scholarly journals Settlement and Metamorphosis of Capitella Larvae Induced by Juvenile Hormone-Active Compounds Is Mediated by Protein Kinase C and Ion Channels

1999 ◽  
Vol 196 (2) ◽  
pp. 187-198 ◽  
Author(s):  
W. J. Biggers ◽  
H. Laufer
2018 ◽  
Vol 293 (52) ◽  
pp. 20112-20122 ◽  
Author(s):  
Yu-Pu Jing ◽  
Hongli An ◽  
Shanjing Zhang ◽  
Ningbo Wang ◽  
Shutang Zhou

Author(s):  
Henrik Glenner ◽  
Birger Brodin

In order to induce metamorphosis in cyprids of the parasitic barnacle Loxothylacus panopaei (Gissler) (Cirripedia: Rhizocephala: Kentrogonida), we tested a number of compounds (ZR-512, 20-hydroxyecdysone, 3-isobutyl-l-methylxanthine and phorbol-12,13- dibutyrate) all known to cause metamorphosis in thoracican barnacles. Only one agent, phorbol-12,13-dibutyrate, had an effect and induced cypris larvae to complete metamorphosis without previous attachment. This suggests that diacylglycerol-activated protein kinase C plays a role in the metamorphosis of kentrogonid rhizocephalans.Rhizocephalans are highly specialized crustaceans adapted for parasitic life on decapods. The juvenile parasite passes through an internal growth stage, where a root-like trophic organ invades the tissue and haemocoelic fluid of the host (for detailed information on rhizocephalan life history, see Haeg, 1992). As in free-living barnacles, a cyprid larva is the settling stage, and in thoracicans a juvenile barnacle is formed underneath the carapace of the cyprid larva. However, the rhizocephalans develop a so-called kentrogon, which accomplishes the injection of the primordial parasite (Glenner & Høeg, 1995). The degree of specialization towards a specific host means that the cypris larvae of rhizocephalans are extremely selective in their choice of substrata. They will not settle unless a specific host or part of a host, e.g. the gills, is offered. For this reason, the study of settlement and metamorphosis of these species has met with great difficulties.


Cell Calcium ◽  
2004 ◽  
Vol 35 (5) ◽  
pp. 471-478 ◽  
Author(s):  
Sravan Mandadi ◽  
Mitsuko Numazaki ◽  
Makoto Tominaga ◽  
Manjunatha B Bhat ◽  
Patricia J Armati ◽  
...  

BMB Reports ◽  
2011 ◽  
Vol 44 (9) ◽  
pp. 559-565 ◽  
Author(s):  
Youn-Kyoung Son ◽  
Da-Hye Hong ◽  
Dae-Joong Kim ◽  
Amy L. Firth ◽  
Won-Sun Park

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