Effect of increasing pentachlorophenol (PCP) concentrations on bacterial populations in glycine-percolated soils
Effect of increasing pentachlorophenol (PCP) concentrations on bacterial populations in glycine-percolated soils
复制标题
增加五氯苯酚 (PCP) 浓度对甘氨酸渗透土壤中细菌种群的影响
DOI：
10.1007/bf00264337
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发表时间：
1987
影响因子：
6.5
通讯作者：
Kyō Sato
中科院分区：
文献类型：
--
作者：
Kyō Sato
比较了甘氨酸处理和五氯酚（PCP）处理土壤中几个细菌类群的数量变化。随着五氯苯酚剂量的增加，五氯苯酚延缓了活菌总数的增加。在五氯苯酚浓度增加后，其浓度逐渐降低，但在土壤中，在存在大量五氯苯酚的情况下，其浓度会在短时间内保持在最高水平。革兰氏阴性菌和PCP耐受细菌细胞的数量急剧增加，随后出现相当的下降，尽管前者总是略大于后者。五氯苯酚减少孢子数量。渗滤液中的五氯苯酚和甘氨酸在渗滤过程中消散，但甘氨酸的消散因五氯苯酚量的增加而减慢。在渗滤后期，在液体中检测到大部分五氯苯酚。pH值的变化表明，生化反应的土壤中。这些变化因五氯苯酚的含量而异。
Population changes of several bacterial groups were compared between soils percolated with glycine and amended with different amounts of pentachlorophenol (PCP). PCP retarded the increase in total viable bacteria with increasing doses of PCP. The increase was followed by a gradual decrease, but the numbers in the soil remained at the maximum level for a short time in the presence of large amounts of PCP. The numbers of Gram-negative bacteria and PCP-tolerant bacterial cells increased dramatically, being followed by a comparable decrease, although the former was always slightly larger than the latter. PCP reduced spore counts. PCP and glycine in the percolation fluid dissipated during the percolation, but the dissipation of glycine was slowed by the presence of increased amounts of PCP. Large portions of PCP were detected in the liquid at the late stage of percolation. Changes in pH suggested biochemical reactions in the percolated soil. The changes differed according to the amount of PCP.