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Authors Rabhi, NEH; Silini, A; Cherif-Silini, H; Yahiaoui, B; Lekired, A; Robineau, M; Esmaeel, Q; Jacquard, C; Vaillant-Gaveau, N; Clement, C; Barka, EA; Sanchez, L
Author Full Name Rabhi, N. E. H.; Silini, A.; Cherif-Silini, H.; Yahiaoui, B.; Lekired, A.; Robineau, M.; Esmaeel, Q.; Jacquard, C.; Vaillant-Gaveau, N.; Clement, C.; Barka, E. Ait; Sanchez, L.
Title Pseudomonas knackmussii MLR6, a rhizospheric strain isolated from halophyte, enhances salt tolerance in Arabidopsis thaliana
Source JOURNAL OF APPLIED MICROBIOLOGY
Language English
Document Type Article
Author Keywords Arabidopsis thaliana; defence; halophyte; PGPR; photosynthesis; salt stress
Keywords Plus GROWTH-PROMOTING RHIZOBACTERIA; SALINITY TOLERANCE; CHLOROPHYLL FLUORESCENCE; ARACHIS-HYPOGAEA; QUANTUM YIELD; PLANTS; PHOTOSYNTHESIS; STRESS; PGPR; RESPONSES
Abstract Aims The study aimed for evaluate the efficacy of Pseudomonas knackmussiiMLR6 on growth promotion, photosynthetic responses, pigment contents and gene expression of the plant model Arabidopsis thaliana under NaCl stress. Methods and Results The strain MLR6 was isolated from the rhizopshere of the halophyte Salsola tetrandra collected from a natural saline Algerian soil. Results showed the ability of MLR6 to induce plant growth-promoting traits even under NaCl stress. The inoculation with MLR6 improved the stomatal conductance, the transpiration rate, the total chlorophyll and carotenoid contents under salt stress. It conferred also an increase in fresh/dry weight as well as plant height. MLR6 inoculation further provided a positive effect on cell membrane stability by reducing the electrolyte leakage and priming the ROS accumulation after the salt exposition. Additionally, the expression of NHX1, HKT1, SOS2 and SOS3 as well as SAG13 and PR1 was maintained in MLR6-bacterized plant at a similar level of controls. Conclusions The inoculation of A. thaliana with MLR6 improves plant growth and reduces damages caused by salt stress. Significance and Impact of the Study The use of P. knackmussiiMLR6 appears as a promising strategy to improve the sustainable agriculture under saline conditions.
Author Address [Rabhi, N. E. H.; Silini, A.; Cherif-Silini, H.; Yahiaoui, B.] Univ Ferhat Abbas, Fac Sci Nat & Vie, Lab Microbiol Appl, Dept Microbiol, Setif 1, Algeria; [Rabhi, N. E. H.; Robineau, M.; Esmaeel, Q.; Jacquard, C.; Vaillant-Gaveau, N.; Clement, C.; Barka, E. Ait; Sanchez, L.] Univ Reims, Unite Rech EA Resistance Induite & Bioprotect Pla, SFR Condorcet FR CNRS 3417, UFR Sci Exactes & Nat, Reims, France; [Lekired, A.] Univ Tunis El Manar, LMBA, Tunis, Tunisia
Reprint Address Sanchez, L (reprint author), Univ Reims, Unite Rech EA Resistance Induite & Bioprotect Pla, SFR Condorcet FR CNRS 3417, UFR Sci Exactes & Nat, Reims, France.
E-mail Address lisa.sanchez@univ-reims.fr
ResearcherID Number ESMAEEL, Qassim/U-1745-2018
ORCID Number ESMAEEL, Qassim/0000-0002-8085-0800; LEKIRED, Abdelmalek/0000-0001-7276-3785
Funding Agency and Grant Number Profas B+ program
Funding Text We acknowledge Annette Vergunst for kindly providing the plasmid pIN301. This work was supported by a grant provided by the Profas B+ program.
Times Cited 2
Total Times Cited Count (WoS, BCI, and CSCD) 2
Publisher WILEY
Publisher City HOBOKEN
Publisher Address 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
ISSN 1364-5072
29-Character Source Abbreviation J APPL MICROBIOL
ISO Source Abbreviation J. Appl. Microbiol.
Publication Date DEC
Year Published 2018
Volume 125
Issue 6
Beginning Page 1836
Ending Page 1851
Digital Object Identifier (DOI) 10.1111/jam.14082
Page Count 16
Web of Science Category Biotechnology & Applied Microbiology; Microbiology
Subject Category Biotechnology & Applied Microbiology; Microbiology
Document Delivery Number HA5RE
Unique Article Identifier WOS:000450333400022
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