Vol. 7, Issue 4 (2019)
Antimetabolic effect on Spodoptera litura due to acute feeding of Adenanthera pavonina proteinase inhibitor
Author(s): S Velmani, M Shanthi, C Chinniah and S Vellaikumar
Abstract: Antimetabolic effect of purified proteinase inhibitor (F30-60) isolated from Adenanthera pavonina (ApPI F30-60) was evaluated on Spodoptera litura larva, by feeding five days old larva on the ApPI F30-60contaminated diet at 0.25, 0.50 and 1.00% for acute period (5 days) and later fed with untreated diet. The parameters of growth and development of S. litura were closely monitored throughout its life period. The results indicated that the ApPI 1.0% had significant influence on the reduction of S. litura larval weight(41.58%) pupal and adult weight (38.42 and 44.42%, respectively), prolonged the larval and pupal developmental period by 7.2 days and 3.0 days, respectively reduced the adult life span by 4.5 days. Only 60 per cent of the treated larva were pupated, 30 per cent of them were malformed as pupal-adult intermediates. Hence only 30 per cent were emerged as adult but they did not lay eggs. Acute feeding of ApPI 1% significantly interfered in the growth and development of S. litura. Hence, it is concluded that purified A. pavonina proteinase inhibitor (ApPI) is a potential and promising inhibitor of both chymotrypsin and trypsin in S. litura, which can be effectively exploited as bio insecticidal tool against this notorious polyphagous pest on a range of field and horticultural crops.
Pages: 980-986 | 266 Views 49 Downloads
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How to cite this article:
S Velmani, M Shanthi, C Chinniah, S Vellaikumar. Antimetabolic effect on Spodoptera litura due to acute feeding of Adenanthera pavonina proteinase inhibitor. Int J Chem Stud 2019;7(4):980-986.
