Regulation of production of plant polysaccharide degrading enzymes by Trichoderma

C. Kubicek, Merja Penttilä

Research output: Chapter in Book/Report/Conference proceedingChapter or book articleProfessional

Abstract

Most species of Trichoderma and Gliocladium are saprophytes, and their respective teleomorphs are lignicolous ascomycetes (see Volume 1, Chapter 5). Hence, they encounter in nature a wide variety of polymeric substrates among which celluloses and hemicelluloses predominate. Cellulose chains are j?-1,4-glucosidically-linked homopolymers of about 8000-12000 glucose units, which are held together by hydrogen bonding to form essentially insoluble crystalline cellulose. Hemicellulose is a general term summarizing various heteropolysaccharides which are based on backbone polymers formed of xylose (xylans) or mannose (and glucose) (mannans, glucomannans) and which have additional side-chain substituents such as arabinose and galactose, and acetic and glucuronic acids (see Chapter 2). Pectins are even more complicated with various branched structures. In contrast to degradation of cellulose, which leads to glucose and glucooligomers, degradation of hemicelluloses leads to the accumulation of various mono-and disaccharides in various ratios depending on the hemicellulose type. Other polymers such as j?-glucans, starch and protein account only for a smaller part of available carbon, although they may predominate in certain habitats (Chapter 6).
Original languageEnglish
Title of host publicationTrichoderma And Gliocladium
Subtitle of host publicationEnzymes, Biological Control and commercial applications
EditorsGary E. Harman, Christian P. Kubicek
PublisherCRC Press
Chapter3
Pages49-72
Volume2
ISBN (Print)9780748408054
Publication statusPublished - 1998
MoE publication typeD2 Article in professional manuals or guides or professional information systems or text book material

Fingerprint

Cellulose
Polysaccharides
Enzymes
Glucose
Polymers
Glucuronates
Pectins
Mannans
Xylans
Degradation
Arabinose
Glucans
Disaccharides
Xylose
Mannose
Homopolymerization
Galactose
Starch
Hydrogen bonds
Acetates

Cite this

Kubicek, C., & Penttilä, M. (1998). Regulation of production of plant polysaccharide degrading enzymes by Trichoderma. In G. E. Harman, & C. P. Kubicek (Eds.), Trichoderma And Gliocladium: Enzymes, Biological Control and commercial applications (Vol. 2, pp. 49-72). CRC Press.
Kubicek, C. ; Penttilä, Merja. / Regulation of production of plant polysaccharide degrading enzymes by Trichoderma. Trichoderma And Gliocladium: Enzymes, Biological Control and commercial applications. editor / Gary E. Harman ; Christian P. Kubicek. Vol. 2 CRC Press, 1998. pp. 49-72
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Kubicek, C & Penttilä, M 1998, Regulation of production of plant polysaccharide degrading enzymes by Trichoderma. in GE Harman & CP Kubicek (eds), Trichoderma And Gliocladium: Enzymes, Biological Control and commercial applications. vol. 2, CRC Press, pp. 49-72.

Regulation of production of plant polysaccharide degrading enzymes by Trichoderma. / Kubicek, C.; Penttilä, Merja.

Trichoderma And Gliocladium: Enzymes, Biological Control and commercial applications. ed. / Gary E. Harman; Christian P. Kubicek. Vol. 2 CRC Press, 1998. p. 49-72.

Research output: Chapter in Book/Report/Conference proceedingChapter or book articleProfessional

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AB - Most species of Trichoderma and Gliocladium are saprophytes, and their respective teleomorphs are lignicolous ascomycetes (see Volume 1, Chapter 5). Hence, they encounter in nature a wide variety of polymeric substrates among which celluloses and hemicelluloses predominate. Cellulose chains are j?-1,4-glucosidically-linked homopolymers of about 8000-12000 glucose units, which are held together by hydrogen bonding to form essentially insoluble crystalline cellulose. Hemicellulose is a general term summarizing various heteropolysaccharides which are based on backbone polymers formed of xylose (xylans) or mannose (and glucose) (mannans, glucomannans) and which have additional side-chain substituents such as arabinose and galactose, and acetic and glucuronic acids (see Chapter 2). Pectins are even more complicated with various branched structures. In contrast to degradation of cellulose, which leads to glucose and glucooligomers, degradation of hemicelluloses leads to the accumulation of various mono-and disaccharides in various ratios depending on the hemicellulose type. Other polymers such as j?-glucans, starch and protein account only for a smaller part of available carbon, although they may predominate in certain habitats (Chapter 6).

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Kubicek C, Penttilä M. Regulation of production of plant polysaccharide degrading enzymes by Trichoderma. In Harman GE, Kubicek CP, editors, Trichoderma And Gliocladium: Enzymes, Biological Control and commercial applications. Vol. 2. CRC Press. 1998. p. 49-72