BIOFILMS AS MAJOR SOURCES OF LEGIONELLA SPP IN HYDROTHERMAL AREAS AND THEIR DISPERSION INTO STREAM WATER
BIOFILMS AS MAJOR SOURCES OF LEGIONELLA SPP IN HYDROTHERMAL AREAS AND THEIR DISPERSION INTO STREAM WATER
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DOI：
10.1016/0168-6496(93)90021-x
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发表时间：
1993-05-01
影响因子：
4.2
通讯作者：
DACOSTA, MS
中科院分区：
文献类型：
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作者：
MARRAO, G;VERISSIMO, A;DACOSTA, MS
对葡萄牙中部两个热液区和美国新墨西哥州一个热液区的水和生物膜进行了军团菌检查。一般来说，军团菌属分离的生物膜比从水中，虽然一个生物膜的温度为50摄氏度，并没有产生这些生物体的分离。在一个区域L. sg）3型嗜肺军团菌构成了河流及其下生物膜的主要种群; pneumophila sg 1在河床沉积物中占优势，主要排放口下方有少量温泉，下游水域中也有。没有军团菌被分离出的水上游的热液区，表明热区的溪流中的生物体的来源。在另外两个热液区，L. pneumophila sg 1为主要分离群体，L.嗜肺菌sg 3不存在或分离出少量。分离株L. micdadei也在一个热液区被发现，而'L. londoniensis'与另一个分离。
Water and biofilms from two hydrothermal areas in central Portugal, and one hydrothermal area in New Mexico, USA, were examined for Legionella spp. In general, Legionella spp were isolated in higher numbers from biofilms than from water, although one biofilm with a temperature of 50-degrees-C, did not yield isolates of these organisms. In one area L. pneumophila serogroup (sg) 3 constituted the major population in the thermal discharge by the stream and the biofilm below it; however, L. pneumophila sg 1 was predominant in the sediments of the stream bed with minor thermal springs below the main discharge and in the water downstream. No Legionellae were isolated from water upstream of the hydrothermal area indicating that the thermal area was the source of the organisms in the stream water. In the other two hydrothermal areas, L. pneumophila sg 1 constituted the major population isolated, whereas L. pneumophila sg 3 was absent or isolated in low numbers. isolates of L. micdadei were also recovered from one hydrothermal area, while 'L. londoniensis' was isolated from another.