DOI: 10.1046/j.1365-313x.1995.8060933.x. The coat protein of potato virus X is a strain‐specific elicitor of <i>Rx</i>1‐mediated virus resistance in potato

The coat protein of potato virus X is a strain‐specific elicitor of Rx1‐mediated virus resistance in potato

10.1046/j.1365-313x.1995.8060933.x

Crossref journal-article

Wiley

The Plant Journal (311)

Abstract

SummaryThe Rx1 gene in potato confers extreme resistance to potato virus X (PVX). To investigate the mechanism and elicitation of Rx resistance, protoplasts of potato cv. Cara (Rx1 genotype) and Maris Bard (rx1 genotype) were inoculated with PVX and tobacco mosaic virus (TMV). At 24 h post‐inoculation in Maris Bard protoplasts there was at least 100‐fold more PVX RNA than in protoplasts of Cara. TMV RNA accumulated to the same level in both types of protoplast. However, when the TMV was inoculated together with PVX the accumulation of TMV RNA was suppressed in the Cara (Rx1 genotype) protoplasts to the same extent as PVX. The Rx1 resistance also suppressed accumulation of a recombinant TMV in which the coat protein gene was replaced with the coat protein gene of PVX. It is therefore concluded that Rx1‐mediated resistance is elicited by the PVX coat protein, independently of any other proteins encoded by PVX. The domain of the coat protein with elicitor activity was localized by deletion and mutation analysis to the structural core of a non‐virion form of the coat protein.

Bibliography

Bendahmane, A., KÃ¶hm, B. A., Dedi, C., & Baulcombe, D. C. (1995). The coat protein of potato virus X is a strainâspecific elicitor of Rx1âmediated virus resistance in potato. The Plant Journal, 8(6), 933â941. Portico.

Authors 4

Abdelhafid Bendahmane (first)
Bärbel A. Köhm (additional)
Cynthia Dedi (additional)
David C. Baulcombe (additional)

References 0 Referenced 160

None

Dates

Type	When
Created	14 years, 10 months ago (Oct. 18, 2010, 1:21 p.m.)
Deposited	1 year, 10 months ago (Oct. 26, 2023, 10:34 a.m.)
Indexed	4 weeks ago (Aug. 5, 2025, 8:48 a.m.)
Issued	29 years, 9 months ago (Dec. 1, 1995)
Published	29 years, 9 months ago (Dec. 1, 1995)
Published Online	22 years, 5 months ago (April 2, 2003)
Published Print	29 years, 9 months ago (Dec. 1, 1995)

Funders 0

None

BibTeX

@article{Bendahmane_1995, title={The coat protein of potato virus X is a strain‐specific elicitor of Rx1‐mediated virus resistance in potato}, volume={8}, ISSN={1365-313X}, url={http://dx.doi.org/10.1046/j.1365-313x.1995.8060933.x}, DOI={10.1046/j.1365-313x.1995.8060933.x}, number={6}, journal={The Plant Journal}, publisher={Wiley}, author={Bendahmane, Abdelhafid and Köhm, Bärbel A. and Dedi, Cynthia and Baulcombe, David C.}, year={1995}, month=dec, pages={933–941} }

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