Biotransformation of nerol by larvae of the common cutworm (Spodoptera litura) was investigated. The resulting major metabolites were (2Z,6E)-1-hydroxy-3,7-dimethyl-2,6-octadien-8-oic acid and 8-hydroxynerol, and the minor metabolites were 9-hydroxynerol and (2Z,6E)-1-hydroxy-3,7-dimethyl-2,6-octadien-8-al. (2Z,6E)-1-Hydroxy-3,7-dimethyl-2,6-octadien-8-oic acid is a novel compound. The results ...

Insecticidal crystal proteins of Bacillus thuringiensis bind to receptors in the midgut of susceptible insects leading to pore formation and death of the insect. The identity of the receptor is not clearly established. Recently a direct interaction between a cloned and heterologously expressed aminopeptidase (slapn) from Spodoptera litura and the Cry1C protein was demonstrated by immunofluoresc...

The aim of the study was to test the effect of three flavonoids on growth and survival of Helicoverpa armigera (Hüb) and Spodoptera litura (Fab.). A set of experiments were carried out with varying concentrations of three flavonoids namely chlorogenic acid, quercetin and rutin at 23±1oC on growth, development and mortality of larvae of pod borer Helicoverpa armigera and tobacco caterpillar Spod...

Eight chimeric insecticidal protein (IP) genes were constructed between the 130-kDa and 135-kDa IP genes of Bacillus thuringiensis subsp. aizawai, and expressed in Escherichia coli JM103 cells. The characterization of the produced chimeric IPs indicated that the variable region (VR1) in the amino-terminal half of the IPs is responsible for the insecticidal activity against larvae of Spodoptera ...

Castor, (Ricinus communis L.) is one of the most important commercial, non-edible oilseed crop. Tobacco caterpillar, Spodoptera litura (Noctuidae: Lepidoptera), a major defoliator castor. The biophysical factors in castor play role conferring resistance against S.litura. present study was conducted with an objective, to basis S. litura. Feeding preference larvae leaves IVHT-39 followed by Salem...

A partial sequence of QM homologue was isolated from a Spodoptera litura fatbody suppression subtractive hybridization library. The full-length Spodoptera litura QM (SpLQM) cDNA of 838 bp contains a 5' untranslated region (UTR) of 112 bp, a 3' UTR of 66 bp, and an open reading frame of 660 nucleotides coding for a 219 amino acid peptide with a molecular weight of 25.5 kDa. Analysis of SpLQM seq...

Abstrak. Hama ulat grayak (S. litura) merupakan salah satu hama yang menyebabkan daun berlubang tidak beraturan, sehingga mengganggu proses fotosintesis mengurangi produksi tanaman cabai perlu dilakukan penanganan hama. Tujuan dari penelitian untuk melihat perbandingan efektivitas B. thuringiensis dengan teknologi ozon dibangkitkan melalui reaktor Dielectric Barier Discharge Plasma dalam mengen...

Using biotransformation as a biocatalytic process has the advantage of being able to proceed under mild conditions and with high regio- and enantioselectivity. This study investigated the biotransformation of (-)-(1R,4S)-menthone (1) and (+)-(1S,4R)-menthone (2) by Spodoptera litura larvae. Compound 1 was converted to (-)-(1R,4S)-7-hydroxymenthone (1-1), (+)-(1R,3S,4S)-7-hydroxyneomenthol (1-2)...

Infectivity of polyhedra of Spodoptera litura multiple nucleopolyhedrovirus before and after passage through the gut of the predatory stink bug, Eocanthecona furcellata Wolff (Hemiptera: Pentatomidae) was compared through field bioassay studies. Three sets of E. furcellata were used for bioassays and these were allowed to feed on a single meal of five third instar Oriental leaf worm, Spodoptera...

This paper deals with 21 species of Hishimonus Ishihara and two species of Litura Knight from the Indian subcontinent. The following new species are described: Hishimonus acuminatus sp. nov. (India: Mizoram), H. distinctus sp. nov. (India: Karnataka, Kerala, Tamil Nadu. Sri Lanka), H. dwipae sp. nov. (Sri Lanka), H. longisetosus sp. nov. (India: Karnataka), H. spicans sp. nov. (India: Karnataka...