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Recognizing Plant Defense Priming

2016; Elsevier BV; Volume: 21; Issue: 10 Linguagem: Inglês

10.1016/j.tplants.2016.07.009

1878-4372

Ainhoa Martínez‐Medina, Vı́ctor Flors, Martin Heil, Brigitte Mauch‐Mani, Corné M. J. Pieterse, Marı́a J. Pozo, Jurriaan Ton, Nicole M. van Dam, Uwe Conrath,

Insect and Arachnid Ecology and Behavior

Defense priming conditions diverse plant species for the superinduction of defense, often resulting in enhanced pest and disease resistance and abiotic stress tolerance. Here, we propose a guideline that might assist the plant research community in a consistent assessment of defense priming in plants. Defense priming conditions diverse plant species for the superinduction of defense, often resulting in enhanced pest and disease resistance and abiotic stress tolerance. Here, we propose a guideline that might assist the plant research community in a consistent assessment of defense priming in plants. fitness losses caused by allocation of metabolic resources toward defense that would otherwise have been allocated to growth and reproduction. induces a physiological state (the primed state of defense) in which a plant is conditioned for the superactivation of defenses against environmental challenges. occur when fitness-relevant interactions of an organism with its natural environment are impaired. the processes by which information about an environmental stimulus is stored and maintained for future use. a state of a plant or cell in the absence of stress or stress memory. the genetic contribution of a plant to the next generation. Seed production, number of flowers, pollen quality and number, and plant growth, among others, are generally accepted proxies for plant fitness. the trigger that initiates defense priming. The priming stimulus can be a stress itself, an indicative of an imminent stress, a chemical compound, or a beneficial organism. The priming stimulus does not, or only slightly and transiently, activate defense responses. It rather promotes the plant to a persistently primed state of enhanced defense readiness. the transmission of the primed state from a parental plant to its offspring. an external factor that activates a stress response.