All types of bivalves have the potential to produce pearls. Pearls can be produced naturally and cultivated. In cultured pearls, pearl sac are obtained from saibo (slices of another bivalve mantle) that which come from pallial zone. This study wants know
La Eddy +2 more
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Embryonic Hormetic Priming Modulates Later‐Life Thermal Tolerance [PDF]
Understanding the mechanisms explaining thermal tolerance variation is crucial for predicting the impact of climate change on ectotherms, especially those living near their upper thermal limits.
K. Lugue +7 more
doaj +3 more sources
Phenome of pearl quality traits in the mollusc transplant model Pinctada margaritifera. [PDF]
AbstractThe bivalve Pinctada margaritifera exhibits three main transplant phenotypes derived from the donor (from which a mantle graft tissue, the saibo, is excised), the recipient (into which the saibo is implanted with a nucleus, leading to the formation of a pearl sac “chimera”) and the cultured pearls themselves.
Ky CL +4 more
europepmc +5 more sources
Correlative chemical and elemental nano-imaging of morphology and disorder at the nacre-prismatic region interface in Pinctada margaritifera [PDF]
Understanding biomineralization relies on imaging chemically heterogeneous organic–inorganic interfaces across a hierarchy of spatial scales. Further, organic minority phases are often responsible for emergent inorganic structures from the atomic ...
Brian T. O’Callahan +5 more
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Environmentally Driven Color Variation in the Pearl Oyster Pinctada margaritifera var. cumingii (Linnaeus, 1758) Is Associated With Differential Methylation of CpGs in Pigment- and Biomineralization-Related Genes [PDF]
Today, it is common knowledge that environmental factors can change the color of many animals. Studies have shown that the molecular mechanisms underlying such modifications could involve epigenetic factors.
Pierre-Louis Stenger +11 more
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Relationship of the orange tissue morphotype with shell and pearl colouration in the mollusc Pinctada margaritifera. [PDF]
AbstractMolluscs display a vast range of shell colours both between and within species. However, only a few species show colour variation in their soft tissues. In French Polynesia, the pearl oyster Pinctada margaritifera has three tissue morphotypes: the black wild-type and two rare mutations: white albino and orange mantle. Phenotypic transmission is
Ky CL +4 more
europepmc +5 more sources
Temperature and food influence shell growth and mantle gene expression of shell matrix proteins in the pearl oyster Pinctada margaritifera. [PDF]
In this study, we analyzed the combined effect of microalgal concentration and temperature on the shell growth of the bivalve Pinctada margaritifera and the molecular mechanisms underlying this biomineralization process.
Caroline Joubert +7 more
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Whole transcriptome sequencing and biomineralization gene architecture associated with cultured pearl quality traits in the pearl oyster, Pinctada margaritifera [PDF]
Background Cultured pearls are unique gems produced by living organisms, mainly molluscs of the Pinctada genus, through the biomineralization properties of pearl sac tissue. Improvement of P.
J. Le Luyer +6 more
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Species Inventory and Weight Measurements of Biofoulings Attached on the Pearl Oyster, Pinctada margaritifera, from Arakan Waters, North Sulawesi [PDF]
This study was conducted with the aims to identify biofoulings living on the shell of the pearl oyster, Pinctada margaritifera and to analyse the weights of the biofoulings for three months.
Putri T. J. Toreh +4 more
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Comparative transcriptomics identifies genes underlying growth performance of the Pacific black-lipped pearl oyster Pinctada margaritifera [PDF]
Background In bivalves, the rate at which organisms grow is a major functional trait underlying many aspects of their commercial production. Growth is a highly polygenic trait, which is typically regulated by many genes with small to moderate effects ...
Y. Dorant +3 more
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