Thermophilic bacteria in Moroccan hot springs, salt marshes and desert soils
Braz. j. microbiol
; 46(2): 443-453, Apr-Jun/2015. tab, graf
Article
ي En
| LILACS
| ID: lil-749707
المكتبة المسؤولة:
BR1.1
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.
Key words
النص الكامل:
1
الفهرس:
LILACS
الموضوع الرئيسي:
Soil Microbiology
/
Bacillaceae
/
Water Microbiology
/
Gram-Positive Rods
/
Hot Springs
البلد/الأقليم حسب الموضوع:
Africa
اللغة:
En
مجلة:
Braz. j. microbiol
موضوع المجلة:
MICROBIOLOGIA
السنة:
2015
نوع:
Article