Journal article

Publication year: 2013

Pages: 1029-1039

Journal: Antonie van Leeuwenhoek

Volume number: 103

Issue number: 5

ISSN: 0003-6072

DOI Link: https://doi.org/10.1007/s10482-013-9883-7

Publisher: Springer

Abstract: 
The litter-degrading dung fungus Coprinopsis cinerea has the high number of seventeen different laccase genes. In this work, ten different monokaryons were compared in their ability to produce laccases in two different complete media at different temperatures. Few strains showed laccase activity at the optimal growth temperature of 37 degrees C. Nine of the strains gave laccase activities between 0.2 and 5.9 U mL(-1) at the suboptimal temperature of 25 degrees C in mKjalke medium. Laccase activities in YMG/T medium were detected for only three strains (0.5-4.5 U mL(-1)). Zymograms of supernatants from mKjalke medium resulted in total in 10 different laccase bands but strains differed in distribution. LC-MS/MS analysis with Mascot searches of the annotated C. cinerea genome identified isoenzymes from five different genes (Lcc1, Lcc2, Lcc5, Lcc9 and Lcc10) and of Lcc1 three and of Lcc5 two distinct electrophoretical forms. Lcc1 and Lcc5 were expressed in all laccase positive strains, but not all forms were found in all of the strains. Lcc2, Lcc9 and Lcc10 occurred only in three strains as minor laccases, indicating that Lcc1 and Lcc5 are the main laccases of C. cinerea secreted in liquid mKjalke medium.

Harvard Citation style: Rühl, M., Majcherczyk, A. and Kües, U. (2013) Lcc1 and Lcc5 are the main laccases secreted in liquid cultures of Coprinopsis cinerea strains, Antonie van Leeuwenhoek, 103(5), pp. 1029-1039. https://doi.org/10.1007/s10482-013-9883-7

APA Citation style: Rühl, M., Majcherczyk, A., & Kües, U. (2013). Lcc1 and Lcc5 are the main laccases secreted in liquid cultures of Coprinopsis cinerea strains. Antonie van Leeuwenhoek. 103(5), 1029-1039. https://doi.org/10.1007/s10482-013-9883-7