Characterization of transcriptome and identification of biomineralization genes in winged pearl oyster ( Pteria penguin ) mantle tissue

2017 ◽  
Vol 21 ◽  
pp. 67-76 ◽  
Author(s):  
Haimei Li ◽  
Baosuo Liu ◽  
Guiju Huang ◽  
Sigang Fan ◽  
Bo Zhang ◽  
...  
Keyword(s):  
Pearl Oyster ◽  
Mantle Tissue ◽  
Pteria Penguin

Elemental composition of mantle tissue granules in Hyridella depressa (Unionida) from the Hawkesbury-Nepean River system, Australia: inferences from catchment chemistry

2000 ◽  
Vol 51 (2) ◽  
pp. 183 ◽  
Author(s):  
Maria Byrne ◽  
Peter A. Vesk
Keyword(s):  
Freshwater Mussel ◽  
River System ◽  
Direct Analysis ◽  
Common Elements ◽  
Mantle Tissue ◽  
South Wales ◽  
The Common ◽  
Australian Freshwater ◽  
River Site

The Australian freshwater mussel Hyridella depressa sequesters elements in calcium phosphate (CaP) granules that form extensive aggregations in its tissues. Elements contained in these granules were determined by X-ray microanalysis of river and lake mussels from the Hawkesbury–Nepean River system, New South Wales. Granules in freeze-substituted mantle tissue were analysed to determine the variation in element profiles in granules among mussels and among sites. For the common elements Ca, P, Fe, Mg and Mn, granule composition reflected catchment lithology and site trophic status and indicated exogenous input. These were most important for differentiation among lake sites and also indicated differences between lake and river mussels. Site differences seen with some common elements in granules from lake mussels correlated with differences in water chemistry. Trace elements, particularly Al, Cu, Zn and Pb, were also important in lake and river site differentiation. The granules play a major role in element dynamics in freshwater mussel tissues and provide a focal structure for direct analysis of element accumulation by these bivalves. The results indicate that characterization of element content of granules in mussel populations would provide valuable insights into animal–element interactions in freshwater systems for ecological and ecotoxicological investigations.

scholarly journals Characterization of a thioester-containing protein from the pearl oyster Pinctada fucata and its role in phagocytosis

2021 ◽  
Vol 21 ◽  
pp. 100833
Author(s):  
Jing Wang ◽  
Guiying Li ◽  
Bai Liufu ◽  
Kaiqi Lin ◽  
Jinfeng Li ◽  
...  
Keyword(s):  
Pearl Oyster ◽  
Pinctada Fucata

scholarly journals Biochemical and molecular characterization of N66 from the shell ofPinctada mazatlanica

PeerJ ◽  
2019 ◽  
Vol 7 ◽  
pp. e7212
Author(s):  
Crisalejandra Rivera-Perez ◽  
Catalina Magallanes-Dominguez ◽  
Rosa Virginia Dominguez-Beltran ◽  
Josafat Jehu Ojeda-Ramirez de Areyano ◽  
Norma Y. Hernandez-Saavedra
Keyword(s):  
Posttranslational Modifications ◽  
Protein A ◽  
Pearl Oyster ◽  
Peptide Sequence ◽  
Calcium Carbonate Precipitation ◽  
Base Pairs ◽  
Shell Matrix ◽  
Glycosylation Sites ◽  
Shell Matrix Proteins

Mollusk shell mineralization is a tightly controlled process made by shell matrix proteins (SMPs). However, the study of SMPs has been limited to a few model species. In this study, the N66 mRNA of the pearl oysterPinctada mazatlanicawas cloned and functionally characterized. The full sequence of the N66 mRNA comprises 1,766 base pairs, and encodes one N66 protein. A sequence analysis revealed that N66 contained two carbonic anhydrase (CA) domains, a NG domain and several glycosylation sites. The sequence showed similarity to the CA VII but also with its homolog protein nacrein. The native N66 protein was isolated from the shell and identified by mass spectrometry, the peptide sequence matched to the nucleotide sequence obtained. Native N66 is a glycoprotein with a molecular mass of 60–66 kDa which displays CA activity and calcium carbonate precipitation ability in presence of different salts. Also, a recombinant form of N66 was produced inEscherichia coli, and functionally characterized. The recombinant N66 displayed higher CA activity and crystallization capability than the native N66, suggesting that the lack of posttranslational modifications in the recombinant N66 might modulate its activity.

Distribution and Characterization of Rhogocyte Cell Types in the Mantle Tissue of Haliotis laevigata

2014 ◽  
Vol 17 (2) ◽  
pp. 168-179 ◽  
Author(s):  
Fareed Sairi ◽  
Peter Valtchev ◽  
Vincent G. Gomes ◽  
Fariba Dehghani
Keyword(s):  
Cell Types ◽  
Mantle Tissue

Factors influencing the quality of half-pearls (mabé) produced by the winged pearl oyster,Pteria penguin(Röding, 1758)

2013 ◽  
Vol 46 (4) ◽  
pp. 769-776 ◽  
Author(s):  
Pranesh Kishore ◽  
Paul Southgate ◽  
Johnson Seeto ◽  
Justin Hunter
Keyword(s):  
Pearl Oyster ◽  
Factors Influencing ◽  
Pteria Penguin
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