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Authors Hidri, R; Barea, JM; Metoui-Ben Mahmoud, O; Abdelly, C; Azcon, R
Author Full Name Hidri, R.; Barea, J. M.; Metoui-Ben Mahmoud, O.; Abdelly, C.; Azcon, Rosario
Title Impact of microbial inoculation on biomass accumulation by Sulla carnosa provenances, and in regulating nutrition, physiological and antioxidant activities of this species under non-saline and saline conditions
Source JOURNAL OF PLANT PHYSIOLOGY
Language English
Document Type Article
Author Keywords Bacillus sp.; Pseudomonas sp.; Rhizophagus intraradices; Sulla carnosa provenances; Saline stress alleviation; Phytodesalination
Keywords Plus ARBUSCULAR MYCORRHIZAL FUNGI; PLANT-GROWTH; ASCORBATE PEROXIDASE; DROUGHT STRESS; TOBACCO PLANTS; PHOTOSYNTHETIC EFFICIENCY; GLYCINE BETAINE; GENE-EXPRESSION; SALT TOLERANCE; WATER-STRESS
Abstract Bacteria (Pseudomonas sp. and Bacillus sp.) and/or the arbuscular mycorrhizal (AM) fungus Rhizophagus intraradices were able to improve growth, physiological and biochemical characteristics of four Sulla carnosa Desf. provenances (Sidi khlif, Thelja, Kalbia and Kerker) from Tunisia under both saline and non saline conditions. S. carnosa is a salt-tolerant legume plant, native from North Africa. The intrinsic bacterial characteristics evidenced the fitness of these bacteria to support salt stress and to stimulate plant growth. Bacillus sp. produced more indol acetic acid (IAA) than Pseudomonas sp. and showed a great surviving capacity under salt conditions supporting its capacity to improve plant growth under stress conditions. The microorganisms applied also have a different potential to increase the nutritional and related plant growth parameters. It is noticeable that some provenances reached the highest level of growth when inoculated with Bacillus sp. in Sidi khlifor by Bacillus plus AMF in Kalbia, which increased shoot by 318% and root by 774%. In contrast, in Thelja and Kerker the impact of the test microorganisms was mainly evidenced at increasing nutritional and physiological functions. Salinity reduced some growth and physiological variables as stomatal conductance, photosynthetic pigments and photosynthetic efficiency and increased electrolyte leakage. However, the microbial inoculants compensated these detrimental effects in a degree depending on the S. carnosa provenance. These microorganisms also orchestrate antioxidant activities involved in adaptative responses in S. carnosa provenances. The intrinsic ability of inoculants allow us to select the provenance/microorganism combination which maximizes S. carnosa growth, nutrition and physiological/biochemical responses under salt and non-salt conditions. The results obtained support that the target microbial inocula are beneficial for the ecological stability if this Mediterranean legume. (C) 2016 Elsevier GmbH. All rights reserved.
Author Address [Hidri, R.; Metoui-Ben Mahmoud, O.; Abdelly, C.] Biotechnol Ctr Borj Cedria, Lab Extremophile Plants, Tunis, Tunisia; [Barea, J. M.; Azcon, Rosario] CSIC, Estn Expt Zaidin, Dept Microbiol Suelo & Sistemas Simbiot, Albareda 1, E-18008 Granada, Spain
Reprint Address Azcon, R (corresponding author), CSIC, Estn Expt Zaidin, Dept Microbiol Suelo & Sistemas Simbiot, Albareda 1, E-18008 Granada, Spain.
E-mail Address rosario.azcon@eez.csic.es
ResearcherID Number Barea, Jose Miguel/H-5893-2015; Azcon, Rosario/H-5240-2015
ORCID Number Barea, Jose Miguel/0000-0001-5021-4718; Azcon, Rosario/0000-0003-4568-4090
Funding Agency and Grant Number Ministerio de Economia y Competitividad (Spain) [AGL-2009-12530-C02-02]; Tunisian Ministry of Higher Education and Scientific Research [LR10CBBC02]
Funding Text This work was carried out in the framework of project AGL-2009-12530-C02-02 from Ministerio de Economia y Competitividad (Spain). Hidri Rabaa was financed by the Tunisian Ministry of Higher Education and Scientific Research (LR10CBBC02), for a stay at the Departamento de Microbiologia del Suelo y Sistemas Simbioticos, Estacion Experimental del Zaidin, CSIC, Granada, Spain.
Times Cited 28
Total Times Cited Count (WoS, BCI, and CSCD) 29
Publisher ELSEVIER GMBH
Publisher City MUNICH
Publisher Address HACKERBRUCKE 6, 80335 MUNICH, GERMANY
ISSN 0176-1617
29-Character Source Abbreviation J PLANT PHYSIOL
ISO Source Abbreviation J. Plant Physiol.
Publication Date AUG 20
Year Published 2016
Volume 201
Beginning Page 28
Ending Page 41
Digital Object Identifier (DOI) 10.1016/j.jplph.2016.06.013
Page Count 14
Web of Science Category Plant Sciences
Subject Category Plant Sciences
Document Delivery Number DU4QE
Unique Article Identifier WOS:000382196800004
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