医学微生物名词解释（Interpretation of medical microbial nouns）.doc

医学微生物名词解释（Interpretation of medical microbial nouns） Capsule: a slime of certain bacteria that is wrapped around the cell walls. Spore: certain bacteria, under certain environmental conditions, condense and condense cytoplasm, forming a round or oval body in bacteria. Flagellum: a slender, wavy filament on the thallus of bacteria. The flagellum staining was visible. Fimbriae: shorter, thinner, straight stiff filaments of flagella than on flagella. Visible electron microscope. Plasmid: is the genetic material for in vitro staining, double stranded closed circular DNA, control of certain genetic traits of bacteria. Stain particles: dyed with methylene blue, this particle is darker and purple, hence its name. Used to identify bacteria. Bacteria L: some bacteria can lose part of the cell wall in certain environment, environment and antibiotics. This phenomenon was first discovered by Lister, so it is called bacterial L. Under appropriate conditions, most bacteria L can be recovered into a bacterial type. Bacterial growth curve: bacterial growth curve is refers to single cell microorganism. It is a small amount of single cell microorganisms inoculated pure to a certain volume of liquid medium, in appropriate conditions to cultivate, regular sampling to determine the number of cells. Using the logarithm of the number of cell growth as ordinate, and using the culture time as the abscissa, we draw a curve as shown in the graph. We call this curve the growth curve of bacteria. Pyrogen: pyrogen (pyrogen), is a human or animal body injection can cause fever reaction of bacterial substance. Produce thermal source of bacteria are gram negative bacteria and pyrogen LPS the cell wall. Endotoxin: the lipopolysaccharide component in the cell walls of gram negative bacteria, which is released only after lysis. Is synthesized in the bacterial exotoxin: the process of growth and reproduction and is secreted into the toxic components of bacteria in. Mainly produced by Gram positive bact