The polyps have the typical cnidarian structure of an external epidermis and an internal gastrodermis
, which lines the polyp cavity (Fautin and Mariscal, 1991).
El blanqueamiento es una reaccion del coral a la ausencia o la disminucion de los suplementos de nutrientes, la elevacion en la temperatura del agua, la sedimentacion y turbidez, lo cual lleva a la expulsion de las zooxantelas de las celulas de la gastrodermis
del coral, la degradacion de las zooxantelas de las celulas in situ o una combinacion de ambas (Hayes & Bush 1990, Rowan et al.
The identified structures in the histology sample of the control group confirm what was described by Gills and Haro (2001), being the distinguished structures pharynx cavity, pharynx lumen, gastrovascular cavity, epidermis, gastrodermis
, layer of parenchyma.
Intestine sinuous especially in posterior half, with hemosiderin usually abundant in gastrodermis
During daylight, corals receive a substantial portion of the photosynthate produced by the endosymbionts living in their gastrodermis
(32%-45% in Pocillopora damicornis) (Muscatine and Cernichiari, 1969), which can make up a significant portion of the coral's energy budget--in Porites compressa and Montipora capitata 65%-79% of daily metabolic energy is autotrophically derived (Grottoli et al.
At the oral end of the polyp there was scattered expression in the gastrodermis
and epidermis, but there was a robust signal in large cells found in the complete mesenteries suspending the pharynx, as well as in the pharynx itself (Fig.
Many of + binding, EF these had enhanced hand protein expression in the Sym32 Carbonic symbiotic anhydrase gastrodermis
Collagen compared to the non-symbiotic epidermis Identified specific gene duplications with a cnidarian-specific isoform upregulated in the symbiotic state Proposed model of aposymbiolic slate upregulating vesicular trafficking and symbiotic state upregulating metabolic exchange between the partners Coral Lipid bodies from Lipid Peng et al.
Caspase activity in confocal images was evident as green staining in epidermis and in the gastrodermis
housing resident symbionts, as shown in heat-stressed animals in VO and Sph but not in animals in SIP, FTY720, or in untreated animals incubated at ambient temperature (Fig.
of healthy tissues also contains many zooxanthellae, and there is no red fluorescence in the healthy tissue sections.
In symbiotic tentacles, staining in the epidermis was also slightly darker than in the preimmune controls, and in the gastrodermis
, where dinoflagellates are housed, it was significantly darker.
Unlike many typical cnidarian-algal symbioses in which the algal symbionts are located in the gastrodermis
, in C.
Although zooxanthellae are generally restricted to the gastrodermis
of adult corals, they are at least temporarily observed in the ectoderm of planulae of some corals and soft corals (Szmant-Froelich, 1985; Benayahu et al.