Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 10 of 10 for “"Plant-insect interaction"”.
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Functional Characterization and Evolutionary Analysis of Lepidopteran Cytochrome P450 Genes Involved in Plant -Insect Interaction
… to overcome the chemical defense systems of plants. Understanding the driving force behind the evolution of these systems that is promoted by gene duplication will help us elucidate the mechanisms underlying the reciprocal selection between plants and their herbivores and provide useful …
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The biological control of the weed Acacia longifolia by the gall wasp Trichilogaster acaciaelongfoliae: a study of a plant-insect interaction
… (1980a) The biological control of weeds using insects is a young science. The first intentional use of an insect to control a weed was in 1863 in India where the cochineal insect, Dactylopius ceylonicus (Green), was dispersed to control Opuntia vulgaris Miller some 68 years after the accidental …
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Impacts of the non-native aquatic plant water chestnut, Trapa natans, on inland freshwater nitrogen and oxygen dynamics, and host-specificity testing of the biological control insect, Galerucella birmanica
… chestnut, Trapa natans, is a non-native aquatic plant with floating rosettes of leaves that has established and continues to spread in northeastern North America. Growing in calm freshwater environments, T. natans can grow densely on water surfaces, transforming open waters into thick floating …
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Diverse functions of the two segmentally duplicated 9-lipoxygenases ZmLOX4 and ZmLOX5 of maize
Plant lipoxygenases (LOX) are non-heme iron containing dioxygenases that catalyze the hydroperoxidation of polyunsaturated fatty acids resulting in the synthesis of a large number of functionally diverse oxylipins. Although the physiological functions of jasmonate-producing 13-LOXs in dicots have …
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The investigation of kairomones and photosensitizers affecting Liriomyza bryoniae (Diptera, Agromyzidae) /
… One of the alternatives for traditional insecticides might be environmentally friendly, non-toxic photoinsecticides (photosensitizers). Knowing that tomato leafminers locate and recognize the suitable host-plants by plant-emitted volatiles, such plant-origin compounds (kairomones) could …
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Predicting Insect Herbivore Distribution Using Climatic and Biotic Variables
… species distribution in nature. The abundance of insect herbivores can vary greatly spatially and temporally. These variations can be explained by abiotic variables such as precipitation, they can also be explained by biotic variables such as nutrient availability. Here I present two field …
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Investigating Causal Relationships between Global Change and Insect Interaction Networks: Insights into Dietary Specialization, Interaction Diversity, and Disturbances
… between global change and diversity of insect interaction networks through quantifying effects of biotic and abiotic gradients on dietary specialization, interaction diversity, and related attributes of arthropod communities. My focus on how specialization varies across gradients and is …
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Impacts of climate change on herbivore induced plant signaling and defenses
… phytochemistry which in turn influences the interactions between plants and insects. To examine the effect of elevated atmospheric CO2 and O3 concentrations on plant-insect interaction, I measured changes in transcription using microarray analysis of field-grown soybean (Glycine max). I found …
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A Comparative Study of Medicago truncatula Transcriptomes as They Relate to Saponin Defenses Against Insect Pests
<p>Triterpene saponins are a class of defensive plant-derived compounds, which have a</p> <p>variety of functions including antimicrobial, insecticidal, and nematicidal activities. This</p> <p>research assessed the performance of the beet armyworm, Spodoptera exigua, following ad</p> <p>libero …
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Identifikation und Regulation einer durch Insektenfraß induzierbaren Geranyllinalool-Synthase in Arabidopsis thaliana
Von Pflanzen emittierte volatile Sekundärmetabolite spielen eine wichtige Rolle in Pflanze-Pflanze, Pflanze-Pilz und Pflanze-Insekt Kommunikation. Die meisten Pflanzen emittieren nach Befall mit Herbivoren das volatile Terpen (E,E)-4,8,12-Trimethyltrideca-1,3,7,11-Tetraen (TMTT). In dieser Arbeit …