细菌和原生动物捕食者对河口水样中大肠杆菌存活的相对影响。
Relative effects of bacterial and protozoan predators on survival of Escherichia coli in estuarine water samples.
作者信息
McCambridge J, McMeekin T A
出版信息
Appl Environ Microbiol. 1980 Nov;40(5):907-11. doi: 10.1128/aem.40.5.907-911.1980.
Abstract
The relative effect of protozoan and bacterial predators on the survival of Escherichia coli in estuarine water samples was examined. Predacious protozoa exerted their major influence on E. coli destruction during the first 2 days of a 10-day-decline period. Inhibition of protozoa after day 2 had little effect on E. coli survival. Bacterial predators also contributed to E. coli destruction but in natural estuarine water samples were maintained at lower levels due to "grazing" by predacious protozoa.
摘要
研究了原生动物和细菌捕食者对河口水样中大肠杆菌存活的相对影响。在为期10天的下降期的头2天里，捕食性原生动物对大肠杆菌的破坏发挥了主要作用。第2天后对原生动物的抑制对大肠杆菌的存活影响不大。细菌捕食者也对大肠杆菌的破坏有作用，但在天然河口水样中，由于捕食性原生动物的“捕食”，其数量维持在较低水平。
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