Global ETD Search

1	The ecology of Pythium : Propagule survival and retrieval in natural and artificial systems Hardman, J. M. January 1985 (has links) No description available. 577 Fungal ecology
2	Sapstain and mould control of freshly felled timber Williams, G. R. January 1987 (has links) No description available. 577 Fungal ecology on timber
3	Microbiological aspects of stored timbers from the Mary Rose and the decay of wood by marine fungi Mouzouras, R. January 1987 (has links) No description available. 577 Fungal ecology and wood decay
4	Ecological and molecular studies of fungal communities associated with roots of <i>Salix spp.</i> grown under high density, short rotation intensive culture Corredor, Aura Helena 22 February 2011 In Canada, willow (Salix spp.) short rotation intensive cultures (SRIC) have been established to investigate their potential to produce biomass for bioenergy. Since root-associated fungal communities are involved in plant nutrition and disease susceptibility, it is relevant to understand their interactions with willows and their role on the sustainability of SRIC. In this project traditional methods together with molecular techniques were used to: i) assess the diversity of fungal communities in roots of willows and their relationship with major characteristics of SRIC ii) evaluate the effects on plant development of potentially beneficial and pathogenic fungi, and iii) identify arbuscular mycorrhizal fungal (AMF) species and their interaction with promising Salix clones. Potentially pathogenic fungi were more dominant in diseased and recently planted cuttings than in healthy older ones. This suggested the occurrence of a positive shift prompted by the establishment of the cuttings on the site. Gibberella/Fusarium sp. and Neonectria sp. were the most dominant taxa particularly in diseased plants. Under greenhouse conditions the inoculation with potentially beneficial and potentially pathogenic fungi induced significant differences in root biomass but not in overall aerial biomass production. PCR-denaturing gradient gel electrophoresis was successfully standardized and used to identify arbuscular mycorrhizal fungal species associated with different clones. The results indicated a degree of specificity between AMF species and plant genotype. Root-associated fungal communities appear to be useful to monitor the impacts of SRIC on soil ecology and their study may enlighten effective ways to increase the productivity of these biomass systems. Biomass plantations Salix Willow Fungal ecology
5	Ecological and molecular studies of fungal communities associated with roots of <i>Salix spp.</i> grown under high density, short rotation intensive culture Corredor, Aura Helena 22 February 2011 (has links) In Canada, willow (Salix spp.) short rotation intensive cultures (SRIC) have been established to investigate their potential to produce biomass for bioenergy. Since root-associated fungal communities are involved in plant nutrition and disease susceptibility, it is relevant to understand their interactions with willows and their role on the sustainability of SRIC. In this project traditional methods together with molecular techniques were used to: i) assess the diversity of fungal communities in roots of willows and their relationship with major characteristics of SRIC ii) evaluate the effects on plant development of potentially beneficial and pathogenic fungi, and iii) identify arbuscular mycorrhizal fungal (AMF) species and their interaction with promising Salix clones. Potentially pathogenic fungi were more dominant in diseased and recently planted cuttings than in healthy older ones. This suggested the occurrence of a positive shift prompted by the establishment of the cuttings on the site. Gibberella/Fusarium sp. and Neonectria sp. were the most dominant taxa particularly in diseased plants. Under greenhouse conditions the inoculation with potentially beneficial and potentially pathogenic fungi induced significant differences in root biomass but not in overall aerial biomass production. PCR-denaturing gradient gel electrophoresis was successfully standardized and used to identify arbuscular mycorrhizal fungal species associated with different clones. The results indicated a degree of specificity between AMF species and plant genotype. Root-associated fungal communities appear to be useful to monitor the impacts of SRIC on soil ecology and their study may enlighten effective ways to increase the productivity of these biomass systems. Biomass plantations Salix Willow Fungal ecology
