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An Expansin-Like Candidate Effector Protein from Pratylenchus penetrans Modulates Immune Responses in Nicotiana benthamiana

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dc.contributor.authorVieira, Pauloen
dc.contributor.authorNemchinov, Lev G.en
dc.contributor.departmentSchool of Plant and Environmental Sciencesen
dc.date.accessioned2021-03-31T12:23:44Zen
dc.date.available2021-03-31T12:23:44Zen
dc.date.issued2020-03en
dc.description.abstractThe root lesion nematode (RLN) Pratylenchus penetrans is a migratory species that attacks a broad range of crops. After the RLN is initially attracted to host roots by root exudates and compounds, it releases secretions that are critical for successful parasitism. Among those secretions are nematode virulence factors or effectors that facilitate the entry and migration of nematodes through the roots and modulate plant immune defenses. The recognition of the effectors by host resistance proteins leads to effector-triggered immunity and incompatible plant- nematode interactions. Although many candidate effectors of the RLN and other plant-parasitic nematodes have been identified, the detailed mechanisms of their functions and particularly, their host targets remain largely unexplored. In this study, we sequenced and annotated genes encoding expansin-like proteins, which are major candidate effectors of P. penetrans. One of the genes, Pp-EXPB1, which was the most highly expressed during nematode infection in different plant species, was further functionally characterized via transient expression in the model plant Nicotiana benthamiana and global transcriptome profiling of gene expression changes triggered by this candidate effector in plants. As a result of this investigation, the biological roles of Pp-EXPB1 in nematode parasitism were proposed, the putative cellular targets of the proteins were identified, and the molecular mechanisms of plant responses to the nematode-secreted proteins were outlined.en
dc.description.adminPublic domain – authored by a U.S. government employeeen
dc.description.notesThis project was supported by U.S. Department of AgricultureAgricultural Research Service grant CRIS #8042-21000-300-00D.en
dc.description.sponsorshipU.S. Department of AgricultureAgricultural Research Service grant CRIS [8042-21000-300-00D]en
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.1094/PHYTO-09-19-0336-Ren
dc.identifier.eissn1943-7684en
dc.identifier.issn0031-949Xen
dc.identifier.issue3en
dc.identifier.pmid31680651en
dc.identifier.urihttp://hdl.handle.net/10919/102904en
dc.identifier.volume110en
dc.language.isoenen
dc.rightsPublic Domainen
dc.rights.urihttp://creativecommons.org/publicdomain/mark/1.0/en
dc.subjectexpansin-like candidate effectoren
dc.subjectexpression profilingen
dc.subjectnematologyen
dc.subjectNicotiana benthamianaen
dc.subjectPratylenchus penetransen
dc.subjecttransient expressionen
dc.titleAn Expansin-Like Candidate Effector Protein from Pratylenchus penetrans Modulates Immune Responses in Nicotiana benthamianaen
dc.title.serialPhytopathologyen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten
dc.type.dcmitypeStillImageen

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