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 13 of 13 for “"lignification"”.
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Impact of lignification of corn stover fractions on cell wall degradation by rumen microorganisms and response to ammonia treatment
Changes in cell wall composition and in vitro degradation of corn stover fractions (leaf, upper stem and lower stem) with advancing maturity and in response to NH; treatment were determined, and possible inhibitory mechanisms of lignin were evaluated. With advancing maturity, IVDMD decreased …
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Characterization of lignin deposition in <i>Pinus taeda</i> L. cell suspension cultures
… develop a model system to study the process of lignification occurring during the early stages of cell wall formation and maturation. Chemical, biochemical and histochemical analyses of the <i>P. taeda</i> suspension cultures grown with 2,4-dichlorophenoxyacetic acid (2,4-D) as the growth …
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Strategies for reducing the mutagen content of chlorinated aqueous media
… of waters containing lignin derived materials, lignification in intact growing plants, and the effects of modified substrates on this process, were investigated. All modified substrates tested increased the uptake of a C¹⁴ labelled lignin precursor into the lignin containing fraction of a living …
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Chemical and physical changes associated with maturity of different plants and enhancement of nutritional value by chemical treatment of crop residues
… electron microscopy (SEM) showed increased lignification and decreased tissue digestion for leaf sheaths and stems, compared to leaf blades. Lignification was higher in millet leaf sheaths than barley leaf sheaths. Within berseem plant parts, petioles showed better digestion than leaflets …
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Discovery of New Protein-DNA and Protein-Protein Interactions Associated With Wood Development in Populus trichocarpa
… module linking cambial cell proliferation, lignification, and cell expansion during growth. Combined, these findings support a role for PtrDRIF1 in regulating aspects of wood formation that may contribute to altering biomass yield.
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Molecular interactions of plant cell wall polymers
… lignin synthesis mutants, which have altered lignification chemistry preventing the xylan-lignin cross-linking, were shown to share enzyme accessibility and lignin-xylan interaction phenotypes with the gux1 gux2 mutant. The presence of ester bonds between lignin and xylan was investigated and …
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Studies in the Alseuosmiaceae
… through the secondary and quaternary stages (lignification-suberisation of walls; accumulation of phenolic compounds) as found in a typical root endodermis. All species of Alseuosmia lack rays in the secondary wood, whereas memecylanthus and Periomphale have extremely tall …
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Studies on lignin biosynthesis and biodegradation
… that its uptake did not result in distortion of lignification in those tissues, both in amount and monomeric composition. Consequently, the difference spectra obtained by ¹³C NMR analyses of phenylalanine-treated plants confirmed and extended the results obtained with ferulic acid. Evidence for …
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Characterization of molecular functions of polyamines in fruit development and ripening in tomato (Solanum lycopersicum)
… processes, including seed germination, tissue lignification, organogenesis, flowering, pollination, embryogenesis, fruit development, ripening, abscission, senescence, and stress responses. To elucidate molecular roles of PAs in fruit development and ripening, I characterized transgenic tomato …
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Characterization of molecular functions of polyamines in fruit development and ripening in tomato (Solanum lycopersicum)
… processes, including seed germination, tissue lignification, organogenesis, flowering, pollination, embryogenesis, fruit development, ripening, abscission, senescence, and stress responses. To elucidate molecular roles of PAs in fruit development and ripening, I characterized transgenic tomato …
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Transport of oxygen in roots of rice (Oryza sativa L.) and of water in developing grape berries (Vitis vinifera L.)
… lamellae. In addition to suberization, early lignification of walls of densely packed sclerenchyma cells was found closer to root apex in stagnantly grown plants. Supporting these findings, biochemical analyses revealed that, when grown in stagnant solution, the amounts suberin and lignin in …
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Functional studies of lignin biosynthesis genes and putative flowering gene in Miscanthus x giganteus and studies on indolyl glucosinolate biosynthesis and translocation in Brassica oleracea
… leaves and apical stem nodal tissues. Cell wall lignification is associated with increasing tissue maturity in Miscanthus species. RNAi and antisense constructs harboring sequences of these genes were developed to generate Miscanthus transgenic plants with suppressed of lignin biosynthesis and …