Production and properties of an extracellular peroxidase from Coriolus versicolor which catalyses Cα-Cβ cleavage in a lignin model compound

Dodson, P

doi:10.1016/0378-1097(87)90491-5

Cited by 30 publications

(34 citation statements)

References 9 publications

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“…Similar ligninases have been found in other white-rot fungi (Dodson et al 1987;Muheim et al 1990;Niku-Paavola et al 1988), and the mechanisms of lignin depolymerization and degradation are now partially established (Higuchi 1990). However, little is known about the production and activity of the enzymes responsible for lignin degradation during lignocellulose transformation under natural or SSF conditions (Mishra and Leatham 1990).…”

Section: Offprint Requests To: a T Martinezmentioning

confidence: 73%

Kinetics of wheat straw solid-state fermentation with Trametes versicolor and Pleurotus ostreatus ? lignin and polysaccharide alteration and production of related enzymatic activities

Valmaseda

Martı́nez²,

Martı́nez

1991

Appl Microbiol Biotechnol

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The kinetics of straw solid-state fermentation (SSF) with Trametes versicolor and Pleurotus ostreatus was investigated to characterize the delignification processes by these white-rot fungi. Two successive phases could be defined during straw transformation, characterized by changes in respiratory activity, changes in lignin and polysaccharide content and composition, increase in in-vitro digestibility, and enzymatic activities produced by the fungi. Lignin composition was analysed after CuO alkaline degradation, and decreases in syringyl/guaiacyl and syringyl/p-hydroxyphenyl ratios and cinnamic acid content were observed during the fungal treatment. An increase in the phenolic acid yield, revealing fungal degradation of sidechains in lignin, was produced by P. ostreatus. The highest xylanase level was produced by P. ostreatus, and exocellulase activity was nearly absent from straw treated with this fungus. Laccase activity was found in straw treated with both fungi, but lignin peroxidase was only detected during the initial phase of straw transformation with T. versicolor. High levels of HzOz-producing aryl-alcohol oxidase occurred throughout the straw SSF with P. ostreatus.

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Section: Offprint Requests To: a T Martinezmentioning

confidence: 73%

Kinetics of wheat straw solid-state fermentation with Trametes versicolor and Pleurotus ostreatus ? lignin and polysaccharide alteration and production of related enzymatic activities

Valmaseda

Martı́nez²,

Martı́nez

1991

Appl Microbiol Biotechnol

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“…The presence or absence of inducers can influence ligninolytic activity in white rot fungi. Veratryl alcohol as an inducer for example, exerts positive effects on the ligninolytic system of several white rot fungi (GIANFREDA et al 1999, DODSON et al 1987. The presence of veratryl alcohol stimulated lignin peroxidase activity in T. versicolor and laccase activity in P. radiata and T. versicolor (GIANFREDA et al 1999, DODSON et al 1987.…”

Section: Discussionmentioning

confidence: 99%

“…Veratryl alcohol as an inducer for example, exerts positive effects on the ligninolytic system of several white rot fungi (GIANFREDA et al 1999, DODSON et al 1987. The presence of veratryl alcohol stimulated lignin peroxidase activity in T. versicolor and laccase activity in P. radiata and T. versicolor (GIANFREDA et al 1999, DODSON et al 1987. Basal levels of veratryl alcohol and mineral ions (other than Mn 2+ ) were used under all the culture conditions tested in this study however the effects of excluding veratryl alcohol and mineral ions in the culture medium was not determined.…”

Section: Discussionmentioning

confidence: 99%

Ligninolytic enzyme production in selected sub-tropical white rot fungi under different culture conditions

Tekere

Zvauya

Read

2001

J. Basic Microbiol.

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“…In the nitrogen nutrition of these wood rot fungi, proteinases have essential functions for growth in acting on senescent mycelium to utilize fungal protein as a nutrient. However, it was generally observed that ligninolysis by wood rot fungi such as Phanerochaete chr~~sosporiuni or C. versicolor was suppressed by nitrogen compounds in the media (Fenn & Kirk, 1981;Dodson et a/., 1987). If laccase is secreted on the wood surface in large quantities and is rapidly degraded to produce free amino acids under proteolytic conditions, production of other ligninolytic enzymes such as lignin peroxidase could be suppressed and consequently wood degradation inhibited.…”

Section: Discussionmentioning

confidence: 99%

N-linked carbohydrate chains protect laccase III from proteolysis in Coriolus versicolor

Yoshitake

Katayama

Nakamura

et al. 1993

Journal of General Microbiology

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The structure and function of the N-linked carbohydrate chains in laccase 111, one of the ligninolytic glycoenzymes from the white-rot fungus Cuviulus versiculuv, have been partially characterized using endoglycosidases (Endo F and Endo H) and the N-asparagine-specific inhibitor, tunicamycin. In the presence of 10 pg tunicamycin ml-' laccase and proteinase activities in culture filtrates of C. vevsiculur were measured over 3 weeks. Laccase activity was slightly decreased by the addition of tunicamycin, whereas proteinase activity was increased. The N-linked carbohydrate chains were not necessary for laccase secretion and activity. Endo-glycosidase digestion showed that laccase I11 contained at least four N-linked carbohydrate chains, of which two were high-mannose type or hybrid type and two were complex type. Judging from the differences in the resistance of the native and the carbohydratedepleted laccase to proteolytic digestion and high temperature, the four N-linked carbohydrate chains have important protective functions against proteolytic attack and elevated temperature.

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Production and properties of an extracellular peroxidase from Coriolus versicolor which catalyses Cα-Cβ cleavage in a lignin model compound

Cited by 30 publications

References 9 publications

Kinetics of wheat straw solid-state fermentation with Trametes versicolor and Pleurotus ostreatus ? lignin and polysaccharide alteration and production of related enzymatic activities

Kinetics of wheat straw solid-state fermentation with Trametes versicolor and Pleurotus ostreatus ? lignin and polysaccharide alteration and production of related enzymatic activities

Ligninolytic enzyme production in selected sub-tropical white rot fungi under different culture conditions

N-linked carbohydrate chains protect laccase III from proteolysis in Coriolus versicolor

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