Results 141 to 150 of about 5,160 (177)

Growth of wild pearl oysters Pinctada fucata, Pinctada margaritifera and Pinctada sugillata (Bivalvia: Pteriidae) in Taiwan

Fisheries Science, 2007
In order to understand growth features of pearl oysters in the genus Pinctada, i.e. Pinctada fucata, Pinctada margaritifera, and Pinctada sugillata in Taiwan, a total of 3062 wild individuals of these species from juvenile to adult were collected monthyly from March 2001 to April 2002 in Jukeng, Pingtung County, south-west Taiwan.
Ichiro Aoki
exaly   +2 more sources

Structure and composition of the nacre–prisms transition in the shell of Pinctada margaritifera (Mollusca, Bivalvia)

Analytical and Bioanalytical Chemistry, 2008
A microstructural, mineralogical, and chemical study of the nacre-prisms boundary in the shells of Pinctada margaritifera shows that this boundary is not an abrupt transition, but that there exists a distinct fibrous layer with clear topographic structures and evidence of growth lines.
Jean-Pierre Cuif   +2 more
exaly   +5 more sources

Biomineralisation markers during a phase of active growth in Pinctada margaritifera

Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology, 2003
To search for the biochemical parameters involved in calcium and carbonate transport during crystal formation and biomineralisation in nacreous molluscs, the carbonic anhydrase activity, the levels of calciotropic hormones in hemolymph and in tissues and the circulating concentration of calcium were measured in pearl oysters (Pinctada margaritifera ...
M, Rousseau   +5 more
openaire   +2 more sources

Misorientation characteristics of interphase boundaries in Pinctada margaritifera shell

Materials Letters, 2019
The research was co-financed by the European Union from resources of the European Social Fund (Project No.WND-POWR.03.02.00-00-I043/16), the statutory funds No. 11.11.130.375, Polish National Agency for Academic Exchange (grant no PPI/APM/2018/1/00049/U/001 ) and Spanish Ministerio de Ciencia e Innovación ( CGL2017-85118-P )
Martyna Strąg   +7 more
openaire   +2 more sources

Proteomics Analysis of the Nacre Soluble and Insoluble Proteins from the Oyster Pinctada margaritifera

Marine Biotechnology, 2007
Shell nacre is laid upon an organic cell-free matrix, part of which, paradoxically, is water soluble and displays biological activities. Proteins in the native shell also constitute an insoluble network and offer a model for studying supramolecular organization as a means of self-ordering.
Bédouet, Laurent   +10 more
openaire   +3 more sources

Two mesenchymal tumors in a pearl oyster, Pinctada margaritifera

Journal of Invertebrate Pathology, 1972
Abstract Two mesenchymal polyps arising from the visceral mass in the gut loop area of Pinctada margaritifera had normal low columnar ciliated and pigmented epithelium and associated secretory cells. The stroma of both tumors was richly vascularized with well differentiated tissue of scattered muscle fibers in a collagenous matrix.
openaire   +1 more source

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