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Molecular evolution of three morphologically similar families in the Xylariomycetidae (Apiosporaceae, Clypeosphaeriaceae, Hyponectriaceae)Bahl, Justin. January 2006 (has links)
Thesis (Ph. D.)--University of Hong Kong, 2007. / Title proper from title frame. Also available in printed format.
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Phylogeny of freshwater ascomycetes /Ranghoo, Vijayanti Mala. January 1998 (has links)
Thesis (Ph. D.)--University of Hong Kong, 1999. / Includes bibliographical references.
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Studies on two phytopathogenic pyrenomycetes, with observations on host-parasite relationsMason, David Lamont, January 1970 (has links)
Thesis (Ph. D.)--University of Wisconsin--Madison, 1970. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.
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Fungal diversity from freshwater & riparian habitats and phylogeneticsof the SordarialesCai, Lei, 蔡磊 January 2006 (has links)
published_or_final_version / abstract / Ecology and Biodiversity / Doctoral / Doctor of Philosophy
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Comparative and functional genome analysis of fungi for development of the protein production host Trichoderma reesei /Arvas, Mikko. January 1900 (has links) (PDF)
Thesis (doctoral)--University of Helsinki, 2007. / Includes bibliographical references. Also available on the World Wide Web.
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Tropical freshwater fungi : their taxonomy and ecologySivichai, Somsak January 1999 (has links)
No description available.
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Marine-occurring yeasts of the Avalon Peninsula, Newfoundland, their identification and vertical and seasonal distribution /Swyers, Barbara Ann. January 1975 (has links)
Thesis (M.Sc.) -- Memorial University of Newfoundland. 1976. / Typescript. Bibliography : leaves 137-148. Also available online.
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Identification of Erythromycin A in cultures of Streptomyces griseoplanus A mass spectral study of antibacterial macrolides ; Isolation and partial characterization of three new metabolites from Aspergillus clavatus ; Partial structures of Oligomycins A and B /Thompson, Richard Michael, January 1971 (has links)
Thesis (Ph. D.)--University of Wisconsin--Madison, 1971. / Typescript. Vita. Description based on print version record. Includes bibliographical references.
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Biodegradation of methyl tert-butyl ether (MTBE) and its breakdown products by propane and iso-pentane grown Mycobacterium vaccae and Graphium sp. : cometabolism, inhibition, kinetics, and modelingMart��nez-Prado, Maria Adriana 30 April 2002 (has links)
Mycobacterium vaccae JOB5 and Graphium sp. were studied to
evaluate their ability to cometabolize methyl tert-butyl ether (MTBE) and its
metabolites after growth on two different alkanes, propane and iso-pentane.
Both cultures were capable of cometabolizing MTBE and the metabolites,
tert-butyl formate (TBF) and tert-butyl alcohol (TBA). MTBE, TBF, and TBA
did not support growth of either microbe. Higher degradation rates were
obtained in the bacterial system when the cultures were grown on iso-pentane.
Nonlinear least squares regression and direct linear plot methods
were used to estimate kinetic coefficients and provided comparable results. The enzymes from Mycobacterium vaccae JOB5 and Graphium sp. that promote the cometabolism of MTBE and its metabolites exhibited
similar kinetics and substrate inhibition. The presence of the substrate
decreased the degradation rate of MTBE and TBA suggesting competitive
inhibition and preference for the substrate. Blockage experiment with
acetylene suggested the presence of an alkane monooxygenase for the
metabolism of MTBE and TBA, and a hydrolytic enzyme for the degradation
of TBF. The presence of a hydrolase enzyme was supported by the fact
that TBF was degraded to TBA under either aerobic or anaerobic conditions
and was not inhibited by the presence of acetylene, propane, or isopentane.
Measured rates of abiotic hydrolysis of TBF were significantly
less than biodegradation rates.
Acetylene acted as a reversible inhibitor for both cultures when
tested in the presence of the growth media and as an inactivator when
tested in the presence of a phosphate solution for the bacterial system.
Growth-batch reactor experiments were conducted to compare the
degradation of iso-pentane and MTBE with the predicted degradation rates
based upon kinetic constants determined from single and dual-compound
experiments. Experimental data was modeled with Monod kinetics and
STELLA�� software. Reasonable predictions of reactor performance were
achieved when Monod maximum utilization rates were increased compared
to single and dual-compound experiments. / Graduation date: 2002
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Phylogeny, cospeciation, and host switching in the evolution of the ascomycete genus Rhabdocline on Pseudotsuga and Larix (Pinaceae)Gernandt, David S. 07 May 1998 (has links)
The relative role of cospeciation and host switching in the phylogenetic history of
ascomycete foliar symbionts is addressed in the orders Leotiales and Rhytismatales, fungi
associated predominantly with Pinaceae (Coniferales). Emphasis is placed on comparing
the evolution of the sister genera Pseudotsuga and Larix (Pinaceae) with that of the
pathogenic and endophytic fungi in the genus Rhabdocline. Pinaceae evolved during the
Mesozoic and divergence of all extant genera and several infrageneric lineages (esp. in
Pinus) occurred prior to the Tertiary, with subsequent species radiations following
climatic changes of the Eocene. The youngest generic pair to evolve from Pinaceae, Larix
and Pseudotsuga, diverged near the Cretaceous-Tertiary boundary in East Asia or western
North America. Rhabdocline is comprised of seven species and subspecies, six known
from two species of Pseudotsuga and one, the asexual species Meria laricis, from three
species of Larix. Evidence from host distributions and from nuclear ribosomal DNA
suggests that Rhabdocline speciated in western North America and has been involved in
several host switches. The ancestor of Meria laricis appears to have switched from P.
menziesii to its current western North American hosts, L. occidentalis, L. lyallii, and very
recently may have extended its host range to the European species, L. decidua. The
occurrence of two lineages of R. weirii ssp. weirii on both North American species of
Pseudotsuga is also probably the result of a recent host switch. Evidence of hostmediated
divergence is seen in R. parkeri, which has different internal transcribed spacer
types in the geographically isolated coastal and interior forms of P. menziesii. The wide
host ranges of fungal genera closely related to Rhabdocline indicates that host switching is
a prevalent pattern in the evolution of foliar symbionts in Leotiales and Rhytismatales.
The prevalence of host switching in this group relative to other endosymbiotic organisms
can probably be attributed to differences in dispersal mechanisms. Spores of foliar fungi
are dispersed horizontally by wind and rain, rather than vertically from parent to offspring.
Over evolutionary time, this provides more opportunities to shift to new hosts, particularly
when the hosts are closely related and have overlapping distributions. / Graduation date: 1998
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