Thermophilic bacteria in Moroccan hot springs, salt marshes and desert soils
Braz. j. microbiol
;
46(2): 443-453, Apr-Jun/2015. tab, graf
Artigo
em Inglês
| LILACS
| ID: lil-749707
ABSTRACT
The diversity of thermophilic bacteria was investigated in four hot springs, three salt marshes and 12 desert sites in Morocco. Two hundred and forty (240) thermophilic bacteria were recovered, identified and characterized. All isolates were Gram positive, rod-shaped, spore forming and halotolerant. Based on BOXA1R-PCR and 16S rRNA gene sequencing, the recovered isolates were dominated by the genus Bacillus (97.5%) represented by B. licheniformis (119), B. aerius (44), B. sonorensis (33), B. subtilis (subsp. spizizenii (2) and subsp. inaquosurum (6)), B. amyloliquefaciens (subsp. amyloliquefaciens (4) and subsp. plantarum (4)), B. tequilensis (3), B. pumilus (3) and Bacillus sp. (19). Only six isolates (2.5%) belonged to the genus Aeribacillus represented by A. pallidus (4) and Aeribacillus sp. (2). In this study, B. aerius and B. tequilensis are described for the first time as thermophilic bacteria. Moreover, 71.25%, 50.41% and 5.41% of total strains exhibited high amylolytic, proteolytic or cellulolytic activity respectively.
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Microbiologia do Solo
/
Bacillaceae
/
Microbiologia da Água
/
Bacilos Gram-Positivos
/
Fontes Termais
País/Região como assunto:
África
Idioma:
Inglês
Revista:
Braz. j. microbiol
Assunto da revista:
Microbiologia
Ano de publicação:
2015
Tipo de documento:
Artigo
País de afiliação:
Marrocos
Instituição/País de afiliação:
Centre National pour la Recherche Scientifique et Technique/MA
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