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Jasmonate‐ and salicylate‐mediated plant defense responses to insect herbivores, pathogens and parasitic plants
Author(s) -
Smith Jordan L,
De Moraes Consuelo M,
Mescher Mark C
Publication year - 2009
Publication title -
pest management science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.296
H-Index - 125
eISSN - 1526-4998
pISSN - 1526-498X
DOI - 10.1002/ps.1714
Subject(s) - jasmonic acid , plant defense against herbivory , biology , jasmonate , defence mechanisms , salicylic acid , herbivore , methyl jasmonate , parasitism , biotic stress , plant immunity , microbiology and biotechnology , ecology , host (biology) , arabidopsis , abiotic stress , genetics , gene , mutant
While extensive research has examined plant defense responses to attack by herbivores and pathogens, plant responses to parasitism by other plants are not well characterized. The expression of induced plant defenses is mediated by complex signaling networks in which the plant hormones jasmonic acid (JA) and salicylic acid (SA) play key roles. In general, JA‐mediated signaling pathways are implicated in the regulation of antiherbivore defenses, while the SA pathway is associated with defense responses against pathogens. However, there are many exceptions to this basic framework, and recent work suggests that interactions between the JA and SA pathways may play important roles in fine‐tuning defense responses. The few studies that have addressed plant responses to parasitism by other plants suggest that both salicylates and jasmonates can mediate effective defenses. Here, a review is given of recent work on these defense signaling molecules with relevance for understanding their role in plant responses to parasitism. Copyright © 2009 Society of Chemical Industry