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DDT as an accelerator of limb regeneration and molting in fiddler crabs

1976; Elsevier BV; Volume: 4; Issue: 4 Linguagem: Inglês

10.1016/0302-3524(76)90020-7

1878-3023

Judith S. Weis, Linda H. Mantel,

Neurobiology and Insect Physiology Research

Regeneration in the fiddler crabs, Uca pugilator and Uca pugnax was studied after single and multiple autotomy of limbs and exposure to DDT at 10 and 25 parts/109. DDT accelerated the rate of limb regeneration and, in the case of animals with multiple autotomy, shortened the time to ecdysis as well. These responses may be a result of heightened excitation of the nervous system produced by DDT and the resulting secretion of neuroendocrine factors promoting limb regeneration and molting. Sevin, malation and parathion had no effects on regeneration or molting.