Ultrastructure, chemistry and mineralogy of the growing shell of the European abalone Haliotis tuberculata

Auzoux-Bordenave, Stéphanie; Badou, Aïcha; Gaume, Béatrice; Berland, Sophie; Helléouet, Marie-Noëlle; Milet, Christian; Huchette, Sylvain

doi:10.1016/j.jsb.2010.05.012

Cited by 51 publications

(54 citation statements)

References 44 publications

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“…The larval shells were found to consist of a series of different aragonite and organic structures with distinct crystal orientations, much like mature shell structures. This result demonstrates that ordered structures begin to form in the early life stage [37,45,46].…”

Section: Biomineralizationmentioning

confidence: 66%

“…Also observed at irregular intervals are growth lines, made up of block-like aragonite, organic layers and spherulitic aragonite. The sequence of the formation of growth lines is well reported; it involves complex control of the architecture including the crystal structure and morphologies of aragonite in the shell [29,34,37,45,46,64,65]. First, nacre growth is interrupted by the appearance of prismatic or block-like aragonite structures, followed by a layer of granular aragonite.…”

Section: Growth Linesmentioning

confidence: 99%

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The toughening mechanism of nacre and structural materials inspired by nacre

Kakisawa

Sumitomo²

2011

Science and Technology of Advanced Materials

139

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The structure and the toughening mechanism of nacre have been the subject of intensive research over the last 30 years. This interest originates from nacre's excellent combination of strength, stiffness and toughness, despite its high, for a biological material, volume fraction of inorganic phase, typically 95%. Owing to the improvement of nanoscale measurement and observation techniques, significant progress has been made during the last decade in understanding the mechanical properties of nacre. The structure, microscopic deformation behavior and toughening mechanism on the order of nanometers have been investigated, and the importance of hierarchical structure in nacre has been recognized. This research has led to the fabrication of multilayer composites and films inspired by nacre with a layer thickness below 1 µm. Some of these materials reproduce the inorganic/organic interaction and hierarchical structure beyond mere morphology mimicking. In the first part of this review, we focus on the hierarchical architecture, macroscopic and microscopic deformation and fracture behavior, as well as toughening mechanisms in nacre. Then we summarize recent progress in the fabrication of materials inspired by nacre taking into consideration its mechanical properties.

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Section: Biomineralizationmentioning

confidence: 66%

Section: Growth Linesmentioning

confidence: 99%

The toughening mechanism of nacre and structural materials inspired by nacre

Kakisawa

Sumitomo²

2011

Science and Technology of Advanced Materials

139

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“…Changes in mineralogy, crystallinity, and structure are normal in mollusks, but they usually follow a well-defined sequence. Nevertheless, the distribution of proteins probably involved in the biomineralization processes is both time and location dependent in H. tuberculata~Jardillier et al, 2008;Auzoux-Bordenave et al, 2010!. Mixed structures and mineralogies have been obtained in experiments involving mollusk shell repair and regeneration~Muzii et al., 1966;Saleuddin & Wilbur, 1969;Meenakshi et al, 1973Meenakshi et al, , 1975Chan & Saleuddin, 1974;Uozumi & Suzuki, 1979;Reed-Miller, 1983!. In most cases, the structure and mineralogy of the repaired shells do not correspond to those of the normal shell.…”

Section: Discussionmentioning

confidence: 99%

Unusual Micrometric Calcite–Aragonite Interface in the Abalone Shell Haliotis (Mollusca, Gastropoda)

et al. 2013

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Species of Haliotis~abalone! show high variety in structure and mineralogy of the shell. One of the European species~Haliotis tuberculata! in particular has an unusual shell structure in which calcite and aragonite coexist at a microscale with small patches of aragonite embedded in larger calcitic zones. A detailed examination of the boundary between calcite and aragonite using analytical microscopies shows that the organic contents of calcite and aragonite differ. Moreover, changes in the chemical composition of the two minerals seem to be gradual and define a micrometric zone of transition between the two main layers. A similar transition zone has been observed between the layers in more classical and regularly structured mollusk shells. The imbrication of microscopic patches of aragonite within a calcitic zone suggests the occurrence of very fast physiological changes in these taxa.

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“…Auzoux-Bordenave et al (2010) presentaron una revisión para siete especies de moluscos, entre ellas Ostrea edulis y Pinctada fucata, en la que señalaron que la protoconcha se compone por aragonita y trazas de carbonato amorfo, mientras que la teleoconcha por calcita. En este estudio, las conchas de las larvas de 30 días (premetamórficas) de todos los tratamientos, presentaron aragonita, mientras que calcita solo se observó en organismos cultivados a 31 °C.…”

Section: Discussionunclassified

Efecto de la temperatura y la acidificación en larvas de Strombus gigas (Mesogastropoda: Strombidae)

Villegas

Díaz

Aranda

2017

RBT

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Effect of temperature and acidification in Strombus gigas (Mesogastropoda: Strombidae) larvae. The increase in CO 2 emissions produces heating and reduced pH in the oceans, which may have negative effects on many marine organisms. This is particularly important for those with calcified structures such as the molluscs and their larval stages. We studied Strombus gigas larvae, a gastropod of commercial importance in the Caribbean Sea, in order to know the effect of water temperature and acidification on their development, growth, mortality and calcification during the larval period. A larval culture with triplicate samples was carried out employing four treatments of temperature and pH (Control = 28 °C -pH 8.1, T1 = 28 °C -pH 7.6, T2 = 31 °C -pH 8.1 and T3 = 31 °C -pH 7.6) in August 2015. We registered hatching (No. of eggs -No. of larvae hatched) and organs development, while shell growth and mortality ratio were evaluated over time. Shell calcification was studied in 30 days old larvae using EDX and RAMAN analysis. Our results showed that organs development and shell growth were higher at 31 °C treatments (initial size of 230 ± 4.12 to 313.27 ± 11.34 µm, and final size from 829.50 ± 11.33 to 1 054.50 ± 11.13 µm; from T1 to T2 respectively), and the same pattern was recorded for hatching time (18 hr) and mortality rate (~ 57 %). The Calcium proportion (% wt) was similar between treatments (34.37 ± 10.05 to 37.29 ± 16.81 % wt). Shell Raman analysis showed aragonite in all experimental treatments, with the highest values in the control (1 039.54 ± 780.26 a.u.). Calcite was detected only in 31 °C treatments (174.56 ± 127.19 a.u.), while less intensity of aragonite and calcite were registered at pH 7.6. In conclusion, S. gigas could be adapted to ocean future predictions, however, shell biomineralization processes can be affected. Rev. Biol. Trop. 65 (2): 505-515. Epub 2017 June 01.

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Ultrastructure, chemistry and mineralogy of the growing shell of the European abalone Haliotis tuberculata

Cited by 51 publications

References 44 publications

The toughening mechanism of nacre and structural materials inspired by nacre

The toughening mechanism of nacre and structural materials inspired by nacre

Unusual Micrometric Calcite–Aragonite Interface in the Abalone Shell Haliotis (Mollusca, Gastropoda)

Efecto de la temperatura y la acidificación en larvas de Strombus gigas (Mesogastropoda: Strombidae)

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