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1 光合细菌1.1 光合细菌的分布及分类光合细菌(phototrophic bacteria)是一种水生微生物,广泛分布在水田、湖沼、江河、海洋、活性污泥和土壤中,特别喜生于被有机污染了的水体中,每克风干土中就有10~4～10~8个光合细菌生存.该菌能利用光能,靠光合作用生长繁殖,但与植物和藻类等其它营光合作用的生物有以下不同点:①只能在灰氧光照条件下进行光合作用而生长
1 Photosynthetic bacteria 1.1 Distribution and classification of photosynthetic bacteria Phototrophic bacteria (phototrophic bacteria) is a kind of aquatic microorganisms, widely distributed in paddy fields, lakes, rivers, oceans, activated sludge and soil, particularly fond of organic contaminated water , There are 10 ~ 4 ~ 10 ~ 8 photosynthetic bacteria per gram of dry soil.The bacteria can use light energy to grow by photosynthesis, but with other photosynthetic organisms such as plants and algae have the following differences : ① growth can only be carried out under the conditions of light oxygen and light photosynthesis