CgDN24 : a gene involved in hyphal development in the fungal phytopathogen Colletotrichum gloeosporioides

Stephenson, Sally-Anne, Stephens, Camilla M., Maclean, Donald J., & Manners, John M. (2005) CgDN24 : a gene involved in hyphal development in the fungal phytopathogen Colletotrichum gloeosporioides. Microbiological Research, 160(4), pp. 389-397.

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A cDNA corresponding to a transcript induced in culture by N starvation, was identified in Colletotrichum gloeosporioides by a differential hybridisation strategy. The cDNA comprised 905 bp and predicted a 215 aa protein; the gene encoding the cDNA was termed CgDN24. No function for CgDN24 could be predicted by database homology searches using the cDNA sequence and no homologues were found in the sequenced fungal genomes. Transcripts of CgDN24 were detected in infected leaves of Stylosanthes guianensis at stages of infection that corresponded with symptom development. The CgDN24 gene was disrupted by homologous recombination and this led to reduced radial growth rates and the production of hyphae with a hyperbranching phenotype. Normal sporulation was observed, and following conidial inoculation of S. guianensis, normal disease development was obtained. These results demonstrate that CgDN24 is necessary for normal hyphal development in axenic culture but dispensable for phytopathogenicity. © 2005 Elsevier GmbH. All rights reserved.

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2 citations in Web of Science®
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ID Code: 48352
Item Type: Journal Article
Refereed: Yes
Keywords: fungal gene, gene expression regulation, nucleotide sequence
DOI: 10.1016/j.micres.2005.03.003
ISSN: 0944-5013
Subjects: Australian and New Zealand Standard Research Classification > MEDICAL AND HEALTH SCIENCES (110000) > ONCOLOGY AND CARCINOGENESIS (111200)
Divisions: Current > QUT Faculties and Divisions > Faculty of Health
Current > Institutes > Institute of Health and Biomedical Innovation
Deposited On: 01 Feb 2012 00:06
Last Modified: 29 Feb 2012 14:37

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