Triagem de potencialidades biotecnólogicas de bactérias endofíticas isoladas de folhas Gossypium hirsutum L
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2017
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Gossypium hirsutum L. consists in the most cultivated cotton species worldwide,
exhibiting significative historical and economical importance, mainly in the American
continent. Beyond common plagues that widely affect cotton, it is known that the
plant exhibits a diverse symbiotic microbial community. Endophytic microorganisms
are defined as those that spend part or the entire life period colonizing asymptotically
plant tissues and, by several mechanisms, can promote the host growth and
participate in its protection against pathogens. The aim of the actual work was the
isolation and qualitative evaluation of various biotechnological potentialities of
endophytic bacteria isolates from cotton leaves. Nine bacterial morphotypes were
isolated, with 77,7% exhibiting positivity for at least one of the screening tests. The
same percentage of isolates (77,7%) was capable to produce indole-acetic-acid
(IAA), 66,6% solubilized phosphate and 55,5% grew in a free-nitrogen medium. Two
isolates, AL1 and AL8, generated extracellularly exoenzymes and only one
morphotype, AL1, was able to inhibit the growth of one of the applied bacterial
standard strains. The results are promising for the conduction of future studies that
will consolidate these possible applications of the endophytic bacteria from cotton
under the most different areas in the biotechnological field.
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Algodão, Bactérias endofíticas, Bioprospecção, Bioprospecting, Cotton, Endophytic bacteria
Citação
RODRIGUES, Ariana et al. Triagem de potencialidades biotecnólogicas de bactérias endofíticas isoladas de folhas Gossypium hirsutum L. Enciclopedia Biosfera, [S. l.], v. 14, n. 26, p. 1077-1089, 2017. DOI: 10.18677/EnciBio_2017B91. Disponível em: https://conhecer.org.br/ojs/index.php/biosfera/article/view/779. Acesso em: 22 nov. 2024.