Please use this identifier to cite or link to this item: http://hdl.handle.net/2067/2270
Title: Biosaggi plurigenerazionali sull’Helicoverpa armigera (Hüb.) (Lepidoptera, Noctuidae) alimentata con foglie di pomodoro transgenico per il gene KTI3 (Kunitz)
Other Titles: Bioassays on consecutive generations of Helicoverpa armigera (Hüb.) (Lepidoptera, Noctuidae) feeded with KTI3 (Kunitz) transegenic tomato leaves
Authors: Speranza, Stefano
Fonzo, Valentina
Soressi, Gian Piero
Pucci, Claudio
Keywords: Helicoverpa armigera;Tomato;Pomodoro;Proteinase inhibitor;Kunitz;KTI3
Issue Date: 2004
Publisher: Tipografia Polaris - Sondrio
Source: Speranza, S. et al. 2004. Biosaggi plurigenerazionali sull’Helicoverpa armigera (Hüb.) (Lepidoptera, Noctuidae) alimentata con foglie di pomodoro transgenico per il gene kti3 (Kunitz). In: Attidel XIX Congresso nazionale italiano di entomologia (Catania, 10-15 giugno 2002). Sondrio, Tipografia Polaris, pp. 671-677
Abstract: 
H. armigera is, together with aphids, one of the industrial tomato key insects in central Italy. Its trophic action causes a decrease in the marketable production with high social costs for the agricultural operators. The aim of the present work was to perform a bioassay on the cotton bollworm, feeding the larva with Kunitz proteinase inhibitor coded by the KTI3 gene transgenic plant leaves. The molecules belonging to the Kunitz family have a molecular weight of 21-24 kDa and inhibit the serine proteinase, resulting active in the pH interval 9-11, that is the distinctive interval of Lepidoptera larva midgut. Riogrande cultivar tomato plants were transformed with the KTI3 gene through Agrobacterium tumefaciens. The analysis of the data obtained and their elaboration show a direct effect (negative) on the Lepidoptera biology, particularly in the second generation; this result could have, in the future, a direct containment action of the phytophagous populations in nature, causing a relevant decrease of the marketable production cull percentage.
URI: http://hdl.handle.net/2067/2270
Appears in Collections:DIPROP - Archivio della produzione scientifica

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