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The VELVET complex in the gray mold fungus Botrytis cinerea: impact of BcLAE1 on differentiation, secondary metabolism and virulence

ABSTRACT: Full transcriptomes of the Botrytis cinerea wild-type strain B0510 and the null-mutants deltaBcVEL1 and deltaBcLAE1, cultured onto solid grape juice medium with cellophane overlays , were compared to identify BcVEL1 or/and BcLAE1-dependent genes. The Botrytis cinerea wild-type strain and the null-mutants deltaBcVEL1 and BcLAE1 were cultured for 48h onto solid grape juice medium with cellophane overlays. 4 replicates were performed. The 12 total-RNA samples (3 strains* 4 replicates) were used for hybridization on NimbleGen 4plex gene expression arrays (20,885 gene models from Botrytis cinerea with three 60-mer probes per gene).

ORGANISM(S): Botrytis cinerea

SUBMITTER: Adeline SIMON

PROVIDER: E-GEOD-63021 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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The VELVET Complex in the Gray Mold Fungus Botrytis cinerea: Impact of BcLAE1 on Differentiation, Secondary Metabolism, and Virulence.

Schumacher Julia J Simon Adeline A Cohrs Kim C KC Traeger Stefanie S Porquier Antoine A Dalmais Bérengère B Viaud Muriel M Tudzynski Bettina B

Molecular plant-microbe interactions : MPMI 20150623 6

Botrytis cinerea, the gray mold fungus, is an important plant pathogen. Field populations are characterized by variability with regard to morphology, the mode of reproduction (conidiation or sclerotia formation), the spectrum of secondary metabolites (SM), and virulence. Natural variation in bcvel1 encoding the ortholog of Aspergillus nidulans VeA, a member of the VELVET complex, was previously shown to affect light-dependent differentiation, the formation of oxalic acid (OA), and virulence. To ...[more]

PMID: 25625818

Similar Datasets

The VELVET complex in the gray mold fungus Botrytis cinerea: impact of BcLAE1 on differentiation, secondary metabolism and virulence

Project description:Full transcriptomes of the Botrytis cinerea wild-type strain B0510 and the null-mutants deltaBcVEL1 and deltaBcLAE1, cultured onto solid grape juice medium with cellophane overlays , were compared to identify BcVEL1 or/and BcLAE1-dependent genes.

2015-02-01 | GSE63021 | GEO

Light and BcLTF1-dependent gene expression profiles in the phytopathogenic fungus Botrytis cinerea

Project description:Full transcriptomes of the Botrytis cinerea wild-type strain B0510 and the null-mutant deltaBcLTF1, cultured in continuous darkness or submitted to a light stimulation, were compared to identify light- or/and BcLTF1-dependent genes. The Botrytis cinerea wild-type strain and the null-mutant deltaBcLTF1 were cultured for 52h in continuous darkness ; then, cultures were exposed for 60 min to light before harvest (L) or were harvested after additional 60 min darkness (D). 4 replicates were performed. The 16 total-RNA samples (4 conditions* 4 replicates) were used for hybridization on NimbleGen 4plex gene expression arrays (20,885 gene models from Botrytis cinerea with three 60-mer probes per gene).

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Project description:Full transcriptomes of the Botrytis cinerea wild-type strain B0510 inoculated on mature grapevine berries (Marselan cultivar) at 16h, 24h, 48h, and in vitro were compared to identify B. cinerea genes diffentially expressed during the infection stages. Grapevine berries were inoculated with Botrytis cinerea conidia and samples were taken at 16h, 24h and 48 hours post-inoculation. An additional control sample corresponding to mycelium growing on static liquid minimal medium was included in the experimental design in order to identify genes that would be differentially expressed between in vitro and in planta growth conditions. 3-4 replicates were performed. The 13 total-RNA samples were used for hybridization on NimbleGen 4plex gene expression arrays (20,885 gene models from Botrytis cinerea with three 60-mer probes per gene).

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Light and BcLTF2-dependent gene expression profiles in the phytopathogenic fungus Botrytis cinerea

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2011-03-01 | E-GEOD-24444 | biostudies-arrayexpress

Phosphoproteome profiles of the phytopathogenic fungi Alternaria brassicicola and Botrytis cinerea

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2014-06-09 | PXD000817 | Pride

Genome-wide analysis of Botrytis cinerea genes targeting plant cell walls of different hosts [tomato]

Project description:The cell wall is among the first plant structures encountered by necrotrophic fungal pathogens, such as Botrytis cinerea. The composition of plant cell walls varies depending on the species, type of cell or tissue, and stage of development. Cell walls are important reservoirs of energy-rich sugars for pathogens, but also are barriers that impair colonization of host tissues. Growing fungal hyphae secrete enzymes that hydrolyze cell wall polysaccharides. Degradation of wall polysaccharides provides nutrients for the pathogen and improves the access of secreted Botrytis enzymes to all host cell wall targets and cytoplasmic constituents. Destruction of host cell walls results in tissue maceration, a hallmark of diseases caused by Botrytis. The Botrytis genome encodes 1,155 predicted carbohydrate-active enzyme (CAZy) genes; products of 275 are potentially secreted. Transcriptome sequencing identified Botrytis CAZy genes expressed during infections of lettuce leaves, ripe tomato fruit and grape berries. On all three hosts, Botrytis expresses a common group of 229 predicted CAZy genes including 28 pectin-modifying enzymes, 21 hemicellulose-modifying proteins, 18 enzymes targeting pectin and hemicellulose side-branches, and 16 enzymes that may degrade cellulose. Pectin polysaccharides are abundant in grape and tomato cell walls, but lettuce leaf walls are predominantly hemicelluloses and cellulose. These results suggest that Botrytis targets similar wall polysaccharide networks; e.g., pectins, on leaves and fruit, but also attacks unique host wall polysaccharide substrates The diversity of the Botrytis CAZy proteins may be partly responsible for its wide host range. 3 biological replicates consisting of groups of infected tomato fruits from different plants

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