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    Browsing Research Articles (Microbiology) by Title

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    Now showing items 69-88 of 106

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        Lactobacillus equigenerosi strain Le1 invades equine epithelial cells 

        Botha, Marlie; Botes, Marelize; Loos, Ben; Smith, Carine; Dicks, Leon Milner Theodore, 1961- (American Society for Microbiology, 2012)
        Lactobacillus equigenerosi strain Le1, a natural inhabitant of the equine gastrointestinal tract, survived pH 3.0 and incubation in the presence of 1.5% (wt/vol) bile salts for at least 2 h. Strain Le1 showed 8% cell surface ...
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        Malic acid distribution and degradation in grape must during skin contact : the influence of recombinant malo-ethanolic wine yeast strains 

        Van Staden, J.; Volschenk, H.; Van Vuuren, H. J. J.; Viljoen-Bloom, M. (South African Society for Enology and Viticulture, 2005)
        Wine acidity plays an important role in determining wine quality and ensuring physiochemical and microbiological stability. In high-acid wines, the L-malic acid concentration is usually reduced through bacterial malolactic ...
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        Malic acid in wine : origin, function and metabolism during vinification 

        Volschenk, H.; Van Vuuren, H. J. J.; Viljoen-Bloom, M. (South African Society for Enology and Viticulture, 2006)
        The production of quality wines requires a judicious balance between the sugar, acid and flavour components of wine. L-Malic and tartaric acids are the most prominent organic acids in wine and play a crucial role in the ...
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        Market and product assessment of probiotic/prebiotic - containing functional foods and supplements manufactured in South Africa 

        Brink, M.; Senekal, M.; Dicks, L. M. T. (Health & Medical Publishing Group, 2005)
        Objectives. Probiotic and prebiotic products manufactured in South Africa were identified and health and content claims stated on the labels were evaluated according to available scientific evidence, the proposed South ...
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        Mathematicians aim to secure the next generation 

        Cherry, Michael (Academy of Science of South Africa, 2003)
        A new institute aspires to become a continental centre for mathematics teaching, starting with an advanced diploma course for graduates. It has the potential to address some of the existing problems in mathematics education ...
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        Microbes at surface-air interfaces : the metabolic harnessing of relative humidity, surface hygroscopicity, and oligotrophy for resilience 

        Stone, Wendy; Kroukamp, Otini; Korber, Darren R.; McKelvie, Jennifer; Wolfaardt, Gideon M. (Frontiers, 2016)
        The human environment is predominantly not aqueous, and microbes are ubiquitous at the surface-air interfaces with which we interact. Yet microbial studies at surface-air interfaces are largely survival-oriented, whilst ...
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        Microbial communities in the fynbos region of South Africa : what happens during woody alien plant invasions 

        Jacobs, Karin; Conradie, Tersia; Jacobs, Shayne (MDPI, 2020)
        The Cape Floristic Region (CFR) is globally known for its plant biodiversity, and its flora is commonly referred to as fynbos. At the same time, this area is under severe pressure from urbanization, agricultural expansion ...
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        Migration of bacteriocins across gastrointestinal epithelial and vascular endothelial cells, as determined using in vitro simulations 

        Dreyer, Leane; Smith, Carine; Deane, Shelly M.; Dicks, Leon Milner Theodore, 1961-; Van Staden, Anton D. (Nature Research (part of Springer Nature), 2019-08-07)
        Little is known about the migration of bacteriocins across human cells. In this study, we report on migration of three bacteriocins nisin, plantaricin 423 and bacST4SA across colonic adenocarcinoma (Caco-2) cells and human ...
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        Modeling the minimum enzymatic requirements for optimal cellulose conversion 

        Den Haan, R.; Van Zyl, J. M.; Harms, T. M.; Van Zyl, W. H. (IoP Publising, 2013-04)
        Hydrolysis of cellulose is achieved by the synergistic action of endoglucanases, exoglucanases and -glucosidases. Most cellulolytic microorganisms produce a varied array of these enzymes and the relative roles of the ...
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        Modification of the agar sausage of Ten Cate for bacteriological control 

        Horwitz, B. M. (Health & Medical Publishing Group, 1974)
        The manufacture and use of a disposable plastic syringe as a container for a column of solid culture medium, instead of a plastic sausage casing, is described. The method of sampling and its usefulness in the supervision ...
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        A modified reduced transport fluid for the preservation of Neisseria gonorrhoeae during transport 

