Molecular characterization and expression patterns of a B-type nuclear lamin during sea urchin embryogenesis

Article Abstract:

A lamin has been identified in the sea urchin whose structure is more closely related to vertebrate lamin than invertebrate lamin. The lamin gene is not expressed in unfertilized sea urchin eggs and embryos until primary mesenchymal cells appear. The increase occurred primarily in the B-type lamin.

Analysis, Nuclear membranes, Nuclear membrane, Sea urchin embryo

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Assembly of spermatid acrosome depends on microtubule organization during mammalian spermiogenesis

Article Abstract:

The role of microtubules in acrosome structure formation and Golgi apparatus formation during spermiogenesis is presented.

United States, Chile, Influence, Golgi apparatus, Microtubules, Spermatogenesis in animals, Animal spermatogenesis

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Acrosome reaction is subfamily specific in sea star fertilization

Article Abstract:

The presence of acrosome reaction of sperms in members of some subfamilies of sea stars during fertilization is discussed.

Japan, Spermatozoa, Sperm, Fertilization (Biology), Starfishes

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