[Variability of some blood serum beta-globulins in the life cycle of the true sturgeons (Acipenseridae)].
Identifieur interne : 000262 ( Ncbi/Curation ); précédent : 000261; suivant : 000263[Variability of some blood serum beta-globulins in the life cycle of the true sturgeons (Acipenseridae)].
Auteurs : M F Subbotkin ; T A SubbotkinaSource :
- Zhurnal evoliutsionnoi biokhimii i fiziologii [ 0044-4529 ]
English descriptors
- KwdEn :
- MESH :
- chemical , analysis : Beta-Globulins.
- blood : Fishes.
- growth & development : Fishes.
- Animals, Species Specificity.
Abstract
Blood proteins of true sturgeons of three genera Acipenser, Huso, and Pseudocaphirhynchus preserving unidirectional variability in ontogenesis regardless of peculiarities of the fish ecology can indicate unity of origin of the current species. Age-related protein transformations have heterochronous character. The slowest ontogenetic development lasting 4-6 years is peculiar to one of antigens of beta-globulins. Analysis of variability of beta-globulins in the age diapason beginning from the 4-month-old fry and including adult spawned individuals indicates different functional significance of their individual components. The beta A-globulin absent at early postembryonic stages becomes the second, after albumin, quantitatively predominant antigen in the adult fish blood. The amount of beta B-globulin, like antigens of alpha 1- and alpha 2-globulins preserving relative ontogenetic stability, can decrease significantly in freshwater sturgeons due to their preparation for spawning.
PubMed: 18767555
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pubmed:18767555Le document en format XML
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