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Egg laying by allatectomized females of the migratory grasshopper melanoplus sanguinipes



Egg laying by allatectomized females of the migratory grasshopper melanoplus sanguinipes



Journal of Insect Physiology 16(3): 461-469



Following removal of the corpora allata from newly emerged adult females of Melanoplus sanguinipes there was no maturation of eggs by about two-thirds of the operated animals. The remaining one-third had well-developed ovaries and deposited normal egg pods, but at a reduced rate as compared with normal females. There was marked growth of nervous and connective tissue from the area of the corpus cardiacum in these egg-laying, allatectomized females. We suggest that this regenerative-type growth of nervous and connective tissue may stimulate the cerebral neurosecretory cells and that the cerebral hormone(s) may be responsible for the maturation and deposition of eggs.

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Accession: 005337774

Download citation: RISBibTeXText

PMID: 5438067

DOI: 10.1016/0022-1910(70)90186-1


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