GpRpb-1 from Globodera pallida manipulates plant post-translational modification in host cells to promote nematode infection

Research output: Contribution to conferenceAbstractAcademic

Abstract

In persistent nematode infections plant cell morphology and physiology are manipulated by the nematodes to establish sophisticated feeding structures. Modifications to plant cells are largely attributed to the activity of nematode secreted effectors. SPRYSECs are a remarkably expanded family of effectors identified initially in potato cyst nematodes. While SPRYSECs have been implicated in suppression of plant immunity, their intrinsic role in nematode virulence remains unexplored. GpRpb-1 is a ‘type’ SPRYSEC from Globodera pallida with virulent and avirulent variants present in field populations of the nematode. Y2H screening of a nematode-infected susceptible potato library yielded interacting candidates for a virulent GpRpb-1 that are involved in post-translational modification in the plant. We have independently confirmed that two ligases involved in post-translational modification can interact with virulent and avirulent variants of GpRbp-1 in yeast. A localization study also shows that the candidate interactors localize to the nucleus, which allows interaction with GpRpb-1. Furthermore, upon silencing of the corresponding ligase genes in A. thaliana, we observed significant differences in the amount of developing females present in the roots of nematode-infected plants. These candidate interactors of GpRbp-1 suggest that the intrinsic role of the effector is carried out through manipulation of the plant post-translational modification machinery. Our findings suggest that nematodes are able to use this family of effectors to control different aspects of the plant cell to establish a feeding site. Therefore, our results may provide further insight into the basis of virulence of nematodes in plants.
Original languageEnglish
Pages124-124
Publication statusPublished - 2016
Event32nd Symposium European Society of Nematologist - Universidade do Minho, Braga, Portugal
Duration: 28 Aug 20161 Sep 2016
http://esn2016braga.com/

Conference

Conference32nd Symposium European Society of Nematologist
CountryPortugal
CityBraga
Period28/08/161/09/16
Internet address

Fingerprint Dive into the research topics of 'GpRpb-1 from Globodera pallida manipulates plant post-translational modification in host cells to promote nematode infection'. Together they form a unique fingerprint.

Cite this