Changes in the Intensity of Respiration during Ontogenesis of Some Invertebrates |
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Authors: | Radzinskaya L I Nikol'skaya I S Alekseeva T A Vladimirova I G Kovalenko P I Ozernyuk N D |
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Institution: | (1) Kol'tsov Institute of Developmental Biology, Russian Academy of Sciences, ul. Vavilova 26, Moscow, 119991, Russia |
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Abstract: | We studied the dynamic of respiration intensity during ontogenesis of flat worms (Dugesia tigrina), molluscs (Anodonta piscinalis and Viviparus viviparus, and insects (Leptinotarsa decemlineata). In planarians that reproduce vegetatively, the intensity of respiration increases just after fission and decreases at the subsequent phases of growth. In A. piscinalis, this index of metabolism increases during embryonic and early larval development and decreases at the later developmental stages. In V. viviparus, which develops in the female genital tract, the intensity of respiration remains unchanged during embryogenesis and decreases during late embryogenesis and subsequent phases of growth. In L. decemlineata, the intensity of respiration increases during embryonic and early larval development and then decreases to undergo cyclic changes times to molts. This index markedly decreases in the pupae, increases in the beginning of imaginal period, and then again decreases. |
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Keywords: | early ontogenesis intensity of respiration Dugesia tigrina Anodonta piscinalis Viviparus viviparus Leptinoptarsa decemlineata |
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