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Dissertations / Theses on the topic 'Pathogenic bacteria'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Château, Maarten de. "Functional, structural and evolutionary studies on a family of bacterial surface proteins." Lund : Dept. of Cell and Molecular Biology, Lund University, 1996. http://catalog.hathitrust.org/api/volumes/oclc/38947242.html.

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2

Kearney, Theresa Elizabeth. "Survival of pathogenic bacteria in anaerobic digesters." Thesis, Queen's University Belfast, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.334706.

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3

Kim, Hyung Joo. "Electrochemical detection and enumeration of pathogenic bacteria." Thesis, King's College London (University of London), 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.244045.

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4

Salmon, Richard Michael. "Structural studies on proteins from pathogenic bacteria." Thesis, University of Sheffield, 2012. http://etheses.whiterose.ac.uk/3287/.

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5

Davids, Wagied. "Causes of Substitution Frequency Variation in Pathogenic Bacteria." Doctoral thesis, Uppsala : Acta Universitatis Upsaliensis : Univ.-bibl. [distributör], 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-4838.

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6

Lövkvist, Lena. "Receptor Interactions Between Pathogenic Bacteria and Host Cells." Doctoral thesis, Uppsala University, Department of Medical Biochemistry and Microbiology, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-7782.

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<p>This thesis focuses on host and pathogen specific interactions during invasive disease. We have investigated the role and impact of different virulence factors of <i>Neisseria gonorrhoeae, N. meningitidis</i> and <i>Streptococcus pyogenes</i> on host epithelial cells and <i>in vivo</i>. </p><p><i>N. gonorrhoeae</i> cause the sexually transmitted disease gonorrhoea and <i>N. meningitidis</i> is the most common cause of bacterial meningitis and may be leathal to the host within hours of infection. The neisserial type IV pili were shown to have an important impact on host cells for the induct

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7

Abd, Hadi. "Interaction between waterborne pathogenic bacteria and Acanthamoeba castellanii /." Stockholm, 2006. http://diss.kib.ki.se/2006/91-7140-569-0/.

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8

Lövkvist, Lena. "Receptor interactions between pathogenic bacteria and host cells /." Uppsala : Acta Universitatis Upsaliensis : Uppsala universitetsbibliotek [distributör], 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-7782.

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9

Chan, Anson Chi-Kit. "Iron transport in two pathogenic Gram-negative bacteria." Thesis, University of British Columbia, 2011. http://hdl.handle.net/2429/32406.

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Campylobacter jejuni and Escherichia coli strain F11 are two Gram-negative pathogens with a versatile armament of iron uptake systems to cope with the fluctuating host nutrient environment. Our current understanding of Gram-negative iron uptake systems focuses heavily on a prototypical scheme involving a TonB-dependent outer membrane receptor and an ABC transporter, with little knowledge on systems that do not fall neatly into this paradigm. The primary focus of this thesis is the characterization of three such atypical iron uptake proteins from C. jejuni (ChaN and P19) and pathogenic E. coli

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10

Hitchen, Paul Gareth. "Structural analysis of lipo-oligosaccharides from pathogenic bacteria." Thesis, Imperial College London, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.268463.

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11

Saunders, Jane Elizabeth. "Structure-function studies on EPSP from pathogenic bacteria." Thesis, Imperial College London, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.405133.

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12

Saramago, Ana Margarida Teixeira. "The Relevance of Ribonuclease III in Pathogenic Bacteria." Doctoral thesis, Universidade Nova de Lisboa. Instituto de Tecnologia Química e Biológica, 2013. http://hdl.handle.net/10362/12027.

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Dissertation presented to obtain the Ph.D degree in Biology.<br>Ribonucleases (RNases) are key factors in the control of all biological processes, since they modulate the stability of RNA transcripts, allowing rapid changes in gene expression. Some RNases are up-regulated under stress situations and are involved in virulence processes in pathogenic microorganisms. RNases also control the levels of regulatory RNAs, which play very important roles in cell physiology.(...)

