPUBLIC, INST EXPERIMENTAL BOTANY
Publisher City 6 PRAGUE
Publisher Address NA KARLOVCE 1A,, 6 PRAGUE, 160 00, CZECH REPUBLIC
ISSN 0300-3604
29-Character Source Abbreviation PHOTOSYNTHETICA
ISO Source Abbreviation Photosynthetica
Year Published 2019
Volume 57
Issue 4
Beginning Page 921
Ending Page 930
Digital Object Identifier (DOI) 10.32615/ps.2019.110
Page Count Plant Sciences
Web of Science Category Plant Sciences
Subject Category JJ2GN
Document Delivery Number WOS:000493979800003
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