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Effects of juvenile hormone treatment on phase changes and pheromone production in the desert locust, Schistocerca gregaria (Forskal) (Orthoptera: Acrididae).

Abstract：

:The roles of juvenile hormone III (JH III) on phase changes and pheromone production were examined in laboratory-reared gregarious desert locust, Schistocerca gregaria (Forskal). The hormone was applied to 5th instar nymphs and newly emerged adult locusts. Generally, the 5th instar nymphs exhibited a higher sensitivity to hormone treatments than the adults. Hormone applications inhibited pheromone production (as measured by the amounts of phenylacetonitrile released). In addition, JH III had a significant effect on the external colouration and absorbance ratios of the haemolymph pigments. It is concluded that the effects of exogenous JH III on gregarious locusts represent a shift towards the solitarious phase.

journal_name

J Insect Physiol

journal_title

Journal of insect physiology

authors

Ismail SH,Hassanali A,Osir EO,Tawfik AI

doi

10.1016/s0022-1910(97)00079-6

keywords:

subject

Has Abstract

pub_date

1997-11-01 00:00:00

pages

1177-1182

issue

12

eissn

0022-1910

issn

1879-1611

pii

S0022-1910(97)00079-6

journal_volume

43

pub_type

杂志文章

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