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13

Arrojado, Cátia Susana Garrido Lobo. "Inactivation of fish pathogenic bacteria by cationic porphyrin." Master's thesis, Universidade de Aveiro, 2009. http://hdl.handle.net/10773/884.

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Mestrado em Microbiologia<br>A importância da aquacultura tem vindo a aumentar de modo a compensar a progressiva redução mundial de peixes em ambiente natural. No entanto, esta indústria sofre frequentemente de elevadas perdas financeiras resultantes do desenvolvimento de infecções nos peixes causadas por microrganismos patogénicos, incluindo bactérias resistentes a antibióticos. Isto gera a necessidade de criar estratégias de controlo de infecções microbianas nos peixes que sejam benéficas para o ambiente, de modo a controlar a tornar a indústria e produção de peixe em aquacultura mais susten

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14

Felts, Richard Levi. "Structural studies of acid phosphatases from pathogenic bacteria." Diss., Columbia, Mo. : University of Missouri-Columbia, 2007. http://hdl.handle.net/10355/4857.

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Thesis (Ph.D.)--University of Missouri-Columbia, 2007.<br>The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file (viewed on March 23, 2009) Vita. Includes bibliographical references.

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15

Habeeb, Fatema. "Bacteria-cytokines interactions : effect of normal bacterial flora of pathogenic bacteria on pro-inflammatory cytokines production in human blood." Thesis, University of Strathclyde, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.501921.

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16

Manning, Paul Alexander. "Bacterial cell surfaces and pathogensis : publications 1975-1998 /." Title page, contents and summary only, 1998. http://web4.library.adelaide.edu.au/theses/09SD/09sdm284.pdf.

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17

Bryant, Josephine Maria. "Evolutionary genomics of pathogenic mycobacteria." Thesis, University of Cambridge, 2015. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.708462.

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18

O'Hara, Heather Marie. "Comparison of the different spectra of some selected bacteria." Thesis, Georgia Institute of Technology, 2001. http://hdl.handle.net/1853/27161.

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19

Abulreesh, Hussein Hasan. "Waterfowl, faecal indicators, and pathogenic bacteria in amenity ponds." Thesis, University of Hull, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.421986.

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20

Misciattelli, Natalia. "Control of pathogenic bacteria in marine larval culture systems." Thesis, Bangor University, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.311387.

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21

Holmes, Ashleigh. "Characterising virulence factors from pathogenic bacteria using fluorescent reporters." Thesis, University of Glasgow, 2012. http://theses.gla.ac.uk/3317/.

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Protein translocation systems are invaluable to pathogenic bacteria, facilitating the display of virulence factors on their surface or their release into the extracellular environment. Some protein export systems are ubiquitous and essential to cell survival whereas others are horizontally acquired on prophages or pathogenicity islands (PAI), in many cases providing the bacterium with pathogenic advantages. For the majority of the known protein export systems, their structure, function and secreted substrates have been characterised, yet some proteins have been identified that are secreted via

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22

Twing, Katrina Irene. "Pathogenic Epsilonproteobacteria and fecal indicator bacteria in Delaware waterways." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 50 p, 2009. http://proquest.umi.com/pqdweb?did=1885607691&sid=5&Fmt=2&clientId=8331&RQT=309&VName=PQD.

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23

Reyna-Granados, Javier Rolando. "Control of Foodborne Pathogenic Bacteria Using Natural Plant Antimicrobials." Diss., The University of Arizona, 2012. http://hdl.handle.net/10150/228511.

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Foodborne pathogens are a threat to public health worldwide. Because many consumers prefer natural compounds to synthetic additives, research on safe plant-derived compounds with antimicrobial activity against foodborne pathogens is vital. The aim of this investigation was to evaluate the antimicrobial activities of plant essential oils (oregano, cinnamon, lemongrass), their active components (carvacrol, trans-cinnamaldehyde, citral) and plant-extracts such as green tea, apple skin extract, black and decaffeinated black tea, grapes seed and pomace extracts against foodborne bacteria. Salmonel

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24

Ferrara, Luana. "Structural and functional studies of porins from pathogenic bacteria." Thesis, University of St Andrews, 2018. http://hdl.handle.net/10023/15639.

