NDLI: Increased insect resistance in transgenic wheat stably expressing trypsin inhibitor CMe

Content Provider	Springer Nature Link
Author	Altpeter, Fredy Diaz, Isabel McAuslane, Heather Gaddour, Kamel Carbonero, Pilar Vasil, Indra K.
Copyright Year	1999
Abstract	Proteinase inhibitors have been proposed to function as plant defence agents against herbivorous pests. We have introduced the barley trypsin inhibitor CMe (BTI-CMe) into wheat (Triticum aestivum L.) by biolistic bombardment of cultured immature embryos. Of the 30 independent transgenic wheat lines selected, 16 expressed BTI-CMe. BTI-CMe was properly transcribed and translated as indicated by northern and western blot, with a level of expression in transgenic wheat seeds up to 1.1% of total extracted protein. No expression was detected in untransformed wheat seeds. Functional integrity of BTI-CMe was confirmed by trypsin inhibitor activity assay. The significant reduction of the survival rate of the Angoumois grain moth (Sitotroga cerealella, Lepidoptera: Gelechiidae), reared on transgenic wheat seeds expressing the trypsin inhibitor BTI-CMe, compared to the untransformed control confirmed the potential of BTI-CMe for the increase of insect resistance. However, only early-instar larvae were inhibited in transgenic seeds and expression of BTI-CMe protein in transgenic leaves did not have a significant protective effect against leaf-feeding insects.
Starting Page	53
Ending Page	63
Page Count	11
File Format	PDF
ISSN	13803743
Journal	Molecular Breeding
Volume Number	5
Issue Number	1
e-ISSN	15729788
Language	English
Publisher	Kluwer Academic Publishers
Publisher Date	1999-01-01
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Plant Sciences
Content Type	Text
Resource Type	Article
Subject	Genetics Plant Science Molecular Biology Biotechnology Agronomy and Crop Science

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