Metridium

Soft coral, Alcyonia alcyonium, whole Plumose anemone, Metridium senile, whole Various species, whole Uncontaminated areas Noncontaminated areas Contaminated areas... 

Karlsson KA, Leffler H, Samuelsson BE. Characterization of cerebroside (monoglycosylceramide) from the sea anemone, Metridium senile. Identifieation of the major long-chain base as an unusual dienic base with a methyl branch at a double bond. Biochim. Biophys. Acta 1979 574 79-93. 

All of the invertebrate collagens which have been examined have yielded the typical collagen wide-angle X-ray diffraction pattern, and electron micrographs of the fibers show, with the exception of Physalia float and Metridium body wall, the characteristic 600-700 A axial period (Gross et al., 1958). 

Aminoethylphosphonate.—n.m.r. measurements indicate that 78% of the phosphorus present in a water-soluble glycoprotein from the sea anemone Metridium dianthus is in the phosphonate form and includes 2-aminoethyl-phosphonic acid (20). N.m.r. for the identification of naturally occurring phosphonates appears to be a technique superior to chromatography, which has been used hitherto. ... 

The structure of a ceramide aminoethylphosphonate from Metridium senile has been shown to be (21). Hydrolysis of (21) by phospholipase gave (20) which was identified by g.l.c. and mass spectrometry. The ceramide fraction after this hydrolysis was itself hydrolysed by alkali, and the fatty acids together with the long-chain bases were also identified by g.l.c.-m.s. The composition of the long-chain bases was found to differ between anemones captured in April and in August the former lacked sphingosine. 

Cytolytic toxin produced by the Sea Pink sea anemone (Metridium senile). Produce 33 nm diameter ring like structures in cell membranes. 

Metabolism in Animals. The conversion of [ C]-/ -carotene into its 2-hydroxy-and 3-hydroxy-metabolites by two species of moths has been demonstrated. The sea anemone Metridium senile can utilize dietary canthaxanthin but not jS-carotene, echinenone (/3,/3-caroten-4-one), or zeaxanthin to produce asta-xanthin in its ovaries. The chirality (3 5) of the 3-hydroxy-e-ring carotenoids a-doradexanthin (14) and lutein (15) of goldfish suggests that these carotenoids... 

The glycolipid has the chemical structure of (4E,8E)-N-D-2 -hydroxypalmitoyl-1-0- p-D-glucopyranosyl-9-methyl-4,8-sphingadienine. A similar structure has been reported by Karlsson et al. in the sea anemone Metridium senile (79), This molecule was capable of inducing fruiting body formation when tested on a dikaryotic strain of S.commune. In order to determine the part of the molecule responsible for the activity, the degraded products were tested. 

Medicago polymorpha 143 Melia azedarach 231 Melilotus officinalis 143 Menisperum dauricum 336 Mentha piperita 373,376 Metridium senile 347 Micrococcus luteus 343 Mollugo glinus 176 Momordica chranlia 189... 

A combination of n.m.r. spectroscopy and m.s. along with degradation studies showed that the sea anemone, Metridium senile, contains a jS-D-glucopyranosyl-ceramide with the novel base, D-eryf/iro-l,3-dihydroxy-2-amino-9-methylocta-deca-/ranJ-4- ran -8-diene. ° ... 

Fox DL, Wilkie DW, Haxo FT (1978) Carotenoid fractionation in the plumose anemone MetridiumAl. 

Actinia equina (Mollusca), Calliactis parasitica, Metridium senile (Coelenterata), Geodia gigas (Porifera), and Anemonia sulcata (Coelenterata) reference 7,13,287... 

Beagley, C.T., Okimoto, R., and Wolstenholme, D.R. (1998) The mitochondrial genome of the sea anemone Metridium senile (Cnidaria) introns, a paucity of tRNA genes, and a near-standard genetic code. Genetics, 148,1091-1108. 

Gosline, J. (1971) Connective Tissue Mechanics Of Metridium-Senile 1. Structural And Compositional Aspects, J. Exp. Bio., 55, 763-74. 

The sea anemone Metridium senile furnished eight known epidioxy sterols (3-5, 9, 10, 12, 13, 15) in addition to a new compound (399) 323a). Milkova et al. 324, 325) have investigated the sterol composition of Black Sea invertebrates. They examined the sea anemone Actinia equina as well as two species of jellyfish. 

Krebs, H.C., G. Habermehl, and E. Wachter Biologic Active Substances from the Sea Anemone Metridium senile. Third International Symposium on Marine Natural Products, Brussels, Belgium, 1980. 

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