INFLUENCE OF PLUMBING MATERIALS ON BIOFILM FORMATION AND GROWTH OF LEGIONELLA-PNEUMOPHILA IN POTABLE WATER-SYSTEMS

被引：178

作者：

ROGERS, J ^{[1
]}

DOWSETT, AB ^{[1
]}

DENNIS, PJ ^{[1
]}

LEE, JV ^{[1
]}

KEEVIL, CW ^{[1
]}

机构：

[1] THOMES WATER UTIL PLC, WATER & ENVIRONM SCI, SPENCER HOUSE LAB, READING RG2 0JN, BERKS, ENGLAND

来源：

APPLIED AND ENVIRONMENTAL MICROBIOLOGY | 1994年 / 60卷 / 06期

关键词：

D O I：

10.1128/AEM.60.6.1842-1851.1994

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

A two-stage chemostat model of a plumbing system was developed, with tap water as the sole nutrient source. The model system was populated with a naturally occurring inoculum derived from an outbreak of Legionnaires' disease and containing Legionella pneumophila along with associated bacteria and protozoa. The model system was used to develop biofilms on the surfaces of a range of eight plumbing materials under controlled, reproducible conditions. The materials varied in their abilities to support biofilm development and the growth of L. pneumophila. Elastomeric surfaces had the most abundant biofilms supporting the highest numbers of L. pneumophila CFU; this was attributed to the leaching of nutrients for bacterial growth from the materials. No direct relationship existed between total biofouling and the numbers of L. pneumophila CFU.

引用

页码：1842 / 1851

页数：10

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