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Publication Type J
Authors Navarro-Torre, S., E. Mateos-Naranjo, M. A. Caviedes, E. Pajuelo and I. D. Rodriguez-Llorente
Title Isolation of plant-growth-promoting and metal-resistant cultivable bacteria from Arthrocnemum macrostachyum in the Odiel marshes with potential use in phytoremediation
Source Marine Pollution Bulletin
Author Keywords Arthrocnemum macrostachyum Contaminated marshes PGPB Microbe-assisted phytoremediation Heavy metals endophytic bacteria heavy-metals salt-marsh spartina-maritima mine tailings rhizosphere rhizobacteria spain accumulation soils
Abstract Arthrocnemum macrostachyum is a halophyte naturally growing in southwest coasts of Spain that can tolerate and accumulate heavy metals. A total of 48 bacteria (30 endophytes and 18 from the rhizosphere) were isolated from A. macrostachyum growing in the Odiel River marshes, an ecosystem with high levels of contamination. All the isolates exhibited plant-growth-promoting (PGP) properties and most of them were multiresistant to heavy metals. Although the presence of heavy metals reduced the capability of the isolates to exhibit PGP properties, several strains were able to maintain their properties or even enhance them in the presence of concrete metals. Two bacterial consortia with the best-performing endophytic or rhizospheric strains were selected for further experiments. Bacterial inoculation accelerated germination of A. macrostachyum seeds in both the absence and presence of heavy metals. These results suggest that inoculation of A. macrostachyum with the selected bacteria could ameliorate plant establishment and growth in contaminated marshes. (C) 2016 Elsevier Ltd. All rights reserved.
Author Address [Navarro-Torre, S.; Caviedes, M. A.; Pajuelo, E.; Rodriguez-Llorente, I. D.] Univ Seville, Fac Farm, Dept Microbiol, C Prof Garcia Gonzalez 2, E-41012 Seville, Spain. [Mateos-Naranjo, E.] Univ Seville, Fac Biol, Dept Biol Vegetal & Ecol, E-41012 Seville, Spain. Rodriguez-Llorente, ID (reprint author), Univ Seville, Fac Farm, Dept Microbiol & Parasitol, C Prof Garcia Gonzalez 2, E-41012 Seville, Spain. irodri@us.es
ISSN 0025-326X
ISBN 0025-326X
29-Character Source Abbreviation Mar. Pollut. Bull.
Publication Date Sep
Year Published 2016
Volume 110
Issue 1
Beginning Page 133-142
Digital Object Identifier (DOI) 10.1016/j.marpolbul.2016.06.070
Unique Article Identifier WOS:000382339900026
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