Characterization and phylogenetic affiliation of Actinobacteria from tropical soils with potential uses for agro-industrial processes.

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dc.contributorUniversidade Federal de São João Del Rei
dc.contributorJOSE EDSON FONTES FIGUEIREDO, CNPMS
dc.contributorUniversidade Federal de Minas Gerais
dc.contributorUBIRACI GOMES DE PAULA LANA, CNPMS
dc.contributorCHRISTIANE ABREU DE OLIVEIRA PAIVA, CNPMS
dc.contributorIVANILDO EVODIO MARRIEL, CNPMS.
dc.creatorDORNELAS, J. C. M.
dc.creatorFIGUEIREDO, J. E. F.
dc.creatorABREU, C. S. de
dc.creatorLANA, U. G. P.
dc.creatorOLIVEIRA-PAIVA, C. A.
dc.creatorMARRIEL, I. E.
dc.date2017-09-23T00:13:50Z
dc.date2017-09-23T00:13:50Z
dc.date2017-09-21
dc.date2017
dc.date2017-11-21T11:11:11Z
dc.date.accessioned2026-07-07T05:21:14Z
dc.descriptionSecondary metabolites produced by Actinobacteria of tropical soils represent a largely understudied source of novel molecules with relevant application in medicine, pharmaceutical and food industries, agriculture, and environmental bioremediation. The present study aimed to characterize sixty-nine Actinobacteria isolated from compost and tropical soils using morphological, biochemical, and molecular methods. All the isolates showed high variation for morphological traits considering the color of pigments of the aerial and vegetative mycelium and spore chain morphology. The enzymatic activity of amylase, cellulase, and lipase was highly variable. The amylase activity was detected in 53 (76.81%) isolates. Eighteen (Streptomyces curacoi) and ACSL 6 (S. hygroscopicus) showed the highest EI values (6.44 and 6.42, respectively). The cellulase activity varied significantly (P ≤ 0.05) among the isolates. Twenty-nine isolates (42.02%) showed high cellulase activity, and the isolates ACJ 48 (S. chiangmaiensis) and ACJ 53 (S. cyslabdanicus) showed the highest EI values (6.56 for both isolates). The lipase activity varied statistically (P ≤ 0.05) with fourteen isolates (20.29%) considered good lipase producers (EI > 2.0). The isolate ACSL 6 (S. hygroscopicus) showed the highest EI value of 2.60. Molecular analysis of partial 16S rRNA gene sequencing revealed the existence of 49 species, being 38 species with only one representative member and 11 species represented by one or more strains. All species belonged to three genera, namely Streptomyces (82.61%), Amycolatopsis (7.25%), and Kitasatospora (10.14%). The present results showed the high biotechnological potential of different Actinobacteria from tropical soils.
dc.identifierGenetics and Molecular Research, Ribeirão Preto, v. 16, n. 3, p. 1-16, 2017.
dc.identifierhttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1076062
dc.identifier10.4238/gmr16039703
dc.identifier.urihttp://hdl.handle.net/123456789/488315
dc.languageeng
dc.rightsopenAccess
dc.subjectMorphological traits
dc.subjectIdentificação molecular
dc.subjectMolecular identification
dc.subjectActinomiceto
dc.subjectAtividade enzimática
dc.subjectActinobacteria
dc.subjectEnzyme activity
dc.titleCharacterization and phylogenetic affiliation of Actinobacteria from tropical soils with potential uses for agro-industrial processes.
dc.typeArtigo de periódico

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