Whole-transcriptome analysis of grapevine-Botrytis cinerea interaction during latent infection of berries
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PROVIDER: PRJNA480021 | ENA |
REPOSITORIES: ENA
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Project description:Purpose: Microarray technologies provide a unique opportunity to deeply investigate the molecular mechanisms involved in plant-pathogen interaction. Botrytis cinerea, is the agent of grapevine grey mould, but in yet uncharacterized environmental conditions, a latent infection can occur determining favourable metabolic and physico-chemical berry modifications which possibly contribute to the typical aromas of “passito” wines (“noble rot”). The present project aims at the identification of the grapevine responses to B. cinerea during fungal colonization in the latent form, in comparison with control berries. Methods: A total of 150 untreated berries were sampled as time 0 of the experiment. Moreover, 300 healthy berries have been artificially inoculated one by one with B. cinerea by injecting conidia under berry skin, in controlled conditions, reproducing an early stage (T1) and a late stage (T2) of noble rot pourri plein. Control samples (300 berries) have been inoculated with water and sampled at the same time of infected berries. The microarray experiments on T0 and healthy or infected samples in biological triplicate resulted in 15 samples to be analyzed (Agilent-048771 4x44K Grape all custom microarray chip; Agilent Technologies, Santa Clara, CA, USA). Conclusions: This work identified important molecular mechanisms involved in Botrytis cinerea colonization of grapevine berries during the noble rot infection.
2019-07-26 | GSE116740 | GEO
Project description:Purpose: High throughput sequencing technologies provide a unique opportunity to deeply investigate the molecular mechanisms involved in plant-pathogen interaction. Botrytis cinerea, is the agent of grapevine grey mould, but in yet uncharacterized environmental conditions, a latent infection can occur determining favourable metabolic and physico-chemical berry modifications which possibly contribute to the typical aromas of “passito” wines (“noble rot”). The present project aims at the identification of the genes deployed by B. cinerea during grape berries colonization in the latent form, in comparison with the saprophytic growth in vitro. Methods: A total of 300 healthy berries have been artificially inoculated one by one with B. cinerea by injecting conidia under berry skin, in controlled conditions, reproducing the pourri plein stage of noble rot. Control samples (300 berries) have been inoculated with water. The saprophytic growth was obtained in liquid nutrient medium in laboratory flasks, and the mycelium collected by filtration. The RNA-sequencing experiments on healthy or infected samples in biological triplicate resulted in 27 data sets to be analyzed (Illumina NextSeq500 paired-end sequencing; 533.779.730 total reads, 150 Gb of data). Conclusions: This work identified important molecular mechanisms involved in Botrytis cinerea colonization of grapevine berries during the noble rot infection.
2019-07-26 | GSE116274 | GEO
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).
2015-08-10 | E-GEOD-65559 | biostudies-arrayexpress
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.
2015-08-10 | GSE65559 | GEO
Project description:Whole-transcriptome microarray analysis of grapevine-Botrytis cinerea interaction during latent infection of berries (“noble rot”)
| PRJNA480023 | ENA
Project description:Whole-transcriptome RNA-seq analysis of grapevine-Botrytis cinerea interaction during latent infection of berries (“noble rot”)
| PRJNA477951 | ENA
Project description:Sets of small RNAs from strains of Botrytis cinerea isolated from tomato or grapevine were compared to determine whether some small RNAs were specific to a population. The small RNAs were mapped to the retrotransposons identified in Sl3, Vv3 or B05.10 genomes.
