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- 1Alonso Zarza, Ana M.
- 1Bockstette, Simon W
- 1Cahill, J.F.
- 1Crowder, A.A.
- 1Currah, R. S.
- 1Jones, Brian
- 4Graduate Studies and Research, Faculty of
- 4Graduate Studies and Research, Faculty of/Theses and Dissertations
- 3Biological Sciences, Department of
- 3Biological Sciences, Department of/Journal Articles (Biological Sciences)
- 1Helmholtz-Alberta Initiative
- 1Helmholtz-Alberta Initiative/Journal Articles & Research Abstracts (Helmholtz-Alberta Initiative)
We examined whether the intense root competition in a rough fescue grassland plant community in central Alberta, Canada, was important in structuring plant species diversity or community composition. We measured competition intensity across gradients of species richness, evenness, and community...
Transfer of live aspen roots as a reclamation technique - Effects of soil depth, root diameter and fine root growth on root suckering abilityDownload
A transfer of live trembling aspen (Populus tremuloides Michx.) roots including the surrounding forest floor was conducted to examine aspen’s ability of vegetative regeneration to establish a boreal forest on a reclamation site. Forest floor was salvaged at two depths (15 cm and 40 cm) from a...
Transcriptome and Proteome Based Survey to Identify Aluminum-Responsive Genes in Roots of Arabidopsis ThalianaDownload
Aluminum (Al)stress is a major limitation to crop productivity on acidic soils. To help understand the cellular mechanisms underlying the toxicity and resistance of plants to Al, this thesis involved a large-scale, transcriptomic and proteomic analysis of roots of Arabidopsis thaliana and reports...
Roots in reconstructed soils - how land reclamation practices affect the development of tree root systemsDownload
Tree root systems are incredibly complex organs that fulfill several vital functions, the main ones being anchorage and uptake of water and mineral elements. They perform these functions in a highly complex and challenging soil environment with heterogeneously distributed soil resources, physical...
Formation and Morphology of an Iron Plaque on the Roots of Typha latifolia L. Grown in Solution Culture.Download
Roots of Typha latifolia L. exposed to Fe2+ under reduced conditions in solution culture developed visible coatings (plaques) of an oxidized Fe compound that extended as much as 15-17 ,um into the rhizosphere. Iron concentrations were significantly less and discoloration was not apparent on the...
Abstract: Epulorhiza inquilina sp. nov. is described from the mycorrhizas of mature plants of Platanthera clavellata, P. cristata and P. integrilabia, coexisting terrestrial orchids native to bogs in the southern Appalachians. The new taxon was isolated consistently and exclusively from these...
Desarrollo de calcretas en cavidades cársticas y/o de raíces: Las calcretes Cuaternarias de la Isla Gran Cayman (Calcrete development in root/karstic cavities: Quaternary calcretes from Grand Cayman)Download
The ruggest karst terrain that is developed on the dolostones of the Miocene Caayman Formation on Grand Cayman includes numerous large cavities that formed through the activity of tree roots. The surfaces of those cavities are coated with laminated calcrete crusts that are up to 8 cm thick. These...
Competition in Arabidopsis thaliana (L.) Heynh., behaviour of Mimosa pudica L. and a new method to characterize roots demonstrated with Helianthus annuus L..Download
In this dissertation, I address 5 problems in the discipline of plant ecology: two problems in plant competition, two problems in plant behaviour and one problem in the phenotyping of plant roots. First, we directly test Darwin’s competition-relatedness hypothesis with a pairwise...