土壤生物降解试验中添加底物的引发效应。
Priming effect of substrate addition in soil-based biodegradation tests.
作者信息
Shen J, Bartha R
机构信息
Department of Biochemistry & Microbiology, Rutgers University, New Brunswick, New Jersey 08903-0231, USA.
出版信息
Appl Environ Microbiol. 1996 Apr;62(4):1428-30. doi: 10.1128/aem.62.4.1428-1430.1996.
To test whether substrate addition changes background CO2 evolution of soil, we measured both 14CO2 and net CO2 evolution from various test compounds. Glucose caused a priming effect, defined as substrate-stimulated soil organic matter mineralization. Formate, benzoate, n-hexadecane, and bis(2-ethylhexyl)phthalate caused no priming, and phenol caused only a transient one. The priming effect of glucose appears to be unusual and does not require a general rejection of net CO2 evolution measurements in biodegradability testing.
为了测试添加底物是否会改变土壤的背景二氧化碳释放量，我们测量了来自各种测试化合物的14CO2和净二氧化碳释放量。葡萄糖引起了激发效应，即底物刺激的土壤有机质矿化。甲酸盐、苯甲酸盐、正十六烷和邻苯二甲酸二（2-乙基己基）酯未引起激发效应，苯酚仅引起短暂的激发效应。葡萄糖的激发效应似乎并不寻常，在生物降解性测试中并不需要一概拒绝净二氧化碳释放量的测量。
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