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 6 of 6 for “"secondary chemicals"”.
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Distribution of chemistry and sexual fecundity in the lichenized-fungi, Xanthoparmelia cumberlandia and Xanthoparmelia coloradoensis on Boulder Mountain, Aquarius Plateau, UT
… at two elevations are explored: clustering of secondary chemicals and the resulting implications for taxonomic distinctions, the usefulness of thallus size as an indirect measure of sexual fecundity, and the frequency of sexual reproduction.</p> <p>First, we use clustering of 46 chemicals …
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Cyanogenesis and the feeding preference of Acraea horta (L.) (Lepidoptera : Acraeinae)
… medicinal properties (Le. contain similar chemicals) is at least 300 years old, while the concept probably dates back several thousand years (Stace, 1980). Indeed, a knowledge of the secondary chemicals produced by different plant species has played an important role since the early stages …
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THE INFLUENCE OF THE INVASIVE CHINESE TALLOW (TRIADICA SEBIFERA) LEAF LITTER ON AQUATIC CHEMISTRY AND MICROBIAL COMMUNITY COMPOSITION
… sterilization experiments suggest that unknown secondary chemicals, perhaps tannins and phenolic compounds, are the source of declining pH when Chinese tallow litter is present in water. Using high throughput 16s and 18s rRNA mass parallel gene sequencing, followed by Non-metric Multidimensional …
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Effects of Nutrients and Minerals on Growth and Detoxification in Phytophagous Insects
… altering susceptibility to host plant allelochemicals. In this study I examined the influence of antioxidant vitamins, minerals, and compounds that affect mineral bioavailability on performance and detoxification in phytophagous insects exposed to prooxidant secondary chemicals. In …
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The Interaction of Arvicoline Rodents and Sheep in Norwegian Alpine Rangeland
… herbivory with increased production of defensive chemicals, a clipping experiment was set up in the greenhouse. Only a few of the species tested responded to clipping and the direction and intensity of the response varied between species. It is not likely that sheep grazing will cause a widespread …
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Investigation of Chitosan-based Adsorbents for Water Treatment, Pollutant Detection, and Adsorption Mechanism
… flexibility, easy handling, and limited usage of secondary chemicals. The adverse health effect of these pollutants has stimulated researchers to develop new multifunctional materials for detection and adsorption in aquatic environments. Chitin is the second most abundant biopolymer in nature that …