High impact information on Ostrea

• The intercysteine "loop" sequence 38-57 in the beta subunit has been shown to be a determinant for expression of biological activity in human lutropin (hLH) and choriogonadotropin (hCG) [Keutmann, H. T., Charlesworth, M. C., Mason, K. A., Ostrea, T., Johnson, L., & Ryan, R. J. (1987) Proc. Natl. Acad. Sci. U.S.A. 84, 2038] [1].
• To gain more insight into the molecular features of the Ostrea edulis HSP70, we have cloned and sequenced the gene product putatively encoding for the heat-inducible isoform HSP69 and examined the pattern of expression after heat exposure [2].
• We have analysed a centromeric satellite DNA family that is conserved in several commercial and non-commercial oyster species (Ostrea edulis, O. stentina, Crassostrea angulata, C. gigas, C. gasar, C. ariakensis, C. virginica and C. sikamea) [3].
• Amylase and aspartate aminotransferase in the haemolymph of the European flat oyster Ostrea edulis [4].
• European flat oysters, Ostrea edulis, 7-9 cm in shell length were obtained from shellfish farms in Marenne Oléron bay (Charente Maritime, France) on the French Atlantic coast [5].

Associations of Ostrea with chemical compounds

• At TBT levels found in local harbours, several sublethal biological responses are possible and were observed, including a significant reduction in MFO enzyme system activities of fish; digestive cell atrophy in the oyster Ostrea edulis; and induction of imposex in the snail Hexaplex trunculus [6].
• Fatty acid components of larval Ostrea edulis (L.): importance of triacylglycerols as a fatty acid reserve [7].
• The structure and distribution of ceramide aminoethylphosphonates in the oyster (Ostrea gigas) [8].
• The effects of naphthalene on glucose metabolism in the European flat oyster Ostrea edulis [9].
• A new adenosyl-alkaloid, ostrerine A, has been isolated along with an amino acid, tryptophan and a ribonucleoside, 2'-deoxythymidine from the Quanzhou marine mollusk, Ostrea rivularis, and the structures were elucidated by 1D and 2D NMR experiments, including (1)H-(1)H COSY, TOCSY, NOESY, HMQC, and HMBC methods [10].

Gene context of Ostrea

• We sequenced two genes encoding Hsp70 and Hsc70 in the European flat oyster Ostrea edulis [11].
• Ostrea edulis spawns spermatozeugmata, each composed of radially arrayed sperm cells attached by an extracellular matrix (ECM) to a core of acellular vesicles [12].
• Extraction of sperm proteins from the bivalve mollusc Ostrea edulis shows them to contain a normal complement of core histones, together with three sperm-specific proteins, OE1 and OE2, plus the shorter OE3, which shows substantial microheterogeneity [13].
• Metazoan parasite communities of Crassostrea gigas and Ostrea edulis from Great Britain, Crassostrea virginica from Mexico, and Saccostrea commercialis from Australia are described and summarized in terms of species composition, species richness, total number of individuals and dominance [14].

Analytical, diagnostic and therapeutic context of Ostrea

• Total and methyl-mercury content in bivalves, Mytilus galloprovincialis Lamarck and Ostrea edulis Linnaeus: relationship of biochemical composition and body size [15].

References