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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/22055

Title: Characterization of bacterial communities associated with Brassica napus L. growing on a Zn-contaminated soil and their effects on root growth
Authors: Montalban Gines, Blanca
Croes, Sarah
Weyens, Nele
Carmen Lobo, Ma
Perez-Sanz, Araceli
Vangronsveld, Jaco
Issue Date: 2016
Abstract: The interaction between plant growth-promoting bacteria (PGPB) and plants can enhance biomass production and metal tolerance of the host plants. This work aimed at isolating and characterizing the cultivable bacterial community associated with Brassica napus growing on a Zn-contaminated site, for selecting cultivable PGPB that might enhance biomass production and metal tolerance of energy crops. The effects of some of these bacterial strains on root growth of B. napus exposed to increasing Zn and Cd concentrations were assessed. A total of 426 morphologically different bacterial strains were isolated from the soil, the rhizosphere, and the roots and stems of B. napus. The diversity of the isolated bacterial populations was similar in rhizosphere and roots, but lower in soil and stem compartments. Burkoholderia, Alcaligenes, Agrococcus, Polaromonas, Stenotrophomonas, Serratia, Microbacterium, and Caulobacter were found as root endophytes exclusively. The inoculation of seeds with Pseudomonas sp. strains 228 and 256, and Serratia sp. strain 246 facilitated the root development of B. napus at 1,000 mu M Zn. Arthrobacter sp. strain 222, Serratia sp. strain 246, and Pseudomonas sp. 228 and 262 increased the root length at 300 mu M Cd.
Notes: [Montalban, Blanca; Carmen Lobo, Ma; Perez-Sanz, Araceli] Dept Invest Agroambiental, Madrid, Spain. [Montalban, Blanca; Croes, Sarah; Weyens, Nele; Vangronsveld, Jaco] Hasselt Univ, Ctr Environm Sci, Environm Biol, Diepenbeek, Belgium.
URI: http://hdl.handle.net/1942/22055
DOI: 10.1080/15226514.2016.1183566
ISI #: 000379591500005
ISSN: 1522-6514
Category: A1
Type: Journal Contribution
Validation: ecoom, 2017
Appears in Collections: Research publications

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