Evaluation of the cellulolytic capacity of Ascobolus furfuraceus (Fungi, Ascomycotina)

Growth kinetic variables (dry weight, mycelial protein, extracellular protein and pH evolution) were measured in Ascobolus furfuraceus cultures either with soluble cellulose (CMC) or crystalline cellulose as only carbon sources. When growing on CMC the mycelial protein production reached a maximum a...

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Autores principales: Mercuri, O.A., Diorio, L.A.
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Acceso en línea:http://hdl.handle.net/20.500.12110/paper_03257541_v27_n3_p130_Mercuri
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spelling todo:paper_03257541_v27_n3_p130_Mercuri2023-10-03T15:24:02Z Evaluation of the cellulolytic capacity of Ascobolus furfuraceus (Fungi, Ascomycotina) Mercuri, O.A. Diorio, L.A. cellulase cellulose fungal protein article Ascomycetes comparative study enzymology growth, development and aging metabolism Ascomycota Cellulase Cellulose Fungal Proteins Growth kinetic variables (dry weight, mycelial protein, extracellular protein and pH evolution) were measured in Ascobolus furfuraceus cultures either with soluble cellulose (CMC) or crystalline cellulose as only carbon sources. When growing on CMC the mycelial protein production reached a maximum at 14 days, while the extracellular protein was maximal at 17 days. On crystalline cellulose more delay was observed (4 and 14 days, respectively). Straight lineal correspondence (r = 0.9883) was observed between the extracellular protein production and enzymatic activity kinetics, showing parallel behavior of these variables. When the biomass and extracellular protein production rates were analysed, the maxima were observed at diverse growth stages. For CMC, the dry weight production rythm precedes the cellulolytic system liberation rythm (maxima at 9 and 14 days, respectively). When crystalline cellulose was the substrate, the maximal rates were inverse, 16th day for biomass production rythm and 12th day for enzyme release rythm. On the basis of such tests and analyses, a model to explain cellulose degration by A. furfuraceus, is proposed. Fil:Mercuri, O.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Diorio, L.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_03257541_v27_n3_p130_Mercuri
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic cellulase
cellulose
fungal protein
article
Ascomycetes
comparative study
enzymology
growth, development and aging
metabolism
Ascomycota
Cellulase
Cellulose
Fungal Proteins
spellingShingle cellulase
cellulose
fungal protein
article
Ascomycetes
comparative study
enzymology
growth, development and aging
metabolism
Ascomycota
Cellulase
Cellulose
Fungal Proteins
Mercuri, O.A.
Diorio, L.A.
Evaluation of the cellulolytic capacity of Ascobolus furfuraceus (Fungi, Ascomycotina)
topic_facet cellulase
cellulose
fungal protein
article
Ascomycetes
comparative study
enzymology
growth, development and aging
metabolism
Ascomycota
Cellulase
Cellulose
Fungal Proteins
description Growth kinetic variables (dry weight, mycelial protein, extracellular protein and pH evolution) were measured in Ascobolus furfuraceus cultures either with soluble cellulose (CMC) or crystalline cellulose as only carbon sources. When growing on CMC the mycelial protein production reached a maximum at 14 days, while the extracellular protein was maximal at 17 days. On crystalline cellulose more delay was observed (4 and 14 days, respectively). Straight lineal correspondence (r = 0.9883) was observed between the extracellular protein production and enzymatic activity kinetics, showing parallel behavior of these variables. When the biomass and extracellular protein production rates were analysed, the maxima were observed at diverse growth stages. For CMC, the dry weight production rythm precedes the cellulolytic system liberation rythm (maxima at 9 and 14 days, respectively). When crystalline cellulose was the substrate, the maximal rates were inverse, 16th day for biomass production rythm and 12th day for enzyme release rythm. On the basis of such tests and analyses, a model to explain cellulose degration by A. furfuraceus, is proposed.
format JOUR
author Mercuri, O.A.
Diorio, L.A.
author_facet Mercuri, O.A.
Diorio, L.A.
author_sort Mercuri, O.A.
title Evaluation of the cellulolytic capacity of Ascobolus furfuraceus (Fungi, Ascomycotina)
title_short Evaluation of the cellulolytic capacity of Ascobolus furfuraceus (Fungi, Ascomycotina)
title_full Evaluation of the cellulolytic capacity of Ascobolus furfuraceus (Fungi, Ascomycotina)
title_fullStr Evaluation of the cellulolytic capacity of Ascobolus furfuraceus (Fungi, Ascomycotina)
title_full_unstemmed Evaluation of the cellulolytic capacity of Ascobolus furfuraceus (Fungi, Ascomycotina)
title_sort evaluation of the cellulolytic capacity of ascobolus furfuraceus (fungi, ascomycotina)
url http://hdl.handle.net/20.500.12110/paper_03257541_v27_n3_p130_Mercuri
work_keys_str_mv AT mercurioa evaluationofthecellulolyticcapacityofascobolusfurfuraceusfungiascomycotina
AT dioriola evaluationofthecellulolyticcapacityofascobolusfurfuraceusfungiascomycotina
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