Dataset Information

Proteomics offers insight to the mechanism behind Pisum sativum L. response to Pea Seed-borne Mosaic Virus (PSbMV)

ABSTRACT: Pea seed-borne mosaic virus (PSbMV) significantly reduces yields in a broad spectra of legumes. The eukaryotic translation initiation factor has been shown to confer resistance to this pathogen, thus implying that translation and proteome dynamics play a role in resistance. This study presents the results of a proteome-wide analysis of Pisum sativum L. response to PSbMV infection. LC-MS profiling of two contrasting pea cultivars, resistant (B99) and susceptible (Raman) to PSbMV infection, detected >2300 proteins, 116 of which responded to PSbMV ten and/or twenty days post-inoculation. These differentially abundant proteins are involved in number of processes that have previously been reported in the plant-pathogen response, including protein and amino acid metabolism, stress signaling, redox homeostasis, carbohydrate metabolism, and lipid metabolism. We complemented our proteome-wide analysis work with targeted analyses of free amino acids and selected small molecules, fatty acid profiling, and enzyme activity assays. Data from these additional experiments support our findings and validate the biological relevance of the observed proteome changes. We found surprising similarities in the resistant and susceptible cultivars, which implies that a seemingly unaffected plant, with no detectable levels of PSbMV, actively suppresses viral replication.

INSTRUMENT(S): maXis

ORGANISM(S): Pisum Sativum (garden Pea)

TISSUE(S): Leaf

SUBMITTER: Martin Cerny

LAB HEAD: Martin Cerny

PROVIDER: PXD004016 | Pride | 2016-05-31

REPOSITORIES: Pride

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Proteomics offers insight to the mechanism behind Pisum sativum L. response to pea seed-borne mosaic virus (PSbMV).

Cerna Hana H Černý Martin M Habánová Hana H Šafářová Dana D Abushamsiya Kifah K Navrátil Milan M Brzobohatý Břetislav B

Journal of proteomics 20160525

Pea seed-borne mosaic virus (PSbMV) significantly reduces yields in a broad spectra of legumes. The eukaryotic translation initiation factor has been shown to confer resistance to this pathogen, thus implying that translation and proteome dynamics play a role in resistance. This study presents the results of a proteome-wide analysis of Pisum sativum L. response to PSbMV infection. LC-MS profiling of two contrasting pea cultivars, resistant (B99) and susceptible (Raman) to PSbMV infection, detect ...[more]

PMID: 27235724

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Project description:For potato crops, host resistance is currently the most effective and sustainable tool to manage potato root and tuber diseases caused by the plasmodiophorid, Spongospora subterranea. Arguably, zoospore root attachment is the most critical phase of the pathogen infection, however, the mechanisms underlying zoospore root attachment remains unknown. This study investigated the potential role of root cell wall surface polysaccharides and proteins in zoospore root attachment in resistant and susceptible potato cultivars. We first compared the effects of enzymatic removal of root cell wall proteins, N-linked glycans or polysaccharides on S. subterranea attachment to root tissue of resistant and susceptible potato cultivars. Subsequently, mass spectrometry analysis of peptides released by trypsin shaving (TS) of root segments identified 1235 proteins, of which 262 were differentially abundant between the resistant and susceptible cultivars. In particular, proteins associated with glutathione metabolism and lignin biosynthesis were more abundant in the resistant cultivar. Comparison with whole-root proteomic analysis of the same resistant and susceptible cultivars led to identification of 226 proteins unique to the TS dataset, of which 188 were significantly different between cultivars. Among these, the pathogen defence-related cell wall protein stem 28 kDa glycoprotein and two major latex proteins were significantly less abundant in the resistant cultivar compared to the susceptible cultivar. A further major latex protein was detected at reduced levels in the resistant cultivar in both TS and whole-root proteomic datasets. In contrast, in the TS-specific dataset, three glutathione S-transferase proteins were more abundant in the resistant cultivar, while the protein glucan endo-1,3-beta-glucosidase was significantly increased in both the TS and whole-root datasets. These results imply a particular role of major latex proteins and glucan endo-1,3-beta-glucosidase in the regulation of host susceptibility to S. subterranea.

Dataset Information

Proteomics offers insight to the mechanism behind Pisum sativum L. response to Pea Seed-borne Mosaic Virus (PSbMV)

Publications

Proteomics offers insight to the mechanism behind Pisum sativum L. response to pea seed-borne mosaic virus (PSbMV).

Similar Datasets

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