Sclerocytes are specialised cells that secrete the mineralized structures in the body wall of some invertebrates. In sponges they secrete calcareous or siliceous spicules which are found in the mesohyl layer of sponges. The sclerocytes produce spicules via formation of a cellular triad. The triad of cells then undergo mitosis, creating six sclerocytes. In pairs, the sclerocytes secrete the minerals which create the spicules.
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| - Sclérocyte (fr)
- Skleroblast (pl)
- Sclerocyte (en)
- Esclerócito (pt)
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| - Les sclérocytes chez les éponges, en particulier les calcisponges, sont des cellules présentes dans la mésohyle qui élaborent les spicules calcaires.
* Portail de la biologie marine
* Portail de la zoologie (fr)
- Skleroblast, sklerocyt – komórka wytwarzająca nieorganiczne elementy szkieletu gąbek (Porifera) i parzydełkowców (Cnidaria). Skleroblasty gąbek wytwarzają szkielet wapienny (głównie kalcyt, czasem aragonit) i krzemionkowy. (pl)
- Esclerócitos são as células responsáveis pela secreção das espículas, estruturas mineralizadas, nos poríferos. Em esponjas, segregam espículas de calcário ou sílica que se encontram no mesênquima. Os esclerócitos produzem espículas via a formação de uma tríade de células. Esta tríade passa por mitose, criando seis esclerócitos. Aos pares, os esclerócitos segregam os minerais que criam as espículas. Em estrelas do mar, estão presentes na derme e segrega os microcristais de calcite a partir dos quais são formados os . Também fazem crescer e reparam os ossículos. (pt)
- Sclerocytes are specialised cells that secrete the mineralized structures in the body wall of some invertebrates. In sponges they secrete calcareous or siliceous spicules which are found in the mesohyl layer of sponges. The sclerocytes produce spicules via formation of a cellular triad. The triad of cells then undergo mitosis, creating six sclerocytes. In pairs, the sclerocytes secrete the minerals which create the spicules. (en)
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| - Les sclérocytes chez les éponges, en particulier les calcisponges, sont des cellules présentes dans la mésohyle qui élaborent les spicules calcaires.
* Portail de la biologie marine
* Portail de la zoologie (fr)
- Sclerocytes are specialised cells that secrete the mineralized structures in the body wall of some invertebrates. In sponges they secrete calcareous or siliceous spicules which are found in the mesohyl layer of sponges. The sclerocytes produce spicules via formation of a cellular triad. The triad of cells then undergo mitosis, creating six sclerocytes. In pairs, the sclerocytes secrete the minerals which create the spicules. In starfish they are present in the dermis and secrete the calcite microcrystals from which the ossicles are formed. They also function in growth and repair of the ossicles. (en)
- Skleroblast, sklerocyt – komórka wytwarzająca nieorganiczne elementy szkieletu gąbek (Porifera) i parzydełkowców (Cnidaria). Skleroblasty gąbek wytwarzają szkielet wapienny (głównie kalcyt, czasem aragonit) i krzemionkowy. (pl)
- Esclerócitos são as células responsáveis pela secreção das espículas, estruturas mineralizadas, nos poríferos. Em esponjas, segregam espículas de calcário ou sílica que se encontram no mesênquima. Os esclerócitos produzem espículas via a formação de uma tríade de células. Esta tríade passa por mitose, criando seis esclerócitos. Aos pares, os esclerócitos segregam os minerais que criam as espículas. Em estrelas do mar, estão presentes na derme e segrega os microcristais de calcite a partir dos quais são formados os . Também fazem crescer e reparam os ossículos. (pt)
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