Ontology highlight
ABSTRACT:
PROVIDER: PRJNA853345 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR19868815_1.fastq.gz | Fastqsanger.gz | |||
| SRR19868815_2.fastq.gz | Fastqsanger.gz | |||
| SRR19868816_1.fastq.gz | Fastqsanger.gz | |||
| SRR19868816_2.fastq.gz | Fastqsanger.gz | |||
| SRR19868817_1.fastq.gz | Fastqsanger.gz |
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Project description:Cucumber (Cucumis sativus L.) is an economically important vegetable crop distributed in over 80 countries. Downy mildew (DM) caused by the obligate oomycete Pseudoperonospora cubensis is especially destructive in cucumber production. So far, few studies on the changes in proteomes during the P. cubensis infection have been performed. Using a newly developed TMT-LC-MS/MS analysis, the proteomes of DM-resistant variety ‘ZJ’ and DM-susceptible variety ‘SDG’ under the P. cubensis infection were investigated. In total, 6400 proteins were identified, 5629 of which were quantified. The differential accumulated proteins (DAPs) exhibited various biological functions and diverse subcellular localizations. KEGG enrichment analysis showed that various metabolic pathways were significantly altered under the P. cubensis infection, such as terpenoid backbone biosynthesis, and selenocompound metabolism in ZJ, and starch and sucrose metabolism in SDG. Most of the enzymes associated with terpenoid backbone synthesis were significantly accumulated in ZJ rather than in SDG, suggesting that pathogen-induced terpenoids accumulation might play an important role in the resistance against P. cubensis infection. Furthermore, a number of pathogenesis-related proteins and heat shock proteins were identified as DAPs, suggesting that DM resistance was controlled by a complex network. Our data allowed us to identify and screen more potential proteins related to the DM resistance.
2019-11-12 | PXD010844 | Pride
Project description:Downy mildew-resistant cucumber(PI 197088) inoculated with Pseudoperonospora cubensis clean sequence reads within 1 day
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Project description:We used Bio-Rad laboratories, lnc. PCR assay panel to analyze expression levels of MAPK genes under various stress conditions and plant hormone treatments. Cucumber plants of the ‘Jinyan No.4’ cultivar were reared in growth chambers at 28 ± 1 °C with a photoperiod of 16 h light/8 h dark and light intensity of 400 μmol m−2 s−1. Three-week-old seedlings were used for all abiotic and biotic treatments. For heat or cold treatment, the seedlings were subjected to 35 ± 1 °C or 4 ± 1 °C conditions, respectively. The samples for RNA extraction were collected at 0, 1, 2, 4, and 8 h after treatment. For dehydration treatment, the leaves of plants were sampled at 0, 2, 4, and 6 d after watering stopped. For disease treatment, Pseudoperonospora cubensis (P.cubensis) was used to infect the seedlings, and leaves were collected at 0, 1, 2, and 3 d after infection. For hormone treatments, the seedling leaves were sprayed with 100 mM methyl jasmonate (meJA) or 100 mM abscisic acid (ABA) and then sampled at 0, 1, 2, 4, and 8 h intervals. The experiment was designed to examine the transcription patterns of 58 MAPK cascade genes in cucumber in response to three different abiotic stresses (cold, heat, and drought), one biotic stress (Pseudoperonospora cubensis) and two (MeJA and ABA) plant hormone treatments.
2015-05-01 | E-GEOD-68436 | biostudies-arrayexpress
Project description:Grapevine downy mildew is an important disease affecting crop production and causing severe losses. To identify genotype-dependent responses towards this pathogen and to explore the molecular mechanisms involved in grapevine-P. viticola resistance, we have conducted a proteomic analysis of leaf samples from resistant and susceptible grapevine genotypes prior and post-inoculation with the pathogen. Proteins were analyzed by quantitative two-dimensional differential gel electrophoresis (2D-DIGE). The analysis able to identified 50 unique proteins. Functional analysis showed that photosynthesis and metabolism were the main categories differentiating genotypes at 0h and that P. viticola-responsive proteins were mainly involved in photosynthesis, carbohydrate metabolism, stress and defense responses and redox homeostasis. ROS production, total antioxidant capacity and lipid peroxidation on both genotypes were determined and together with the proteome data suggest that Regent presents a strict balance between ROS control and signaling leading to plant cell death activation. Our data reveals the genotype-dependent modulation of plant metabolism and defense responses providing new insights into underlying molecular processes of grapevine resistance against the downy mildew fungus.
2016-12-24 | PXD002920 | Pride
Project description:Using next generation sequencing to develop molecular diagnostics for Pseudoperonospora cubensis, the cucurbit downy mildew pathogen
| PRJNA293744 | ENA
Project description:Pseudoperonospora cubensis overview
| PRJNA80655 | ENA
Project description:The plant vascular system is essential for the enlarged plant stature and successful colonizzation the land by delivering resources throughout the plants and providing mechanical support. Despite several regulators of vascular patterning have been reported, how vascular system mediates stress resistance remain largely unknown. Here we identified a CsIND transcription factor that is specifically expressed in the xylem and phloem tissues in cucumber. Knock down of CsIND by RNAi lead to dwarf plants with enlarged or disorganized vascular systems in all aerial organs. The content of both auxin and jasmonic acid were increased in the CsIND-RNAi lines. Transcriptome profiling by RNA-Seq hints CsIND-regulated gene networks for defense response and vascular development. Biochemical analyses verified that CsIND directly binds to well-known vascular regulators including CsCCR1, CsMYB116, CsYAB5, CsBP and CsAUX, and physically interacts with dorsiventral patterning genes CsKAN2 and CsYAB5. Further, CsIND-RNAi plants displayed significantly enhanced tolerance to nitrogen dificency and resistance to cucumber downy mildew. Therefore, CsIND regulates vascular formation and resistance to biotic and abiotic stresses in cucumber, through the combinarory interactions with well-known vascular regulaors and hormone metabolism and signaling pathways.
2019-09-02 | GSE86496 | GEO
Project description:A comparative proteomic analysis of grapevine leaves from the resistant genotype V. davidii ‘LiuBa-8’ (LB) and susceptible genotype V. vinifera ‘Pinot Noir’ (PN) at 12 hpi was conducted to understand the complex relationship between grapevine and P. viticola and the molecular mechanisms between difference resistant vitis genotypes at the early stage of infection. A total of 444 and 349 differentially expressed proteins (DEPs) were identified in LB and PN respectively at 12 hpi by iTRAQ. MapMan analysis showed that the majority of these DEPs were related to photosynthesis, metabolism, stress and redox. More up-expressed DEPs involved in photosynthesis and less down-expressed DEPs involved in metabolism contribute to the resistance in LB. PR10.2, PR10.3, HSF70.2 and HSP90.6 are proposed to be key proteins in both compatible and incompatible interactions. Accumulation H2O2 established the ROS signaling in incompatible interaction and APXs, GSTs maybe associated with the resistance of grapevine against downy mildew. Moreover, we verified four proteins to ensure the accuracy of proteome data using PRM. Overall, these data provide new insights into molecular events and provide valuable candidate proteins that could be used to illuminate molecular mechanisms underlying the incompatible and compatible interaction in early stage and eventually to be exploited to develop new protection strategy against downy mildew in grapevine.
2021-09-09 | PXD018845 | Pride