6	An Examination of the Plant and Fungal Communities on Green Roofs and Their Ability to Influence Ecosystem Services Droz, Anna Gabriella 08 April 2022 (has links) No description available. Ecology Microbiology Green roofs habitat analogs ecosystem services urban ecology fungal ecology plant diversity
7	Fungal pigmentation responses to microclimatic variables in isolated forest patches in Northern Sweden / Svampar i färg: Hur mikroklimat påverkar pigmentering i fragmenterade skogssamhällen Soler Kinnerbäck, Karl January 2023 (has links) Investigating functional traits is an important tool for understanding fungal communities, yet ecological functions of fungal pigmentation remain poorly investigated. Recent studies support the thermal-melanism hypothesis for fungal color lightness in relation to macroclimate, but it remains unclear if microclimate also affects fungal pigmentation. In this study I use fruit bodies of wood-living polypores to further investigate this subject. While previous studies have used database-derived color lightness from photos often taken under unknown and non-standardized conditions, here I extract all color values from standardized photos taken in situ. In contrast to previous studies that have only examined fungal color lightness, I also studied the other components of the CIE Lab* color space, which may be related to e.g. protection, thermoregulation or signaling. I investigated community-level fungal pigmentation of pore surfaces and caps of polypores in fragmented forest patches in northern Sweden, in relation to microclimate proxies, deadwood availability and surrounding landscape structure. Two types of multiple linear regression models were used, one for community weighted means (CWM) and one for the coefficient of variance (CV) of patch level pigmentation. While no support was found for the thermal-melanism hypothesis in this study, saturation in the yellow spectrum was positively related to canopy cover and forest patch size. Variance in lightness of pore surfaces and in saturation in the red spectrum of caps was also positively related to diversity of decay stages and forest patch size respectively. These results indicate previously unknown relationships between fungal pigmentation and environment which warrant further research. fungal ecology mycology functional traits communities pigmentation CIELAB lightness microclimate polypores Ecology Ekologi
8	Celulolytické houby a jejich diverzita na rostlinném opadu / Cellulolytic fungi and their diversity on plant litter Gálová, Diana January 2014 (has links) Litter decomposition requires the presence of corresponding degradative enzymes, produced mainly by fungi. Forest soils show considerable spatial heterogeneity of distribution of these enzymes at diferent scales. Moreover, enzyme pruduction varies during the year, usually accompanied by the change in fungal community composition. In this work I examined if this spatial heterogeneity can be seen even at a scale of an individual leaf and whether the fungal community differs among enzyme activity hotspots and inactive parts of the leaves. Another goal was isolation of celulytic fungi from cellulose litterbags incubated on forest floor using particle filtration and dilution-to-extinction method. In a broadleaved forest dominated by oak leaves at different stages of decay were collected: senescent leaves on twigs, and leaves after 2, 10 and 22 months of decomposition. Ten leaves per season were taken for analysis of cellobiohydrolase activity over the leaf surface. Leaves were attachmed onto melted agarose plate and leaf surface was covered with low melting point agarose containing fluorescently labelled substrate. For each leaf a map of enzyme activity was created and area with the high and low enzyme activity was identified. From both sites a square of approx. 1 cm2 was cut out, DNA was extracted and fungal...
9	Computational, Evolutionary and Functional Genetic Characterization of Fungal Gene Clusters Adapted to Degrade Plant Defense Chemicals Gluck Thaler, Emile 04 September 2019 (has links) No description available. Plant Pathology metabolic gene cluster genome evolution genome architecture resistance plant-fungal interactions horizontal gene transfer fungal ecology
10	FUNGI AND `FUNGAL-LIKE’ ORGANISMS ASSOCIATED WITH ROOT SYSTEMS OF CUCURBITA MAXIMA AND THE SURROUNDING RHIZOSPHERE Hulse, Jonathan Daniel 04 August 2016 (has links) No description available. Botany Ecology Microbiology Organismal Biology Plant Pathology Plant Biology Sustainability Agriculture Fungi Microscopy Slime Molds Sustainable Agriculture Microbial Ecology Cucurbita maxima Cucurbitaceae Microbiology Plant Pathology Botany Biology Plant Science Fungal Ecology Mycorrhizae Roots Rhizosphere Photography

Search results