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Multi-drug resistant bacteria have become a real threat to public health worldwide. Gram-negative bacteria, in particular, have shown high level of antibiotic resistance due to the presence of an additional membrane, known as outer-membrane (OM), that acts as an extra barrier. Most antibiotics enter the cells via a particular class of outer-membrane proteins (OMPs) known as porins. Porins are β-barrel channels that allow the passive diffusion of hydrophobic compounds. The porins are known to select against molecules on the basis of size and charge. When exposed to antibiotics, bacteria can mod

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25

Foo, Chuen-hing, and 符傳興. "Bacteremia due to Elizabethkingia and related species." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2014. http://hdl.handle.net/10722/208519.

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Elizabethkingia spp. is a gram-negative, non-fermenting rod bacterium that is frequently implicated in hospital outbreaks. Elizabethkingia has a high rate of resistance to antibiotics and a shortage of effective parenteral antibiotics usually occurs in intensive care units. Infection includes neonatal sepsis and meningitis. Recently, a new species of Elizabethkingia, which is closely related to E. meningoseptica ATCC 13253 and E. miricola GTC862, was reported as a human pathogen in Central Africa and named E. anophelis. Our investigation involved 27 Elizabethkingia clinical isolates, which wer

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26

Parry, R. W. H. "Xanthomonas infections of rice : The involvement of bacterial extracellular polysaccharide." Thesis, University of Leeds, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.354044.

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27

Hapeshi, Alexia. "Chromosomal and plasmid determinants of Rhodococcus equi virulence." Thesis, University of Edinburgh, 2014. http://hdl.handle.net/1842/17281.

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Rhodococcus equi is a soil-dwelling actinomycete with the ability to cause pyogranulomatous infections in different animal species and people. Young foals are particularly susceptible and develop a severe pulmonary illness known as rhodococcal pneumonia. The infection is endemic in many horse-breeding farms worldwide and poses a major challenge to the equine industry, as there is no commercial vaccine available. R. equi is a facultative intracellular pathogen. Intracellular survival in macrophages and hence virulence depends on the presence of large plasmids that carry a set of genes encoding

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28

Meyer, Hanna [Verfasser]. "Applying metabolomics to Gram-positive bacteria: Investigations on pathogenic and biotechnological relevant bacteria / Hanna Meyer." Greifswald : Universitätsbibliothek Greifswald, 2014. http://d-nb.info/1051066409/34.

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29

VieBrock, Lauren. "ORIENTIA TSUTSUGAMUSHI ANKYRIN-REPEAT PROTEIN FAMILY TARGETING OF THE HOST ENDOPLASMIC RETICULUM." VCU Scholars Compass, 2015. http://scholarscompass.vcu.edu/etd/4023.

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Abstract ORIENTIA TSUTSUGAMUSHI ANKYRIN REPEAT-PROTEIN FAMILY TARGETING OF THE HOST ENDOPLASMIC RETICULUM By Lauren VieBrock, B.S. A dissertation submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy at Virginia Commonwealth University Virginia Commonwealth University, 2015 Director: Jason A. Carlyon, Ph.D. Professor Microbiology and Immunology Scrub typhus is an understudied, potentially fatal febrile illness, which poses threat to one billion people annually in the Asia-Pacific region. The host-pathogen interactions that facilitate the intracellular surv

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30

Li, Huajing, and 李華菁. "Oral commensal/pathogenic bacteria-host cells crosstalk : immuno-inflammatory response, microenvironmental regulation and signaling mechanism." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2014. http://hdl.handle.net/10722/208543.

