Mechanical defenses of plant extrafloral nectaries against herbivory

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

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

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.

Original languageEnglish (US)
JournalCommunicative and Integrative Biology
Volume9
Issue number3
DOIs
StatePublished - May 3 2016

Fingerprint

Herbivory
nectaries
herbivores
Plant Nectar
Insects
nectar robbing
Vicia faba
Calcium Oxalate
Ants
insects
chemical concentration
calcium oxalate
Reward
lignification
Cell Wall
nectar
crystals
plant tissues
Formicidae
toxins

All Science Journal Classification (ASJC) codes

  • Agricultural and Biological Sciences(all)

Cite this

Gish, Moshe ; Mescher, Mark C. ; De Moraes, Consuelo M. / Mechanical defenses of plant extrafloral nectaries against herbivory. In: Communicative and Integrative Biology. 2016 ; Vol. 9, No. 3.
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Mechanical defenses of plant extrafloral nectaries against herbivory. / Gish, Moshe; Mescher, Mark C.; De Moraes, Consuelo M.

In: Communicative and Integrative Biology, Vol. 9, No. 3, 03.05.2016.

Research output: Contribution to journalArticle

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