Use este identificador para citar ou linkar para este item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/942700
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dc.contributor.authorCOSTA, F. E. C.pt_BR
dc.contributor.authorMELO, I. S. dept_BR
dc.date.accessioned2012-12-14T11:11:11Zpt_BR
dc.date.available2012-12-14T11:11:11Zpt_BR
dc.date.created2012-12-14pt_BR
dc.date.issued2012pt_BR
dc.identifier.citationAfrican Journal of Microbiology Research, v. 6, n. 6, p. 1345-1353, 2012.pt_BR
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/942700pt_BR
dc.descriptionABSTRACT: Studies on the biodiversity of plants associated microorganisms play an important role in food production. Ficus-tree, Opuntia ficus-indica Mill, are cultivated in many nations worldwide intercropping with other cultures, like cowpea, Vigna unguiculata (L.) Walp. The objectives of this study were to isolate and determine the diversity of bacterial endophytes and rhizobacteria in cacti and their ability to solubilize phosphate, the nif presence, their ability to produce indole-acetic acid (IAA) and verify their efficacy to promote plant growth in cowpea plants. Bacteria were isolated from rhizospheric soils, from surface- sterilized stems and roots of plants collected in Brazil, in nitrogen- free medium, and identified through fatty acid analysis. Gram-negative bacteria comprised 63% of endophytic bacteria and 80% of rhizobacteria. Only 13% showed amplification of nifH gene. From the 68 bacterial strains, associated with cacti, 18% produced IAA, and the best results were observed in Agrobacterium radiobacter, Klebsiella trevisanii, Enterobacter agglomerans and Paracoccus denitrificans. Phosphate solubilization was observed in 6% of strains. None of the strains inoculated in cowpea plants promoted stem and foliar growth. Four percent of strains showed ability to increase the root dry matter compared to the control group (inoculated with a pool of indigenous semi-arid Rhizobium).pt_BR
dc.language.isoengeng
dc.rightsopenAccesseng
dc.subjectPhosphate solubilizationpt_BR
dc.subjectFeijão caupipt_BR
dc.subjectNdole acetic acidpt_BR
dc.titleEndophytic and rhizospheric bacteria from Opuntia ficus-indica mill and their ability to promote plant growth in cowpea, Vigna unguiculata (L.) Walp.pt_BR
dc.typeArtigo de periódicopt_BR
dc.date.updated2012-12-14T11:11:11Zpt_BR
dc.subject.thesagroCactopt_BR
dc.subject.thesagroBactériapt_BR
dc.subject.thesagroRizosferapt_BR
dc.subject.thesagroRegulador de crescimentopt_BR
dc.subject.thesagroEstimulante de crescimento vegetalpt_BR
dc.subject.thesagroFeijão de cordapt_BR
dc.subject.thesagroVigna Unguiculatapt_BR
dc.subject.nalthesaurusEndophytespt_BR
dc.subject.nalthesaurusCacti and succulentspt_BR
dc.subject.nalthesaurusGrowth promotionpt_BR
dc.subject.nalthesaurusOpuntia ficus-indicapt_BR
dc.subject.nalthesaurusrhizospherept_BR
riaa.ainfo.id942700pt_BR
riaa.ainfo.lastupdate2012-12-14pt_BR
dc.contributor.institutionFRANCISCO EDUARDO DE CARVALHO COSTA; ITAMAR SOARES DE MELO, CNPMA.pt_BR
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