Isolation and selection of plant growth-promoting bacteria associated with sugarcane
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Data
2016-05-30
Título da Revista
ISSN da Revista
Título de Volume
Editor
Evandro Novaes
Resumo
Microorganisms play a vital role in maintaining soil
fertility and plant health. They can act as biofertilizers and
increase the resistance to biotic and abiotic stress. This study
aimed at isolating and characterizing plant growth-promoting
bacteria associated with sugarcane, as well as assessing their
ability to promote plant growth. Endophytic bacteria from leaf,
stem, root and rhizosphere were isolated from the RB 867515
commercial sugarcane variety and screened for indole acetic
acid (IAA) production, ability to solubilize phosphate, fix
nitrogen and produce hydrogen cyanide (HCN), ammonia
and the enzymes pectinase, cellulase and chitinase. A total of
136 bacteria were isolated, with 83 of them presenting some
plant growth mechanism: 47 % phosphate solubilizers, 26 %
nitrogen fixers and 57 % producing IAA, 0.7 % HCN and
chitinase, 45 % ammonia, 30 % cellulose and 8 % pectinase.
The seven best isolates were tested for their ability to promote
plant growth in maize. The isolates tested for plant growth
promotion belong to the Enterobacteriaceae family and the
Klebsiella, Enterobacter and Pantoea genera. Five isolates
promoted plant growth in greenhouse experiments, showing
potential as biofertilizers.
Descrição
v. 46, n. 2, p. 149-158, apr./jun. 2016.
Palavras-chave
Zea mays L., Enterobacteriaceae, Klebsiella, Enterobacter, Pantoea
Citação
RODRIGUES, Ariana Alves; FORZANI, Marcus Vinicius; SOARES, Renan de Souza; SIBOV, Sergio Tadeu; VIEIRA, José Daniel Gonçalves. Isolation and selection of plant growth-promoting bacteria associated with sugarcane. Pesquisa Agropecuária Tropical, Goiânia, v. 46, n. 2, p. 149-158, abr./jun. 2016. Disponível em: < http://www.revistas.ufg.br/pat/article/view/39526/21201>.