Selection of Pycnoporus cinnabarinus strains for laccase production.
نویسندگان
چکیده
A comparison of Pycnoporus cinnabarinus strains for laccase production was carried out. A dikaryotic strain, I-937 strain, producing a high level of laccase (9500 U l(-1)) was selected. The study of the life cycle in vitro of this dikaryotic strain led to isolation of monokaryons. Forty-eight monokaryotic strains were isolated and screened for laccase production. One of these strains, ss3, produced a higher level of laccase than the parental strain I-937. The maximum production reached 29000 U l(-1) in medium supplemented with ferulic acid.
منابع مشابه
Highly efficient production of laccase by the basidiomycete Pycnoporus cinnabarinus.
An efficient transformation and expression system was developed for the industrially relevant basidiomycete Pycnoporus cinnabarinus. This was used to transform a laccase-deficient monokaryotic strain with the homologous lac1 laccase gene placed under the regulation of its own promoter or that of the SC3 hydrophobin gene or the glyceraldehyde-3-phosphate dehydrogenase (GPD) gene of Schizophyllum...
متن کاملThe ligninolytic system of the white rot fungus Pycnoporus cinnabarinus: purification and characterization of the laccase.
The white rot fungus Pycnoporus cinnabarinus was characterized with respect to its set of extracellular phenoloxidases. Laccase was produced as the predominant extracellular phenoloxidase in conjunction with low amounts of an unusual peroxidase. Neither lignin peroxidase nor manganese peroxidase was detected. Laccase was produced constitutively during primary metabolism. Addition of the most ef...
متن کاملDegradation of Three Aromatic Dyes by White Rot Fungi and the Production of Ligninolytic Enzymes
This study was conducted to evaluate the degradation of aromatic dyes and the production of ligninolytic enzymes by 10 white rot fungi. The results of this study revealed that Pycnoporus cinnabarinus, Pleurotus pulmonarius, Ganoderma lucidum, Trametes suaveolens, Stereum ostrea and Fomes fomentarius have the ability to efficiently degrade congo red on solid media. However, malachite green inhib...
متن کاملMolecular analysis of a laccase gene from the white rot fungus Pycnoporus cinnabarinus.
It was recently shown that the white rot basidiomycete Pycnoporus cinnabarinus secretes an unusual set of phenoloxidases when it is grown under conditions that stimulate ligninolysis (C. Eggert, U. Temp, and K.-E. L. Eriksson, Appl. Environ. Microbiol. 62:1151-1158, 1996). In this report we describe the results of a cloning and structural analysis of the laccase-encoding gene (lcc3-1) expressed...
متن کاملNovel interaction between laccase and cellobiose dehydrogenase during pigment synthesis in the white rot fungus Pycnoporus cinnabarinus.
When glucose is the carbon source, the white rot fungus Pycnoporus cinnabarinus produces a characteristic red pigment, cinnabarinic acid, which is formed by laccase-catalyzed oxidation of the precursor 3-hydroxyanthranilic acid. When P. cinnabarinus was grown on media containing cellobiose or cellulose as the carbon source, the amount of cinnabarinic acid that accumulated was reduced or, in the...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- FEMS microbiology letters
دوره 183 2 شماره
صفحات -
تاریخ انتشار 2000