Coaggregation among nonflocculating bacteria isolated from activated sludge

被引：126

作者：

Malik, A ^{[1
]}

Sakamoto, M ^{[1
]}

Hanazaki, S ^{[1
]}

Osawa, M ^{[1
]}

Suzuki, T ^{[1
]}

Tochigi, M ^{[1
]}

Kakii, K ^{[1
]}

机构：

[1] Utsunomiya Univ, Fac Engn, Dept Appl Chem, Utsunomiya, Tochigi 3218585, Japan

来源：

APPLIED AND ENVIRONMENTAL MICROBIOLOGY | 2003年 / 69卷 / 10期

关键词：

D O I：

10.1128/AEM.69.10.6056-6063.2003

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：

Thirty-two strains of nonflocculating bacteria isolated from sewage-activated sludge were tested by a spectrophotometric assay for their ability to coaggregate with one other in two-membered systems. Among these strains, eight showed significant (74 to 99%) coaggregation with Acinetobacter johnsonii S35 while only four strains coaggregated, to a lesser extent (43 to 65%), with Acinetobacter junii S33. The extent and pattern of coaggregation as well as the aggregate size showed good correlation with cellular characteristics of the coaggregating partners. These strains were identified by sequencing of full-length 16S rRNA genes. A. johnsonii S35 could coaggregate with strains of several genera, such as Oligotropha carboxidovorans, Microbacterium esteraromaticum, and Xanthomonas spp. The role of Acinetobacter isolates as bridging organisms in multigeneric coaggregates is indicated. This investigation revealed the role of much-neglected nonflocculating bacteria in Hoc formation in activated sludge.

引用

页码：6056 / 6063

页数：8

共 28 条

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