𝔖 Bobbio Scriptorium
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The effects of continuous exposure to low concentrations of the δ-endotoxin of Bacillus thuringiensis on the development of the tobacco budworm, Heliothis virescens

✍ Scribed by Howard T. Dulmage; Eduardo Martinez


Book ID
118913150
Publisher
Elsevier Science
Year
1973
Tongue
English
Weight
726 KB
Volume
22
Category
Article
ISSN
0022-2011

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Testes or the isolated sheaths of testes from late-last-instar larvae of the tobacco budworm, Heliothis virescens, spontaneously secreted ecdysteroids in vitro. Exogenous 20-hydroxyecdysone, incubated with the testes or isolated testis sheaths, functioned in a local positive feedback system to incre