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GNPS Metabolomics of plant pathogen Streptomyces sp. 11-1-2

ABSTRACT: Metabolomics profile of Streptomyces sp. 11-1-2, a plant pathogen isolated from common scab lesions on potato in Newfoundland, Canada. Positive and negative ionisation mode. The deposition contains RAW and mzXML.

INSTRUMENT(S): Q Exactive

ORGANISM(S): Streptomyces Sp. 11-1-2 (ncbitaxon:1851167)

SUBMITTER: Dawn R. D. Bignell

PROVIDER: MSV000086628 | GNPS | Mon Dec 21 18:23:00 GMT 2020

REPOSITORIES: GNPS

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Nigericin and Geldanamycin Are Phytotoxic Specialized Metabolites Produced by the Plant Pathogen Streptomyces sp. 11-1-2.

Díaz-Cruz Gustavo A GA Liu Jingyu J Tahlan Kapil K Bignell Dawn R D DRD

Microbiology spectrum 20220228 2

Streptomyces bacteria are a key source of microbial specialized metabolites with useful applications in medicine and agriculture. In addition, some species are important plant pathogens and cause diseases such as potato scab, which reduces the quality and market value of affected potato crops. Most scab-associated Streptomyces spp. produce the phytotoxic metabolite thaxtomin A as the principal pathogenicity factor. However, recent reports have described scab-causing strains that do ...[more]

PMID: 35225656

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Metabolomics of plant pathogen Streptomyces sp. 11-1-2

Project description:Metabolomics profile of Streptomyces sp. 11-1-2, a plant pathogen isolated from common scab lesions on potato in Newfoundland, Canada. Positive and negative ionisation mode. The deposition contains RAW and mzXML.

2020-12-21 | MSV000086628 | MassIVE

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Project description:Aquaporin-11 (AQP11), a new member of the aquaporin family, is localized in the endoplasmic reticulum (ER). Aqp11–/– mice neonatally suffer from polycystic kidneys derived from the proximal tubule. Its onset is proceeded by the vacuolization of ER. However, the mechanism for the formation of vacuoles and the development of cysts remain to be clarified. Here, we show that Aqp11–/– mice and polycystic kidney disease animals share a common pathogenic mechanism of cyst formation. Keywords: Geneexpression profile of Aqp11 knokout mouse kidney

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Fragmentation of tRNA in Phytophthora infestans asexual life cycle stages and during host plant infection [host plant infection]

Project description:Background: The oomycete Phytophthora infestans possesses active RNA silencing pathways, which presumably enable this plant pathogen to control the large numbers of transposable elements present in its 240 Mb genome. Small RNAs (sRNAs), central molecules in RNA silencing, are known to also play key roles in this organism, notably in regulation of critical effector genes needed for infection of its potato host. Results: To identify additional classes of sRNAs in oomycetes, we mapped deep sequencing reads to transfer RNAs (tRNAs) thereby revealing the presence of 19-40 nt tRNA-derived RNA fragments (tRFs). Northern blot analysis identified abundant tRFs corresponding to half tRNA molecules. Some tRFs accumulated differentially during infection, as seen by examining sRNAs sequenced from P. infestans-potato interaction libraries. The putative connection between tRF biogenesis and the canonical RNA silencing pathways was investigated by employing hairpin RNA-mediated RNAi to silence the genes encoding P. infestans Argonaute (PiAgo) and Dicer (PiDcl) endoribonucleases. By sRNA sequencing we show that tRF accumulation is PiDcl1-independent, while Northern hybridizations detected reduced levels of specific tRNA-derived species in the PiAgo1 knockdown line. Conclusions: Our findings extend the sRNA diversity in oomycetes to include fragments derived from non-protein-coding RNA transcripts and identify tRFs with elevated levels during infection of potato by P. infestans.

2014-12-12 | GSE63292 | GEO

Fragmentation of tRNA in Phytophthora infestans asexual life cycle stages and during host plant infection [host plant infection]

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Project description:To effectively manage resources, regulatory cross-talk between biological processes within an organism is essential. An emerging area in plant research focuses on antagonism between regulatory systems controlling growth/development and those governing immunity. Such crosstalk represents a point of vulnerability for pathogens to exploit. Here we show that the notorious potato blight pathogen Phytophthora infestans promotes a growth and development pathway in order to antagonise plant immunity. AVR2, an effector protein secreted by P. infestans, has been shown to interact with potato BSL1, a putative phosphatase implicated in brassinosteroid hormone signalling. Plants expressing AVR2 exhibit transcriptional and phenotypic overlaps with an over-active brassinosteroid signalling pathway, and have compromised immunity. The activity of AVR2 leads to up-regulation of a functional orthologue of AtHBI1, known to facilitate cross-talk between the brassinosteroid pathway and immune signalling in Arabidopsis. Transient expression of potato HBI1-like compromises immunity and enhances leaf colonisation by P. infestans. Knowledge of how pathogens manipulate regulatory cross-talk governing resource allocation in plants will inform crop breeding efforts of the future; helping to maximise both yield and resistance to ensure food security as pressure on our agricultural systems increases.

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Expression data of Hmg20 knock down I/11 cells and controls

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Project description:In this study we compare the transcriptome response of two potato varieties Atlantic and NY138 to the infection by Candidatus Liberibacter solanacearum. Four weeks old potato plant grown in growth chamber were infested with potato psyllid to transmit the pathogen Candidatus Liberibacter solanacearum. Three weeks after infestation leaf samples were collected for RNA extraction and transcriptome analysis. This is the first transcriptome study on this potato disease.

2017-11-13 | GSE92312 | GEO