Annual changes in the steroid levels in the testis and the pyloric caeca of Sclerasterias mollis (Hutton) (Echinodermata: Asteroidea) during the reproductive cycle

References

• Barker , M. F. and Xu , R. A. 1991a . Seasonal changes in the biochemical composition of gonads, pyloric caeca and body wall during the annual reproductive cycle of the New Zealand starfish, Sclerasterias mollis (Hutton) (Echinodermata: Asteroidea) . Mar. Biol. , (in press)
   Google Scholar
• Barker , M. F. and Xu , R. A. 1991b . Population differences in the gonad and pyloric caeca cycles in two populations of the New Zealand starfish, Sclerasterias mollis (Hutton) (Echinodermata: Asteroidea) . Mar. Biol. , (in press)
   Google Scholar
• Boolootian , R. A. 1966 . “ Reproductive physiology. ” . In Physiology of Echinodermata Edited by: Boolootian , R. A. 561 – 613 . New York : Interscience Publ. .
   Google Scholar
• Botticelli , C. R. , Hisaw , F. L. Jr. and Wotiz , H. H. 1960 . Estradiol- 17β and Progesterone in ovaries of starfish (Pisaster ochraceous). . Proc. Soc. Exp. Biol. Med. , 103 : 875 – 877 .
   PubMed Web of Science ®Google Scholar
• Colombo , L. and Belvedere , P. 1976 . Gonadal steroidgenesis in echinoderms. . Gen. Comp. Endocri. , 29 : 255 – 256 .
   Web of Science ®Google Scholar
• De Waal , M. , Poortman , J. and Voogt , P. A. 1982 . Steroid receptors in invertebrates. A specific 17β-oestradiol binding protein in a seastar. . Mar. Biol. Lett. , 3 : 317 – 323 .
   Google Scholar
• Dieleman , S. J. and Schoenmakers , H. J.N. 1979 . Radio-immunoassys to determine the presence of progesterone and estrone in the starfish . Asterias rubens. Gen. Comp. Endocri. , 39 : 534 – 542 .
   PubMed Web of Science ®Google Scholar
• Hathaway , R. R. 1965 . Conversion of estradiol- 17β by sperm preparation of sea urchin and oysters. . Gen. Comp. Endocri. , 5 : 504 – 508 .
   PubMed Web of Science ®Google Scholar
• Ikegami , S. , Shirai , H. and Kanatani , H. 1971 . On the occurrence of progesterone in ovary of the starfish . Asterias amurensis. Dobutsugaku Zasshi , 80 : 26 – 28 .
   Google Scholar
• Lowry , O. H. , Rosebrough , N. J. , Farr , A. C. and Randall , R. J. 1951 . Protein measurement with Folin-phenol reagent. . J. Biol. Chem. , 193 : 265 – 275 .
   PubMed Web of Science ®Google Scholar
• Schoenniakers , H. J.N. 1981 . The possible role of steroids in vitellogenesis in the starfish Edited by: Clark , W. H. Jr. and Adams , T. S. 127 – 150 . Holland, New York : Advances in Invertebrate. Reproduction, Elsevier . Asterias rubens In: (eds)
   Google Scholar
• Voogt , P. A. and Dieleman , S. J. 1984 . Progesterone and oestrone levels in the gonads and pyloric caeca of the male sea star Asterias rubens: A comparison with the corresponding levels in the female sea star. . Comp. Biochem. Physiol. , 79A : 635 – 639 .
   Web of Science ®Google Scholar
• Voogt , P. A. , Oudejans , R. C. and Broertjes , J. J.S. 1984 . “ Steroids and reproduction in starfish. ” . In Advances in Invertebrate Reproduction Edited by: Engels , W. 151 – 161 .
   Google Scholar
• Walker , C. W. 1980 . Spermatogenic columns, somatic cells, and the microenvironment of germinal cells in the testes of asteroids. . J. Morph. , 166 : 81 – 107 .
   PubMed Web of Science ®Google Scholar
• Walker , C. W. 1982 . “ Nutrition of gametes. ” . In Echinoderm Nutrition Edited by: Jangoux , M. and Lawrence , J. M. 449 – 468 . Rotterdam : Balkema Books .
   Google Scholar
• Watts , S. A. and Lawrence , J. M. 1987 . The effects of 17β-estradiol and estrone on intermediary metabolism of the pyloric caeca in Luida clathaia (Say) maitained under different nutritional regimes. . Devel. Growth Diff. , 29 : 153 – 160 .
   Web of Science ®Google Scholar
• Xu , R. A. 1987 . Steroid levels in ovaries and pyloric caeca of starfish, Sclerasterias mollis . New Zealand Marine Society Newsletter , 36 : 30
   Google Scholar
• Xu , R. A. 1989a . Studies on reproductive biology of forcipulate starfish Sclerasterias mollis (Hutton) (Echinodemata: Asteroidea). PhD thesis, University of Otago
   Google Scholar
• Xu , R. A. 1989b . Origin and interaction of estrogens and progesterone and their possible physiological functions in the ovaries of Sclerasterias mollis during the annual reproductive cycle. Proceedings of the 32nd Annual Meeting of the Endocrine Society of Australia & the New Zealand Society of Endocrinology, Monash University . Australia , 32 : 164
   Google Scholar
• Xu , R. A. and Barker , M. F. 1990a . Annual changes in the steroid levels in the ovaries and the pyloric caeca of Sclerasterias mollis during the reproductive cycle. . Biochem. Physiol. , 95A : 127 – 133 .
   Google Scholar
• Xu , R. A. and Barker , M. F. 1990b . Photoperiodic regulation of oogenesis in the starfish Sclerasterias mollis (Hutton 1872) (Echinodermata: Asteroidea). . J. Exp. Mar. Biol. Ecol. , 141 : 159 – 168 .
   Web of Science ®Google Scholar
• Xu , R. A. and Barker , M. F. 1990c . Effect of diets on steroid levels and reproduction in the starfish, Sclerasterias mollis . Biochem. Physiol. , 96A : 33 – 39 .
   Google Scholar
• Xu , R. A. and Barker , M. F. 1990d . Laboratory experiments on the effects of diet on the gonad and pyloric caecum indices and biochemical composition of tissues of the New Zealand starfish, Sclerasterias mollis (Hutton) (Echinodermata: Asteroidea). . J. Exp. Mar. Biol. Ecol. , 139 : 23 – 45 .
   Google Scholar