Genomics in Induced Resistance

Kazan, Kemal; Schenk, Peer M.

doi:10.1002/9780470995983.ch3

Cited by 6 publications

(3 citation statements)

References 173 publications

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“…In a breakthrough discovery, external spraying of azelaic acid, a component of the plant's own induced immunity involved in priming defenses, was shown to induce resistance against pathogen Pseudomonas syringae ( Jung et al 2009 ). The advantages of this as a means of crop protection cannot be overstated – priming using plant-based products is environmentally safe, and priming triggers pathways controlled by multiple genes ( Kazan and Schenk 2007 ) making it potentially a more durable strategy than resistance governed by single major R genes. In this study, the first inoculations provided partial protection against subsequent infection in the laboratory, but in the field, these ‘primed’ plants became more heavily infected by the end of the 4-week trial.…”

Section: Discussionmentioning

confidence: 99%

“…2009). Multiple genes are involved in the signal transduction pathway of induced resistance (Kazan and Schenk 2007), and hence, priming may prove more durable than use of R genes with major effects on cultivar resistance, which pathogen populations may quickly overcome (Lindhout 2002; Palloix et al. 2009).…”

Section: Introductionmentioning

confidence: 99%

“…Biotic agents, such as less virulent pathogens, necrotizing pathogens, or even compounds of the plants’ own signaling pathway, may be used to boost the resistance of crops to subsequent pathogen attack in an environmentally friendly manner ( Walters and Daniell 2007 ; Jung et al 2009 ). Multiple genes are involved in the signal transduction pathway of induced resistance ( Kazan and Schenk 2007 ), and hence, priming may prove more durable than use of R genes with major effects on cultivar resistance, which pathogen populations may quickly overcome ( Lindhout 2002 ; Palloix et al 2009 ).…”

Section: Introductionmentioning

confidence: 99%

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Context‐dependent effects of induced resistance under co‐infection in a plant–pathogen interaction

Laine

2011

Evolutionary Applications

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The ability of a parasite strain to establish and grow on its host may be drastically altered by simultaneous infection by other parasite strains, and dynamics under multiple infection have been suggested to be a major force driving pathogen evolution. Here, I studied whether hosts’ induced defenses mediate dynamics of multiple infection of the fungal pathogen, Podosphaera plantaginis, infecting Plantago lanceolata. A laboratory study of sequential infections, where interaction between pathogen strains was prevented, showed that ability to establish remained unaffected, but prior infection elevates the host's resistance to the degree that subsequent infection development is significantly reduced. However, when inoculated plants and their healthy controls were planted back into their natural populations, hosts with prior infection became more heavily infected by the subsequent infections than the initially healthy plants. Hence, a controlled short-term laboratory study is a poor predictor of the host's ability to mediate multiple infection during the course of natural epidemics. These results have applied implications for priming where the plants’ defenses are elicited to provide protection against further attack, highlighting the importance of testing priming under natural conditions for relevant time scales.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Context‐dependent effects of induced resistance under co‐infection in a plant–pathogen interaction

Laine

2011

Evolutionary Applications

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Rhizosphere Metatranscriptomics: Challenges and Opportunities

Carvalhais

Dennis

Tyson

et al. 2013

Molecular Microbial Ecology of the Rhizosphere

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Natural history of Arabidopsis thaliana and oomycete symbioses

Holub

The Downy Mildews - Genetics, Molecular Biology and Control

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Molecular ecology of plant-microbe interactions has immediate significance for filling a gap in knowledge between the laboratory discipline of molecular biology and the largely theoretical discipline of evolutionary ecology. Somewhere in between lies conservation biology, aimed at protection of habitats and the diversity of species housed within them. A seemingly insignificant wildflower called Arabidopsis thaliana has an important contribution to make in this endeavour. It has already transformed botanical research with deepening understanding of molecular processes within the species and across the Plant Kingdom; and has begun to revolutionize plant breeding by providing an invaluable catalogue of gene sequences that can be used to design the most precise molecular markers attainable for markerassisted selection of valued traits. This review describes how A. thaliana and two of its natural biotrophic parasites could be seminal as a model for exploring the biogeography and molecular ecology of plant-microbe interactions, and specifically, for testing hypotheses proposed from the geographic mosaic theory of co-evolution.

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Genomics in Induced Resistance

Cited by 6 publications

References 173 publications

Context‐dependent effects of induced resistance under co‐infection in a plant–pathogen interaction

Context‐dependent effects of induced resistance under co‐infection in a plant–pathogen interaction

Rhizosphere Metatranscriptomics: Challenges and Opportunities

Natural history of Arabidopsis thaliana and oomycete symbioses

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