Abstract
Botrytis cinerea is one of the most relevant plant pathogenic fungi. The first step during its infection process is the germination of the conidia. Here, we report on the first proteome analysis during the germination of B. cinerea conidia, where 204 spots showed significant differences in their accumulation between ungerminated and germinated conidia by two-dimensional polyacrylamide gel electrophoresis and qPCR. The identified proteins were grouped by gene ontology revealing that the infective tools are mainly preformed inside the ungerminated conidia allowing a quick fungal development at the early stages of conidial germination. From 118 identified spots, several virulence factors have been identified while proteins, such as mannitol-1-phosphate dehydrogenase, 6,7-dimethyl-8-ribityllumazine synthase or uracil phosphoribosyltransferase, have been disclosed as a new potential virulence factors in botrytis whose role in pathogenicity needs to be studied to gain new insights about the role of these proteins as therapeutic targets and virulence factors.
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Abbreviations
- SDW:
-
Sterile distilled water
- HPI:
-
Hour post inoculation
- GO:
-
Gene ontology
- ID:
-
Identification
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Acknowledgments
We thank the Prof. Dr. Tudzynski for donated the strain B. cinerea B05.10 used in this study. This research has been financed by the Spanish Government DGICYT—AGL2009-13359-CO2/AGR and AGL2012-39798-C02-02 (www.micinn.es/portal/site/MICINN/), by the Andalusian Government (Junta de Andalucía, PO7-FQM-002689; www.juntadeandalucia.es/innovacioncienciayempresa), and by the CeiA3 International Campus of excellence in Agrifood (18INACO177.002AA; http://www.uco.es/cei-A3/). Victoria E. González-Rodríguez was supported by the grant FPU of the Ministerio de Educación, Government of Spain (AP2009-1309). Eva Liñeiro was supported by a FPI grant from the University of Cadiz (2010-152).
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Communicated by Erko Stackebrandt.
Victoria E. González-Rodríguez and Eva Liñeiro have contributed equally to this work.
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González-Rodríguez, V.E., Liñeiro, E., Colby, T. et al. Proteomic profiling of Botrytis cinerea conidial germination. Arch Microbiol 197, 117–133 (2015). https://doi.org/10.1007/s00203-014-1029-4
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DOI: https://doi.org/10.1007/s00203-014-1029-4