Biomaterial Database

Degradation of cellulose by nitrogen-fixing strain of Bacillus polymyxa. 2001

E Górska, and B Tudek, and S Russel

Department of Agricultural Microbiology, Warsaw Agricultural University, 02-528 Warsaw, 26/30 Rakowiecka.

During an intensive screening programme, several strains of cellulolytic bacteria were isolated. One nitrogenase-positive strain able to degrade filter paper, Avicel cellulose, carboxymethyl cellulose and cellobiose was selected for further study. On the basis of biochemical characteristics and Mol % of G+C content, the selected strain was identified as Bacillus polymyxa. The highest production of the enzymes degrading filter paper (FP-ase) and carboxymethyl cellulose (CMCase) by B. polymyxa was observed in Park's medium suplemented with Avicel cellulose. The investigated strain of bacteria produced cellulosome-like structures as was shown by transmission electron microscopy.

UI	MeSH Term	Description	Entries
D008854	Microscopy, Electron	Microscopy using an electron beam, instead of light, to visualize the sample, thereby allowing much greater magnification. The interactions of ELECTRONS with specimens are used to provide information about the fine structure of that specimen. In TRANSMISSION ELECTRON MICROSCOPY the reactions of the electrons that are transmitted through the specimen are imaged. In SCANNING ELECTRON MICROSCOPY an electron beam falls at a non-normal angle on the specimen and the image is derived from the reactions occurring above the plane of the specimen.	Electron Microscopy
D009591	Nitrogenase	An enzyme system that catalyzes the fixing of nitrogen in soil bacteria and blue-green algae (CYANOBACTERIA). EC 1.18.6.1.	Dinitrogenase,Vanadium Nitrogenase,Nitrogenase, Vanadium
D010209	Paper	Thin sheets made from wood pulp and other fibrous substances, used for writing, drawing, printing, image duplication or wrapping.	Papers
D002266	Carboxymethylcellulose Sodium	A cellulose derivative which is a beta-(1,4)-D-glucopyranose polymer. It is used as a bulk laxative and as an emulsifier and thickener in cosmetics and pharmaceuticals and as a stabilizer for reagents.	Carboxymethyl Cellulose,Carboxymethylcellulose,Aquacel,Aquaplast,Carmellose Sodium,Cellolax,Cethylose,Croscarmellose Sodium,Polycell,Ruspol,Sodium Carboxymethylcellulose,Carboxymethylcellulose, Sodium,Cellulose, Carboxymethyl,Sodium, Carboxymethylcellulose,Sodium, Carmellose,Sodium, Croscarmellose
D002480	Cellulase	An endocellulase with specificity for the hydrolysis of 1,4-beta-glucosidic linkages in CELLULOSE, lichenin, and cereal beta-glucans.	Endo-1,4-beta-Glucanase,Cellulysin,Endoglucanase,Endoglucanase A,Endoglucanase C,Endoglucanase E,Endoglucanase IV,Endoglucanase Y,beta-1,4-Glucan-4-Glucanohydrolase,Endo 1,4 beta Glucanase,beta 1,4 Glucan 4 Glucanohydrolase
D001407	Bacillus	A genus of BACILLACEAE that are spore-forming, rod-shaped cells. Most species are saprophytic soil forms with only a few species being pathogenic.	Bacillus bacterium