DICAPRYLOYLGLYCEROL AND AMMONIUM-IONS INDUCE METAMORPHOSIS OF ASCIDIAN LARVAE

被引：25

作者：

BERKING, S

HERRMANN, K

机构：

[1] Zoologisches Institut der Universität Köln, Köln 41, D-5000

来源：

ROUXS ARCHIVES OF DEVELOPMENTAL BIOLOGY | 1990年 / 198卷 / 07期

关键词：

Ammonium ions; Ascidia; Diacylglycerol; Metamorphosis;

D O I：

10.1007/BF00376162

中图分类号：

Q2 [细胞生物学];

学科分类号：

071009 ; 090102 ;

摘要：

Larvae of the tunicate Ciona start metamorphosis between some hours and a few days after hatching. Several substances were found to reduce this time span, such as vital dyes [Cloney (1961) Am Zool 1:67-87; Hirani (1961) Bull Mar Biol Stn Asamushi 11:121-125], heavy-metal ions including copper [see review by Lynch (1961) Am Zool 1:59-66] and the hormone thyroxine [Patricolo et al. (1981) Cell Tissue Res 214:289-301]. This study shows that low concentrations of ammonium ions as well as the second messenger dicapryloylglycerol induce metamorphosis immediately after hatching. On the other hand, when the follicle cells are removed newly hatched Ciona remain larvae for days. Follicle cells are possibly degraded by bacteria, which thereby produce ammonia. © 1990 Springer-Verlag.

引用

页码：430 / 432

页数：3

共 14 条

[1] AMMONIA, TETRAETHYLAMMONIUM, BARIUM AND AMILORIDE INDUCE METAMORPHOSIS IN THE MARINE HYDROID HYDRACTINIA [J].