Abstract:
:The cellular fatty acid compositions and ubiquinone contents of 182 Legionella strains representing 23 species were determined by capillary gas-liquid chromatography and reverse-phase high-performance liquid chromatography, respectively. Except for the type strain of Legionella erythra (ATCC 35303T), all Legionella species contained large (40 to 90%) amounts of branched-chain fatty acids and only trace to small (less than 0.5 to 5%) amounts of ester-linked hydroxy acids. The 23 species were placed in three major fatty acid groups on the basis of differences in the relative amounts of 14-methylpentadecanoic (Ci16:0), hexadecanoic (C16:1), and 12-methyltetradecanoic (Ca15:0) acids. All Legionella species contained ubiquinones with 9 to 14 isoprene units in the side chains and were divided into five different ubiquinone groups. The species were further differentiated into 16 groups on the basis of qualitative and quantitative differences in their fatty acid compositions and ubiquinone contents. Both of these chemical characteristics can be used to distinguish Legionella species from other gram-negative bacteria and rapidly and accurately identify suspected isolates before serologic and other tests are done.
journal_name
J Clin Microbioljournal_title
Journal of clinical microbiologyauthors
Lambert MA,Moss CWdoi
10.1128/JCM.27.3.465-473.1989subject
Has Abstractpub_date
1989-03-01 00:00:00pages
465-73issue
3eissn
0095-1137issn
1098-660Xjournal_volume
27pub_type
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