Fine structure of scolopidia in Johnston's organ of female Aedes aegypti compared with that of the male

Boo, Kyung Saeng; Richards, A. Glenn

doi:10.1016/0022-1910(75)90126-2

Cited by 70 publications

(45 citation statements)

References 15 publications

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“…JO is an antennal chordotonal organ, specialized for hearing in some insects, as best characterized in two Dipterans, mosquito and Drosophila melanogaster [12]. It consists of hundreds to thousands of scolopidial units, each composed of 2–3 neurons and several support cells [13]–[15]. JO transduces the mechanical vibration of the flagellum (the third antennal segment) into the electrophysiological activation of chordotonal neurons.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Range Compression in the Honey Bee Auditory System toward Waggle Dance Sounds

et al. 2007

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Honey bee foragers use a “waggle dance” to inform nestmates about direction and distance to locations of attractive food. The sound and air flows generated by dancer's wing and abdominal vibrations have been implicated as important cues, but the decoding mechanisms for these dance messages are poorly understood. To understand the neural mechanisms of honey bee dance communication, we analyzed the anatomy of antenna and Johnston's organ (JO) in the pedicel of the antenna, as well as the mechanical and neural response characteristics of antenna and JO to acoustic stimuli, respectively. The honey bee JO consists of about 300–320 scolopidia connected with about 48 cuticular “knobs” around the circumference of the pedicel. Each scolopidium contains bipolar sensory neurons with both type I and II cilia. The mechanical sensitivities of the antennal flagellum are specifically high in response to low but not high intensity stimuli of 265–350 Hz frequencies. The structural characteristics of antenna but not JO neurons seem to be responsible for the non-linear responses of the flagellum in contrast to mosquito and fruit fly. The honey bee flagellum is a sensitive movement detector responding to 20 nm tip displacement, which is comparable to female mosquito. Furthermore, the JO neurons have the ability to preserve both frequency and temporal information of acoustic stimuli including the “waggle dance” sound. Intriguingly, the response of JO neurons was found to be age-dependent, demonstrating that the dance communication is only possible between aged foragers. These results suggest that the matured honey bee antennae and JO neurons are best tuned to detect 250–300 Hz sound generated during “waggle dance” from the distance in a dark hive, and that sufficient responses of the JO neurons are obtained by reducing the mechanical sensitivity of the flagellum in a near-field of dancer. This nonlinear effect brings about dynamic range compression in the honey bee auditory system.

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Section: Introductionmentioning

confidence: 99%

Dynamic Range Compression in the Honey Bee Auditory System toward Waggle Dance Sounds

et al. 2007

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“…This complex chordotonal organ (Field & Matheson 1998) consists of thousands of radially arranged, multicellular mechanoreceptor units, each composed of two or three sensory neurons and two auxiliary cells (Risler & Schmidt 1967;Boo & Richards 1975a,b;Clements 1999). In total, about 7500 sensory neurons are contained within the organ in females (Boo & Richards 1975b), and about 15 000 are found in males (Boo & Richards 1975a). We have previously shown that in both sexes Johnston's organs are sensitive to nanometre-range displacements of the £agellum (GÎpfert & Robert 2000).…”

Section: Introductionmentioning

confidence: 99%

Active auditory mechanics in mosquitoes

Göpfert

Robert

2001

Proc. R. Soc. Lond. B

172

154

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In humans and other vertebrates, hearing is improved by active contractile properties of hair cells. Comparable active auditory mechanics is now demonstrated in insects. In mosquitoes, Johnston's organ transduces sound-induced vibrations of the antennal £agellum. A non-muscular`motor' activity enhances the sensitivity and tuning of the £agellar mechanical response in physiologically intact animals. This motor is capable of driving the £agellum autonomously, amplifying sound-induced vibrations at speci¢c frequencies and intensities. Motor-related electrical activity of Johnston's organ strongly suggests that mosquito hearing is improved by mechanoreceptor motility.

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“…3K, two bipolar sensory cells were existed in that area (arrowhead). Moreover, DAPI staining indicates the satellite cells were localized around the ciliary segments: One near to the center is an envelope cell and the other on the outer is a scolopale cell (Boo and Richards, 1975). As anti-HRP antibody stains insect neuronal cell membranes and scolopales, DAPI covered with anti-HRP antibody and cilia parts are stained well (Fig.…”

Section: Expression Patterns Of Aatrpv Channels Correlates With Drosomentioning

confidence: 95%

Identification and expression patterns of two TRPV channel genes in antennae and Johnston's organ of the dengue and Zika virus vector mosquito, Aedes aegypti

Jung

Kwon

2016

Journal of Asia-Pacific Entomology

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Fine structure of scolopidia in Johnston's organ of female Aedes aegypti compared with that of the male

Cited by 70 publications

References 15 publications

Dynamic Range Compression in the Honey Bee Auditory System toward Waggle Dance Sounds

Dynamic Range Compression in the Honey Bee Auditory System toward Waggle Dance Sounds

Active auditory mechanics in mosquitoes

Identification and expression patterns of two TRPV channel genes in antennae and Johnston's organ of the dengue and Zika virus vector mosquito, Aedes aegypti

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