Artículo
Abstract:
Growth and cellulase-xylanase enzyme systems production by Ascobolus gamundii were evaluated in synthetic media with or without natural inducers. The basal level of enzyme complexes was determined using glucose as carbon source. With crystalline cellulose, the amount of endoglucanase and beta-glucosidase was 2-4 times the basal, and the level of endoxylanase and beta-xylosidase was 3 times higher than that observed with glucose. When using xylan as carbon source, endoxylanase and endoglucanase were induced. The higher production of the enzyme systems was observed during the log-phase growth of A. gamundii with a mixture of cellulose and xylan as carbon source. The generalized induction of both enzyme complexes could be due to evolutive adaptation to the substrate (herbivore dung) in which cellulose and hemicellulose are associated to conform the plants cell-walls.
Registro:
| Documento: | Artículo |
| Título: | Kinetics of xylanase and cellulase production by Ascobolus gamundii (Fungi, Ascomycotina) |
| Autor: | Sivori, A.S.; Mercuri, O.A.; Forchiassin, F. |
| Filiación: | Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Argentina |
| Palabras clave: | beta glucosidase; cellulase; cellulose; endo 1,4 beta xylanase; exo 1,4 beta D xylosidase; exo-1,4-beta-D-xylosidase; fungal protein; glucose; xylan; xylan 1,4 beta xylosidase; xylan endo 1,3 beta xylosidase; article; Ascomycetes; biosynthesis; enzyme induction; enzymology; feces; gene expression regulation; genetics; kinetics; metabolism; microbiology; Ascomycota; beta-Glucosidase; Cellulase; Cellulose; Endo-1,4-beta Xylanases; Enzyme Induction; Feces; Fungal Proteins; Gene Expression Regulation, Bacterial; Glucose; Kinetics; Xylan Endo-1,3-beta-Xylosidase; Xylans; Xylosidases |
| Año: | 1996 |
| Volumen: | 28 |
| Número: | 1 |
| Página de inicio: | 9 |
| Página de fin: | 15 |
| Título revista: | Revista Argentina de microbiología |
| Título revista abreviado: | Rev. Argent. Microbiol. |
| ISSN: | 03257541 |
| CAS: | beta glucosidase, 51683-43-3, 9001-22-3; cellulase, 9012-54-8; cellulose, 61991-22-8, 68073-05-2, 9004-34-6; endo 1,4 beta xylanase, 9025-57-4; glucose, 50-99-7, 84778-64-3; xylan, 9014-63-5; xylan 1,4 beta xylosidase, 9025-53-0; xylan endo 1,3 beta xylosidase, 37278-89-0, 9025-55-2; beta-Glucosidase, EC 3.2.1.21, EC 3.2.1.4; Cellulase, EC 3.2.1.4; Cellulose, 9004-34-6, EC 3.2.1.4; Endo-1,4-beta Xylanases, EC 3.2.1.8, EC 3.2.1.37; exo-1,4-beta-D-xylosidase, EC 3.2.1.37; Fungal Proteins; Glucose, 50-99-7; Xylan Endo-1,3-beta-Xylosidase, EC 3.2.1.32, EC 3.2.1.4; Xylans; Xylosidases, EC 3.2.1.-, EC 3.2.1.21 |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03257541_v28_n1_p9_Sivori |
Citas:
---------- APA ----------
Sivori, A.S., Mercuri, O.A. & Forchiassin, F. (1996) . Kinetics of xylanase and cellulase production by Ascobolus gamundii (Fungi, Ascomycotina) . Revista Argentina de microbiología, 28(1), 9-15.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03257541_v28_n1_p9_Sivori [ ]
---------- CHICAGO ----------
Sivori, A.S., Mercuri, O.A., Forchiassin, F. "Kinetics of xylanase and cellulase production by Ascobolus gamundii (Fungi, Ascomycotina) " . Revista Argentina de microbiología 28, no. 1 (1996) : 9-15.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03257541_v28_n1_p9_Sivori [ ]
---------- MLA ----------
Sivori, A.S., Mercuri, O.A., Forchiassin, F. "Kinetics of xylanase and cellulase production by Ascobolus gamundii (Fungi, Ascomycotina) " . Revista Argentina de microbiología, vol. 28, no. 1, 1996, pp. 9-15.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03257541_v28_n1_p9_Sivori [ ]
---------- VANCOUVER ----------
Sivori, A.S., Mercuri, O.A., Forchiassin, F. Kinetics of xylanase and cellulase production by Ascobolus gamundii (Fungi, Ascomycotina) . Rev. Argent. Microbiol. 1996;28(1):9-15.Available from: https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03257541_v28_n1_p9_Sivori [ ]
