The traits of production of extracellular chitinases and β-mannanases by alkaliphilic bacterium Bacillus mannanilyticus, strain IB-OR17
Doklady Bashkirskogo Universiteta. 2017. Volume 2. No. 3. pp. 386-390.
Authors
Gayduk E. A.
Ufa State Petroleum Technological University
1 Kosmonavtov Street, 450062 Ufa, Republic of Bashkortostan, Russia
Galymzianova N. F.
Ufa Institute of Biology, Russian Academy of Sciences
69 Prospekt Oktyabrya, 450054 Ufa, Republic of Bashkortostan, Russia
Gilvanova E. A.
Ufa Institute of Biology, Russian Academy of Sciences
69 Prospekt Oktyabrya, 450054 Ufa, Republic of Bashkortostan, Russia
Aktuganov G. E.*
Ufa Institute of Biology, Russian Academy of Sciences
69 Prospekt Oktyabrya, 450054 Ufa, Republic of Bashkortostan, Russia
*E-mail: gleakt@anrb.ru
Abstract
The ability of novel strain, IB-OR17 related to alkaliphilic species Bacillus mannanilyticus to chitin degradation was revealed for the first time. Some aspects of synthesis of chitinases and β-mannanases by the strain were studied under submerged cultivation. The inducible character of chitinase production by B. mannanilyticus IB-OR17 was found, while its β-mannanase production is constitutive. Maximal chitinase production was recorded for optimal interval of bacterial growth under pH 9.0-10.0. The impact of various carbon sources on biosynthesis of β-mannanases by B. mannanilyticus IB-OR17 was studied.
Keywords
- Bacillus mannanilyticus
- alkaliphilic bacteria
- chitinase
- β-mannanase