Trichoderma in the light of day--physiology and development.
In recent years, considerable progress has been made in the elucidation of photoresponses and the mechanisms responsible for their induction in species of the genus Trichoderma. Although an influence of light on these fungi had already been reported five decades ago, their response is not limited to photoconidiation. While early studies on the molecular level concentrated on signaling via the secondary messenger cAMP, a more comprehensive scheme is available today. The photoreceptor-orthologs BLR1 and BLR2 are known to mediate almost all known light responses in these fungi and another light-regulatory protein, ENVOY, is suggested to establish the connection between light response and nutrient signaling. As a central regulatory mechanism, this light signaling machinery impacts diverse downstream pathways including vegetative growth, reproduction, carbon and sulfur metabolism, response to oxidative stress and biosynthesis of peptaibols. These responses involve several signaling cascades, for example the heterotrimeric G-protein and MAP-kinase cascades, resulting in an integrated response to environmental conditions.
Schmoll
Monika
M
Research Area Gene Technology and Applied Biochemistry, Institute of Chemical Engineering, Vienna University of Technology, Getreidemarkt 9/166-5, 1060 Vienna, Austria.
Esquivel-Naranjo
Edgardo Ulises
EU
Herrera-Estrella
Alfredo
A
D002244:Carbon / Q000378:metabolism; D005656:Fungal Proteins / Q000378:metabolism; D015966:Gene Expression Regulation, Fungal; D008027:Light; D025282:Mycelium / Q000254:growth & development; D018384:Oxidative Stress; D054848:Peptaibols / Q000378:metabolism; D011956:Receptors, Cell Surface / Q000378:metabolism; D015398:Signal Transduction; D013455:Sulfur / Q000378:metabolism; D014157:Transcription Factors / Q000378:metabolism; D014242:Trichoderma / Q000254:growth & development / Q000378:metabolism / Q000502:physiology*
D005656:Fungal Proteins; D054848:Peptaibols; D011956:Receptors, Cell Surface; D014157:Transcription Factors; D013455:Sulfur; D002244:Carbon
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