Structure and function of the axillary organ of the gulf toadfish, Opsanus beta (Goode and Bean)

J. N. Maina, C. M. Wood, C. Hogstrand, T. E. Hopkins, Y. H. Luo, Patrick Gibbs, P. J. Walsh

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The structure of the axillary organ of a batrachoidid species, the gulf toadfish (Opsanus beta Goode and Bean 1879), has been examined and several simple experiments designed to elucidate its function performed. Electron microscopy (EM) studies revealed cells and structures suggesting secretory and long regulatory roles (e.g., abundant intracytoplasmic secretory particles, rough endoplasmic reticulum, sparse Golgi bodies, indented epithelial cells with microvilli, numerous endocytotic vesicles, etc.). Our physiological experiments allowed us to reach several conclusions: the organs do not excrete significant quantities of urea relative to other areas of the fish (head and gilts), the organs do not secrete a substance that is toxic to a teleost test fish (Gambusia affinis), the secretions do not induce short- term modifications in locomotory activity of other gulf toadfish (e.g., by pheromonal means) and the secretions do not inhibit the growth of several species of microorganisms in culture. The function of the organ and its secretions remains unknown, representing a fertile area for research on structure and function in comparative physiology.

Original languageEnglish
Pages (from-to)17-26
Number of pages10
JournalComparative Biochemistry and Physiology - A Molecular and Integrative Physiology
Volume119
Issue number1
DOIs
StatePublished - Jan 1 1998
Externally publishedYes

Fingerprint

Batrachoidiformes
Fish
Fishes
Comparative Physiology
Cyprinodontiformes
Rough Endoplasmic Reticulum
Poisons
Physiology
Microvilli
Microorganisms
Electron microscopy
Urea
Electron Microscopy
Epithelial Cells
Experiments
Head
Growth
Research

Keywords

  • Anti-microbial compounds
  • Axillary organ
  • Gulf toadfish
  • Opsanus beta
  • Pheromones
  • Toxins

ASJC Scopus subject areas

  • Biochemistry
  • Molecular Biology
  • Physiology

Cite this

Structure and function of the axillary organ of the gulf toadfish, Opsanus beta (Goode and Bean). / Maina, J. N.; Wood, C. M.; Hogstrand, C.; Hopkins, T. E.; Luo, Y. H.; Gibbs, Patrick; Walsh, P. J.

In: Comparative Biochemistry and Physiology - A Molecular and Integrative Physiology, Vol. 119, No. 1, 01.01.1998, p. 17-26.

Research output: Contribution to journalArticle

Maina, J. N. ; Wood, C. M. ; Hogstrand, C. ; Hopkins, T. E. ; Luo, Y. H. ; Gibbs, Patrick ; Walsh, P. J. / Structure and function of the axillary organ of the gulf toadfish, Opsanus beta (Goode and Bean). In: Comparative Biochemistry and Physiology - A Molecular and Integrative Physiology. 1998 ; Vol. 119, No. 1. pp. 17-26.
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