Existence of an extra-retinal and extra-pineal photoreceptive organ that regulates photoperiodism in gonadal development of an Osmerid teleost, ayu (Plecoglossus altivelis).

作者: Tomohiro Masuda , Masayuki Iigo , Katsumi Aida

DOI: 10.1016/J.CBPB.2005.01.004

关键词:

摘要: Ayu (Plecoglossus altivelis) is an Osmerid teleost whose gonadal development exhibits clear photoperiodism: it stimulated and prevented under short long photoperiod, respectively. However, the photoreceptor organ involved in this process remains to be identified. In present study, we examined whether gonads of ophthalmectomized (Ex) pinealectomized (Px) ayu respond photoperiod test photoreceptors other than lateral eyes pineal complex are photoperiodic response development. Gonadosomatic index (GSI) plasma levels sex steroids (testosterone 11-ketotestosterone for males testosterone estradiol 17-beta females) were significantly increased Ex+Px kept both females as compared with initial control. On hand, there no significant increases GSI photoperiod. Histological observation revealed that oocytes undergoing final maturation proliferation germ cells observed but not These results indicate extra-retinal extra-pineal photoreceptive regulates species.

参考文章(44)
FRED J. KARSCH, ERIC L. BITTMAN, DOUGLAS L. FOSTER, ROBERT L. GOODMAN, SANDRA J. LEGAN, JANE E. ROBINSON, Neuroendocrine basis of seasonal reproduction. Recent Progress in Hormone Research. ,vol. 40, pp. 185- 232 ,(1984) , 10.1016/B978-0-12-571140-1.50010-4
Kenneth B. Davis, Cheryl A. Goudie, Bill A. Simco, Robert Mac Gregor, Nick C. Parker, Environmental Regulation and Influence of the Eyes and Pineal Gland on the Gonadal Cycle and Spawning in Channel Catfish (ictalurus punctatus) Physiological Zoology. ,vol. 59, pp. 717- 724 ,(1986) , 10.1086/PHYSZOOL.59.6.30158617
Tadashi Oishi, Kiyono Ohashi, Effects of Wavelengths of Light on the Photoperiodic Gonadal Response of Blinded-Pinealectomized Japanese Quail Zoological Science. ,vol. 10, pp. 757- 762 ,(1993)
Yoshitaka Fukada, Tadashi Oishi, Koichi Kokame, Yumi Yashiro, Tomoko Yoshikawa, Immunoreactivities to Rhodopsin and Rod/Cone Transducin Antisera in the Retina, Pineal Complex and Deep Brain of the Bullfrog, Rana catesbeiana Zoological Science. ,vol. 11, pp. 675- 680 ,(1994)
Hiroshi Urasaki, Effect of Pinealectomy on Gonadal Development in the Japanese Killifish (Medaka),Oryzias latipes 日本動物学彙報. ,vol. 45, pp. 10- 15 ,(1972)
Hiroshi Urasaki, Role of the Pineal Gland in Gonadal Development in the Fish,Oryzias latipes 日本動物学彙報. ,vol. 45, pp. 152- 158 ,(1972)
I. Provencio, G. Jiang, W. J. De Grip, W. P. Hayes, M. D. Rollag, Melanopsin: An opsin in melanophores, brain, and eye. Proceedings of the National Academy of Sciences of the United States of America. ,vol. 95, pp. 340- 345 ,(1998) , 10.1073/PNAS.95.1.340
R. J. Reiter, The melatonin rhythm: both a clock and a calendar. Cellular and Molecular Life Sciences. ,vol. 49, pp. 654- 664 ,(1993) , 10.1007/BF01923947
J. M. García-Fernández, A. J. Jiménez, B. González, M. A. Pombal, R. G. Foster, AN IMMUNOCYTOCHEMICAL STUDY OF ENCEPHALIC PHOTORECEPTORS IN THREE SPECIES OF LAMPREY Cell and Tissue Research. ,vol. 288, pp. 267- 278 ,(1997) , 10.1007/S004410050812
I. Mayer, C. Bornestaf, B. Borg, Melatonin in non-mammalian vertebrates: Physiological role in reproduction? Comparative Biochemistry and Physiology Part A: Physiology. ,vol. 118, pp. 515- 531 ,(1997) , 10.1016/S0300-9629(96)00468-9