| Taxonomy Citation ID | Reference | ||||
|---|---|---|---|---|---|
| 42381 |
Chen WM,
Yang SH,
Young CC,
Sheu SY,
( 2013 ) Arcicella rigui sp. nov., isolated from water of a wetland, and emended descriptions of the genus Arcicella, Arcicella aquatica, Arcicella rosea and Arcicella aurantiaca. PMID : 22368167 DOI : 10.1099/ijs.0.037242-0 Abstract >>
A bacterial strain, designated NSW-5(T), was isolated from a water sample taken from Niao-Song Wetland Park in Taiwan and characterized using a polyphasic taxonomic approach. Cells of strain NSW-5(T) were strictly aerobic, Gram-stain-negative, non-motile and polymorphic, being straight, vibrioid, curved and spiral-shaped rods surrounded by a thick capsule and forming light pink-coloured colonies. Some rings consisting of several cells were present. Growth occurred at 10-40 �XC (optimum, 25 �XC), with 0-3.0 % NaCl (optimum, 0 %) and at pH 6.0-8.0 (optimum, pH 7.0). Phylogenetic analyses based on 16S rRNA gene sequences showed that strain NSW-5(T) belonged to the genus Arcicella with sequence similarities of 98.6, 98.0 and 97.3 % with Arcicella aquatica NO-502(T), Arcicella rosea TW5(T) and Arcicella aurantiaca TNR-18(T), respectively. The predominant cellular fatty acids were summed feature 3 (C(16 : 1)�s7c and/or C(16 : 1)�s6c; 20.8 %), C(16 : 0) (14.6 %), iso-C(15 : 0) (13.8 %), C(16 : 1)�s5c (12.5 %) and C(18 : 0) (11.4 %), and the only respiratory quinone was MK-7. The polar lipid profile consisted of phosphatidylethanolamine and several uncharacterized glycolipids, aminolipids, phospholipids and aminophospholipids. The DNA G+C content of strain NSW-5(T) was 44.1 mol%. The DNA-DNA relatedness of strain NSW-5(T) with respect to recognized species of the genus Arcicella was less than 70 %. On the basis of phylogenetic inference and phenotypic data, strain NSW-5(T) should be classified as a representative of a novel species, for which the name Arcicella rigui sp. nov. is proposed. The type strain is NSW-5(T) (= KCTC 23307(T) = BCRC 80260(T)). Emended descriptions of the genus Arcicella and of Arcicella aquatica, Arcicella rosea and Arcicella aurantiaca are also proposed.
|
20926 |
Kämpfer P,
Lodders N,
Busse HJ,
( 2009 ) Arcicella rosea sp. nov., isolated from tap water. PMID : 19196775 DOI : 10.1099/ijs.0.002675-0 Abstract >>
Strain TW5(T), a motile, Gram-negative bacterium that produced pale-pink colonies, was isolated from tap water on R2A agar at 20 degrees C. 16S rRNA gene sequence studies showed that the strain clustered with Arcicella aquatica (99.0 % sequence similarity to the type strain). The main polyamine present was spermidine, the quinone system comprised menaquinone MK-7 and the polar lipid profile consisted of a mixture of aminophospholipids, aminolipids, glycolipids and uncharacterized polar lipids. The fatty acid profile was slightly different from that reported for A. aquatica. The results of DNA-DNA hybridizations and physiological and biochemical tests clearly allowed both genotypic and phenotypic differentiation of the isolate from A. aquatica. On the basis of these results, it is proposed that the strain should be classified within a novel species of the genus Arcicella. The name proposed for this taxon is Arcicella rosea sp. nov.; the type strain is TW5(T) (=CCUG 55942(T) =CCM 7523(T)).
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