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We are studying the filamentous fungus A. nidulans as a model for spore and mycotoxin formation as well as for polarized growth. A. nidulans produces asexual conidiospores for rapid distribution in the environment and sexual ascospores for long-term survival in soil. The decision between the developmental pathways, is determined by a number of environmental factors, one of which is light. Red-light represses sexual and induces asexual reproduction, and the effect can be reversed by far-red-light illumination. Thus, the system is reminiscent of the phytochrome system of plants. Phytochromes are photoreceptors that sense red and far-red light through photo-interconversion between two stable conformations. This distinct feature is mediated by a covalently bound linear tetrapyrrole chromophore. Phytochromes were thought to be confined to photosynthetic organisms including cyanobacteria, but have been recently discovered in heterotrophic bacteria and in fungi, where little is known about their functions. We discovered, that the A. nidulans phytochrome, PhsA, acts as red-light sensor and represses sexual development. We have characterized several other regulators in the past and will now try to link the phytochrome with the regulatory network.
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PLOS geneticsno. 5 (2024): e1011282-e1011282
Communications Biologyno. 1 (2024): 1-12
Lars Schuhmacher, Steffen Heck, Michael Pitz, Elena Mathey,Tilman Lamparter, Alexander Blumhofer,Kai Leister,Reinhard Fischer
Journal of Biological Chemistryno. 5 (2024): 107238-107238
Xiaodi Hu, David S. Hoffmann, Mai Wang, Lars Schuhmacher,Maria C. Stroe, Birgit Schreckenberger, Marcus Elstner,Reinhard Fischer
Nature microbiology (2024)
Maria Pop, Anna-Lena Klemke, Lena Seidler,Nicole Wernet, Pietrina Loredana Steudel, Vanessa Baust,Elke Wohlmann,Reinhard Fischer
ISCIENCEno. 4 (2024)
Molecular microbiologyno. 1 (2023): 18-25
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#Papers: 198
#Citation: 12564
H-Index: 53
G-Index: 110
Sociability: 7
Diversity: 0
Activity: 1
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