Data/hora: 10/06/2024 16:49:44

Provedor de dados: 	58	
País: 	Brazil	
Título: 	Taxonomic study and partial characterization of antimicrobial compounds from a moderately halophilic strain of the genus Actinoalloteichus	
Autores: 	Boudjelal,Farida; Zitouni,Abdelghani; Mathieu,Florence; Lebrihi,Ahmed; Sabaou,Nasserdine.	
Data: 	2011-09-01	
Ano: 	2011	
Palavras-chave: 	Actinoalloteichus; Taxonomy; Biological activities; Structure; Dioctyl phthalate.	
Resumo: 	A moderately halophilic actinomycete strain designated AH97 was isolated from a saline Saharan soil, and selected for its antimicrobial activities against bacteria and fungi. The AH97 strain was identified by morphological, chemotaxonomic and phylogenetic analyses to the genus Actinoalloteichus. Analysis of the 16S rDNA sequence of strain AH97 showed a similarity level ranging between 95.8% and 98.4% within Actinoalloteichus species, with A. hymeniacidonis the most closely related. The comparison of the physiological characteristics of AH97 with those of known species of Actinoalloteichus showed significant differences. Strain AH97 showed an antibacterial and antifungal activity against broad spectrum of microorganisms known to be human and plant pathogens. The bioactive compounds were extracted from the filtrate culture with n-butanol and purified using thin layer chromatography and high pressure liquid chromatography procedures. Two active products were isolated, one hydrophilic fraction (F1) and another hydrophobic (F2). Ultraviolet-visible, infrared, mass and ¹H and 13C nuclear magnetic resonance spectroscopy studies suggested that these molecules were the dioctyl phthalate (F2) and an aminoglycosidic compound (F1).	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822011000300002	
Editor: 	Sociedade Brasileira de Microbiologia	
Relação: 	10.1590/S1517-83822011000300002	
Formato: 	text/html	
Fonte: 	Brazilian Journal of Microbiology  v.42 n.3 2011	
Fonte: 	info:eu-repo/semantics/openAccess