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31

Meaden, Sean McClarey. "The tri-trophic interaction of plants, pathogenic bacteria and bacteriophages." Thesis, University of Exeter, 2015. http://hdl.handle.net/10871/22133.

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The ecology and evolution of pathogens are key factors in predicting the severity and spread of disease, as well as treatment outcomes. However, the effects of multiple trophic levels that include host, microbial competitors and viruses are typically overlooked. In this thesis I develop our understanding of bacteria-phage coevolution, microbial dispersal and the role of the microbiome in disease. The results of these experiments have direct implications for phage therapy: the use of bacteriophages to treat bacterial infections. Firstly, I explore the risks of phage application in the environme

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32

Wang, Jiahui. "Modulation of phosphoinositide metabolism by intracellular pathogenic bacteria Listeria monocytogenes." Thesis, University of Manchester, 2012. https://www.research.manchester.ac.uk/portal/en/theses/modulation-of-phosphoinositide-metabolism-by-intracellular-pathogenic-bacteria-listeria-monocytogenes(1ba79d85-5369-4bc5-8d49-aea2ffc0a7ca).html.

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Listeria monocytogenes is a Gram-positive facultative intracellular bacterium with a wide ecological niche and causes a number of diseases in human and animals. It invades mammalian host cells and escapes from the vacuoles prior to replication in the host cell cytoplasm and infecting adjacent cells via actin-based mobility. Phosphoinositide (PIP) metabolism is essential to mammalian cells in signal transduction, actin remodelling, endosome dynamics and membrane trafficking. Modulation of host PIP metabolism by bacteria PIP phosphatases is important for pathogenicity and virulence of many human

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33

Jin, Terry David. "Fluorogenic 1,8-naphthalimide derivatives for the detection of pathogenic bacteria." Thesis, The University of Sydney, 2015. http://hdl.handle.net/2123/14156.

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Novel fluorogenic enzyme substrates were synthesized by the coupling of 6-hydrazinobenz[de]isoquinoline-1,3-diones with β-alanine for the detection of β-alanyl aminopeptidase-producing Pseudomonas aeruginosa. A secondary reaction was also utilized involving the condensation of the 6-hydrazinobenz[de]isoquinoline-1,3-diones with a range of aryl aldehydes to give the corresponding hydrazones as a means for obtaining more favourable fluorescence properties. The photophysical properties of the synthesized hydrazines and their hydrazide and hydrazone derivatives, were examined and they were also in

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34

Yeung, Shiu-yan, and 楊兆恩. "Update and evaluation of 16SpathDB, an automated comprehensive database for identification of medically important bacteria by 16S rRNA gene sequencing." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2013. http://hdl.handle.net/10722/193552.

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Identification of pathogens is one of the important duties of clinical microbiology laboratory. Traditionally, phenotypic tests are used to identify the bacteria. However, due to some limitations of the phenotypic tests, the bacteria may not be identified sometimes and cannot be identified promptly. 16S rRNA gene sequencing is a rapid and accurate method to achieve this target. It is especially useful for identify rare or slow growing bacteria. However, the interpretation of the 16S rRNA gene sequencing result is one of the challenging duties to laboratory technicians and microbiologists. Apar

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35

Han, Bin. "Regulation of the synthesis of extracellular protease and cellulase enzymes in Xanthomonas campestris." Thesis, Open University, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.316748.

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36

Griffin, Blakeley. "A Study of the Polymicrobial Inhibitory Interactions Between Alcaligenes faecalis and Staphylococcus aureus." Digital Commons @ East Tennessee State University, 2020. https://dc.etsu.edu/honors/579.

