无机养分对湖水中有机化学品矿化之前驯化期的影响。
Effect of inorganic nutrients on the acclimation period preceding mineralization of organic chemicals in lake water.
作者信息
Jones S H, Alexander M
机构信息
Institute for Comparative and Environmental Toxicology, Department of Agronomy, Cornell University, Ithaca, New York 14853.
出版信息
Appl Environ Microbiol. 1988 Dec;54(12):3177-9. doi: 10.1128/aem.54.12.3177-3179.1988.
The addition of phosphate, nitrate, or sulfate (each at 10 mM) decreased the acclimation period for the mineralization of low concentrations of p-nitrophenol (PNP) in lake water. Added phosphate shortened the acclimation period for biodegradation of 2 ng to 2 micrograms of PNP per ml in various lake water samples and of 2,4-dichlorophenoxyacetate at 100 ng/ml. Added P enhanced the rate of growth of PNP-mineralizing microorganisms in waters containing 200 ng or 2 micrograms of PNP per ml. We suggest that the effect of P on the acclimation period results from an increase in the growth rate of the initially small population of microorganisms able to mineralize the synthetic chemicals.
添加磷酸盐、硝酸盐或硫酸盐（均为10 mM）可缩短湖水中低浓度对硝基苯酚（PNP）矿化的适应期。添加的磷酸盐缩短了各种湖水样品中每毫升2纳克至2微克PNP以及100纳克/毫升2,4-二氯苯氧乙酸生物降解的适应期。添加的磷提高了每毫升含有200纳克或2微克PNP的水中PNP矿化微生物的生长速率。我们认为磷对适应期的影响是由于能够矿化合成化学品的最初少量微生物种群的生长速率增加所致。
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