Paper · 2011 · Socio-Environmental Systems Modeling

Functional analysis of the Verticillium resistance gene Ve1

Z. Zhang

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claims
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verbatim quotes
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citations
2
research areas
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Open access

Abstract

PO-54 Functional analysis of the Verticillium resistance gene Ve1 Zhao Zhang Lab of Phytopathology, Wageningen University, the Netherlands Race-specific pathogen resistance in plants is governed by corresponding plant resistance (R) genes and pathogen avirulence (Avr) genes. R protein-mediated recognition of an Avr protein usually activates an hypersensitive response (HR), which is necrosis of plant tissue surrounding the infection site. Verticillium spp. are economically important pathogens that cause vascular wilt diseases in a wide range of plant species worldwide. A locus responsible for resistance against race 1 strains of Verticillium has been cloned from tomato (Solanum lycopersicum). This locus, named Ve, comprises two closely linked inversely oriented R genes, Ve1 and Ve2, which encode extracellular leucine-rich repeat (eLRR) receptor-like proteins (RLPs). It has recently been demonstrated Ve1, but not Ve2, acts as a functional Verticillium resistance gene in tomato and Arabidopsis. Recently, the Verticillium race 1 elicitor that activates Ve1-mediated resistance, Ave1, was identified. Co-expression of the Ave1 and Ve1 through Agrobacterium tumefaciens-mediated transient expression (agroinfiltration) can successfully induce HR in Nicotiana tabacum (tobacco). In this PhD project, several research lines using Arabidopsis and tomato will be followed with the aim to investigate: 1.) localization of Ve1 protein; 2.) Why Ve2 is not a functional resistance protein; 3.) how eLRRs of Ve1 mediate interactions with their ligand Ave1; 4.) what partner proteins Ve1 associates with and the composition of the Ve-mediated defence signal transduction pathway.

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Claims 4

Observationobservedcited backgroundmeasured

Claim · model-written summary

The tomato Ve locus comprises two closely linked, inversely oriented resistance genes, Ve1 and Ve2.

Taxon
tomato (Solanum lycopersicum)Solanum lycopersicume0
Interactor
VerticilliumVerticilliume0pathogen
Gene
Vee0
Outcome
two closely linked inversely oriented R genes, Ve1 and Ve2e0

Not reportedDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“A locus responsible for resistance against race 1 strains of Verticillium has been cloned from tomato (Solanum lycopersicum). This locus, named Ve, comprises two closely linked inversely oriented R genes, Ve1 and Ve2”

✓ located verbatim in the source · abstract, characters 575–791 · show in text ↑
Observationobservedcited backgroundpositivemeasured

Claim · model-written summary

Ve1, unlike Ve2, functions as a Verticillium resistance gene in tomato and Arabidopsis.

Interactor
VerticilliumVerticilliume0pathogen
Gene
Ve1e0
Outcome
functional Verticillium resistance genee0
Comparator
Ve2e0

Not reportedDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Ve1, but not Ve2, acts as a functional Verticillium resistance gene in tomato and Arabidopsis”

✓ located verbatim in the source · abstract, characters 912–1005 · show in text ↑
Observationobservedcited backgroundmeasured

Claim · model-written summary

Ave1 was identified as the Verticillium race 1 elicitor of Ve1-mediated resistance.

Taxon
VerticilliumVerticilliume0
Gene
Ave1e0
Outcome
elicitor that activates Ve1-mediated resistancee0

Not reportedDirection

Verbatim

e0

“the Verticillium race 1 elicitor that activates Ve1-mediated resistance, Ave1, was identified”

✓ located verbatim in the source · abstract, characters 1017–1110 · show in text ↑
Intervention effectobservedcited backgroundpositivemeasured

Claim · model-written summary

Co-expression of Ave1 and Ve1 by agroinfiltration induced a hypersensitive response in tobacco.

Taxon
Nicotiana tabacum (tobacco)Nicotiana tabacume0
Treatment
Co-expression of the Ave1 and Ve1e0
Interactor
Agrobacterium tumefaciensAgrobacterium tumefaciense0other
Gene
Ave1 and Ve1e0
Outcome
HRe0

Not reportedComparatorDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Nicotiana tabacum
Nicotiana tabacum · TaxonJom / Joachim Müllerchen · CC BY 2.5 · Wikimedia Commons ↗
Agrobacterium tumefaciens
Agrobacterium tumefaciens · InteractorClemson University - USDA Cooperative Extension Slide Series, Bugwood.org · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Co-expression of the Ave1 and Ve1 through Agrobacterium tumefaciens-mediated transient expression (agroinfiltration) can successfully induce HR in Nicotiana tabacum (tobacco)”

✓ located verbatim in the source · abstract, characters 1112–1286 · show in text ↑