Mechanical defenses of plant extrafloral nectaries against herbivory

Moshe Gish, Mark C. Mescher, Consuelo M. De Moraes

פרסום מחקרי: פרסום בכתב עתמאמרביקורת עמיתים

תקציר

Extrafloral nectaries play an important role in plant defense against herbivores by providing nectar rewards that attract ants and other carnivorous insects. However, extrafloral nectaries can themselves be targets of herbivory, in addition to being exploited by nectar-robbing insects that do not provide defensive services. We recently found that the extrafloral nectaries of Vicia faba plants, as well as immediately adjacent tissues, exhibit high concentrations of chemical toxins, apparently as a defense against herbivory. Here we report that the nectary tissues of this plant also exhibit high levels of structural stiffness compared to surrounding tissues, likely due to cell wall lignification and the concentration of calcium oxalate crystals in nectary tissues, which may provide an additional deterrent to herbivore feeding on nectary tissues.

שפה מקוריתאנגלית אמריקאית
כתב עתCommunicative and Integrative Biology
כרך9
מספר גיליון3
מזהי עצם דיגיטלי (DOIs)
סטטוס פרסוםפורסם - 3 מאי 2016
פורסם באופן חיצוניכן

ASJC Scopus subject areas

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