A - Papers appearing in refereed journals
Dos Reis, T. F., Mellado, L., Lohmar, J. M., Pereira Silva, L., Zhou, J-J., Calvo, A. M., Goldman, G. H. and Brown, N. A. 2019. GPCR-mediated glucose sensing system regulates light-dependent fungal development and mycotoxin production. PLOS Genetics. 15 (10), p. e1008419. https://doi.org/10.1371/journalpgen.1008419
Authors | Dos Reis, T. F., Mellado, L., Lohmar, J. M., Pereira Silva, L., Zhou, J-J., Calvo, A. M., Goldman, G. H. and Brown, N. A. |
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Abstract | Microorganisms sense environmental fluctuations in nutrients and light, coordinating their growth and development accordingly. Despite their critical roles in fungi, only a few G-protein coupled receptors (GPCRs) have been characterized. The Aspergillus nidulans genome encodes 86 putative GPCRs. Here, we characterise a carbon starvation-induced GPCR-mediated glucose sensing mechanism in A. nidulans. This includes two class V (gprH and gprI) and one class VII (gprM) GPCRs, which in response to glucose promote cAMP signalling, germination and hyphal growth, while negatively regulating sexual development in a light-dependent manner. We demonstrate that GprH regulates sexual development via influencing VeA activity, a key light-dependent regulator of fungal morphogenesis and secondary metabolism. We show that GprH and GprM are light-independent negative regulators of sterigmatocystin biosynthesis. Additionally, we reveal the epistatic interactions between the three GPCRs in regulating sexual development and sterigmatocystin production. In conclusion, GprH, GprM and GprI constitute a novel carbon starvation-induced glucose sensing mechanism that functions upstream of cAMP-PKA signalling to regulate fungal development and mycotoxin production. |
Year of Publication | 2019 |
Journal | PLOS Genetics |
Journal citation | 15 (10), p. e1008419 |
Digital Object Identifier (DOI) | https://doi.org/10.1371/journalpgen.1008419 |
Open access | Published as green open access |
Funder | Biotechnology and Biological Sciences Research Council |
Funder project or code | BB/GCRF-IAA17/18 |
Publisher's version | |
Output status | Published |
Publication dates | |
Online | 14 Oct 2019 |
Publication process dates | |
Accepted | 13 Sep 2019 |
Publisher | Public Library of Science (PLOS) |
ISSN | 1553-7404 |
Permalink - https://repository.rothamsted.ac.uk/item/981z1/gpcr-mediated-glucose-sensing-system-regulates-light-dependent-fungal-development-and-mycotoxin-production