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Seduced by the dark side: integrating molecular and ecological perspectives on the influence of light on plant defence against pests and pathogens.

Research output: Contribution to journalJournal article

Published

Journal publication date06/2006
JournalNew Phytologist
Journal number4
Volume170
Number of pages23
Pages677-699
Original languageEnglish

Abstract

Plants frequently suffer attack from herbivores and microbial pathogens, and have evolved a complex array of defence mechanisms to resist defoliation and disease. These include both preformed defences, ranging from structural features to stores of toxic secondary metabolites, and inducible defences, which are activated only after an attack is detected. It is well known that plant defences against pests and pathogens are commonly affected by environmental conditions, but the mechanisms by which responses to the biotic and abiotic environments interact are only poorly understood. In this review, we consider the impact of light on plant defence, in terms of both plant life histories and rapid scale molecular responses to biotic attack. We bring together evidence that illustrates that light not only modulates defence responses via its influence on biochemistry and plant development but, in some cases, is essential for the development of resistance. We suggest that the interaction between the light environment and plant defence is multifaceted, and extends across different temporal and biological scales.

Bibliographic note

We acknowledge the New Phytologist Journal, the New Phytologist Trust and Blackwell Publishing for making this publication possible. The definitive version is available at www.blackwell-synergy.com (c) Blackwell 2006. The definitive version is available at www.blackwellsynergy.com

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