Open AccessTranscriptional regulation of laccase and cellulase genes during growth and fruiting of Lentinula edodes on supplemented sawdust
Author(s) -
Ohga Shoji,
Royse Daniel J.
Publication year - 2001
Publication title -
fems microbiology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.899
H-Index - 151
eISSN - 1574-6968
pISSN - 0378-1097
DOI - 10.1111/j.1574-6968.2001.tb10741.x
Subject(s) - lentinula , cellulase , sawdust , mycelium , laccase , biology , gene , gene expression , enzyme , food science , botany , chemistry , biochemistry , mushroom , ecology
Transcription of laccase and cellulase genes of Lentinula edodes was examined during growth and development under different temperature and moisture levels on a sawdust‐based substrate. RNA was extracted from samples of mycelium and fruit bodies at various stages of development and gene expression was determined by competitive RT‐PCR. The level of laccase transcripts was maximal during the mycelial growth stage, and then declined rapidly at the fruiting stage. In contrast, the cellulase transcript level peaked at the veil–break stage during fruit body development. Gene expressions for laccase and cellulase were triggered by microclimatic changes, specifically lower temperature and osmotic pressure.