Comparative Aspects of Bacterial Lipids

Goldfine, Howard

doi:10.1016/s0065-2911(08)60187-3

Cited by 173 publications

(89 citation statements)

References 261 publications

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“…Significantly, these PUFAs do not have the methyleneinterrupted double-bond positional pattern that is characteristic of those in eukaryotic micro-organisms, plants and animals. Subsequently, Goldfine (1972) recommended that the doctrine on PUFAs in bacteria should be modified so as to exclude the biosynthesis of methylene-interrupted PUFAs. Nonetheless, the wrong identification of PUFAs in some bacteria continued to occur and lent weight to the argument of non-PUFA production by prokaryotes.…”

Section: Approaching the Status Quomentioning

confidence: 99%

Polyunsaturated fatty acids in marine bacteria — a dogma rewritten

1999

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Section: Approaching the Status Quomentioning

confidence: 99%

Polyunsaturated fatty acids in marine bacteria — a dogma rewritten

1999

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“…Lipids can provide good characters for the classification and identification of bacteria (10,31,42). In mycobacteria and coryneform and nocardioform bacteria the distribution of longchain components, in particular the mycolic acids, has diagnostic value (1, 2, 3, 12, 25, 26, 31).…”

mentioning

confidence: 99%

Polar Lipid Composition in the Classification of Nocardia and Related Bacteria

Minnikin

Patel²,

Alshamaony³

et al. 1977

International Journal of Systematic Bacteriology

845

575

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Strains representing the mycolic acid-containing taxa Nocard ia , Mycobacterium, Gordona, Corynebacterium, Bacterionema, and the "rhodochrous" complex were analysed for polar lipids by two-dimensional, thin-layer chromatography; diphosphatidylglycerol and phosphatidylinositol were found in all strains and phosphatidylethanolamine was absent only in extracts of Coryne bacterium and Bacterionema. Mono-and diacyl phosphatidylinositol dimannosides were present in all Nocardia, Mycobacterium, Corynebacterium, and rhodochrous strains and in the single strain of Gordona aurantiaca examined; Bacterionema and strains of the other Gordona species had only a monoacyl phosphatidylinosito1 dimannoside. Phosphatidylglycerol was present in substantial amounts in extracts of two strains of Bacterionema matruchotii and in reduced proportions in strains of several other species. Unidentified glycolipids were detected in the lipids of a majority of the organisms investigated.Lipids can provide good characters for the classification and identification of bacteria (10, 31, 42). In mycobacteria and coryneform and nocardioform bacteria the distribution of longchain components, in particular the mycolic acids, has diagnostic value (1, 2, 3, 12, 25, 26, 31). Less attention has been paid to the value of polar lipids as taxonomic markers. Inconsistencies between various reports (17, 19, 21, 22, 37, 48-50) on the distribution of polar lipids in nocardioform and related taxa require clarification. The most characteristic polar lipids of actinomycetes are the phosphatidylinositol mannosides (PIMs); a few mycobacteria contain major amounts of phosphatidylinositol dimannosides (PIDMs) with three or four fatty acid residues in each molecule co-occurring with lipids having up to five mannose units (6, 35). Phosphatidylinositol monomannosides have been reported from Nocardia leishmanii (501, Nocardia coeliaca (49), Nocardia polychromogenes (17, 481, Nocardia asteroides, Nocardia caviae, and strains labeled Nocardia erythropolis and Nocardia farcinica (37). However, another report (19) highlighted the presence of PIDMs in strains of N . coeliaca and N . potychromogenes. In a more extensive investigation (22) of the value of phospholipids in the taxonomy of coryneform and nocardioform bacteria, the number of mannose units in the PIMs was not determined. In the present study, the polar lipid patterns of strains of Corynebacterium, Mycobacterium, Nocardia, Gordona, and the "rhodochrous" complex (11) were compared and the PIMs of representative nocardiae were examined in more detail. Two strains of Bacterionema matruchotii, recently shown to contain fatty and mycolic acids (la) similar t o those of Corynebacterium, were also studied. MATERIALS AND METHODSStrains and growth conditions. Details of the strains and their sources are given in Table 1. All cultures were maintained routinely on yeast extract agar a t room temperature.The mycobacteria, nocardiae, and gordonae were grown in shake culture at 30°C for 2 to 5 days in modified Sauton medium (33) a...

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“…Cyclopropane fatty acids, the most prevalent of the cyclic fatty acids, are widely distributed among both Gram-positive and Gram-negative bacteria, including Brucellaceae, Clostridia, Enterobacteria, Lactobacilli, and Streptococci 4,44 , cis-11,12-Methyleneoctanoic (lactobacillic) acid 6, and cis-9,10-methylenehexadecanoic acid are the most commonly found cyclopropanoid acids in bacteria. An unusual fatty acid containing six cyclopropane rings was recently isolated from Streptomyces sp.…”

Section: Resultsmentioning

confidence: 99%

Identification of Cyclopropyl Fatty Acids in Walnut (Juglans Regia L.) Oil

Hanŭs¹,

Goldshlag²,

Dembitsky³

2008

BIOMED PAP

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Aim: Identifi cation of cyclopropyl fatty acids in walnut oil. Method: GC/MS method was developed for the determination of eight cyclopropyl fatty acids in walnut (Juglans regia) oil.Results: Monocyclopropane acids: methyl 9-cyclopropyl-nonanoate, 6,7-methylene-, 8,9-methylene-, 9,10-methylene-, 11,12-methylene octadecanoates, and dicyclic acid -methyl 9,10,12,13-dimethylene octadecanoate, tricyclic acid -methyl 9,10,12,13,15,16-trimethylene octadecanoate, and unsaturated -methyl 2-octylcyclopropene-1-octanoate were detected in walnut oil by GC-MS and their mass spectra studied. Four cyclic fatty acids were identifi ed for the fi st time in seed oils.Conclusions: Eight cyclopropyl fatty acids were detected in the Mediterranean nuts for the fi rst time.

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Comparative Aspects of Bacterial Lipids

Cited by 173 publications

References 261 publications

Polyunsaturated fatty acids in marine bacteria — a dogma rewritten

Polyunsaturated fatty acids in marine bacteria — a dogma rewritten

Polar Lipid Composition in the Classification of Nocardia and Related Bacteria

Identification of Cyclopropyl Fatty Acids in Walnut (Juglans Regia L.) Oil

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