Maturation and senescence of an insect chemosensory response

Seabrook, W. D.; Hirai, Kazuo; Shorey, H. H.; Gaston, Lyle K.

doi:10.1007/bf00987843

Cited by 42 publications

(22 citation statements)

References 12 publications

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“…Whereas it was shown in different insect species that the sensitivity of antennal responses to odors increases with age (16,17,18), the antennal system of male A. ipsilon is fully functional at emergence and does not change sensitivity with age (5). The age-dependent sensitivity changes of AL neurons in A. ipsilon coincide with that of behavioral pheromone responsiveness and with that of the JH biosynthetic activity.…”

Section: Discussionmentioning

confidence: 99%

Effect of juvenile hormone on the central nervous processing of sex pheromone in an insect

Anton

Gadenne

1999

Proc. Natl. Acad. Sci. U.S.A.

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Behavioral sex pheromone responsiveness in the male moth Agrotis ipsilon was previously shown to be controlled by juvenile hormone (JH). However, this morphogenetic hormone did not change the sensitivity of antennae to sex pheromones. To analyze the possible involvement of JH in the central integration of the female-produced sex pheromone, we investigated the pheromone response of olfactory antennal lobe (AL) interneurons in male A. ipsilon as a function of age and JH status by using intracellular recordings. When the antennae were stimulated with the sex pheromone blend, the sensitivity of olfactory AL neurons increased with age, as does the JH-dependent behavioral and physiological development of A. ipsilon males. Furthermore, males surgically deprived of JH showed a significant decrease in the sensitivity of the AL neurons. JH injection in operated or in young males restored or induced, respectively, a high sensitivity of the AL neurons. JH seems likely to be involved in the plasticity of the adult insect brain by modulating the central nervous processing of olfactory information, thus allowing mate recognition and reproduction at the optimal time.

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Section: Discussionmentioning

confidence: 99%

Effect of juvenile hormone on the central nervous processing of sex pheromone in an insect

Anton

Gadenne

1999

Proc. Natl. Acad. Sci. U.S.A.

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“…These cues are perceived by one or more of the senses and affect insect orientation and other behaviors such, that capture by the trap is facilitated. However, an insect’s age can affect foraging behavior and response to cues (e.g., Seabrook et al, 1979; Jang, 1995; Kendra et al, 2005). As a result, random samples that represent all the age classes in a population may be very difficult to obtain with traps or other collection techniques that manipulate the behavior of insects.…”

Section: Introductionmentioning

confidence: 99%

Life table assay of field‐caught Mediterranean fruit flies, Ceratitis capitata, reveals age bias

Kouloussis

Papadopoulos

Müller

et al. 2009

Entomologia Exp Applicata

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Though traps are used widely to sample phytophagous insects for research or management purposes, and recently in aging research, possible bias stemming from differential response of individuals of various ages to traps has never been examined. In this paper, we tested the response of Ceratitis capitata (Wiedemann) (Diptera: Tephritidae) males and females of four ages (spanning from 1 to 40 days) to McPhail-type traps baited with a synthetic food attractant in field cages and found that the probability of trapping was significantly influenced by age. The type of food on which flies were maintained before testing (sugar or protein) also had a strong effect and interacted with age. In another experiment, we collected wild C. capitata adults of unknown age using 1–3 methods and then reared them in the laboratory until death. The survival schedules of these flies were subsequently used in a life table assay to infer their age at the time of capture. Results showed that on a single sampling date, males captured in traps baited with a food attractant were younger compared with males aspirated from fruiting host trees, or males captured in traps baited with a sex attractant. Likewise, females captured in food-baited traps were younger compared with aspirated females. In addition to providing the first evidence of age-dependent sampling bias for a phytophagous insect species, this paper also provides a novel approach to estimate the differences in the age composition of samples collected with different techniques. These findings are of utmost importance for several categories of insects, medically important groups notwithstanding.

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“…Neurophysiological studies have reported age-related changes in sensitivity to chemical social signals or environmental cues (Seabrook et al 1979;Blaney et al 1986;Vetter and Visscher 1997), although these studies compared the response of very recently eclosed adults with those that are a few days older. Older workers might be expected to have antennae in poorer condition, simply through ongoing wear and tear.…”

Section: Discussionmentioning

confidence: 96%

“…Less is known about the effect of these long-term processes on olfactory sensory systems, despite their crucial role in foraging and mating success, social interactions, and avoidance of enemies, all of which depend upon the accurate detection of chemical signals and cues (Wyatt 2003). The antennae of insects are essential for acquiring chemical information, yet they are also subject to substantial wear and tear (Seabrook et al 1979). While neurophysiological studies of insects reveal variation in response to chemical signals with age (Seabrook et al 1979;Blaney et al 1986;Vetter and Visscher 1997), this typically reflects the very early days of adult life.…”

Section: Introductionmentioning

confidence: 99%

“…The antennae of insects are essential for acquiring chemical information, yet they are also subject to substantial wear and tear (Seabrook et al 1979). While neurophysiological studies of insects reveal variation in response to chemical signals with age (Seabrook et al 1979;Blaney et al 1986;Vetter and Visscher 1997), this typically reflects the very early days of adult life. Whether the condition of the receptor organ affects the individual's ability to detect a signal and respond appropriately is apparently unknown.…”

Section: Introductionmentioning

confidence: 99%

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Density of Antennal Sensilla Influences Efficacy of Communication in a Social Insect

Gill

Wilgenburg

Macmillan

et al. 2013

The American Naturalist

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Effective communication requires reliable signals and competent receptors. Theoretical and empirical accounts of animal signaling focus overwhelmingly on the capacity of the signaler to convey the message. Nevertheless, the intended receiver's ability to detect a signal depends on the condition of its receptor organs, as documented for humans. The impact of receptor organ condition on signal reception and its consequences for functional behavior are poorly understood. Social insects use antennae to detect chemical odors that distinguish between nestmates and enemies, reacting aggressively to the latter. We investigated the impact of antennal condition, determined by the density of sensilla, on the behavior of the weaver ant Oecophylla smaragdina. Worker aggression depended upon the condition of their antennae: workers with fewer sensilla on their antennae reacted less aggressively to nonnestmate enemies. These novel data highlight the largely unappreciated significance of receptor organ condition for animal communication and may have implications for coevolutionary processes in animal communication.

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Maturation and senescence of an insect chemosensory response

Cited by 42 publications

References 12 publications

Effect of juvenile hormone on the central nervous processing of sex pheromone in an insect

Effect of juvenile hormone on the central nervous processing of sex pheromone in an insect

Life table assay of field‐caught Mediterranean fruit flies, Ceratitis capitata, reveals age bias

Density of Antennal Sensilla Influences Efficacy of Communication in a Social Insect

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