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a10a FungalPathogns
a10a FungalPathogns

... feces •Mostly immunocompromised patients; AIDS ...
GENETIC RECOMBINATION IN BACTERIA:
GENETIC RECOMBINATION IN BACTERIA:

... also been instrumental in the contemporwy revolution in biotechnology. The importance of bacteria as agents of infectious disease was clearly established by 1876, but this motivated little interest in their fundamental biology until about sixty-five years later. For most of that interval, the geneti ...
PHAGOCYTOSIS AND INTRACELLULAR KILLING OF SERUM
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... FcγR), complement components and specific glycosylated molecules (1). Three major classes of FcγR on human leukocytes are currently recognized; FcγRI (CD64), FcγRII (CD32) and FcγRIII (CD16). These receptors can be distinguished on basis of differences in their primary sequences, molecular size, lig ...
Darkfield and Phase Contrast Microscopy
Darkfield and Phase Contrast Microscopy

... Viewing live organisms More detailed view of external features Adding a fluorescent dye increase the ability to ...
Chapter 15
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Osmoregulation in Halophilic Bacteria
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... London: Academic Press. [Most comprehensive overview on osmoregulatory mechanisms in halophilic bacteria, emphasizing characteristics of compatible solutes found in bacteria, compatible solute synthesis, and regulation of their biosynthetic pathways.] Grammann K., Volke A., and Kunte H.J. (2002). A ...
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A new a-proteobacterial clade of Bdellovibrio
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... These have been found in various tissues and cell types in all species of life (Ganz, 1999; Hancock & Diamond, 2000; Lehrer & Ganz 2002; Zaiou & Gallo, 2002; Bulet et al., 2004). AMPs are conserved components of the innate immune response (Brogden, 2005; Zasloff, 2002) and have been isolated from bo ...
Molecular Structures Shared by Prokaryotes
Molecular Structures Shared by Prokaryotes

... determined function. Furthermore, this is only speculation, since neither the original proteins, nor the process of sequence erosion was ever observed. Contradictions as to which bacterial group is the transition towards eukaryotes The second major obstacle for the PET theory is that the PVC superph ...
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Chemotaxis



Chemotaxis (from chemo- + taxis) is the movement of an organism in response to a chemical stimulus. Somatic cells, bacteria, and other single-cell or multicellular organisms direct their movements according to certain chemicals in their environment. This is important for bacteria to find food (e.g., glucose) by swimming toward the highest concentration of food molecules, or to flee from poisons (e.g., phenol). In multicellular organisms, chemotaxis is critical to early development (e.g., movement of sperm towards the egg during fertilization) and subsequent phases of development (e.g., migration of neurons or lymphocytes) as well as in normal function. In addition, it has been recognized that mechanisms that allow chemotaxis in animals can be subverted during cancer metastasis.Positive chemotaxis occurs if the movement is toward a higher concentration of the chemical in question; negative chemotaxis if the movement is in the opposite direction. Chemically prompted kinesis (randomly directed or nondirectional) can be called chemokinesis.
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