Pearl formation in the Japanese pearl oyster ( Pinctada fucata ) by CaCO 3 polymorphs: Pearl quality‐specific biomineralization processes and their similarity to shell regeneration

2019 ◽  
Vol 50 (6) ◽  
pp. 1710-1717 ◽  
Author(s):  
Yu Sato ◽  
Akira Komaru
Keyword(s):  
Pearl Oyster ◽  
Pinctada Fucata ◽  
Pearl Quality ◽  
Shell Regeneration ◽  
Pearl Formation

Hemocytes participate in calcium carbonate crystal formation, transportation and shell regeneration in the pearl oyster Pinctada fucata

2016 ◽  
Vol 51 ◽  
pp. 263-270 ◽  
Author(s):  
Shiguo Li ◽  
Yangjia Liu ◽  
Chuang Liu ◽  
Jingliang Huang ◽  
Guilan Zheng ◽  
...  
Keyword(s):  
Calcium Carbonate ◽  
Pearl Oyster ◽  
Pinctada Fucata ◽  
Crystal Formation ◽  
Shell Regeneration

Highly expressed EGFR in pearl sac may facilitate the pearl formation in the pearl oyster, Pinctada fucata

Gene ◽  
2015 ◽  
Vol 566 (2) ◽  
pp. 201-211 ◽  
Author(s):  
Wenjie Zhu ◽  
Sigang Fan ◽  
Guiju Huang ◽  
Dongling Zhang ◽  
Baosuo Liu ◽  
...  
Keyword(s):  
Pearl Oyster ◽  
Pinctada Fucata ◽  
Pearl Sac ◽  
Pearl Formation

scholarly journals Pearl formation by transplantation of outer epithelial cells isolated from the mantle of pearl oyster Pinctada fucata

2014 ◽  
Vol 80 (4) ◽  
pp. 578-588 ◽  
Author(s):  
MASAHIKO AWAJI ◽  
TAKASHI YAMAMOTO ◽  
MAKOTO KAKINUMA ◽  
KIYOHITO NAGAI ◽  
SHUGO WATABE
Keyword(s):  
Epithelial Cells ◽  
Pearl Oyster ◽  
Pinctada Fucata ◽  
Pearl Formation

The Mining of Pearl Formation Genes in Pearl Oyster Pinctada fucata by cDNA Suppression Subtractive Hybridization

2011 ◽  
Vol 14 (2) ◽  
pp. 177-188 ◽  
Author(s):  
Ning Wang ◽  
Shigeharu Kinoshita ◽  
Naoko Nomura ◽  
Chihiro Riho ◽  
Kaoru Maeyama ◽  
...  
Keyword(s):  
Suppression Subtractive Hybridization ◽  
Subtractive Hybridization ◽  
Pearl Oyster ◽  
Pinctada Fucata ◽  
Pearl Formation

scholarly journals Whole transcriptome sequencing and biomineralization gene architecture associated with cultured pearl quality traits in the pearl oyster, Pinctada margaritifera

2018 ◽  
Author(s):  
J. Le Luyer ◽  
P. Auffret ◽  
V. Quillien ◽  
N. Leclerc ◽  
C. Reisser ◽  
...  
Keyword(s):  
Draft Genome ◽  
Pearl Oyster ◽  
Sequencing Technologies ◽  
Whole Transcriptome Sequencing ◽  
Pearl Quality ◽  
The Veil ◽  
Pearl Formation ◽  
Transcriptome Expression ◽  
Living Organisms ◽  
Whole Transcriptome

AbstractBackgroundCultured 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. margaritifera pearl quality is one of the biggest challenges that Polynesian research has faced to date. To achieve this goal, a better understanding of the complex mechanisms related to nacre and pearl formation is essential and can now be approached through the use of massive parallel sequencing technologies. The aim of this study was to use RNA-seq to compare whole transcriptome expression of pearl sacs that had producing pearls with high and low quality. For this purpose, a comprehensive reference transcriptome of P. margaritifera was built based on multi-tissue sampling (mantle, gonad, whole animal), including different living stages (juvenile, adults) and phenotypes (colour morphotypes, sex).ResultsStrikingly, few genes were found to be up-regulated for high quality pearls (n = 16) compared to the up-regulated genes in low quality pearls (n = 246). Biomineralization genes up-regulated in low quality pearls were specific to prismatic and prism-nacre layers. Alternative splicing was further identified in several key biomineralization genes based on a recent P. margaritifera draft genome.ConclusionThis study lifts the veil on the multi-level regulation of biomineralization genes associated with pearl quality determination.

scholarly journals Direct control of shell regeneration by the mantle tissue in the pearl oysterPinctada fucatavia accelerating CaCO3 nucleation

2019 ◽  
Author(s):  
Jingliang Huang ◽  
Yangjia Liu ◽  
Taifeng Jiang ◽  
Wentao Dong ◽  
Guilian Zheng ◽  
...  
Keyword(s):  
De Novo ◽  
Pearl Oyster ◽  
Shell Morphology ◽  
Pinctada Fucata ◽  
Gravimetric Analysis ◽  
Electronic Microscopy ◽  
Mantle Tissue ◽  
Shell Matrix ◽  
Close Relationship ◽  
Shell Regeneration

AbstractMolluscan bivalves rapidly repair the damaged shells to prevent further injury. However, it remains unclear how this process is precisely controlled. In this study, we applied scanning electronic microscopy, transmission electronic microscopy and histochemical analysis to examine the detailed shell regeneration process of the pearl oysterPinctada fucata. It was found that the shell damage caused the mantle tissue to retract, which resulted in dislocation of the mantle zones to their correspondingly secreted shell layers. However, the secretory repertoires of the different mantle zones remained unchanged. As a result, the dislocation of the mantle tissue dramatically affected the shell morphology, and the unusual presence of the submarginal zone on the nacreous layers caused de novo precipitation of prismatic layers on the nacreous layers. Real-time PCR revealed that the expression of the shell matrix proteins (SMPs) were significantly upregulated, which was confirmed by the thermal gravimetric analysis (TGA) of the newly formed shell. The increased matrix secretion accelerated CaCO3nucleation thus promoting shell deposition. Taken together, our study revealed the close relationship between the physiological activities of the mantle tissue and the morphological change of the regenerated shells.

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