๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Heat shock as inducer of metamorphosis in marine invertebrates

โœ Scribed by Kroiher, Michael ;Walther, Michael ;Berking, Stefan

Publisher
Springer-Verlag
Year
1992
Tongue
English
Weight
479 KB
Volume
201
Category
Article
ISSN
1432-041X

No coin nor oath required. For personal study only.

โœฆ Synopsis

In most sessile marine invertebrates, metamorphosis is dependent on environmental cues. Here we report that heat stress is capable of inducing metamorphosis in the hydroid Hydractinia echinata. The onset of heat-induced metamorphosis is correlated with the appearance of heat-shock proteins. Larvae treated with the metamorphosis-inducing agents Cs + or NH + also synthesize heat-shock proteins. In heat-shocked larvae, the internal NH~-concentration increases. This fits the hypothesis that methylation plays a central role in control of metamorphosis. In the tunicate Ciona intestinalis, a heat shock is able to induce metamorphosis too.

๐Ÿ“œ SIMILAR VOLUMES

Tributyltin is a potent inducer of the h
Tributyltin is a potent inducer of the heat shock response in human diploid fibroblasts
โœ Hua Zhang; Alice Y.-C. Liu ๐Ÿ“‚ Article ๐Ÿ“… 1992 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 723 KB

Submicromolar concentrations of tributyltin (TBT), a commercially used organotin compound, were found to induce the expression of several stress proteins, most notably HSP89 and HSP70, in IMK-90 human diploid fibroblasts in a time-and dose-dependent manner. This induction can be demowtrated by quant

3,4-Dihydroxystyrene dimers, inducers of
3,4-Dihydroxystyrene dimers, inducers of larval metamorphosis in ascidians, from a marine sponge Jaspis sp.
โœ Sachiko Tsukamoto; Haruko Kato; Hiroshi Hirota; Nobuhiro Fusetani ๐Ÿ“‚ Article ๐Ÿ“… 1994 ๐Ÿ› Elsevier Science ๐ŸŒ French โš– 684 KB

Four new 3,4\_dihydroxystyrene dimers (3.4.5, and 9) have been isolated from a marine sponge Jaspis sp. along with the known narains (1 and 2). of which 3-5 induced metamorphosis of ascidmn Halocynthia rofetzi larvae. Structures of these metabolites were elucidated on the basis of spectral data. Bio