Coral species

The objectives of the thesis: Determine the chemical composition of three soft coral species S. nanolobata, S. conferta, S. leptoclados collected in the central sea of Vietnam; đetecting active substances with cytotoxic activity in soft corals studied, orienting their application for biomedical and pharmacological studies.

26p closefriend09 16-11-2021 15 4   Download

It has been known for 30 years that the gorgonian coral Plexaura homomallacontains either 15S-or 15R-configur-ation prostaglandins (PGs), depending on its location in the Caribbean. Recently we showed that the 15R-PGs in the R-variety of P. homomallaare formed by a unique cyclo-oxygenase (COX) with 15Roxygenation specificity [Valm-sen, K., Ja¨rving, I., Boeglin, W.E., Varvas, K., Koljak, R., Pehk, T., Brash, A.R. & Samel, N. (2001)Proc. Natl. Acad. Sci. USA98, 7700].

6p dell39 03-04-2013 43 3   Download

For a variety of coral species, we have studied the molecular origin of their coloration to assess the contributions of host and symbiont pigments. For the corals Catalaphyllia jardineiand an orange-emitting color morph of Lobophyllia hemprichii, the pigments belong to a particular class of green fluorescent protein-like proteins that change their color from green to red upon irradiation with400 nm light.

8p galaxyss3 21-03-2013 39 2   Download

The percentage of hard substratum cover will be using the Points Intercept method (Hodgson and Waddell,1996) on the 6 replicate of the transect 150 m total long The data was collected including by hard coral, soft coral (to the specific of genus and living growth of form. For example ACB: Acropora branching coral), dead coral, dead coral with algae, sea weed, sponge, gravel, sand, rock, silt/clay and other organism living in the coral reef. (English et al 1997).

13p sanhnhamtheki 28-08-2012 73 3   Download