Analysis of Globodera rostochiensis effectors reveals conserved functions of SPRYSEC proteins in suppressing and eliciting plant immune responses
Type
ArticleAuthors
Ali, Shawkat
Magne, Maxime
Chen, Shiyan
Obradovic, Natasa
Jamshaid, Lubna
Wang, Xiaohong
Bélair, Guy
Moffett, Peter
KAUST Department
Biological and Environmental Science and Engineering (BESE) DivisionCenter for Desert Agriculture
Date
2015-08-11Permanent link to this record
http://hdl.handle.net/10754/565913
Metadata
Show full item recordAbstract
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 possess characteristics that allow them to be recognized by the plant immune system.Citation
Analysis of Globodera rostochiensis effectors reveals conserved functions of SPRYSEC proteins in suppressing and eliciting plant immune responses 2015, 6 Frontiers in Plant SciencePublisher
Frontiers Media SAJournal
Frontiers in Plant SciencePubMed ID
26322064Additional Links
http://journal.frontiersin.org/article/10.3389/fpls.2015.00623ae974a485f413a2113503eed53cd6c53
10.3389/fpls.2015.00623
Scopus Count
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