Acta Entomologica Sinica (1965) 14, 211-224

Quo Fu (1965)
[Studies on the reproduction of the Oriental Migratory Locust: the role of the corpora allata]
Acta Entomologica Sinica 14 (3), 211-224
Abstract: Experiments on Locusta migratoria manilensis were designed to show the relationship between the corpora allata and growth of the oocytes. Increase in size of the leading oocytes in a female is correlated with an increase in size of the corpora allata. Oocytes in females allatectomized 1-2 days after emergence failed to grow, even in females forced to copulate, and no eggs were laid. Allatectomized females with implanted corpora allata regained the potential for egg production. Normal females receiving implanted extra corpora (from males or females) produced almost twice the normal number of egg pods, after a normal pre-oviposition period. Parthenogenetic females had greatly extended pre-oviposition periods of 30-48 days; this period was shortened to 15-25 days in individuals with implanted extra corpora allata. Severance of the corporis allati nervis had no effect on egg production. It is suggested that a corpus allatum hormone controls the growth of oocytes by regulating the transfer of nutrients from the fat body to the ovary. The body-weight of allatectomized females increases as the fat body enlarges (faster than in normal females). Allatectomized males would copulate normally and could fertilize normal females.
(The abstract is excluded from the Creative Commons licence and has been copied from Acridological Abstracts with permission by NRI, Univ. of Greenwich at Medway.)
(original language: Chinese)

Research topic(s) for pests/diseases/weeds:
general biology - morphology - evolution

---

Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Locusta migratoria