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Evaluation of the Adenanthera pavonina seed proteinase inhibitor (ApTI) as a bioinsecticidal tool with potential for the control of Diatraea saccharalis

Paper ID Volume ID Publish Year Pages File Format Full-Text
34929 45060 2012 7 PDF Available
Title
Evaluation of the Adenanthera pavonina seed proteinase inhibitor (ApTI) as a bioinsecticidal tool with potential for the control of Diatraea saccharalis
Abstract

Diatraea saccharalis, is a major sugarcane pest, causing damage to the stalks of sugarcane plants. In this study, a trypsin inhibitor (ApTI) was purified from Adenanthera pavonina seeds and was tested for its insect growth regulatory effect. ApTI showed a dose-dependent effect on average larval weight and survival. 0.1% ApTI produced approximately 67% and 50% decreases in weight and survival larval, respectively. The results from dietary utilization experiments with D. saccharalis larvae showed a reduction in the efficiency of conversion of ingested food and digested food, and an increase in approximate digestibility and metabolic cost. The level of trypsin was significantly decreased (ca. 55%) in the midgut of larvae reared on a diet containing 0.05% ApTI and the trypsin activity in ApTI-fed larvae demonstrated sensitivity to ApTI. The action of ApTI on the development of D. saccharalis larvae shows that this protein may have great toxic potential.

► ApTI is homologous to Kunitz-type inhibitors. ► ApTI purification. ► Action mechanisms. ► ApTI presented a strong insecticide effect on the larval development of Diatraea saccharalis.

Keywords
Lepidoptera; Action mechanism; Nutritional indices; Toxicity
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Evaluation of the Adenanthera pavonina seed proteinase inhibitor (ApTI) as a bioinsecticidal tool with potential for the control of Diatraea saccharalis
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Publisher
Database: Elsevier - ScienceDirect
Journal: Process Biochemistry - Volume 47, Issue 2, February 2012, Pages 257–263
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us