RRC ID 19106
著者 Peduzzi S, Storelli N, Welsh A, Peduzzi R, Hahn D, Perret X, Tonolla M.
タイトル Candidatus "Thiodictyon syntrophicum", sp. nov., a new purple sulfur bacterium isolated from the chemocline of Lake Cadagno forming aggregates and specific associations with Desulfocapsa sp.
ジャーナル Syst Appl Microbiol
Abstract Strain Cad16(T) is a small-celled purple sulfur bacterium (PSB) isolated from the chemocline of crenogenic meromictic Lake Cadagno, Switzerland. Long term in situ observations showed that Cad16(T) regularly grows in very compact clumps of cells in association with bacteria belonging to the genus Desulfocapsa in a cell-to-cell three dimensional structure. Previously assigned to the genus Lamprocystis, Cad16(T), was here reclassified and assigned to the genus Thiodictyon. Based on comparative 16S rRNA gene sequences analysis, isolate Cad16(T) was closely related to Thiodictyon bacillosum DSM234(T) and Thiodictyon elegans DSM232(T) with sequence similarities of 99.2% and 98.9%, respectively. Moreover, matrix-assisted laser desorption/ionization time of flight mass spectrometry (MALDI-TOF MS) analysis separated Cad16(T) from other PSB genera, Lamprocystis and Thiocystis. Major differences in cell morphology (oval-sphere compared to rod-shaped) and arrangement (no netlike cell aggregates), carotenoid group (presence of okenone instead of rhodopinal), chemolithotrophic growth as well as the ability to form syntrophic associations with a sulfate-reducing bacteria of the genus Desulfocapsa suggested a different species within the genus Thiodictyon. This isolate is therefore proposed and described as Candidatus "Thiodictyon syntrophicum" sp. nov., a provisionally novel species within the genus Thiodictyon.
巻・号 35(3)
ページ 139-44
公開日 2012-5-1
DOI 10.1016/j.syapm.2012.01.001
PII S0723-2020(12)00018-5
PMID 22386960
MeSH Bacterial Adhesion* Bacterial Physiological Phenomena* Bacterial Typing Techniques Chromatiaceae / chemistry Chromatiaceae / classification* Chromatiaceae / isolation & purification* Chromatiaceae / physiology Cluster Analysis DNA, Bacterial / chemistry DNA, Bacterial / genetics DNA, Ribosomal / chemistry DNA, Ribosomal / genetics Deltaproteobacteria / physiology* Fresh Water / microbiology* Microscopy Molecular Sequence Data Phylogeny RNA, Ribosomal, 16S / genetics Sequence Analysis, DNA Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization Switzerland
IF 3.224
引用数 14
WOS 分野 BIOTECHNOLOGY & APPLIED MICROBIOLOGY MICROBIOLOGY
リソース情報
一般微生物 JCM 15111 JCM 15112 JCM 15483