Please use this identifier to cite or link to this item:
|metadata.artigo.dc.title:||Leguminosae native nodulating bacteria from a gold mine As-contaminated soil: multi-resistance to trace elements, and possible role in plant growth and mineral nutrition|
|metadata.artigo.dc.creator:||Rangel, Wesley de M.|
Longatti, Silvia M. de Oliveira
Ferreira, Paulo A. A.
Bonaldi, D. S.
Guimarães, Amanda A.
Moreira, Fatima M. S.
Biological nitrogen fixation
Trace elements multi-resistance
β-lactam antibiotics resistance
Promoção de crescimento de plantas
Fixação biológica de nitrogênio
Elementos traço multi-resistência
Resistência aos antibióticos β-lactâmicos
|metadata.artigo.dc.publisher:||Taylor & Francis|
|metadata.artigo.dc.identifier.citation:||RANGEL, W. de M. et al. Leguminosae native nodulating bacteria from a gold mine As-contaminated soil: multi-resistance to trace elements, and possible role in plant growth and mineral nutrition. International Journal of Phytoremediation, Philadelphia, v. 19, n. 10, p. 925-936, 2017.|
|metadata.artigo.dc.description.abstract:||Efficient N2-fixing Leguminosae nodulating bacteria resistant to As may facilitate plant growth on As-contaminated sites. In order to identify bacteria holding these features, 24 strains were isolated from nodules of the trap species Crotalaria spectabilis (12) and Stizolobium aterrimum (12) growing on an As-contaminated gold mine site. 16S rRNA gene sequencing revealed that most of the strains belonged to the group of α-Proteobacteria, being representatives of the genera Bradyrhizobium, Rhizobium, Inquilinus, Labrys, Bosea, Starkeya, and Methylobacterium. Strains of the first four genera showed symbiotic efficiency with their original host, and demonstrated in vitro specific plant-growth-promoting (PGP) traits (production of organic acids, indole-3-acetic-acid and siderophores, 1-aminocyclopropane-1-carboxylate deaminase activity, and Ca3(PO4)2 solubilization), and increased resistance to As, Zn, and Cd. In addition, these strains and some type and reference rhizobia strains exhibited a wide resistance spectrum to β-lactam antibiotics. Both intrinsic PGP abilities and multi-element resistance of rhizobia are promising for exploiting the symbiosis with different legume plants on trace-element-contaminated soils.|
|Appears in Collections:||DCS - Artigos publicados em periódicos|
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.