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nature : (a) a large class of cells is short and simple structure, the cell wall of tenacity, the general approach to the second division breeding and water naturally strong prokaryotes. Cell diameter of about 0.5 to 1.0 µ m, length of 0.5 ~ 5 µ m. Basic form of a spherical, rod-shaped spiral and the three. In addition to cell wall structure (mainly containing peptidoglycan), the cell membrane, nuclear and cytoplasmic quality, some also have flagella, pili, such as Bacillus and Clostridium structure. Most camps saprophytic life, minority business parasitic, or solar energy self-nurturing of life can be self-nurturing. Most aerobic and anaerobic a facultative anaerobic or post-sexual persons. Found in soil, water, air and organisms outside and industrial and agricultural products, some types can exist in other organisms can not live in extreme environments. Natural substances in circulation, and maintain ecological balance and improve soil fertility plays a tremendous role. Many types were used in the development of industry, agriculture, medicine, environmental protection and other production practice to provide mankind with various amino acids, organic acids, alcohols, enzymes and antibiotics, single-cell protein, farm insecticidal bacteria, the bacteria fertilizer, vaccines, toxoid, modulating agents and plasma generation other products; some are human, animal and plant disease pathogens, certain types also cause a variety of industrial and agricultural products of decay and degeneration; many types of biological research is based on the theory of good targets; Escherichia coli and Bacillus subtilis, such as genetic engineering is an important receptor bacteria. (2) the war in the first use of biological warfare agents. It is under the microscope will be able to see the original single-cell nuclear microorganisms. The earth is the origin of the first cell life forms. Divided into bacteria, Bacillus, the vibrios (or Gryphiswaldense) three. Its size μ m dollars, in general (0.2 ~ 1.25) × (0.3 ~ 14) μ m. Can be used as biological warfare agents are of the plague bacillus bacteria, Vibrio cholera, typhoid bacillus, MA Burkholderia pseudomallei, anthrax, brucellosis and tularemia infections. Most bacteria in the sun, the role of disinfectants, or after boiling will kill rapidly.
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