bacteria

• Bacteria and fungi are other important soil organisms .
  细菌和真菌是另一类重要的土壤有机体。
• We now turn to another example, that of bacteria multiplying .
  现在我们再看个细菌繁殖的例子。
• The potato is a good nutrient medium for many bacteria .
  马铃薯对许多细菌是一种良好的培养基。
• Many bacteria can thrive upon very simple substrate .
  很多细菌在很简单的基质中也能很好地繁殖。
• Virus or bacteria infections of the alveoli result in pneumonia .
  病毒或细菌感染肺泡引起肺炎。
• Bacteria also cause diseases in other animals and in plants .
  细菌还在其它动物和植物里引起疾病。
• The photosynthetic pigment in bacteria is bacteriochlorophyll .
  细菌光合作用的色素是细菌叶绿素。
• Earthworms may be instrumental in dispersing fungi or bacteria .
  蚯蚓可能是散布真菌及细菌的工具。
• Bacteria may be infected with viruses called bacteriophages .
  有一种称为噬菌体的病毒可以感染细菌。
• Over 300 strains of bacteria have been found in activated sludge .
  活性污泥中发现有300种以上的细菌。