Synthesis and possible function of 11-ketotestosterone during oogenesis in eel (Anguilla spp.)

M Matsubara; P.M Lokman; A Senaha; Y Kazeto; S Ijiri; A Kambegawa; T Hirai; G Young; T Todo; S Adachi; K Yamauchi

doi:10.1023/B:FISH.0000030585.22093.7a

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Synthesis and possible function of 11-ketotestosterone during oogenesis in eel (Anguilla spp.)

Journal article

Peer reviewed

Synthesis and possible function of 11-ketotestosterone during oogenesis in eel (Anguilla spp.)

M Matsubara, P.M Lokman, A Senaha, Y Kazeto, S Ijiri, A Kambegawa, T Hirai, G Young, T Todo, S Adachi, …

Fish physiology and biochemistry, Vol.28(1), pp.353-354

03/2003

DOI: https://doi.org/10.1023/B:FISH.0000030585.22093.7a

Handle:

https://hdl.handle.net/2376/115224

Abstract

androgen

Animal Biochemistry

Zoology

mRNA expression

Life Sciences

Animal Physiology

female eel

ovary

Hydrobiology

oil droplets

enzyme activity

oocyte growth

Animal Anatomy / Morphology / Histology

The control of 11-ketotestosterone (11-KT) biosynthesis and its physiological roles were examined in female Japanese eel (Anguilla japonica) and New Zealand longfinned eel (Anguilla dieffenbachii). 11-KT was detected in serum of female eels of both species. Among various tissues from Japanese eel, the ovary had the greatest capacity to synthesize 11-KT in vitro. In addition, the oocyte diameters of eels treated with 11-KT had increased significantly. Furthermore, these oocytes were found to have an increased number of oil droplets. These findings suggest that 11-KT in female eels may be mostly of ovarian origin and that this androgen appears to play an important role in controlling pre-vitellogenic oocyte growth.

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Title: Synthesis and possible function of 11-ketotestosterone during oogenesis in eel (Anguilla spp.)
Creators: M Matsubara - Div. Marine Biosci., Grad. School Fisheries Sci. Hokkaido Univ. Hakodate Japan
P.M Lokman - Dept. Marine Science Univ. of Otago Dunedin New Zealand
A Senaha - Div. Marine Biosci., Grad. School Fisheries Sci. Hokkaido Univ. Hakodate Japan
Y Kazeto - Div. Marine Biosci., Grad. School Fisheries Sci. Hokkaido Univ. Hakodate Japan
S Ijiri - Div. Marine Biosci., Grad. School Fisheries Sci. Hokkaido Univ. Hakodate Japan
A Kambegawa - Kambegawa labo Komae, Tokyo Japan
T Hirai - Dept. Biosci. / Biotech. Res. Center Teikyo Univ. of Sci. and Tech. Uenohara, Yamanashi Japan
G Young - Dept. Biol. Sci. & Center Repr. Biol. Univ. of Idaho Moscow ID USA
T Todo - Div. Marine Biosci., Grad. School Fisheries Sci. Hokkaido Univ. Hakodate Japan
S Adachi - Div. Marine Biosci., Grad. School Fisheries Sci. Hokkaido Univ. Hakodate Japan
K Yamauchi - Div. Marine Biosci., Grad. School Fisheries Sci. Hokkaido Univ. Hakodate Japan
Publication Details: Fish physiology and biochemistry, Vol.28(1), pp.353-354
Academic Unit: UNKNOWN
Publisher: Kluwer Academic Publishers; Dordrecht
Identifiers: 99900548120401842
Language: English
Resource Type: Journal article

Synthesis and possible function of 11-ketotestosterone during oogenesis in eel (Anguilla spp.)

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