Solubilization of Al- and Fe-phosphates by bacteria isolated from the rhizosphere of Theobroma grandiflorum (Willd. ex Spreng.) Schum.

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dc.contributorUniversity of Hamburg
dc.contributorJOSE PEREIRA DA SILVA JUNIOR, CPAA.
dc.creatorMARINO, W. T.
dc.creatorSILVA JUNIOR, J. P. da
dc.creatorMARSCHNER, P.
dc.creatorLIEBEREI, R.
dc.date2014-12-12T08:17:05Z
dc.date2014-12-12T08:17:05Z
dc.date1999-09-29
dc.date1998
dc.date2018-08-13T11:11:11Z
dc.date.accessioned2026-06-30T23:20:06Z
dc.descriptionOne hyndred sixty-eight bacterial isolates from the rhizoplane and rhizosphere (2mm-10mm away from the root surface) of cupuacu were isolated in spring 1997 in an experimental polyculture site (SHIFT ENV-23) near Manaus and their capacity to grow on media with poorly soluble AlPO4 was determined. 75% of the isolated bacteria were found to be effective in solubilizing hardly-soluble AlPO4 and FePO4. Two strains were selected because of their ability to solubilize high amounts (>50ug P/ml) of AlPO4 and FePO4 in former experiments. Their capacity to solubilize inorganic phosphates was investigated in liquid culture. Both strains solubilized similar amounts of P. The amount of P solubilization was highest after three days of growth while cell numbers were maximal after 13 days. During the solubilization process one strain show a decrease in pH while the other strain increased the pH. This incates that the solubilization of inorganic phosphates is not necessarily related to the acidification.
dc.formatp. 341-349.
dc.identifierIn: SHIFT-WORKSHOP, 3., 1998, Manaus. Proceedings... Bonn: BMBF, 1998.
dc.identifierhttp://www.alice.cnptia.embrapa.br/alice/handle/doc/668385
dc.identifier.urihttp://hdl.handle.net/123456789/379281
dc.languageeng
dc.rightsopenAccess
dc.subjectAgrofloresta
dc.subjectBrasil
dc.subjectAmazonas
dc.subjectManaus
dc.subjectBactéria
dc.subjectCultivo Multiplo
dc.subjectCupuaçu
dc.subjectRizosfera
dc.subjectTheobroma Grandiflorum
dc.subjectagroforestry
dc.subjectmultiple cropping
dc.titleSolubilization of Al- and Fe-phosphates by bacteria isolated from the rhizosphere of Theobroma grandiflorum (Willd. ex Spreng.) Schum.
dc.typeArtigo em anais e proceedings

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