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X. Ni ; S. Quisenberry | 2000The concentration of a hydroxamic acid, also known as DIMBOA (2,4-dihydroxy-7methoxy-1, 4-benzoxazin-3-one), in 6-d old wheat seedlings was examined using reverse-phase high performance liquid chromatography (HPLC). Wheat plant introduction (PI)[...]
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X. Ni ; S. Quisenberry | 1997Salivary sheath distribution of the Russian wheat aphid, Diuraphis noxia (Mordvilko), on 'Arapahoe' (susceptible) and 'Halt' (resistant) wheat, Triticum aestivum L., leaves were compared. D. noxia produced both single and multiple branched saliv[...]
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X. Ni ; S. Quisenberry | 1997Five genotypes of wheat, Triticum aestivum L. ('Arapahoe', 'Halt', PI 137739, PI 225245, and PI 262660), were compared for their antixenotic effects on the Russian wheat aphid, Diuraphis noxia (Mordvilko). Comparisons were made by host plant cho[...]
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X. Ni ; S. Quisenberry ; S. Pornkulwat ; J. Figarola ; S. Skoda ; J. Foster | 2000Four hydrolases and five oxido-reductases were examined using native stacking polyacrylamide gel electrophoresis. Homogenate of Russian wheat aphid, Diuraphis noxia (Mordvilko), bird cherry-oat aphid, Rhopalosiphum padi (L.), 'Arapahoe' (aphid-s[...]
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X. Ni ; S. Quisenberry ; J. Markwell ; T. Hengmoss ; L. Higley ; F. Baxendale ; G. Sarath ; R. Klucas | 2001Chlorophyll degradation is a complex phenomenon that often accompanies insect feeding damage to plants. Loss of chlorophyll can be initiated by several reactions, including oxidative bleaching, chlorophyllase activity, and Mg-dechelatase activit[...]
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X. Ni ; S. Quisenberry ; B. Siegfried ; K. Lee | 1998The effect of cereal leaf surface wax on Diuraphis nox-ia (Mordvilko), the Russian wheat aphid, probing behavior epicuticular wax from wheat (Triticum aestivum L.) c.v. 'Arapahoe' and 'Halt' was different from barley (Hordeum vulgare L.) c.v. 'M[...]
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X. Ni ; S. Quisenberry ; T. Hengmoss ; J. Markwell ; G. Sarath ; R. Klucas ; F. Baxendale | 2001The impact of the leaf-chlorosis-elicitiug Russian wheat aphid, Diuraphis noxia (Mordvilko), and the nonchlorosis-eliciting bird cherry-oat aphid, Rhopalosiphum padi (L.), feeding on D. noxia-susceptible and -resistant cereals was examined durin[...]
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F. Haile ; L. Higley ; X. Ni ; S. Quisenberry | 1999Plant tolerance to injury from insect herbivores has several advantages as a pest management approach. However, its use is limited because mechanisms conferring plant tolerance are not well understood. We hypothesize that plant physiological res[...]
