Structural and functional differences in the antennal olfactory system of worker honey bees of Apis mellifera and Apis cerana

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Title
Structural and functional differences in the antennal olfactory system of worker honey bees of Apis mellifera and Apis cerana
Author(s)
J W Jung; K W Park; Hyun Woo Oh; H W Kwon
Bibliographic Citation
Journal of Asia-Pacific Entomology, vol. 17, no. 3, pp. 639-646
Publication Year
2014
Abstract
Olfactory cues are important sensory modalities on individual discrimination, perception, and efficient orientation to food sources in most insects. In honey bees, which are well known as eusocial insects, olfactory cues are mainly used to maintain a colony. Although much research has been reported on olfactory systems in honey bee olfaction, little is known about the differences between two major honey bee species, the European honey bee Apis mellifera and the Asian honey bee Apis cerana. In order to understand the differences of olfactory characteristics in the two species, we compared the distribution of sensory hairs on the antennae and antennal olfactory responses, using electron microscopy, electrophysiological recording and molecular expression level of odorant receptors. Our present study demonstrated that the antennae of A. cerana have more olfactory sensilla than A. mellifera, responding more strongly to various floral volatile compounds. At the molecular level, olfactory co-receptor (Orco), which makes heterodimers with other conventional olfactory receptors, is more abundantly expressed in the antenna of A. cerana than of A. mellifera. These findings extend our understanding of the olfactory systems and behavioral responses to various ecological and biological signals in two closely related honey bee species.
Keyword
Apis ceranaApis melliferaHoney beeOlfactory receptorOlfactory responseOlfactory sensilla
ISSN
I000-0143
Publisher
South Korea
DOI
http://dx.doi.org/10.1016/j.aspen.2014.01.012
Type
Article
Appears in Collections:
Division of Bio Technology Innovation > Core Facility Management Center > 1. Journal Articles
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