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National Repository of Grey Literature 2 records found  Search took 0.01 seconds. 
The development of \kur{Spodoptera littoralis} (Boisduval) on the geneticaly modified potatoe expressing bacterial toxin Cry3Aa
 SVOBODOVÁ, Zdeňka
Spodoptera littoralis (Boisd.) larvae were fed potato leaves of the variety Newleaf Superior (NLS) that expresses Bacillus thuringiensis toxin Cry3Aa and is therefore resistant to the Colorado potato beetle, Leptinotarsa decemlineata (Say). The leaf content of Cry3Aa was determined by ELISA. Control larvae received leaves of the nearly isogenic but nontransgenic potato variety Superior. The developmental rate, mortality, weight of prepupa or pupa, female fecundity, and the egg hatchability of S. littoralis were independent of the potato type. The results suggest that Cry 3Aa toxin in the potatoe leaves has no negative effect on the development of caterpillars that consume them.
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Effect of recombinant toxin Cry3Aa on development of \kur{Spodoptera littoralis}
 HUSÁKOVÁ, Jana
This bachelor thesis compares the effect of recombinant and natural Bacillus thuringiensis Cry3Aa toxin upon the development of non-target insect Spodoptera littoralis (Lepidoptera, Noctuidae). Caterpillars of Spodoptera littoralis were fed with Premix artificial diet containing both toxins in 8 ppm concentration. Following characteristics were monitored: weight of larval increments, pupal weight, duration of the 5th, the 6th, prepupal and pupal instar, number of laid eggs and number of hatched larvae. The efficiency of conversion of ingested food (ECI) was calculated and growth curves were constructed. No significant effect of both toxins was recorded.
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