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RNA sequencing of tomato seedlings infected with Fusarium responding to an Artemissia Absinthium essential oil

ABSTRACT: Tomato seedlings with coated seeds of 12days responding to an Artemissia Absinthium essential oil shows increased tolarance to Fusarium

ORGANISM(S): Solanum lycopersicum

PROVIDER: GSE186754 | GEO | 2022/03/25

REPOSITORIES: GEO

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RNA sequencing of tomato seedlings infected with Fusarium responding to an Artemissia Absinthium essential oil

Project description:RNA sequencing of tomato seedlings infected with Fusarium responding to an Artemissia Absinthium essential oil

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2024-11-30 | GSE255960 | GEO

Tomato xylem proteome composition following infection by Fusarium oxysporum

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Transcriptome analysis reveals the response mechanism of Frl-mediated resistance to Fusarium oxysporum f. sp. radicis-lycopersici (FORL) infection in tomato

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Fusarium oxysporum f.sp. radicis-lycopersici induces distinct transcriptome reprogramming in resistant and susceptible isogenic tomato lines

Project description:Background: Fusarium oxysporum f.sp. radicis-lycopersici (FORL) is one of the most destructive necrotrophic pathogen of tomato, causing important field and greenhouse yield losses. Despite the relevant economic impact, little is known about the molecular mechanisms regulating the Fusarium oxysporum f.sp. radicis-lycopersici resistance in tomato. Results: A transcriptomic experiment was carried out in order to investigate major mechanisms of FORL response in resistant and susceptible isogenic tomato lines. The microarray analysis at 15 DPI reveals a distinct gene expression pattern between the two genotypes in the inoculated vs not inoculated conditions, furthermore confirmed by a q-PCR experiment. A model of plant response for both compatible and incompatible reaction was proposed. In particular, in the incompatible interaction an activation of defense genes related to secondary metabolites production and tryptophan metabolism was observed. Moreover, the cell osmotic potential maintenance after the FORL roots challenging was mediated by a dehydration induced protein. As for the compatible interaction the activation of an oxidative burst mediated by Peroxidases and a Cytochrome monooxigenase, conducedthe cells to degeneration and necrosis. Conclusions: Our work allowed a comprehensive understanding of the molecular basis of the tomato-FORL interaction. Result obtained emphasizes a different transcriptional reaction between the resistant and the susceptible genotype to FORL challenging. Our findings could lead to the improvement of strategies of this disease control.

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Transcriptome analysis of Clavibacter michiganensis subsp. michiganensis infected tomato seedlings

Project description:The gram- positive bacterial pathogen Clavibacter michiganensis subsp. michiganensis (Cmm) causes huge economic losses by infecting tomato plants worldwide. Cmm can be spread by contaminated seeds and transplants, penetrating the plant through natural openings or wounds and is transferred through the plant xylem. While in recent years significant progress has been made to elucidate plant responses to pathogenic gram-negative bacteria by gene expression studies, the molecular mechanisms that lead to disease symptoms caused by gram-positive bacteria like Cmm remain elusive. An indigenous virulent Cmm strain isolated from a farm crop of Pomodoro tomatoes in southern Greece was used for the infection of EKSTASIS F1 hybrid tomato seedlings. Here, we present the results of a deep RNA- sequencing (RNA-seq) analysis performed to characterize the dynamic expression profile of tomato genes upon Cmm infection.

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Genetic Dissection of Photosynthetic Organs Contribution to Seed Oil Accumulation in Arabidopsis seeds

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Expression analysis of seeds and seedlings of tomato growing on regular MS medium or MS medium supplemented with Helical multi-walled carbon nanotubes (Helical MWCNTs) in concentration 25 ug/ml

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Identification and functional characterization of calcineurin substrates in tomato Fusarium wilt fungus

Project description:Tomato is a worldwide economic crop, and Fusarium wilt is one of the important tomato diseases which is caused by Fusarium oxysporum f. sp. lycopersici (Fol). The typical symptoms are yellowing and wilting on leaves and browning vascular tissues. Subsequently, it may cause tomato to die or no fruit production. Calcineurin is a heterodimeric phosphatase which can be activated by Ca2+/calmodulin and can dephosphorylate downstream substrates to regulate stress survival, growth, sexual differentiation, and virulence. Calcineurin substrates have been studied in Saccharomyces cerevisiae by phosphoproteomics and quantitative mass spectrometry. To date, there is no research related to proteome analysis of calcineurin downstream substrates in plant pathogens. In our previous study, it revealed that calcineurin is responsible for hyphal growth, conidia formation, chlamydospore formation, and virulence in Fol. In our phosphoproteomics analysis, we compared the protein abundance of wild -type and Δcna1 strains with calcium or non-calcium induced condition. Next, we used Scanprosite and Uniport to predict conserved docking and dephosphorylated sites within those proteins by the abundance more than 2-fold distribution. Finally, we obtained 59 putative calcineurin substrates. According to GO enrichment analysis, these substrates included transcription factors, transmembrane transporters, protein serine/threonine kinase activator, and some uncharacterized proteins. We propose that these putative substrates may play important roles to control physiological function and virulence in Fol.

2024-09-22 | PXD045580 | JPOST Repository

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