Root nodule bacteria isolated from South African Lotononis bainesii, L. listii and L. solitudinis are species of Methylobacterium that are unable to utilize methanol

The South African legumes Lotononis bainesii, L. listii and L. solitudinis are specifically nodulated by highly effective, pink-pigmented bacteria that are most closely related to Methylobacterium nodulans on the basis of 16S rRNA gene homology. Methylobacterium spp. are characterized by their abili...

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Veröffentlicht in:Archives of microbiology 2009-04, Vol.191 (4), p.311-318
Hauptverfasser: Ardley, Julie Kaye, O'Hara, Graham W, Reeve, Wayne G, Yates, Ron J, Dilworth, Michael J, Tiwari, Ravi P, Howieson, John G
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container_issue 4
container_start_page 311
container_title Archives of microbiology
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creator Ardley, Julie Kaye
O'Hara, Graham W
Reeve, Wayne G
Yates, Ron J
Dilworth, Michael J
Tiwari, Ravi P
Howieson, John G
description The South African legumes Lotononis bainesii, L. listii and L. solitudinis are specifically nodulated by highly effective, pink-pigmented bacteria that are most closely related to Methylobacterium nodulans on the basis of 16S rRNA gene homology. Methylobacterium spp. are characterized by their ability to utilize methanol and other C₁ compounds, but 11 Lotononis isolates neither grew on methanol as a sole carbon source nor were able to metabolize it. No product was obtained for PCR amplification of mxaF, the gene encoding the large subunit of methanol dehydrogenase. Searches for methylotrophy genes in the sequenced genome of Methylobacterium sp. 4-46, isolated from L. bainesii, indicate that the inability to utilize methanol may be due to the absence of the mxa operon. While methylotrophy appears to contribute to the effectiveness of the Crotalaria/M. nodulans symbiosis, our results indicate that the ability to utilize methanol is not a factor in the Lotononis/Methylobacterium symbiosis.
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subjects Alcohol Oxidoreductases - genetics
Bacteria
Bacteriology
Biochemistry
Biological and medical sciences
Biomedical and Life Sciences
Biotechnology
Carbon
Carbon sources
Cell Biology
Culture Media
Dehydrogenases
Ecology
Fabaceae - microbiology
Fundamental and applied biological sciences. Psychology
Genes
Genes, Bacterial
Genes, rRNA
Genome, Bacterial
Genomes
Legumes
Life Sciences
Methanol
Methanol - metabolism
Methylobacterium - genetics
Methylobacterium - growth & development
Methylobacterium - isolation & purification
Methylobacterium - metabolism
Microbial Ecology
Microbiology
Miscellaneous
Original Paper
Oxidation
RNA, Bacterial - genetics
RNA, Ribosomal, 16S - genetics
Root Nodules, Plant - microbiology
Sequence Analysis, DNA
South Africa
Species Specificity
Symbiosis
title Root nodule bacteria isolated from South African Lotononis bainesii, L. listii and L. solitudinis are species of Methylobacterium that are unable to utilize methanol
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