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dc.creatorPereira, Gilberto Vinícius de Melo-
dc.creatorMagalhães, Karina Teixeira-
dc.creatorLorenzetii, Emi Rainildes-
dc.creatorSouza, Thiago Pereira-
dc.creatorSchwan, Rosane Freitas-
dc.date.accessioned2020-05-07T10:40:54Z-
dc.date.available2020-05-07T10:40:54Z-
dc.date.issued2011-08-
dc.identifier.citationPEREIRA, G. V. de M. et al. A multiphasic approach for the identification of endophytic bacterial in strawberry fruit and their potential for plant growth promotion. Microbial Ecology, [S.l.], v 63, p. 405-417, Aug. 2011. DOI: 10.1007/s00248-011-9919-3.pt_BR
dc.identifier.urihttps://link.springer.com/article/10.1007/s00248-011-9919-3pt_BR
dc.identifier.urihttp://repositorio.ufla.br/jspui/handle/1/40660-
dc.description.abstractThis study used a multiphasic approach, characterized by the simultaneous use of culture-dependent and culture-independent methods, to investigate endophytic bacterial communities in strawberry (Fragaria ananassa) fruit. A total of 92 bacterial endophytes were isolated and initially grouped by their repetitive extragenic palindromic (rep)-PCR banding pattern and biochemical features. Phylogenetic analysis of the 16S rRNA gene sequences of 45 representatives showed that the isolates belonged to the species Bacillus subtilis (eight isolates), Bacillus sp. (seven isolates), Enterobacter sp. (seven isolates), Enterobacter ludwigii (six isolates), Lactobacillus plantarum (six isolates), Pseudomonas sp. (five isolates), Pantoea punctata (three isolates), and Curtobacterium citreum (three isolates). Nucleic acids were extracted from the strawberry fruit and subjected to 16S rRNA gene directed polymerase chain reaction denaturing gradient gel electrophoresis (16S rRNA PCR-DGGE). The species B. subtilis, Enterobacter sp., and Pseudomonas sp. were detected both by isolation and DGGE. The DGGE fingerprints of total bacterial DNA did not exhibit bands corresponding to several of the representative species isolated in the extinction dilution (L. plantarum, C. citreum, and P. punctata). In contrast, bands in the DGGE profile that were identified as relatives of Arthrobacter sp. and one uncultivable Erythrobacter sp. were not recovered by cultivation techniques. After isolation, the nitrogen fixation ability and the in vitro production of indole-3-acetic acid (IAA) equivalents and siderophores were evaluated. A high percentage of isolates were found to possess the ability to produce siderophores and IAA equivalents; however, only a few isolates belonging to the genera Pseudomonas and Enterobacter showed the ability to fix nitrogen. Plant growth promotion was evaluated under greenhouse conditions and revealed the ability of the Bacillus strains to enhance the number of leaves, shoot length, root dry weight, and shoot dry weight. The activity of the bacterial isolate identified as B. subtilis NA-108 exerted the greatest influence on strawberry growth and showed a 42.8% increase in number of leaves, 15.26% for high shoot, 43.5% increase in root dry weight, and a 77% increase in shoot dry weight when compared with untreated controls.pt_BR
dc.languageen_USpt_BR
dc.publisherSpringerpt_BR
dc.rightsrestrictAccesspt_BR
dc.sourceMicrobial Ecologypt_BR
dc.subjectEndophytic bacteriumpt_BR
dc.subjectStrawberry fruitpt_BR
dc.subjectStrawberry plantpt_BR
dc.subjectDGGE profilept_BR
dc.subjectEndophytic bacterial communitypt_BR
dc.titleA multiphasic approach for the identification of endophytic bacterial in strawberry fruit and their potential for plant growth promotionpt_BR
dc.typeArtigopt_BR
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