C. Dahout - Gonzalez

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Proteins belonging to the cerato-platanin family are small proteins with phytotoxic activity. A member of this family, BcSpl1, is one of the most abundant proteins in the Botrytis cinerea secretome. Expression analysis of the bcspl1 gene revealed that the transcript is present in every condition studied, showing the highest level in planta at the late(More)
The extracellular proteome, or secretome, of phytopathogenic fungi is presumed to be a key element of their infection strategy. Especially interesting constituents of this set are those proteins secreted at the beginning of the infection, during the germination of conidia on the plant surfaces or wounds, since they may play essential roles in the(More)
Phytopathogenic fungi can degrade xylan, an abundant hemicellulose in plant cell walls, by the coordinate action of a group of extracellular enzymes. Among these, endo-beta-1,4-xylanases carry out the initial breakdown by cleaving internal bonds in the polymer backbone. We have isolated and characterized a gene, xyn11A, coding for an endo-beta-1,4-xylanase(More)
The Botrytis cinerea xylanase Xyn11A has been previously shown to be required for full virulence of this organism despite its poor contribution to the secreted xylanase activity and the low xylan content of B. cinerea hosts. Intriguingly, xylanases from other fungi have been shown to have the property, independent of the xylan degrading activity, to induce(More)
Protein O-glycosylation is crucial in determining the structure and function of numerous secreted and membrane-bound proteins. In fungi, this process begins with the addition of a mannose residue by protein O-mannosyltransferases (PMTs) in the lumen side of the ER membrane. We have generated mutants of the three Botrytis cinerea pmt genes to study their(More)
SUMMARY Genetic transformation is generally carried out in Botrytis cinerea by random integration of the foreign DNA into the genome, resulting in transformants that show differences among them in, for example, the expression of a reporter gene. Here we report a system for site-directed integration in which a novel recipient strain containing a 5'-truncated(More)
Cerato-platanin family proteins are secreted and have been found in both the fungal cell wall and the extracellular medium. They elicit defence responses in a variety of plants and have been proposed to be perceived as pathogen-associated molecular patterns (PAMPs) by the plant immune system, although, in the case of the necrotroph Botrytis cinerea, the(More)
BcIEB1 is a very abundant protein in the secretome of Botrytis cinerea but it has no known function and no similarity to any characterized protein family. Previous results suggested that this protein is an elicitor of the plant defense system. In this work we have generated loss-of-function B. cinerea mutants lacking BcIEB1 and we have expressed the protein(More)
A new cDNA encoding hyoscyamine 6beta-hydroxylase (H6H, EC, a bifunctional enzyme catalyzing the last two steps in the biosynthesis of scopolamine, was isolated from Atropa baetica roots (GenBank accession no. EF442802). The full cDNA sequence showed an ORF of 1035bp, coding for a protein with 344 amino acid residues. Sequence analyses at the(More)