微型生物痕量元素组成对环境变化的响应

race elements are necessary trace nutrients for the micro-organisms growth. They are indispensable for the vigorous growth of micro-organisms. A variety of micro-biological plays an important role in marine substance transformation and energy transfer. The study investigated the variations of trace element composition under microbial environment changes, and used a kind of facultative autotrophic sulfur-oxidizing bacteria (Thiobacamonas.altus) as the research object. Trace element composition is different when the metabolic state is changed, and it has a greater demand for trace elements in the autotrophic state. The study compared the trace element composition of various micro-organisms, and found that trace element composition of the different types of micro-organisms is also different. Further analyzations explored the reasons for the variations and oceanographic significance of trace element composition.