Data/hora: 11/06/2024 16:00:16

Biblioteca(s): | Embrapa Arroz e Feijão.
Data corrente: | 27/12/2017
Data da última atualização: | 27/12/2017
Autoria: | NASCIMENTO, I. de O.; RODRIGUES, A. A. C.; MORAES, F. H.; SOUSA, F. A. de; FILIPPI, M. C. C. de; CATARINO, A. de M.
Afiliação: | IVANEIDE DE OLIVEIRA NASCIMENTO, MARANHAO STATE UNIVERSITY; ANTONIA ALICE COSTA RODRIGUES, MARANHAO STATE UNIVERSITY; FLAVIO HENRIQUE MORAES, UNICEUMA; FLAVIA ARRUDA DE SOUSA, MARANHAO STATE UNIVERSITY; MARTA CRISTINA CORSI DE FILIPPI, CNPAF; ARICLEIA DE MORAES CATARINO, MARANHAO STATE UNIVERSITY.
Título: | Isolation, identification and in vitro evaluation of Bacillus spp. in control of Magnaporthe oryzae comparing evaluation methods.
Ano de publicação: | 2016
Fonte/Imprenta: | African Journal of Agricultural Research, v. 11, n. 19, p. 1743-1749, May 2016.
ISSN: | 1991-637X
DOI: | 10.5897/AJAR2016.10931
Idioma: | Inglês
Conteúdo: | Environmentally friendly technologies, such as the use of bacteria (e.g. Bacillus spp.) to control fungal diseases of rice (Oryza sativa L.), represent a promising alternative for the sustainability of agricultural ecosystems. The present work aimed to isolate, identify, and evaluate (in vitro) various Bacillus spp. from the rice phylloplane for their potential to control the rice fungus Magnaporthe oryzae. Samples were taken from the phylloplane of healthy young rice plants growing in commercial fields in ten municipalities of Maranhão (Brazil), and Bacillus spp. were subsequently isolated and molecularly identified. Both experiments utilized a randomized design, and data were submitted to analysis of variance as well as means comparison by the Tukey test. Twelve bacterial isolates were obtained and identified. Using a control isolate (B25), four in vitro M. oryzae-inhibition methods were compared, with the ?circle? method ultimately providing the highest mycelium growth inhibition. The most promising experimental isolates for biological control were then identified as B. methylotrophicus isolates B41, B31, and B22, which achieved 90.41, 69.47, and 67.55% inhibition, respectively. This study demonstrates the potential of Maranhão Bacillus spp. isolates for use as biological fungal-control agents.
Thesagro: | Arroz; Brusone; Controle biológico; Doença de planta; Fungo; Oryza sativa.
Thesaurus Nal: | Biological control; Magnaporthe oryzae; Rice.
Categoria do assunto: | H Saúde e Patologia
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/169901/1/CNPAF-2017-ajar.pdf
Registro original: | Embrapa Arroz e Feijão (CNPAF)
Exemplares: | CNPAF - (35003-1) - UPC - AP - DD - 2016 -  - 2016 - DIS