نتایج جستجو برای: mythimna congrua
تعداد نتایج: 219 فیلتر نتایج به سال:
At least 7 species of Noctuid moths have been reared from caterpillars collected beneath trash in cane fields, and some at least feed at night on leaves of young ratooning sugarcane, the chief offender being Mythimna phaea Hamps. Feeding appeared to be initiated by onset of darkness, but a reduction in numbers feeding occurred before dawn. Natural enemies included 6 Tachinid flies, an Ichneumon...
By structural modification of piperine, some piperine-based phenylsulfonylhydrazone derivatives exhibited an unprecedented and potent narcotic activity against the oriental armyworm, Mythimna separata (Walker). The ND50 values of compounds 6c and 6e against the third-instar larvae of M. separata, which were more potent than those of wilfortrine and wilforgine, were 0.0074 μmol (after 3.5 h), an...
The intestinal bacteria community structure and diversity of the Oriental armyworm, Mythimna separata (Walker) (Lepidoptera: Noctuidae), was studied by analysis of a 16S rDNA clone library, denaturing gradient gel electrophoresis,and culture-dependent techniques. The 16S rDNA clone library revealed a bacterial community diversity comprising Cyanobacteria, Firmicutes, Actinobacteria, Gracilicute...
A new Densonucleosis virus was isolated from the maize worm, Mythimna(= Leucania) loreyi Dup.,) in Egypt. This Virus may play an important role, as a regulating factor of pest populations. The virushas icosahedral non-enveloped particles of 25 nm in diameter. The Virionsof Mythinzno loreyi Densovirus (MCDNV) contained 4 structural proteins with molecular weights of 41 000, . 53000,63000 and 910...
E. I. Sharapov,1 C. L. Morris,2,* M. Makela,2 A. Saunders,2 Evan R. Adamek,3 Y. Bagdasarova,2 L. J. Broussard,2 C. B. Cude-Woods,3 Deion E. Fellers,2 Peter Geltenbort,4 S. I. Hasan,5 K. P. Hickerson,6 G. Hogan,2 A. T. Holley,3 Chen-Yu Liu,3 M. P. Mendenhall,6 J. Ortiz,2 R. W. Pattie, Jr.,7 D. G. Phillips II,7 J. Ramsey,2 D. J. Salvat,3 S. J. Seestrom,2 E. Shaw,2 S. K. L. Sjue,2 W. E. Sondheim,2...
Five new derivatives (2-6) were semi-synthesized using compound 1, a dihydro-β-agarofuran sesquiterpene with C-2 ketone obtained from Parnassia wightiana, as the starting material by acylation, oxidation, reduction, esterification, and amination, respectively. Structures of 2-6 were confirmed by 1D- and 2D-NMR and HR-ESI-MS spectra. In addition, antifeedant activities of these compounds (1-6) w...
Celangulin V, an insecticidal compound isolated from the root bark of Chinese bittersweet, can affect the digestive system of insects. However, the mechanism of how Celangulin V induces a series of symptoms is still unknown. In this study, affinity chromatography was conducted through coupling of Celangulin V-6-aminoacetic acid ester to the CNBr-activated Sepharose 4B. SDS-PAGE was used to anal...
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