Results 111 to 120 of about 1,722 (140)
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Fish and Shellfish Immunology, 2022
In the process of production of freshwater pearl, implanted mantle pieces undergo a series of complex physiological and biochemical processes to form pearl sac, which produce pearl. This is a very important site of occurrence due to immune-induced biomineralization, while its molecular regulatory mechanism is still unclear.
Yuanshuai Fu, Zhiyi Bai, Wenjuan Li
exaly +3 more sources
In the process of production of freshwater pearl, implanted mantle pieces undergo a series of complex physiological and biochemical processes to form pearl sac, which produce pearl. This is a very important site of occurrence due to immune-induced biomineralization, while its molecular regulatory mechanism is still unclear.
Yuanshuai Fu, Zhiyi Bai, Wenjuan Li
exaly +3 more sources
Marine Biotechnology, 2010
For pearl culture, the pearl oyster is forced open and a nucleus is implanted into the gonad with a mantle graft. The outer mantle epithelial cells of the implanted mantle graft elongate and surrounding the nucleus a pearl sac is formed. Shell matrix proteins secreted by the pearl sac play an important role in the regulation of pearl formation ...
Nariaki Inoue +2 more
exaly +6 more sources
For pearl culture, the pearl oyster is forced open and a nucleus is implanted into the gonad with a mantle graft. The outer mantle epithelial cells of the implanted mantle graft elongate and surrounding the nucleus a pearl sac is formed. Shell matrix proteins secreted by the pearl sac play an important role in the regulation of pearl formation ...
Nariaki Inoue +2 more
exaly +6 more sources
Marine Biotechnology, 2012
Pearl oyster Pinctada martensii is cultured for production of pearl in China. It needs to implant a mantle graft cut from a donor oyster and a seed nucleus into the gonad of the host oyster to produce a pearl. Pearl sac surrounding the nucleus is formed by the proliferation of the implanted mantle graft from the outer mantle epithelial cells in the ...
Qingheng Wang +2 more
exaly +3 more sources
Pearl oyster Pinctada martensii is cultured for production of pearl in China. It needs to implant a mantle graft cut from a donor oyster and a seed nucleus into the gonad of the host oyster to produce a pearl. Pearl sac surrounding the nucleus is formed by the proliferation of the implanted mantle graft from the outer mantle epithelial cells in the ...
Qingheng Wang +2 more
exaly +3 more sources
Aquaculture, 2018 Abstract The pearl culture industry using the Akoya pearl oyster Pinctada fucata in Japan has been suffering from low productivity due to the proportion of low-quality pearls, which are not round in shape and have blemishes on the surface, is fairly high with over 70% of pearls effected. Recent studies indicate that the immersion treatment of oysters
Takashi Atsumi, Akira Komaru
exaly +7 more sources
Thalassas, 2017
Calmodulin (CaM) is a pivotal multifunction regulator of calcium metabolism in nearly all organisms, and earlier studies revealed its underlying involvement of shell or pearl formation in oysters. Culture pearls are formed within complete pearl sacs. However, whether CaM functions in pearl sac formation or not is not reported.
Kou Peng, Jun-Hua Wang, Yi-Jiang Hong
exaly +2 more sources
Calmodulin (CaM) is a pivotal multifunction regulator of calcium metabolism in nearly all organisms, and earlier studies revealed its underlying involvement of shell or pearl formation in oysters. Culture pearls are formed within complete pearl sacs. However, whether CaM functions in pearl sac formation or not is not reported.
Kou Peng, Jun-Hua Wang, Yi-Jiang Hong
exaly +2 more sources
Cultured Pearl Surface Quality Profiling by the Shell Matrix Protein Gene Expression in the Biomineralised Pearl Sac Tissue of Pinctada margaritifera [PDF]
Marine Biotechnology, 2018 Nucleated pearls are produced by molluscs of the Pinctada genus through the biomineralisation activity of the pearl sac tissue within the recipient oyster. The pearl sac originates from graft tissue taken from the donor oyster mantle and its functioning is crucial in determining key factors that impact pearl quality surface characteristics.
Carole Blay +2 more
exaly +4 more sources
Gene, 2015
Epidermal growth factor receptor (EGFR) plays an important role in cell growth, proliferation, differentiation and migration. Yet whether it functions in pearl formation or not is not reported. In this study, EGFR was cloned from the pearl oyster Pinctada fucata (named as Pf-EGFR) and its expression profiles were investigated.
Wenjie, Zhu +6 more
openaire +2 more sources
Epidermal growth factor receptor (EGFR) plays an important role in cell growth, proliferation, differentiation and migration. Yet whether it functions in pearl formation or not is not reported. In this study, EGFR was cloned from the pearl oyster Pinctada fucata (named as Pf-EGFR) and its expression profiles were investigated.
Wenjie, Zhu +6 more
openaire +2 more sources
Aquaculture, 2013
Abstract In the pearl culture it is still unclear whether cells in mantle grafts from donors remain in the pearl sac and whether they contribute to nacre formation in Akoya pearl oyster (Pinctada fucata). In this study, we compared the nucleotide sequences of the polymorphic genes coding for two important matrix proteins N16 and N19 among the donor ...
Tetsuro Samata, Atushi Fujiwara
exaly +2 more sources
Abstract In the pearl culture it is still unclear whether cells in mantle grafts from donors remain in the pearl sac and whether they contribute to nacre formation in Akoya pearl oyster (Pinctada fucata). In this study, we compared the nucleotide sequences of the polymorphic genes coding for two important matrix proteins N16 and N19 among the donor ...
Tetsuro Samata, Atushi Fujiwara
exaly +2 more sources
Marine Biotechnology, 2019
Matrix proteins regulate crystal nucleation, morphology, and polymorphism during pearl biomineralization and have significant correlations with pearl quality traits in nucleated pearls. However, there is little information about the connection between pearl quality traits and matrix proteins in non-nucleated pearls.
Can Jin +3 more
openaire +2 more sources
Matrix proteins regulate crystal nucleation, morphology, and polymorphism during pearl biomineralization and have significant correlations with pearl quality traits in nucleated pearls. However, there is little information about the connection between pearl quality traits and matrix proteins in non-nucleated pearls.
Can Jin +3 more
openaire +2 more sources
Marine Genomics, 2012
Cultured pearl production is a complex biological process involving the implantation of a mantle graft from a donor pearl oyster along with a bead nucleus into the gonad of a second recipient host oyster. Therefore, pearl production potentially involves the genetic co-operation of two oyster genomes.
Kyall R Zenger, Dean R Jerry
exaly +4 more sources
Cultured pearl production is a complex biological process involving the implantation of a mantle graft from a donor pearl oyster along with a bead nucleus into the gonad of a second recipient host oyster. Therefore, pearl production potentially involves the genetic co-operation of two oyster genomes.
Kyall R Zenger, Dean R Jerry
exaly +4 more sources