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Members of the Staphylococcus genus are found as a part of normal microflora in humans and can commonly be found on the skin or in the nasal cavity. However, these microorganisms can cause serious and life-threatening opportunistic infections when there is a break in the physical barrier of skin. These infections have become difficult to treat as resistant strains emerge, particularly Methicillin Resistant Staphylococcus aureus (MRSA). MRSA has become a commonly acquired nosocomial infection which is difficult to treat with conventional antibiotics of the blactam class. Even Vancomycin, a last

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37

Emmett, Warren Anthony. "Using oligonucleotide signatures to build a system for effective detection of pathogenic bacteria in metagenomic samples." Pretoria : [s.n.], 2009. http://upetd.up.ac.za/thesis/available/etd-08112009-151918.

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38

Gaviria, Cantín Tania Cristina. "Factores Gre de Salmonella enterica serovar Typhimurium, su papel en el control de la filosofía y patogenicidad." Doctoral thesis, Universitat de Barcelona, 2016. http://hdl.handle.net/10803/397788.

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El género Salmonella, está compuesto de bacterias Gram-negativas, no esporuladas, en forma de bacilo. Salmonella tiene importante relevancia a nivel de salud pública ya que es uno de los principales patógenos entéricos tanto en países desarrollados como en vías de desarrollo. En los casos de gastroenteritis notificados en España, Salmonella se posiciona en segundo lugar, después de Campylobacter. En este trabajo se utilizó como organismo modelo de estudio S. enterica serovar Typhimurium (S. Typhimurium), que en humanos causa salmonelosis, gastroenteritis caracterizada por diarrea inflamatoria,

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39

Smith, Hannah. "Wild Australian shorebirds as reservoirs of pathogenic bacteria and antimicrobial resistance." Thesis, Federation University Australia, 2020. http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/179783.

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Many existing and emerging diseases of humans are of zoonotic origin. In addition, the development of antimicrobial resistance (AMR) presents a serious risk for hospitals, agriculture, and the community. Habitat loss and degradation are forcing many wild animal populations into closer contact with human populations, presenting opportunities for the introduction and transmission of bacterial diseases. In Australia, many shorebird species undertake yearly migrations to and from breeding grounds in the high Artic, and during their migrations they pass over one-third of the human population. To de

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40

Butterworth, Lynne Angela. "Evaluation of novel enzyme substrates for the detection of pathogenic bacteria." Thesis, Durham University, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.400674.

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41

Morley, Robert James. "An investigation into the interactions between pathogenic bacteria and Acanthamoeba polyphaga." Thesis, University of Bath, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.411034.

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42

Balasubramanian, Srikkanth [Verfasser], and Tobias [Gutachter] Ölschläger. "Novel anti-infectives against pathogenic bacteria / Srikkanth Balasubramanian ; Gutachter: Tobias Ölschläger." Würzburg : Universität Würzburg, 2018. http://d-nb.info/1162444509/34.

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43

Kondacs, Laszlo. "Novel substrates for the improved detection and identification of pathogenic bacteria." Thesis, University of Sunderland, 2018. http://sure.sunderland.ac.uk/10222/.

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Many diseases are caused by pathogenic bacteria. A key example of this is sepsis, which is mostly caused by staphylococci and Gram-negative bacteria. In addition, the highly resistant ESKAPE pathogens are responsible for the majority of hospital acquired infections. In order to treat bacterial infections effectively, and to avoid promoting bacterial resistance against antibacterial drugs, the correct agents must be used, for which in turn the detection and identification of pathogenic strains is essential. This research aims to develop selective chromogenic culture media, by introducing new an

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44

Dias, Diana Patrícia Pires. "Presence of pathogenic bacteria and antimicrobial resistance in Portuguese wild ungulates." Master's thesis, Universidade de Aveiro, 2014. http://hdl.handle.net/10773/14979.

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Mestrado em Microbiologia<br>Antimicrobial resistance is as an emerging global problem in both human and veterinary medicine. In theory, wild animals are rarely exposed to antimicrobial agents and therefore low levels of AMR are to be expected. However, the growing interaction of these animals with anthropogenic activities can have a huge impact in their bacterial flora. Escherichia coli is commonly found in the intestinal tract of a wide variety of animals and humans. This intestinal bacterium can be easily disseminated in different ecosystems. Therefore, it can be an useful indicator of the

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45

Mody, Shreena Himanshu. "The Antimicrobial Properties of Honey and Their Effect on Pathogenic Bacteria." BYU ScholarsArchive, 2018. https://scholarsarchive.byu.edu/etd/7042.

