ArticlePlanta2007
Role of hydroxyproline-rich glycoproteins in resistance of pearl millet against downy mildew pathogen Sclerospora graminicola.
Article in Planta, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.
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Who cites it
29 citing papers in PubMed, 63 citations in OpenAlex.
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- The Key Roles of ROS and RNS as a Signaling Molecule in Plant-Microbe Interactions.Antioxidants (Basel, Switzerland) · 2023Review
- Comparative transcriptome profiling reveals differential defense responses amongFrontiers in plant science · 2023Article
- Immunity elicitors for induced resistance against the downy mildew pathogen in pearl millet.Scientific reports · 2022Article
- Dual RNA-Sequencing Analysis of Resistant (International journal of molecular sciences · 2021Article
- Purification and biochemical characterization of a novel secretory dipeptidyl peptidase IV from porcine serum.Molecular and cellular biochemistry · 2020Article
- Transcriptome analysis of potato shoots, roots and stolons under nitrogen stress.Scientific reports · 2020Article
- Iron- and Reactive Oxygen Species-Dependent Ferroptotic Cell Death in Rice-The Plant cell · 2019Article
- Lipopolysaccharide-induced priming enhances NO-mediated activation of defense responses in pearl millet challenged with3 Biotech · 2018Article
- Procoagulant serine glycoprotease from Cucumis sativus L.: action on human fibrinogen and fibrin clot.3 Biotech · 2017Article
- Elicitation of resistance and associated defense responses in Trichoderma hamatum induced protection against pearl millet downy mildew pathogen.Scientific reports · 2017Article
- Expression and distribution of extensins and AGPs in susceptible and resistant banana cultivars in response to wounding and Fusarium oxysporum.Scientific reports · 2017Article
- Ultrastructural and Cytological Studies onFrontiers in plant science · 2017Article
- Convergent Evolution of Pathogen Effectors toward Reactive Oxygen Species Signaling Networks in Plants.Frontiers in plant science · 2017Review
- Proteome quantification of cotton xylem sap suggests the mechanisms of potassium-deficiency-induced changes in plant resistance to environmental stresses.Scientific reports · 2016Article
- Variable content and distribution of arabinogalactan proteins in banana (Musa spp.) under low temperature stress.Frontiers in plant science · 2015Article
- Cell wall O-glycoproteins and N-glycoproteins: aspects of biosynthesis and function.Frontiers in plant science · 2014Review
- Current overview of allergens of plant pathogenesis related protein families.TheScientificWorldJournal · 2014Review
- Deciphering the responses of root border-like cells of Arabidopsis and flax to pathogen-derived elicitors.Plant physiology · 2013Article
Corrections and comments
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Authors and funding
6 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Hydroxyproline-rich glycoproteins (HRGPs) are important plant cell wall components involved in plant defense response to pathogen attack. In the present study, a resistant pearl millet (Pennisetum glaucum) cultivar, IP18292, was compared with a susceptible cultivar, 7042S, to investigate the contribution of HRGPs in the successful defense against the phytopathogenic oomycete S. graminicola. Northern hybridization using MeHRGP cDNA, a heterologous probe from cassava, indicated steady accumulation of HRGP transcripts, from 2 h.p.i. onwards with a maximum at 6 h.p.i., in the resistant cultivar. This is followed by HRGPs accumulation at about 8 h.p.i. as revealed by Western-blot analysis. Immunocytochemical localization by tissue printing and confocal immunofluorescence microscopy indicated cell walls of parenchymatic cells and the vascular tissue of coleoptile as sites of HRGP deposition. In vitro studies in the presence of horseradish peroxidase and H2O2 showed cross-linking of pearl millet HRGPs, which occurred parallel to isodityrosine accumulation. Inducible high isodityrosine content was also observed in vivo in the resistant cultivar. Here, H2O2 was found to accumulate as twin burst at 1 and 6 h.p.i., whereas in the susceptible cultivar only an early single peak was detectable. Moreover, the amount of hydroxyproline in HRGPs was about twice as high in the resistant as in the susceptible cultivar. These results suggest that cell wall strengthening in S. graminicola-infected resistant pearl millet is brought about by a combination of polypeptide cross-linking of isodityrosine as well as by the high content of hydroxyproline in HRGPs, and H2O2, in contrast to the susceptible plant.
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