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Volume 49, Issue 2

gen. nov., sp. nov. and sp. nov., isolated from a saline lake Free

Abstract

Phenotypic and phylogenetic studies were performed with two strains (OCh 239 and OCh 210, T = type strain) of aerobic bacteriochlorophyll-containing bacteria isolated from the charophytes and the epiphytes on the stromatolites, respectively, of a saline lake located on the west coast of Australia. Both strains were chemoheterotrophic, Gram-negative and motile rods with subpolar flagella. Catalase and oxidase were produced. ONPG reaction was positive. Cells utilized -glucose, acetate, butyrate, citrate, -lactate, -malate, pyruvate, succinate, -aspartate and -glutamate. Acids were produced from -fructose and -glucose. Bacteriochlorophyll a was synthesized under aerobic conditions. Strain OCh 239 had nitrate reductase and phosphatase. Acids were produced from -arabinose, -galactose, lactose, maltose, -ribose and sucrose. The strain could grow in 0·20–0% (w/v) NaCI. Strain OCh 210 had urease. Hydrolysis of gelatin was positive. Acids were produced from -xylose. The strain could grow in 0·5–20·0% (w/v) NaCI. The results of 16S rRNA sequence comparisons revealed that strains OCh 239 and OCh 210 formed a new cluster within the -3 group of the subclass of the class . The similarity value of the 16S rRNA sequences between strains OCh 239 and OCh 210 was 95·8%. Therefore, it was concluded that these two strains should be placed in a new genus, gen. nov., as the new species sp. nov. and sp. nov. The type species of the genus is . The type strains of and are OCh 239 (= JCM 10272) and OCh 210 (= JCM 10271), respectively.

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Keyword(s): 16S rRNA , aerobic bacteriochlorophyll-containing bacteria , Roseivivax halodurans , Roseivivax halotolerans and saline lake
© 1999, International Union of Microbiological Societies
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1999-04-01
2024-04-26
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Roseivivax halodurans gen. nov., sp. nov. and Roseivivax halotolerans sp. nov., aerobic bacteriochlorophyll-containing bacteria isolated from a saline lake
Int J Syst Evol Microbiol 49, 629 (1999); https://doi.org/10.1099/00207713-49-2-629
/content/journal/ijsem/10.1099/00207713-49-2-629
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