Biological activity of soybean trypsin inhibitor and plant lectins against cotton bollworm/legume pod borer, Helicoverpa armigera

Shukla, S and Arora, R and Sharma, H C (2005) Biological activity of soybean trypsin inhibitor and plant lectins against cotton bollworm/legume pod borer, Helicoverpa armigera. Plant Biotechnology, 22 (1). pp. 1-6.

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Abstract

The noctuid, Helicoverpa armigera, is the most important crop pest worldwide. We evaluated the biological activity of soybean trypsin inhibitor and plant lectins against this pest to identify toxin genes for deployment through transgenic plants. Of the seven plant lectins tested, chickpea and snowdrop lectins showed marked antibiotic effects in terms of insect survival and development. Larval survival was lower in artificial diet impregnated with soybean trypsin inhibitor (49%), and snowdrop (64%) and chickpea (65%) lectins compared to untreated control diet (90%). Pupal weight was adversely affected by chickpea lectin (272.6 mg) compared as to untreated control (335.4 mg). Lower pupation and/or adult emernence ( 50%) was observed in diets impregnated with soybean trypsin inhibitor and chickpea, snowdrop and peanut lectins as compared to 90% pupation/adult emergence on untreated control diet. Soybean trypsin inhibitor, and lectins from snowdrop, peanut, and chickpea can be considered for deployment through transgenic plants for the management of H. armigera.

Item Type: Article
Divisions: UNSPECIFIED
CRP: UNSPECIFIED
Subjects: Others > Agriculture-Farming, Production, Technology, Economics
Depositing User: Library ICRISAT
Date Deposited: 11 Sep 2011 06:51
Last Modified: 21 Sep 2011 03:34
URI: http://oar.icrisat.org/id/eprint/1176
Official URL: http://www.wdc-jp.biz/pdf_store/jspcmb/pdf/pb22_1/...
Projects: UNSPECIFIED
Funders: Directorate General, International Corporation, Belgium
Acknowledgement: The authors are thankful to Mr. Narayan Chandra and Mr. V. V. Rao for their help in conducting the experiments, and Dr. O. P. Rupela for reviewing the manuscript. This research was funded by Directorate General, International Corporation (DGIC), Belgium.
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