[Relationships between phosphine content of samples and their microbial populations and enzyme activities].
The relationships between phosphine content and various microbial florae, activities of different enzymes were investigated. The results indicated that the phosphine content of samples from various environments was positively related to total anaerobic microorganisms, organic phosphate compounds-dissolving bacteria, denitrifying bacteria, alkaline phosphatase activity and dehydrogenase activity of the samples. The correlation coefficients (R2) for these were 0.93, 0.90, 0.69, 0.79 and 0.82, respectively. The results also showed that the phosphine content was not related to total aerobic microorganisms, inorganic phosphate compounds-dissolving bacteria, sulfate-reducing bacteria, acidic phosphatase activity. In addition to formerly results, the results might infer that the formation of phosphine was due to the reduction of organic phosphate compounds by anaerobic heterotrophic microbes, especially the denitrifying bacteria by using reducing sugar.
Liu
Zhi-pei
ZP
Institute of Microbiology, Chinese Academy of Sciences, Beijing 100080, China. liuzhp@sun.im.ac.cn
Wang
Bao-jun
BJ
Jia
Sheng-fen
SF
Liu
Shuang-jiang
SJ
D000135:Acid Phosphatase / Q000378:metabolism; D000469:Alkaline Phosphatase / Q000378:metabolism; D000693:Anaerobiosis; D001419:Bacteria / Q000201:enzymology* / Q000254:growth & development*; D010088:Oxidoreductases / Q000378:metabolism; D010720:Phosphines / Q000378:metabolism*
D010720:Phosphines; D010088:Oxidoreductases; D000469:Alkaline Phosphatase; D000135:Acid Phosphatase; C044646:phosphine