Search for dissertations about: "cambium"
Showing result 6 - 10 of 15 swedish dissertations containing the word cambium.
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6. Ethylene and Auxin in the Control of Wood Formation
Abstract : This thesis considers aspects of the regulation of growth rate and fibre properties in forest trees. These properties are both genetically determined and influenced by environmental stimuli. Induction of reaction wood is an environmentally induced process involving changes in growth rate and fibre properties that can be readily studied. READ MORE
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7. The effect of stress on plant vascular development and regeneration
Abstract : Plants are susceptible to stress due to their lifestyle and as such have evolved multiple adaptive strategies to ensure survival. One of the most remarkable abilities in plants is their competence to regenerate tissues. Particularly, any damage to vascular tissues is healed quickly to continue survival. READ MORE
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8. Bark lesions and sensitivity to frost in beech and Norway spruce
Abstract : Strong temperature fluctuations and pathogen attacks can cause bark lesions, visible signs of wounds in the phloem and cambium. Pathogenic insects and fungi are able to invade lesions that have not healed, further increasing the damage. READ MORE
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9. Dieback of Fraxinus excelsior in the Baltic Sea Region : associated fungi, their pathogenicity and implications for silviculture
Abstract : This thesis is comprised of three main studies: (1) the wood-inhabiting fungi found in declining European ash (Fraxinus excelsior L.) and their pathogenicity; (2) the relationship between F. excelsior phenology, site density and the susceptibility to the dieback; and (3) the potential of natural regeneration of dieback affected ash stands. READ MORE
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10. A study of the molecular pathways of wood formation using peptide mass spectrometry
Abstract : Wood consists essentially of secondary plant cell walls, composed of a cellulose and hemicellulose network impregnated with lignin. It is formed via the development of derivatives of a thin layer of cells (the vascular cambium) into xylem cells through cell division, expansion, secondary wall formation, lignification and, finally, programmed cell death. READ MORE