Data/hora: 11/06/2024 08:48:58

Provedor de dados: | 90
País: | Brazil
Título: | Isolation and characterization of two plant growth-promoting bacteria from the rhizoplane of a legume (Lupinus albescens) in sandy soil
Autores: | Giongo,Adriana; Beneduzi,Anelise; Ambrosini,Adriana; Vargas,Luciano Kayser; Stroschein,Marcos Roberto; Eltz,Flávio Luiz; Bodanese-Zanettini,Maria Helena; Passaglia,Luciane Maria Pereira.
Data: | 2010-04-01
Ano: | 2010
Palavras-chave: | Indolic compounds; Siderophores; Inoculation experiment.
Resumo: | Two bacterial strains that amplified part of the nifH gene, RP1p and RP2p, belonging to the genus Enterobacter and Serratia, were isolated from the rhizoplane of Lupinus albescens. These bacteria are Gram-negative, rod-shaped, motile, facultative anaerobic, and fast-growing; the colonies reach diameters of 3-4 mm within 24 h of incubation at 28 ºC. The bacteria were also able to grow at temperatures as high as 40 ºC, in the presence of high (2-3 % w/v) NaCl concentrations and pH 4 -10. Strain RP1p was able to utilize 10 of 14 C sources, while RP2p utilized nine. The isolates produced siderophores and indolic compounds, but none of them was able to solubilize phosphate. Inoculation of L. albescens with RP1p and RP2p strains resulted in a significant increase in plant dry matter, indicating the plant-growth-promoting abilities of these bacteria.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832010000200009
Editor: | Sociedade Brasileira de Ciência do Solo
Relação: | 10.1590/S0100-06832010000200009
Formato: | text/html
Fonte: | Revista Brasileira de Ciência do Solo  v.34 n.2 2010
Fonte: | info:eu-repo/semantics/openAccess