Journal
MOLECULAR PLANT-MICROBE INTERACTIONS
Volume 28, Issue 3, Pages 232-248Publisher
AMER PHYTOPATHOLOGICAL SOC
DOI: 10.1094/MPMI-09-14-0261-FI
Keywords
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Funding
- Spanish Ministry of Economy and Innovation [AGL-2008-04828-C03-02, AGL2011-30519-C03-01]
- Generalitat Valenciana, Spain [PROMETEO/2010/010, PROMETEOII/2014/027]
- CSIC
- European Social Fund
- FPI Predoctoral fellowship from the Spanish MICINN [BES-2012-054595]
- Spanish ministry of Economy and Competitiveness [BIO2012-37161]
- Qatar National Research Fund grant [NPRP 5-298-3-086]
- European Research Council under the European Union [ERC-2012-StG-310325]
- ARS [ARS-0423158, 813335] Funding Source: Federal RePORTER
- ICREA Funding Source: Custom
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The relationship between secondary metabolism and infection in pathogenic fungi has remained largely elusive. The genus Penicillium comprises a group of plant pathogens with varying host specificities and with the ability to produce a wide array of secondary metabolites. The genomes of three Penicillium expansum strains, the main post-harvest pathogen of pome fruit, and one Pencillium italicum strain, a post-harvest pathogen of citrus fruit, were sequenced and compared with 24 other fungal species. A genomic analysis of gene clusters responsible for the production of secondary metabolites was performed. Putative virulence factors in P. expansum were identified by means of a transcriptomic analysis of apple fruits during the course of infection. Despite a major genome contraction, P. expansum is the Penicillium species with the largest potential for the production of secondary metabolites. Results using knockout mutants clearly demonstrated that neither patulin nor citrinin are required by P. expansum to successfully infect apples.
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