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Genome-informed studies on Penicillium marneffei horizontal gene transfer survey and differential secretomics /Zhou, Chen, January 2008 (has links)
Thesis (M. Phil.)--University of Hong Kong, 2009. / Includes bibliographical references (leaves 111-131) Also available in print.
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Pathogenicity and environal studies on Verticillium hadromycosisLudbrook, Wallis Verco. January 1933 (has links)
Presented as Thesis (Ph. D.)--University of Wisconsin--Madison, 1932. / Caption title. Reprinted from Phytopathology, vol. XXIII, no. 2 (Feb. 1933). Includes bibliographical references (leaves 153-154).
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Studies on the nematode Aphelenchus avenae Bastian 1865Klink, Johannes Wilhelmus, January 1900 (has links)
Thesis (M.S.)--University of Wisconsin--Madison, 1965. / eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.
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Fungal hydrolases in the haemolymph of mycosed insects and their roles in pathogenesisXia, Yuxian January 2001 (has links)
No description available.
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Understanding the pathogenic fungus Penicillium marneffei: a computational genomics perspectiveCai, J., James., 蔡莖. January 2006 (has links)
published_or_final_version / abstract / Microbiology / Doctoral / Doctor of Philosophy
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Genome-informed studies on Penicillium marneffei: horizontal gene transfer survey and differentialsecretomicsZhou, Chen, 周辰 January 2008 (has links)
published_or_final_version / Microbiology / Master / Master of Philosophy
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Metabolism of cruciferous chemical defenses by plant pathogenic fungi2012 June 1900 (has links)
Plants produce complex mixtures of secondary metabolites to defend themselves from pathogens. Among these defenses are metabolites produced de novo, phytoalexins, and constitutive metabolites, phytoanticipins. As a counter-attack, pathogenic fungi are able to transform such plant defenses utilizing detoxifying enzymes. This thesis investigates the metabolism of two important cruciferous phytoalexins (brassinin (33) and camalexin (39)) by the phytopathogenic fungus Botrytis cinerea and the metabolism of cruciferous phytoanticipins (glucosinolates and derivatives) by three economically important fungi of crucifers Alternaria brassicicola, Rhizoctonia solani and Sclerotinia sclerotiorum to investigate their role in cruciferous defense. In the first part of this thesis, the transformations of brassinin (33) and camalexin (39) by B. cinerea were investigated. During these studies a number of new metabolites were isolated, their chemical structures were determined using spectroscopic techniques, and further confirmed by synthesis. Camalexin (39) was transformed via oxidative degradation and brassinin (33) was hydrolyzed to indoly-3-methanamine (49). The metabolic products did not show detectable antifungal activity against B. cinerea, which indicated that these transformations were detoxification processes. Camalexin (39) was found to be more antifungal than brassinin (33). In the second part of this thesis, the metabolism of glucobrassicin (86), 1-methoxyglucobrassicin (87), 4-methoxyglucobrassicin (90), phenylglucosinolate (65), and benzylglucosinolate (66), the corresponding desulfoglucosinolates and derivatives by three fungal pathogens (A. brassicicola, R. solani and S. sclerotiorum) was investigated and their antifungal activity against the same pathogens was tested. Aryl
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glucosinolates 65 and 66 were metabolized by A. brassicicola but not by R. solani or S. sclerotiorum, whereas indolylglucosinolates were not metabolized by any pathogen. Indolyl desulfoglucosinolates (159 and 233) were transformed by R. solani and S. sclerotiorum to the corresponding carboxylic acids and indolyl acetonitriles 40, 102, and 103 were also metabolized to the corresponding carboxylic acids by all pathogens. None of the glucosinolates or their desulfo derivatives showed antifungal activity, but some of their metabolites showed low to very high antifungal activities. Among these metabolites, diindolyl-3-methane (113) showed the highest antifungal activity, and benzyl isothiocyanate (170) showed higher inhibitory effect against R. solani and S. sclerotiorum, but did not inhibit the growth of A. brassicicola. The cell-free extracts of A. brassicicola, R. solani, and S. sclerotiorum were tested for myrosinase activity against several glucosinolates. The cell-free extracts of mycelia of A. brassicicola displayed higher myrosinase activity for sinigrin (131), phenyl and benzyl glucosinolates 65 and 66, but lower activities for glucobrassicin (86) and 1-methoxyglucobrassicin (87); no myrosinase activity was detected in mycelia of either R. solani or S. sclerotiorum.
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Characterization and application of MP1 homologues in penicillium marneffeiLau, Choi-yi, Candy., 劉彩怡. January 2009 (has links)
published_or_final_version / Microbiology / Doctoral / Doctor of Philosophy
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The use of cortisone-treated mice in the screening of soil for pathogenic fungiBusailah, Laila Taseen, 1933- January 1961 (has links)
No description available.
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Characterization and application of MP1 homologues in penicillium marneffeiLau, Choi-yi, Candy. January 2009 (has links)
Thesis (Ph. D.)--University of Hong Kong, 2009. / Includes bibliographical references (leaves 170-204). Also available in print.
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