Description of seven candidate species affiliated with the phylum Actinobacteria, representing planktonic freshwater bacteria

被引:89
作者
Hahn, Martin W. [1 ]
机构
[1] Austrian Acad Sci, Inst Limnol, A-5310 Mondsee, Austria
基金
奥地利科学基金会;
关键词
RIBOSOMAL-RNA GENES; IN-SITU HYBRIDIZATION; COMMUNITY COMPOSITION; TEMPERATE; HABITATS; LAKE; PROKARYOTES; SEQUENCES; DYNAMICS; RIVERS;
D O I
10.1099/ijs.0.001743-0
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
Actinobacteria. comprise a substantial fraction of the bacterioplankton in freshwater lakes and streams. Numerous cultivation-independent investigations have retrieved actinobacterial 16S rRNA gene sequences from such habitats. The taxa detected in freshwater habitats are usually absent from terrestrial and marine systems. So far, none of the indigenous freshwater lineages is represented by a taxon with a validly published name. The seven organisms for which Candidatus status is described here were isolated from freshwater lakes and ponds located in tropical, subtropical and temperate climatic zones. Phylogenetic analyses demonstrated that they are affiliated with one of the actinobacterial lineages indigenous to freshwater bacterioplankton. The seven novel taxa could only be cultivated to date as mixed cultures that also contain non-actinobacterial strains. Due to the lack of pure cultures, I propose to establish the candidate species 'Candidatus Planktoluna difficilis', 'Candidatus Aquiluna rubra', 'Candidatus Flaviluna lacus', 'Candidatus Rhodoluna limnophila', 'Candidatus Rhodoluna planktonica', 'Candidatus Rhodoluna lacicola' and 'Candidatus Limnoluna rubra' for these taxa.
引用
收藏
页码:112 / 117
页数:6
相关论文
共 17 条
[1]   Diversity and seasonal dynamics of Actinobacteria populations in four lakes in northeastern Germany [J].
Allgaier, Martin ;
Grossart, Hans-Peter .
APPLIED AND ENVIRONMENTAL MICROBIOLOGY, 2006, 72 (05) :3489-3497
[2]   Synchrony and seasonality in bacterioplankton communities of two temperate rivers [J].
Crump, BC ;
Hobbie, JE .
LIMNOLOGY AND OCEANOGRAPHY, 2005, 50 (06) :1718-1729
[3]   Comparative 16S rRNA analysis of lake bacterioplankton reveals globally distributed phylogenetic clusters including an abundant group of actinobacteria [J].
Glöckner, FO ;
Zaichikov, E ;
Belkova, N ;
Denissova, L ;
Pernthaler, J ;
Pernthaler, A ;
Amann, R .
APPLIED AND ENVIRONMENTAL MICROBIOLOGY, 2000, 66 (11) :5053-+
[4]   Ecotypes of planktonic Actinobacteria with identical 16S rRNA genes adapted to thermal niches in temperate, subtropical, and tropical freshwater habitats [J].
Hahn, MW ;
Pöckl, M .
APPLIED AND ENVIRONMENTAL MICROBIOLOGY, 2005, 71 (02) :766-773
[5]   The filtration-acclimatization method for isolation of an important fraction of the not readily cultivable bacteria [J].
Hahn, MW ;
Stadler, P ;
Wu, QL ;
Pöckl, M .
JOURNAL OF MICROBIOLOGICAL METHODS, 2004, 57 (03) :379-390
[6]   Isolation of novel ultramicrobacteria classified as Actinobacteria from five freshwater habitats in Europe and Asia [J].
Hahn, MW ;
Lünsdorf, H ;
Wu, QL ;
Schauer, M ;
Höfle, MG ;
Boenigk, J ;
Stadler, P .
APPLIED AND ENVIRONMENTAL MICROBIOLOGY, 2003, 69 (03) :1442-1451
[7]   Food selection by bacterivorous protists:: insight from the analysis of the food vacuole content by means of fluorescence in situ hybridization [J].
Jezbera, J ;
Hornák, K ;
Simek, K .
FEMS MICROBIOLOGY ECOLOGY, 2005, 52 (03) :351-363
[8]   TAXONOMIC NOTE - IMPLEMENTATION OF THE PROVISIONAL STATUS CANDIDATUS FOR INCOMPLETELY DESCRIBED PROKARYOTES [J].
MURRAY, RGE ;
STACKEBRANDT, E .
INTERNATIONAL JOURNAL OF SYSTEMATIC BACTERIOLOGY, 1995, 45 (01) :186-187
[9]  
RHEINHEIMER G, 1980, AQUATIC MICROBIOLOGY
[10]  
Rosselló-Mora R, 2001, FEMS MICROBIOL REV, V25, P39, DOI 10.1111/j.1574-6976.2001.tb00571.x