Analysis of Globodera rostochiensis effectors reveals conserved functions of SPRYSEC proteins in suppressing and eliciting plant immune responses

Frontiers in Plant Science
Shawkat AliPeter Moffett

Abstract

Potato cyst nematodes (PCNs), including Globodera rostochiensis (Woll.), are important pests of potato. Plant parasitic nematodes produce multiple effector proteins, secreted from their stylets, to successfully infect their hosts. These include proteins delivered to the apoplast and to the host cytoplasm. A number of effectors from G. rostochiensis predicted to be delivered to the host cytoplasm have been identified, including several belonging to the secreted SPRY domain (SPRYSEC) family. SPRYSEC proteins are unique to members of the genus Globodera and have been implicated in both the induction and the repression of host defense responses. We have tested the properties of six different G. rostochiensis SPRYSEC proteins by expressing them in Nicotiana benthamiana and N. tabacum. We have found that all SPRYSEC proteins tested are able to suppress defense responses induced by NB-LRR proteins as well as cell death induced by elicitors, suggesting that defense repression is a common characteristic of members of this effector protein family. At the same time, GrSPRYSEC-15 elicited a defense responses in N. tabacum, which was found to be resistant to a virus expressing GrSPRYSEC-15. These results suggest that SPRYSEC proteins may po...Continue Reading

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Citations

Nov 5, 2016·Frontiers in Plant Science·Amalia Diaz-GranadosGeert Smant
Oct 24, 2018·Molecular Plant-microbe Interactions : MPMI·Long-Jiao HuJian-Ren Ye
Jun 7, 2019·BMC Genomics·Michael SabehBenjamin Mimee
Oct 17, 2019·Frontiers in Plant Science·Kazuki SatoKen Shirasu
Mar 29, 2019·Current Opinion in Plant Biology·Paulo Vieira, Cynthia Gleason
Mar 13, 2021·Molecular Plant Pathology·James A PriceJohn T Jones

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Datasets Mentioned

BETA
KF963513.1
KF963514.1

Methods Mentioned

BETA
PCR

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