Diversity of propanil-degrading bacteria isolated from rice rhizosphere and their potential for plant growth promotion.

Abstract: The herbicide propanil has long been used in rice production in southern Brazil. Bacteria isolated from contaminated soils in Massaranduba, Santa Catarina, Brazil, were found to be able to grow in the presence of propanil, using this compound as a carbon source. Thirty strains were identif...

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Autores: PROCOPIO, A. R. L., PROCOPIO, R. E. L., PIZZIRANI-KLEINER, A. A., MELO, I. S. de
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2012
País:Brasil
Institución:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
Repositorio:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
Idioma:portugués
OAI Identifier:oai:www.alice.cnptia.embrapa.br:doc/937044
Acceso en línea:http://www.alice.cnptia.embrapa.br/alice/handle/doc/937044
Access Level:acceso abierto
Palabra clave:Propanil
Pseudomonas
biodegradation
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spelling Diversity of propanil-degrading bacteria isolated from rice rhizosphere and their potential for plant growth promotion.PropanilPseudomonasbiodegradationAbstract: The herbicide propanil has long been used in rice production in southern Brazil. Bacteria isolated from contaminated soils in Massaranduba, Santa Catarina, Brazil, were found to be able to grow in the presence of propanil, using this compound as a carbon source. Thirty strains were identified as Pseudomonas (86.7%), Serratia (10.0%), and Acinetobacter (3.3%), based on phylogenetic analysis of 16S rDNA. Little genetic diversity was found within species, more than 95% homology, suggesting that there is selective pressure to metabolize propanil in the microbial community. Two strains of Pseudomonas (AF7 and AF1) were selected in bioreactor containing chemotactic growth medium, with the highest degradation activity of propanil exhibited by strain AF7, followed by AF1 (60 and 40%, respectively). These strains when encapsulated in alginate exhibited a high survival rate and were able to colonize the rice root surfaces. Inoculation with Pseudomonas strains AF7 and AF1 significantly improved the plant height of rice. Most of the Pseudomonas strains produced indoleacetic acid, soluble mineral phosphate, and fixed nitrogen. These bacterial strains could potentially be used for the bioremediation of propanil-contaminated soils and the promotion of plant growth.ALDO DE LIMA RODRIGUES PROCÓPIO, UEA; RUDI EMERSON DE LIMA PROCOPIO, ESALQ-USP; ALINE APARECIDA PIZZIRANI-KLEINER, ESALQ-USP.2012-10-17T11:11:11Z2012-10-17T11:11:11Z2012-10-1720122012-10-17T11:11:11Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleGenetics and Molecular Research, Ribeirão Preto, v. 11, n. 3, p. 2021-2034, 2012.http://www.alice.cnptia.embrapa.br/alice/handle/doc/937044porinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAPROCOPIO, A. R. L.PROCOPIO, R. E. L.PIZZIRANI-KLEINER, A. A.MELO, I. S. de2017-08-15T23:08:09Zoai:www.alice.cnptia.embrapa.br:doc/937044Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542017-08-15T23:08:09Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Diversity of propanil-degrading bacteria isolated from rice rhizosphere and their potential for plant growth promotion.
title Diversity of propanil-degrading bacteria isolated from rice rhizosphere and their potential for plant growth promotion.
spellingShingle Diversity of propanil-degrading bacteria isolated from rice rhizosphere and their potential for plant growth promotion.
PROCOPIO, A. R. L.
Propanil
Pseudomonas
biodegradation
title_short Diversity of propanil-degrading bacteria isolated from rice rhizosphere and their potential for plant growth promotion.
title_full Diversity of propanil-degrading bacteria isolated from rice rhizosphere and their potential for plant growth promotion.
title_fullStr Diversity of propanil-degrading bacteria isolated from rice rhizosphere and their potential for plant growth promotion.
title_full_unstemmed Diversity of propanil-degrading bacteria isolated from rice rhizosphere and their potential for plant growth promotion.
title_sort Diversity of propanil-degrading bacteria isolated from rice rhizosphere and their potential for plant growth promotion.
dc.creator.none.fl_str_mv PROCOPIO, A. R. L.
PROCOPIO, R. E. L.
PIZZIRANI-KLEINER, A. A.
MELO, I. S. de
author PROCOPIO, A. R. L.
author_facet PROCOPIO, A. R. L.
PROCOPIO, R. E. L.
PIZZIRANI-KLEINER, A. A.
MELO, I. S. de
author_role author
author2 PROCOPIO, R. E. L.
PIZZIRANI-KLEINER, A. A.
MELO, I. S. de
author2_role author
author
author
dc.contributor.none.fl_str_mv ALDO DE LIMA RODRIGUES PROCÓPIO, UEA; RUDI EMERSON DE LIMA PROCOPIO, ESALQ-USP; ALINE APARECIDA PIZZIRANI-KLEINER, ESALQ-USP.
dc.subject.por.fl_str_mv Propanil
Pseudomonas
biodegradation
topic Propanil
Pseudomonas
biodegradation
description Abstract: The herbicide propanil has long been used in rice production in southern Brazil. Bacteria isolated from contaminated soils in Massaranduba, Santa Catarina, Brazil, were found to be able to grow in the presence of propanil, using this compound as a carbon source. Thirty strains were identified as Pseudomonas (86.7%), Serratia (10.0%), and Acinetobacter (3.3%), based on phylogenetic analysis of 16S rDNA. Little genetic diversity was found within species, more than 95% homology, suggesting that there is selective pressure to metabolize propanil in the microbial community. Two strains of Pseudomonas (AF7 and AF1) were selected in bioreactor containing chemotactic growth medium, with the highest degradation activity of propanil exhibited by strain AF7, followed by AF1 (60 and 40%, respectively). These strains when encapsulated in alginate exhibited a high survival rate and were able to colonize the rice root surfaces. Inoculation with Pseudomonas strains AF7 and AF1 significantly improved the plant height of rice. Most of the Pseudomonas strains produced indoleacetic acid, soluble mineral phosphate, and fixed nitrogen. These bacterial strains could potentially be used for the bioremediation of propanil-contaminated soils and the promotion of plant growth.
publishDate 2012
dc.date.none.fl_str_mv 2012-10-17T11:11:11Z
2012-10-17T11:11:11Z
2012-10-17
2012
2012-10-17T11:11:11Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv Genetics and Molecular Research, Ribeirão Preto, v. 11, n. 3, p. 2021-2034, 2012.
http://www.alice.cnptia.embrapa.br/alice/handle/doc/937044
identifier_str_mv Genetics and Molecular Research, Ribeirão Preto, v. 11, n. 3, p. 2021-2034, 2012.
url http://www.alice.cnptia.embrapa.br/alice/handle/doc/937044
dc.language.iso.fl_str_mv por
language por
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv reponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
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repository.name.fl_str_mv Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
repository.mail.fl_str_mv cg-riaa@embrapa.br
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