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Digitale Medien

DNA synthesis in the crayfish epidermis and its modification by ecdysterone (1975)

Wittig, Kenneth ; Stevenson, J. Ross

Springer

Journal of comparative physiology 99 (1975), S. 279-286

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Details

ISSN: 1432-136X

Quelle: Springer Online Journal Archives 1860-2000

Thema: Biologie , Medizin

Notizen: Summary 1. Replication of DNA in the epidermis of the crayfish was found to be correlated with the molting cycle. A distinct14C-thymidine incorporation peak was found in mid-premolt stages D1″ and D1‴. 2. Injected ecdysterone (2 μg/g body weight) had effects on DNA synthesis which varied with the stages of the molting cycle. It stimulated14C-thymidine incorporation in postmolt stage C1, intermolt stages C3−C4, and premolt stage D1′, but had no significant effect during any subsequent premolt stage and during early postmolt stage B. Ecdysterone induced a peak at stage D1′ that was essentially equal in magnitude to the normal peak at stage D1‴.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF00710368

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