Phytohormone mediation of interactions between herbivores and plant pathogens

Autor: Joop J. A. van Loon, Marcel Dicke, Jenny Lazebnik, Enric Frago
Jazyk: angličtina
Rok vydání: 2014
Předmět:
arabidopsis resistance
Insecta
Insect
Biochemistry
Plant Growth Regulators
necrotrophic pathogens
Plant defense against herbivory
white-backed planthopper
Plant Immunity
Laboratory of Entomology
Trophic level
media_common
Ecology
food and beverages
General Medicine
Plants
PE&RC
Host-Pathogen Interactions
defense responses
Alimentation des animaux
Systemic acquired resistance
Plant tolerance to herbivory
media_common.quotation_subject
Pathologie végétale
multitrophic interactions
Biology
Agent pathogène
pseudomonas-syringae
aphid interactions
Animals
Herbivory
Ecology
Evolution
Behavior and Systematics
L02 - Alimentation animale
Herbivore
Substance de croissance végétale
fungi
systemic acquired-resistance
generalist insect herbivores
Laboratorium voor Entomologie
rice blast fungus
H50 - Troubles divers des plantes
Phloem
Zdroj: Journal of Chemical Ecology, 40(7), 730-741
Journal of Chemical Ecology
Journal of Chemical Ecology 40 (2014) 7
ISSN: 0098-0331
DOI: 10.1007/s10886-014-0480-7
Popis: Induced plant defenses against either pathogens or herbivore attackers are regulated by phytohormones. These phytohormones are increasingly recognized as important mediators of interactions between organisms associated with plants. In this review, we discuss the role of plant defense hormones in sequential tri-partite interactions among plants, pathogenic microbes, and herbivorous insects, based on the most recent literature. We discuss the importance of pathogen trophic strategy in the interaction with herbivores that exhibit different feeding modes. Plant resistance mechanisms also affect plant quality in future interactions with attackers. We discuss exemplary evidence for the hypotheses that (i) biotrophic pathogens can facilitate chewing herbivores, unless plants exhibit effector-triggered immunity, but (ii) facilitate or inhibit phloem feeders. (iii) Necrotrophic pathogens, on the other hand, can inhibit both phloem feeders and chewers. We also propose herbivore feeding mode as predictor of effects on pathogens of different trophic strategies, providing evidence for the hypotheses that (iv) phloem feeders inhibit pathogen attack by increasing SA induction, whereas (v) chewing herbivores tend not to affect necrotrophic pathogens, while they may either inhibit or facilitate biotrophic pathogens. Putting these hypotheses to the test will increase our understanding of phytohormonal regulation of plant defense to sequential attack by plant pathogens and insect herbivores. This will provide valuable insight into plant-mediated ecological interactions among members of the plant-associated community.
Databáze: OpenAIRE
Externí odkaz: