Artigo

Production of indole-3-acetic acid by bacillus isolated from different soils

Bacillus sp. can be found in different environments, produce endospores and being known as Plant Growth Promoting. The aim of this study was to evaluate the ability of Bacillus thuringiensis and Bacillus cereus isolated from soil samples from various regions in the State of Tocantins, in the product...

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Autor principal: Chagas Junior, Aloisio Freitas
Outros Autores: Oliveira, AriáDila GonçAlves de, Oliveira, Luiz Antonio de, Santos, G. R., Chagas, Lillian França Borges, Silva, André Luís Lopes da, Costa, Jefferson da Luz
Grau: Artigo
Idioma: English
Publicado em: Bulgarian Journal of Agricultural Science 2020
Acesso em linha: https://repositorio.inpa.gov.br/handle/1/17532
id oai:repositorio:1-17532
recordtype dspace
spelling oai:repositorio:1-17532 Production of indole-3-acetic acid by bacillus isolated from different soils Chagas Junior, Aloisio Freitas Oliveira, AriáDila GonçAlves de Oliveira, Luiz Antonio de Santos, G. R. Chagas, Lillian França Borges Silva, André Luís Lopes da Costa, Jefferson da Luz Bacillus sp. can be found in different environments, produce endospores and being known as Plant Growth Promoting. The aim of this study was to evaluate the ability of Bacillus thuringiensis and Bacillus cereus isolated from soil samples from various regions in the State of Tocantins, in the production of auxin. Both in the absence and in the presence of L-tryptophan all bacteria tested produced auxin. The production of auxin increased with the increasing of the concentrations of L-tryptophan, especially the isolates UFT Bt 07, UFT Bc 19 and UFT Bc 20, which presented the highest levels of production. Twenty isolates, 12 (60%) had concentrations of auxin more than 100 μg mL-1. For most of the isolates the increased production of auxin occurred with 48 hours of bacterial growth. Bacilli tested have great ability to biosynthesize auxin from tryptophan as a precursor; can be considered as probable growth promoters of plant. © 2015, National Centre for Agrarian Sciences. All Rights reserved. 2020-06-15T21:48:12Z 2020-06-15T21:48:12Z 2015 Artigo https://repositorio.inpa.gov.br/handle/1/17532 en Volume 21, Número 2, Pags. 282-287 Restrito Bulgarian Journal of Agricultural Science
institution Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional
collection INPA-RI
language English
description Bacillus sp. can be found in different environments, produce endospores and being known as Plant Growth Promoting. The aim of this study was to evaluate the ability of Bacillus thuringiensis and Bacillus cereus isolated from soil samples from various regions in the State of Tocantins, in the production of auxin. Both in the absence and in the presence of L-tryptophan all bacteria tested produced auxin. The production of auxin increased with the increasing of the concentrations of L-tryptophan, especially the isolates UFT Bt 07, UFT Bc 19 and UFT Bc 20, which presented the highest levels of production. Twenty isolates, 12 (60%) had concentrations of auxin more than 100 μg mL-1. For most of the isolates the increased production of auxin occurred with 48 hours of bacterial growth. Bacilli tested have great ability to biosynthesize auxin from tryptophan as a precursor; can be considered as probable growth promoters of plant. © 2015, National Centre for Agrarian Sciences. All Rights reserved.
format Artigo
author Chagas Junior, Aloisio Freitas
spellingShingle Chagas Junior, Aloisio Freitas
Production of indole-3-acetic acid by bacillus isolated from different soils
author2 Oliveira, AriáDila GonçAlves de
Oliveira, Luiz Antonio de
Santos, G. R.
Chagas, Lillian França Borges
Silva, André Luís Lopes da
Costa, Jefferson da Luz
author2Str Oliveira, AriáDila GonçAlves de
Oliveira, Luiz Antonio de
Santos, G. R.
Chagas, Lillian França Borges
Silva, André Luís Lopes da
Costa, Jefferson da Luz
title Production of indole-3-acetic acid by bacillus isolated from different soils
title_short Production of indole-3-acetic acid by bacillus isolated from different soils
title_full Production of indole-3-acetic acid by bacillus isolated from different soils
title_fullStr Production of indole-3-acetic acid by bacillus isolated from different soils
title_full_unstemmed Production of indole-3-acetic acid by bacillus isolated from different soils
title_sort production of indole-3-acetic acid by bacillus isolated from different soils
publisher Bulgarian Journal of Agricultural Science
publishDate 2020
url https://repositorio.inpa.gov.br/handle/1/17532
_version_ 1787145425400102912
score 11.755432

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