Please use this identifier to cite or link to this item: https://doi.org/10.1111/j.1744-7917.2009.00266.x
Title: Modes of action of fraxinellone against the tobacco budworm, Heliothis virescens
Authors: Liu, Z.L.
Ho, S.H. 
Goh, S.H. 
Keywords: Amylase
Detoxification enzyme
Digestive enzyme
Fraxinellone
Heliothis virescens
Protease
Issue Date: Apr-2009
Source: Liu, Z.L., Ho, S.H., Goh, S.H. (2009-04). Modes of action of fraxinellone against the tobacco budworm, Heliothis virescens. Insect Science 16 (2) : 147-155. ScholarBank@NUS Repository. https://doi.org/10.1111/j.1744-7917.2009.00266.x
Abstract: Fraxinellone significantly reduced the relative growth rate, food consumption rate as well as the efficiency of conversion of ingested food into biomass of Heliothis virescens when incorporated into artificial diets at concentrations of 4.31 × 10-5 mol/L and above. After being fed with fraxinellone-treated diets for 24 h, the larval midguts of H. virescens possess significantly lower activities of α-amylase and non-specific proteases and higher activities of cytochrome P450s. In vitro, the compound did not inhibit the activities of α-amylase and non-specific proteases extracted from the larval midguts. Clear evidence of post-ingestive toxicity of fraxinellone to midgut cells was observed under an electron microscope. The modes of action of the compound against insects were discussed. © 2009 Institute of Zoology, Chinese Academy of Sciences.
Source Title: Insect Science
URI: http://scholarbank.nus.edu.sg/handle/10635/94293
ISSN: 16729609
DOI: 10.1111/j.1744-7917.2009.00266.x
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