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    • Photoperiodic effect on some enzymes and metabolites in diapausingAntheraea mylitta pupae andPhilosamia ricini larvae during development

      Radha Pant Geetha Jaiswal

      Volume 4 Issue 2 June 1982 pp 175-182

    • Fulltext

       

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/jbsc/004/02/0175-0182

    • Keywords

       

      Photoperiod; phosphomonoesterases; Phosphorylase; glycogen; Antheraea mylitta ; Philosamia ricini

    • Abstract

       

      The variation in acid phosphatase (EC 3.1.3.2) activity inAntheraea mylitta was similar in all light and dark groups exposed to different photophases (LD =0:24, 24:0, 18:6, 14:10, 10:14 and 12:12 h) maintaining all along a higher activity than its alkaline counterpart. The highest activity was recorded on day 82 in LD group 10:14 h. The non-diapausingPhilosamia ricini larvae registered highest activity in LD group 0:24 h on day 5. Alkaline phosphatase (EC 3.1.3.1) activity was low all through metamorphosis in both the lepidopterans, although significantly elevated activity was observed on day 5 in larvae of allPhilosamia ricini LD regimens and on day 82 inAntherae mylitta. Photoperiodic effect on Phosphorylase (EC 2.3.1.1) activity, glycogen and inorganic phosphates content have also been studied.

      Exposure to LD 10:14, 14:10 and 18:6 h provoked early diapause termination inAntheraea mylitta. The non-diapausingPhilosamia ricini was unaffected in moth emergence but the emerged adults of LD 24:0 and 0:24 h groups were unhealthy, small and did not mate or oviposit.

    • Author Affiliations

       

      Radha Pant1 Geetha Jaiswal1

      1. Biochemistry Department, University of Allahabad, Allahabad - 211 002

    • Dates

       
      Published
      June 1982
      Manuscript received
      8 July 1981
      Manuscript revised
      2 December 1981

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