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- Title
Pea aphids ( Acyrthosiphon pisum Harris) reduce secretion of extrafloral nectar in broad bean ( Vicia faba).
- Authors
YOSHIDA, T. A. T. S. U. Y. A.; KAKUTA, H. A. R. U. K. A.; CHOH, Y. A. S. U. Y. U. K. I.
- Abstract
1. Herbivores sometimes suppress plant defences. This study tested whether the presence of pea aphids ( Acyrthosiphon pisum Harris) on broad bean ( Vicia faba) led to decreased secretion of extrafloral nectar (EFN) which functions as an indirect plant defence against herbivores. 2. To determine effects of aphid infestation on EFN secretion, a comparison was done between EFN secretion in uninfested plants and that in plants infested by A. pisum and another aphid species ( Aphis craccivora Koch). 3. When broad bean plants were infested by A. pisum, they secreted significantly smaller amounts of EFN than did uninfested plants and A. craccivora-infested plants. There was no significant difference in EFN secretion between uninfested plants and A. craccivora-infested plants. The number of extrafloral nectaries did not differ among the three treatments. 4. These results suggest that A. pisum reduced EFN production in broad bean plants.
- Subjects
APHIDS; HERBIVORES; PLANT ecology; INSECT-plant relationships; FAVA bean
- Publication
Ecological Entomology, 2018, Vol 43, Issue 1, p134
- ISSN
0307-6946
- Publication type
Article
- DOI
10.1111/een.12476