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Titolo:
Signals regulating multiple responses to wounding and herbivores
Autore:
de Bruxelles, GL; Roberts, MR;
Indirizzi:
Univ Lancaster, IENS, Dept Biol Sci, Lancaster LA1 4YQ, England Univ Lancaster Lancaster England LA1 4YQ Sci, Lancaster LA1 4YQ, England
Titolo Testata:
CRITICAL REVIEWS IN PLANT SCIENCES
fascicolo: 5, volume: 20, anno: 2001,
pagine: 487 - 521
SICI:
0735-2689(2001)20:5<487:SRMRTW>2.0.ZU;2-0
Fonte:
ISI
Lingua:
ENG
Soggetto:
SYSTEMIC ACQUIRED-RESISTANCE; INDUCED PROTEINASE-INHIBITOR; PLANT-DISEASE RESISTANCE; ALLENE OXIDE SYNTHASE; TOBACCO MOSAIC-VIRUS; LYCOPERSICON-PERUVIANUM CELLS; PATHOGENESIS-RELATED PROTEINS; CALMODULIN GENE-EXPRESSION; JASMONIC ACID BIOSYNTHESIS; TRANSGENIC TOMATO PLANTS;
Keywords:
signaling; wounding; herbivory; pathogen responses; tritrophic interactions;
Tipo documento:
Review
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Life Sciences
Citazioni:
245
Recensione:
Indirizzi per estratti:
Indirizzo: Roberts, MR Univ Lancaster, IENS, Dept Biol Sci, Lancaster LA1 4YQ, England Univ Lancaster Lancaster England LA1 4YQ er LA1 4YQ, England
Citazione:
G.L. de Bruxelles e M.R. Roberts, "Signals regulating multiple responses to wounding and herbivores", CR R PLANT, 20(5), 2001, pp. 487-521

Abstract

Damage inflicted by herbivore feeding necessitates multiple defense strategies in plants. The wound site must be sealed and defense responses mountedagainst the herbivore itself and against invading opportunistic pathogens. These defenses are controlled both in time and space by highly complex regulatory networks that themselves are modulated by interactions with other signaling pathways. In this review, we describe the signaling events that occur in individual wounded leaves, in systemic unwounded regions of the plant, and between the plant,and other organisms, and attempt to place these events in the context of a coordinated system. Key signals that are discussedinclude ion fluxes, active oxygen species, protein phosphorylation cascades, the plant hormones jasmonic acid, ethylene, abscisic acid and salicylic acid, peptide signals, glycans, volatile chemicals, and physical signals such as hydraulic and electrical signals. Themes that emerge after consideration of the published data are that glycans and peptide elicitors are likelyprimary triggers of wound-induced defense responses and that they functionthrough the action of jasmonic acid, a central mediator of defense gene expression, whose effect is modulated by ethylene, In the field, wound signaling pathways are significantly impacted on by other stress response pathways, including pathogen responses that often operate through potentially antagonistic signals such as salicylic acid. However, gross generalisations arenot possible because some wound and pathogen responses operate through common jasmonate- and ethylene-dependent pathways. Understanding the ways in which local and systemic wound signaling pathways are coordinated individually and in the context of the plants wider environment is a key challenge inthe application of this science to crop-protection strategies.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 05/12/20 alle ore 01:56:15