Consummatory feeding movements in Aplysia fasciata are facilitated by conspecifics with access to mates, by reproductive tract homogenates and by bag cell peptides

S. Blumberg; A. J. Susswein

doi:10.1007/s003590050168

Consummatory feeding movements in Aplysia fasciata are facilitated by conspecifics with access to mates, by reproductive tract homogenates and by bag cell peptides

S. Blumberg, A. J. Susswein

Bar-Ilan University

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

In Aplysia fasciata, pheromones released by conspecifics with access to mates increase the quantity of food eaten. This effect is blocked when the chemosensory rhinophores are ablated, indicating that the rhinophores sense pheromones. The modulation of feeding by pheromones can be monitored by an increase in the amplitude of swallowing movements in the presence of conspecifics with access to mates. Atrial gland homogenates and four bag cell peptides (egg-laying hormone, and α, β, and γ bag cell peptides) amplify the swallow amplitude in a manner similar to that caused by conspecifics with access to mates, suggesting that peptides from the bag cell/atrial gland family that are released from the atrial gland into the surrounding water may be pheromones regulating feeding and reproductive behaviors.

Original language	English
Pages (from-to)	175-181
Number of pages	7
Journal	Journal of Comparative Physiology A: Neuroethology, Sensory, Neural, and Behavioral Physiology
Volume	182
Issue number	2
DOIs	https://doi.org/10.1007/s003590050168
State	Published - Feb 1998

Bibliographical note

Funding Information:
Acknowledgements We thank Dr. Israel Ziv for collecting and sending atrial glands from A. californica, Silvia Markovich for help in performing some of the experiments, and Itay Hurwitz for comments on an earlier draft of the manuscript. This work was supported by Grant No. I-206-202.08/92 from the German-Israel Foundation for Scientific Research and Development.

Funding

Acknowledgements We thank Dr. Israel Ziv for collecting and sending atrial glands from A. californica, Silvia Markovich for help in performing some of the experiments, and Itay Hurwitz for comments on an earlier draft of the manuscript. This work was supported by Grant No. I-206-202.08/92 from the German-Israel Foundation for Scientific Research and Development.

Funders	Funder number
German–Israel Foundation for Scientific Research and Development

Keywords

Aplysia
Atrial gland
Egg-laying hormone
Peptide
Pheromone

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10.1007/s003590050168

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abstract = "In Aplysia fasciata, pheromones released by conspecifics with access to mates increase the quantity of food eaten. This effect is blocked when the chemosensory rhinophores are ablated, indicating that the rhinophores sense pheromones. The modulation of feeding by pheromones can be monitored by an increase in the amplitude of swallowing movements in the presence of conspecifics with access to mates. Atrial gland homogenates and four bag cell peptides (egg-laying hormone, and α, β, and γ bag cell peptides) amplify the swallow amplitude in a manner similar to that caused by conspecifics with access to mates, suggesting that peptides from the bag cell/atrial gland family that are released from the atrial gland into the surrounding water may be pheromones regulating feeding and reproductive behaviors.",

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Consummatory feeding movements in Aplysia fasciata are facilitated by conspecifics with access to mates, by reproductive tract homogenates and by bag cell peptides. / Blumberg, S.; Susswein, A. J.
In: Journal of Comparative Physiology A: Neuroethology, Sensory, Neural, and Behavioral Physiology, Vol. 182, No. 2, 02.1998, p. 175-181.

Research output: Contribution to journal › Article › peer-review

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Consummatory feeding movements in Aplysia fasciata are facilitated by conspecifics with access to mates, by reproductive tract homogenates and by bag cell peptides

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