| 词汇 | bacterium |
| 释义 | bacterium noun[ Cusually plural ] uk /bækˈtɪə.ri.əm/ us /bækˈtɪr.i.əm/pluralbacteriauk /bækˈtɪə.ri.ə/ us /bækˈtɪr.i.ə/ C1 a type of very small organism that lives in air, earth, water, plants, and animals, often one that causes disease: 细菌 an illness caused by bacteria in drinking water饮用水中细菌引起的疾病 The bacterium Streptococcus pneumoniae causes about a third of some 3,000 annual meningitis cases.在每年约3000起脑膜炎病例中，1/3左右是由一种叫“肺炎链球菌”的细菌引起的。 STEVE GSCHMEISSNER/SCIENCE PHOTO LIBRARY/Science Photo Library/GettyImages Bacteria, moulds, germs & viruses abacterial acquired immune deficiency syndrome acquired immunodeficiency syndrome adenovirus aerobe bacteriology flora fly agaric germicidal germophobe gnotobiotic listeria microbe microorganism probiotic prokaryotic reindeer moss respiratory syncytial virus retroviral root rot Examples of bacteriumbacterium Our findings are of special interest because the bacterium we discovered represents a genuine thermophilic species. Our use of modern soil bacteria as the inoculum might be considered artificial relative to studies on the establishment of the first bacterium. Figure 4 shows a cartoon of the photosynthetic membrane of a typical purple bacterium. Finally, during our observations of the seminal receptacle we did not observe any structure in the spermatozoa which could be interpreted as an intracellular bacterium. The bacterium must therefore traverse this cellular barrier, and this is thought to occur through the endothelial cells rather than around them. First, the search for a productive strain of bacterium that was capable of generating a large amount of toxin. However, ruminants appear to be the major reservoir for this bacterium. In the biological case, when a bacterium is in an environment where it can survive, it may replicate. Therefore, the bacterium must first traverse the endothelial cell barrier to cause meningitis. Multiple steps are involved during the pathogenesis of infection, including the colonisation of healthy individuals and invasion of the bacterium into the cerebrospinal fluid. The bacterium fermented sugars, di- and polysaccharides, under strongly anaerobic conditions. The excretion pattern of the bacterium in tonsillar swabs and nasal swabs was highly variable. These previous reports may explain how the bacterium survives winter. Of these 18 (26 %) had the bacterium in at least one water sample. This bacterium is an intracellular pathogen that survives inside macrophages. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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