Envoy, a PAS/LOV domain protein of Hypocrea jecorina (Anamorph Trichoderma reesei), modulates cellulase gene transcription in response to light.

ABSTRACT: Envoy, a PAS/LOV domain protein with similarity to the Neurospora light regulator Vivid, which has been cloned due to its lack of expression in a cellulase-negative mutant, links cellulase induction by cellulose to light signaling in Hypocrea jecorina. Despite their similarity, env1 could not compensate for the lack of vvd function. Besides the effect of light on sporulation, we observed a reduced growth rate in constant light. An env1(PAS-) mutant of H. jecorina grows significantly slower in the presence of light but remains unaffected in darkness compared to the wild-type strain QM9414. env1 rapidly responds to a light pulse, with this response being different upon growth on glucose or glycerol, and it encodes a regulator essential for H. jecorina light tolerance. The induction of cellul

SUBMITTER: Schmoll M 

PROVIDER: S-EPMC1317494 | biostudies-literature | 2005 Dec

REPOSITORIES: biostudies-literature