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Honey has been used to heal wounds since ancient times. There are many references in ancient literature that cite honey for its medicinal uses. It is used as an alternative agent to cure infections of wounds, burns, ulcers etc. Researchers have shown some of the antimicrobial properties of honey when used as an ointment. When applied to an affected area, it helps to promote the growth of healthy tissue. One of the factors on which the quality of the honey depends, is its geographical origin. Based on the location, honey types can vary as much as 100-fold from each other in color, aroma, viscos

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46

Ryzhkova, T. A., E. M. Babych, S. V. Kalinichenko, and N. I. Sklyar. "Antagonistic activity of lactobacillus strains against pathogenic corynebacteria in different cultivation conditions." Thesis, Сумський державний університет, 2013. http://essuir.sumdu.edu.ua/handle/123456789/32129.

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The most abundantly used probiotic strains come from the genus Lactobacillus. It is well known that probiotics can improve patient condition in medical disorders such as diarrhoea, gastroenteritis, short-bowel syndrome, and inflammatory intestinal diseases (Crohn’s disease and ulcerative colitis) and only a few studies have investigated their role in oral health. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/32129

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47

Subires, Orenes Alicia. "Optimization of flow cytometry assays for the detection of injured foodborne pathogenic bacteria." Doctoral thesis, Universitat Autònoma de Barcelona, 2015. http://hdl.handle.net/10803/311611.

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Algunos tratamientos de elaboración y conservación de los alimentos lesionan las bacterias, de manera que pierden la capacidad para multiplicarse y no son detectadas por métodos de cultivo convencionales. La citometría de flujo es una técnica de análisis independiente del cultivo de los microorganismos, usada ampliamente para evaluar de manera rápida el estado fisiológico de células bacterianas individuales, siendo la integridad de membrana unos de los indicadores más habituales debido a su importancia en la supervivencia de éstas. Sin embargo, los resultados obtenidos mediante citometría de f

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48

Doherty, Alice Majella. "Growth of a number of pathogenic bacteria on modified atmosphere packaged lamb." Thesis, University of Ulster, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.339314.

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49

Pfeilmeier, Sebastian. "Elicitation and evasion of plant innate immunity by beneficial and pathogenic bacteria." Thesis, University of East Anglia, 2017. https://ueaeprints.uea.ac.uk/66876/.

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Plasma membrane-localized pattern recognition receptors (PRRs) are central components of the plant innate immune system. PRRs perceive characteristic microbial features, termed pathogen-associated molecular patterns (PAMPs), leading to pattern-triggered immunity (PTI). As PAMPs from both pathogenic and beneficial bacteria are potentially recognized, both must employ strategies to evade and/or suppress PTI. Here, I show that exopolysaccharides (EPS) and flagella-driven motility, both of which are regulated by the secondary messenger cyclic-di-GMP, are important virulence factors at different st

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50

Pereira, Carla Sofia Gomes. "Use of bacteriophages on the inactivation of pathogenic bacteria in aquaculture system." Master's thesis, Universidade de Aveiro, 2009. http://hdl.handle.net/10773/4511.

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Mestrado em Microbiologia<br>A importância crescente da aquacultura a nível mundial contribui para compensar a progressiva redução das populações naturais de peixe. Contudo, o facto de várias pisciculturas sofrerem, frequentemente, grandes perdas económicas, devido a infecções causadas por microrganismos patogénicos, incluindo bactérias multiresistentes, torna urgente o desenvolvimento de estratégias menos lesivas para o ambiente. A Terapia fágica surge como uma potencial e emergente alternativa ao uso de antibióticos e outros antimicrobianos. O principal objectivo deste trabalho consistiu na

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