2022-03-09 | GSE181592 | GEO
Project description:Mature grapevine berries at the harvesting stage (MB) are very susceptible to the gray mold fungus Botrytis cinerea while veraison berries (VB) are not. We conducted simultaneous microscopic and transcriptomic analyses of the pathogen and the host to investigate the infectious process developed by B. cinerea on MB versus VB, and the plant defense mechanisms deployed to stop the fungus development. On the pathogen side, our genome-wide transcriptomic data revealed that B. cinerea genes up-regulated during infection of MB are enriched in functional categories related to necrotrophy such as degradation of plant cell wall, proteolysis, membrane transport, reactive oxygen species generation and detoxification. Quantitative-PCR on a set of representative genes related to virulence and microscopic observations further demonstrated that the infection is also initiated on VB but stops at the penetration stage. On the plant side, genome-wide transcriptomic analysis and metabolic data revealed a defense pathways switch during berry ripening. In response to B. cinerea infection, VB activated a burst of reactive oxygen species (ROS), the salicylate (SA)-dependent defense pathway, the synthesis of the resveratrol phytoalexin and cell-wall strengthening. In opposite, infected MB activated the jasmonate (JA)-dependent pathway which does not stop the fungal necrotrophic process. Grapevine berries at veraison (VB) and harvesting stages (MB) were inoculated with Botrytis cinerea B05-10 and samples were taken at 24h and 48h post-inoculation. An additional uninfected control sample taken at 0h post-inoculation was included in the experimental design. 3 replicates per sample were performed. The total-RNA samples were labeled and used for hybridization on NimbleGen 12plex Vitis vinifera gene expression array.
2015-08-08 | E-GEOD-65969 | biostudies-arrayexpress
Project description:Mature grapevine berries at the harvesting stage (MB) are very susceptible to the gray mold fungus Botrytis cinerea while veraison berries (VB) are not. We conducted simultaneous microscopic and transcriptomic analyses of the pathogen and the host to investigate the infectious process developed by B. cinerea on MB versus VB, and the plant defense mechanisms deployed to stop the fungus development. On the pathogen side, our genome-wide transcriptomic data revealed that B. cinerea genes up-regulated during infection of MB are enriched in functional categories related to necrotrophy such as degradation of plant cell wall, proteolysis, membrane transport, reactive oxygen species generation and detoxification. Quantitative-PCR on a set of representative genes related to virulence and microscopic observations further demonstrated that the infection is also initiated on VB but stops at the penetration stage. On the plant side, genome-wide transcriptomic analysis and metabolic data revealed a defense pathways switch during berry ripening. In response to B. cinerea infection, VB activated a burst of reactive oxygen species (ROS), the salicylate (SA)-dependent defense pathway, the synthesis of the resveratrol phytoalexin and cell-wall strengthening. In opposite, infected MB activated the jasmonate (JA)-dependent pathway which does not stop the fungal necrotrophic process.
2015-08-08 | GSE65969 | GEO
Project description:Noble rot results from atypical infections of ripe grape berries by Botrytis cinerea. Unlike bunch rot, noble rot promotes favorable changes in grape berries and accumulation of secondary metabolites that enhance wine grape quality. Noble rot-infected berries of Sémillon, a white-skinned variety, were collected over three years from a commercial vineyard at the same time fruit were harvested for botrytized wine production. Transcriptomic and metabolomic data were integrated to identify pathways associated with distinct stages of noble rot. Botrytis induced the expression of known key regulators of pathways in secondary metabolism associated with berry ripening. The activation by Botrytis during noble rot of metabolic pathways associated with berry ripening was further supported by comparisons with transcriptomes of red-skinned varieties at véraison. A prominent and common outcome of noble rot and berry ripening was the enhancement of the phenylpropanoid metabolism. Induced synthesis of stilbenes, flavonoids, and anthocyanins was supported by both transcriptional and metabolite analyses. Enzyme assays and targeted gene expression analyses of samples from the three distinct years confirmed that the activation of central and peripheral phenylpropanoid pathways is a consistent hallmark of noble rot. Finally, we show that the impact of noble rot on grape metabolism is still detectable in botrytized wines. These results demonstrate that despite the late stage of terminal senescence of a plant organ, a biotic stress can cause a major reprogramming of plant metabolism leading, in case of noble rot, to the synthesis of important metabolites for grape berry flavor and aroma. The experimental design consists of 4 treatments, berries at 3 distinct stages of noble rot and berries without apparent symptoms of infection. From each treatment a total of 4 biological replicates were sequenced with RNAseq, each replicate corresponded to independent pools of 10-15 berries harvested from adjacent grapevines.
2015-10-12 | E-GEOD-67932 | biostudies-arrayexpress