A Tomato Cysteine Protease Required for Cf-2 -Dependent Disease Resistance and Suppression of Autonecrosis-Reference-Cited by-同舟云学术

A Tomato Cysteine Protease Required for Cf-2 -Dependent Disease Resistance and Suppression of Autonecrosis

Published:2002-04-26 Issue:5568 Volume:296 Page:744-747
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Krüger Julia¹,Thomas Colwyn M.¹²,Golstein Catherine¹³,Dixon Mark S.¹⁴,Smoker Matthew¹,Tang Saijun¹⁵,Mulder Lonneke¹,Jones Jonathan D. G.¹

Affiliation:

1. The Sainsbury Laboratory, John Innes Centre, Norwich NR4 7UH, UK.

2. School of Biological Sciences, University of East Anglia, Norwich NR4 7TJ, UK.

3. Department of Biology, Indiana University, Bloomington, IN 47405, USA.

4. School of Biological Sciences, University of Southampton, Southampton SO16 7PX, UK.

5. Department of Biology, 108 Coker Hall, University of North Carolina, Chapel Hill, NC 27599–3280, USA.

Abstract

Little is known of how plant disease resistance (R) proteins recognize pathogens and activate plant defenses. Rcr3 is specifically required for the function of Cf-2 , a Lycopersicon pimpinellifolium gene bred into cultivated tomato ( Lycopersicon esculentum ) for resistance to Cladosporium fulvum. Rcr3 encodes a secreted papain-like cysteine endoprotease. Genetic analysis shows Rcr3 is allelic to the L. pimpinellifolium Ne gene, which suppresses the Cf-2 –dependent autonecrosis conditioned by its L. esculentum allele, ne ( necrosis ). Rcr3 alleles from these two species encode proteins that differ by only seven amino acids. Possible roles of Rcr3 in Cf-2–dependent defense and autonecrosis are discussed.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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