Results 11 to 20 of about 1,823 (177)

Yes, it turns: experimental evidence of pearl rotation during its formation [PDF]

Royal Society Open Science, 2015
Cultured pearls are human creations formed by inserting a nucleus and a small piece of mantle tissue into a living shelled mollusc, usually a pearl oyster.
Yannick Gueguen, Yann Czorlich, Max Mastail, Bruno Le Tohic, Didier Defay, Pierre Lyonnard, Damien Marigliano, Jean-Pierre Gauthier, Hubert Bari, Cedrik Lo, Sébastien Chabrier, Gilles Le Moullac   +11 more
doaj   +1 more source

Increased histone H3 acetylation inhibit the inflammatory response and activate the serum immunity of Pearl oyster Pinctada fucata martensii

Frontiers in Marine Science, 2023
To produce cultured pearls, a mantle graft with a nucleus is transplanted into a host pearl oyster, this process is called “transplantation”. The immune response of pearl oyster after transplantation is a major factor that leads to nucleus rejection and ...
Jingmiao Yang, Shuai Yang, Yongshan Liao, Yuewen Deng, Yuewen Deng, Yuewen Deng, Yuewen Deng, Yuewen Deng, Yu Jiao, Yu Jiao, Yu Jiao   +10 more
doaj   +1 more source

Climate smart, underutilised, healthful future cereal: Protein content, hydration properties, starch digestibility and consumer liking of pearl millet-based Oyster mushroom crackers

Food Chemistry Advances, 2023
Pearl millet is an underutilised cereal. This study investigated the use of undervalued pearl millet grain in the manufacturing of value-added low sugar crackers that are protein-enhanced by the incorporation of Oyster mushroom.
E.N. Uukule, W. Embashu, P.N. Kadhila, I.S.E. Ueitele, K.K.M. Nantanga   +4 more
doaj   +1 more source

Value Chain for Non-Indigenous Bivalves in Greece: A Preliminary Survey for the Pearl Oyster Pinctada imbricata radiata

Journal of Marine Science and Engineering, 2023
The present study investigates through an integrated survey, for the first time in Greek shellfish market, the marketing distribution towards a new edible shellfish product that of the non-indigenous pearl oyster Pinctada imbricata radiata.
John A. Theodorou, Vasileios Minasidis, Athina Ziou, Alexandra S. Douligeri, Marios Gkikas, Evangelia Koutante, George Katselis, Orestis Anagnopoulos, Nikos Bourdaniotis, Dimitrios K. Moutopoulos   +9 more
doaj   +1 more source

Pearl shape classification using deep convolutional neural networks from Tahitian pearl rotation in Pinctada margaritifera

Scientific Reports, 2023
Tahitian pearls, artificially cultivated from the black-lipped pearl oyster Pinctada margaritifera, are renowned for their unique color and large size, making the pearl industry vital for the French Polynesian economy.
Paul-Emmanuel Edeline, Mickaël Leclercq, Jérémy Le Luyer, Sébastien Chabrier, Arnaud Droit   +4 more
doaj   +1 more source

Shell colors and microstructures of four pearl oyster species in the South China Sea

Aquaculture Reports, 2022
Wild marine pearl oyster shells have rich colors, and the color and gloss of pearls cultivated by pearl oysters are closely related to the pearl layer color of the mantle.
Zhenghua Deng, Jing Sun, Haijun Wei, Wang Zhao, Mingqiang Chen, Youning Li, Gang Yu, Yu Wang   +7 more
doaj   +1 more source

DNA fingerprinting of pearls to determine their origins. [PDF]

PLoS ONE, 2013
We report the first successful extraction of oyster DNA from a pearl and use it to identify the source oyster species for the three major pearl-producing oyster species Pinctada margaritifera, P. maxima and P. radiata. Both mitochondrial and nuclear gene
Joana B Meyer, Laurent E Cartier, Eric A Pinto-Figueroa, Michael S Krzemnicki, Henry A Hänni, Bruce A McDonald   +5 more
doaj   +1 more source

Influence of farmed pearl oysters and associated biofouling communities on nutrient regeneration in lagoons of French Polynesia

Aquaculture Environment Interactions, 2014
Bivalve cultivation can significantly contribute to nutrient cycling in semi-enclosed ecosystems. We investigated the influence of suspended pearl oyster culture on nutrient regeneration in the water column of 3 oligotrophic lagoons in French Polynesia ...
E Lacoste, Y Gueguen, G Le Moullac, MS Koua, N Gaertner-Mazouni   +4 more
doaj   +1 more source

A homeodomain transcription factor gene, PfMSX, activates expression of Pif gene in the pearl oyster Pinctada fucata. [PDF]

PLoS ONE, 2014
We reported pearl oyster Pinctada fucata cDNA and genomic characterization of a new homeobox-containing protein, PfMSX. The PfMSX gene encodes a transcription factor that was localized to the nucleus.
Mi Zhao, Maoxian He, Xiande Huang, Qi Wang   +3 more
doaj   +1 more source

Sterols of the pearl-oyster. [PDF]

NIPPON SUISAN GAKKAISHI, 1987
The sterols of pearl-oyster Pinctada martensi were isolated by preparative HPLC, and identi-fied by GC-MS and IR. The structures of 21 sterols were established. And the sterol composi-tion was determined by using GC. The major components were Δ5-sterols.
openaire   +3 more sources