𝘐𝘯 𝘷𝘪𝘵𝘳𝘰 SCREENING OF SUGARCANE (𝘚𝘢𝘤𝘤𝘩𝘢𝘳𝘶𝘮 𝘰𝘧𝘧𝘪𝘤𝘪𝘯𝘢𝘳𝘶𝘮 Linnaeus) ASSOCIATED RHIZOBACTERIA TO PLANT GROWTH PROMOTION

Yamina Coentro Montaldo, João Manoel da Silva, Paula Cibelly Vilela da Silva, Arthur Costa Pereira Santiago de Almeida, Jakes Halan de Queiroz Costa, Tania Marta Carvalho dos Santos

Resumo


The aimed of this study was to test in vitro four bacterial isolates (Bacillus megaterium, B. subtilis, B. pumilus, and Enterobacter cloaceae) with potential to plant growth promotion. The bacterial isolates were subjected to inorganic phosphate solubilization assay in liquid medium, exopolisacarídeos production and production of indole acetic acid (IAA) in vitro. The phosphorus solubilizing assay showed that B. megaterium is able to solubilizing phosphorus. Exopolysaccharides production test detected that B. megaterium and E. cloaceae are most efficient, and carbon source and pH were not dependent factors. The IAA production showed efficiency by E. cloaceae. These results proposed that bacterial isolates used in this study are applicable to inoculant production program and agricultural applicability.


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DOI: https://doi.org/10.37856/bja.v96i3.4291

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