        Finlayson, M. H.; Koralewski, F. F.; Kindermann, R. A. (Health & Medical Publishing Group, 1975)
        Reduced transport fluid (RTF) was modified by altering its pH and by the addition of a yeast dialysate. This reduced transport yeast containing fluid (RTYF) was shown to be superior to RTF in maintaining viability of ...
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        Molecular detection of acanthamoeba spp., naegleria fowleri and vermamoeba (hartmannella) vermiformis as vectors for legionella spp. in untreated and solar pasteurized harvested rainwater 

        Dobrowsky, Penelope H.; Khan, Sehaam; Cloete, Thomas E.; Khan, Wesaal (BioMed Central, 2016)
        Background: Legionella spp. employ multiple strategies to adapt to stressful environments including the proliferation in protective biofilms and the ability to form associations with free-living amoeba (FLA). The aim of ...
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        Molecular detection of airborne Emergomyces africanus, a thermally dimorphic fungal pathogen, in Cape Town, South Africa 

        Schwartz, Ilan S.; McLoud, Josh D.; Berman, Dilys; Botha, Alfred; Lerm, Barbra; Colebunders, Robert; Levetin, Estelle; Kenyon, Chris (Public Library of Science, 2018)
        Emergomyces africanus is a thermally dimorphic fungus that causes a systemic mycosis in immunocompromised persons in South Africa. Infection is presumed to follow inhalation of airborne propagules. We developed a quantitative ...
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        Molecular insights into probiotic mechanisms of action employed against intestinal pathogenic bacteria 

        Van Zyl, Winschau F.; Deane, Shelly M.; Dicks, Leon Milner Theodore, 1961- (Taylor and Francis, 2020)
        Gastrointestinal (GI) diseases, and in particular those caused by bacterial infections, are a major cause of morbidity and mortality worldwide. Treatment is becoming increasingly difficult due to the increase in number of ...
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        A note on the use of reduced transport fluid (RTF) for isolation of Neisseria gonorrhoeae 

        Finlayson, M. H.; Willey, K. F. D.; Brede H. D.; Wilson A. J. (Health & Medical Publishing Group, 1974)
        Swabs containing pus from urethral discharges obtained from 55 male patients attending venereal disease clinics were transported in Stuart's transport medium or RTF (reduced transport fluid) and then cultured on Thayer ...
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        The occurrence and infectivity of arbuscular mycorrhizal fungi in inoculated and uninoculated rhizosphere soils of two-year-old commercial grapevines 

        Meyer, A. H.; Botha, A.; Valentine, A. J.; Archer, E.; Louw, P. J. E. (South African Society for Enology and Viticulture, 2005)
        Arbuscular mycorrhizal (AM) fungal populations present in the rhizosphere of vine roots in the vineyards of a commercial farm in the Stellenbosch Region were investigated using microscopic analyses. AM root colonisation ...
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        Optimization of automated ribosomal intergenic spacer analysis for the estimation of microbial diversity in fynbos soil 

        Slabbert, Etienne; Van Heerden, Carel J.; Jacobs, Karin (Academy of Science of South Africa -- ASSAF, 2010-08)
        Automated ribosomal intergenic spacer analysis (ARISA) has become a commonly used molecular technique for the study of microbial populations in environmental samples. The reproducibility and accuracy of ARISA, with and ...
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        Optimized production of bacteriocin ST11BR, generated by Lactobacillus paracasei subsp. paracasei ST11BR isolated from traditional South African beer 

        Todorov, S. D.; Van Reenen, C. A.; Dicks, L. M. T. (Academy of Science for South Africa, 2005)
        Little is known about the production of antimicrobial peptides (bacteriocins) by lactic acid bacteria in traditional South African beer and their inhibition of food spoilage or pathogenic bacteria. In this paper, we report ...
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        Pharmaceutical and personal care products (PPCPs) as endocrine disrupting contaminants (EDCs) in South African surface waters 

        Archer, Edward; Wolfaardt, Gideon M.; Van Wyk, Johannes H. (South African Water Research Commission, 2017-10)
        Globally, water resources are under constant threat of being polluted by a diverse range of man-made chemicals, and South Africa is no exception. These contaminants can have detrimental effects on both human and wildlife ...
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        A phylogenetic revision of Penicillium sect. Exilicaulis, including nine new species from fynbos in South Africa 

        Visagie, Cobus M.; Seifert, Keith A.; Houbraken, Jos; Samson, Robert A.; Jacobs, Karin (International Mycological Association, 2016-06-01)
        A survey of the fynbos biome in South Africa resulted in the isolation of 61 Penicillium species from Protea repens infructescences, air, and soil samples. Fourteen of these belong to Penicillium sect. Exilicaulis and ...

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