| Registro completo |
| Provedor de dados: |
ArchiMer
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| País: |
France
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| Título: |
Evolution des acides nucleiques au cours du developpement larvaire de la crevette rose Palaemon serratus (Pennant).
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| Autores: |
Campillo, Albert
Regnault, M.
Luquet, P.
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| Data: |
1975-09
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| Ano: |
1975
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| Palavras-chave: |
Calliphora
Crangon crangon
Palaemon serratus
Nucleic acids
Larval development
Invertebrate larvae
Biochemistry
Physiology
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| Resumo: |
The evolution of nucleic acids in larvae of P. serratus reared in the laboratory from hatching to metamorphosis has been studied. From the 1st larval stage to the post-larval stage, DNA and RNA concn decrease: from 185 to 95 uMoles-bases/g PSD for DNA and from 133.5 to 78.75 uMoles-bases for RNA. The concn decrease is not regular; it is emphasized between stages 4 and 5 on the one hand, and between stage 7 and the post-larva on the other hand. The amount of DNA and RNA per larva increases proportionally to the wet weight from stage 1 to the post-larva. As the weight is multiplied by 7.6, total DNA and total RNA are multiplied by 3.80 and 4.25 respectively. The RNA/DNA ratio has a mean value of 0.77; it increases slightly from stage 1 (0.72) to the post-larva. (0.88). Growth is mostly dependent on cellular and from stage 5 to stage 7. During the transitory periods (from st.4 to st.5 and from st.7 to PL) increase of cellularsize (hypertrophy) intervenes as much as 100% in the weight increase observed. The biochemical variations noticed through the complete larval development of P. serratus seem to agree with some distinct morphological phases.
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| Tipo: |
Text
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| Idioma: |
Francês
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| Identificador: |
http://archimer.ifremer.fr/doc/1975/publication-2023.pdf
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| Editor: |
ISTPM
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| Relação: |
http://archimer.ifremer.fr/doc/00000/2023/
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| Formato: |
application/pdf
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| Fonte: |
Revue des Travaux de l'Institut des Pêches Maritimes (0035-2276) (ISTPM), 1975-09 , Vol. 39 , N. 3 , P. 333-342
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| Direitos: |
Ifremer
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