title: [Assimilation of insoluble beta mannan by a strain of Streptomyces from the soil].
abstract: A strain of Streptomyces hydrolysing the insoluble beta (1 leads to 4) mannan has been isolated from a soil of palm plantation. The first step in the degradation of the polysaccharide is a random hydrolysis by a beta mannanase, leading to mannotetra-, mannotri- and mannobiose. Liberation of free mannose is never observed. The hydrolysing pattern of oligomannosides and of their reduced homologues has been studied and a transfert reaction is postulated. This mannanase behaves as a true endopolysaccharidase.
mesh_terms: D006026:Glycoside Hydrolases / Q000378:metabolism*; D008351:Mannans; D008362:Mannosides / Q000378:metabolism; D012988:Soil Microbiology; D013302:Streptomyces / Q000201:enzymology*
chemical_list: D008351:Mannans; D008362:Mannosides; D006026:Glycoside Hydrolases
vernacular_title: Assimilation de beta mannane insoluble par une souche de Streptomyces du sol