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De Rosa S, Kamenarska Z, Bankova V, Stefanov K, Dimitrova-Konaklieva S, Najdenski H, Tzevtkova I, Popov S. Chemical composition and biological activities of the Black Sea algae Polysiphonia denudata (Dillw.) Kutz. and Polysiphonia denudata f. fragilis (Sperk) Woronich. Z NATURFORSCH C 2001; 56:1008-14. [PMID: 11837652 DOI: 10.1515/znc-2001-11-1218] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The two investigated algae had almost identical sterol composition, but there were significant differences in the composition of the polar components and especially in the composition of the volatiles. P. denudata f. fragilis extracts possessed a stronger biological activity (antibacterial, antifungal and toxicity against Artemia salina). Despite the minute morphological differences between the two algae, we recommend P. denudata f. fragilis to be regarded as P. denudata subsp. fragilis.
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Affiliation(s)
- S De Rosa
- Istituto di Chimica Biomolecolare, CNR, Pozzuoli, Napoli, Italy.
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De Rosa S, De Caro S, Tommonaro G, Slantchev K, Stefanov K, Popov S. Development in a primary cell culture of the marine sponge Ircinia muscarum and analysis of the polar compounds. Mar Biotechnol (NY) 2001; 3:281-286. [PMID: 14961366 DOI: 10.1007/s10126-001-0001-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
We have established a primary cell culture of the marine demosponge Ircinia muscarum. The culture was started from a cell suspension obtained by a combination of mechanical chemical means. Microbial contamination was controlled by the use of a pool of antibiotics. Optical density, rather than hemocytometer count, is suggested to monitor the cellular growth. Analysis of the chemical composition of I. muscarum cells revealed absence of sterols, showing that the cells were unable to biosynthesize sterols. When the medium was supplemented with cholesterol an increase of about 70% in the number of cells was observed. These results suggest that the classic mammalian nutrient medium was not satisfactory for I. muscarum cell growth, and sterols were needed to satisfy the membrane requirements.
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Affiliation(s)
- S De Rosa
- Istituto per la Chimica di Molecole di Interesse Biologico, CNR, via Toiano 6, 80072 Arco Felice, Naples, Italy.
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Carballeira NM, Miranda C, Lozano CM, Nechev JT, Ivanova A, Ilieva M, Tzvetkova I, Stefanov K. Characterization of novel methyl-branched chain fatty acids from a halophilic Bacillus species. J Nat Prod 2001; 64:256-259. [PMID: 11430016 DOI: 10.1021/np000494d] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The 4-methylated fatty acids 4,9-dimethyldecanoic, 4,11-dimethyldodecanoic, 4,10-dimethyldodecanoic, and 4,13-dimethyltetradecanoic acid as well as the 2-methylated fatty acids 2,13-dimethyltetradecanoic and 2,12-dimethyltetradecanoic acid were identified for the first time in nature in the halophilic bacterium Bacillus sp. isolated from the salt pans of Burgas in Bulgaria. The principal fatty acids in this bacterium were a series of iso-anteiso fatty acids with chain lengths between C11 and C19, but an interesting series of linear alkylbenzene fatty acids with chain lengths between C10 and C14, such as 12-phenyldodecanoic acid, were also identified. The novel 4-methylated fatty acids were characterized using a combination of GC-MS and chemical transformations such as N-acylpyrrolidide derivatization. The 2-methylated fatty acids were also identified by GC-MS and gas chromatographic coelution with synthetic samples. The novel methyl-branched fatty acids probably originated from the selective incorporation of methylmalonyl-CoA by one of the fatty acid-synthesizing enzymes of the bacterium.
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Affiliation(s)
- N M Carballeira
- Department of Chemistry, University of Puerto Rico, P.O. Box 23346, San Juan, Puerto Rico 00931.
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Carballeira NM, Guzmán A, Nechev JT, Lahtchev K, Ivanova A, Stefanov K. Unusual lipid composition of a Bacillus sp. isolated from Lake Pomorie in Bulgaria. Lipids 2000; 35:1371-5. [PMID: 11201999 DOI: 10.1007/s11745-000-0654-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
The lipid composition of a Bacillus sp., isolated from Lake Pomorie in Bulgaria, was unusual and consisted of 26 different fatty acids between C12 and C26, with anteiso C15-C17 saturated fatty acids predominating. The furan fatty acid, 10,13-epoxy-11-methyloctadeca-10,12-dienoic acid, was also identified, a new finding for this genus. The hydrocarbons consisted of 30 different monounsaturated hydrocarbons, between C25 and C30, with the iso-iso, iso-anteiso, anteiso-anteiso, iso-normal, and anteiso-normal methyl branching for odd-numbered chains, and the iso-iso, iso-anteiso, iso-normal, and anteiso-normal methyl branching for even-numbered chains. The double bond positions in these hydrocarbons were determined by dimethyl disulfide derivatization followed by GC-MS, and the double-bond cis configuration was confirmed by infrared spectroscopy. Some previously unknown hydrocarbons in bacteria, such as (Z)-3,21-dimethyl-9-tricosene, (Z)-3,21-dimethyl-10-tricosene, (Z)-2,24-dimethyl-11-pentacosene, and (Z)-2,25-dimethyl-13-hexacosene were identified. Sterols were detected and were based on the sitosterol nucleus.
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Affiliation(s)
- N M Carballeira
- Department of Chemistry, University of Puerto Rico, San Juan 00931, USA.
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Carballeira NM, Pagán M, Shalabi F, Nechev JT, Lahtchev K, Ivanova A, Stefanov K. Two novel iso-branched octadecenoic acids from a Micrococcus species. J Nat Prod 2000; 63:1573-1575. [PMID: 11087614 DOI: 10.1021/np000305r] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The novel fatty acids 16-methyl-6(Z)-heptadecenoic acid and 16-methyl-8(Z)-heptadecenoic acid were identified for the first time in nature in a species of the bacterium Micrococcus isolated from Lake Pomorie in Bulgaria. The principal fatty acids in this bacterium were a series of iso-anteiso fatty acids with chain lengths between C(14) and C(24), while the most interesting series of monounsaturated fatty acids was a family of Delta(6) fatty acids with chain lengths between C(14) and C(17). The novel compounds were characterized using a combination of GC-MS and chemical transformations, such as dimethyl disulfide derivatization and catalytic hydrogenation. The results established for the first time a bacterial origin for some of these Delta(6) fatty acids.
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Affiliation(s)
- N M Carballeira
- Department of Chemistry, University of Puerto Rico, P.O. Box 23346, San Juan, Puerto Rico 00931, USA.
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Abstract
Eighteen sterols were identified in Botryllus schlosseri, stanols being the main sterols. The sterol composition is in agreement with our recent paper on taxonomic separation of tunicates into three groups. Again we found in invertebrates of the Black Sea sterols with a (22Z)-double bond. This confirms the presence of such sterols in nature. The composition of the phospholipids appeared to be complex, and twelve groups of them were identified in Botryllus schlosseri. The main representatives of phospholipids appeared to be phosphatidylcholine and phosphatidylethanolamine. Only four volatile compounds were identified, which is unusual for marine invertebrates.
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Affiliation(s)
- K Slantchev
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Sofia
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De Rosa S, Milone A, Kujumgiev A, Stefanov K, Nechev I, Popov S. Metabolites from a marine bacterium Pseudomonas/Alteromonas, associated with the sponge Dysidea fragilis. Comp Biochem Physiol B Biochem Mol Biol 2000; 126:391-6. [PMID: 11007181 DOI: 10.1016/s0305-0491(00)00208-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
The lipophylic extract from a Black Sea bacterium, associated with the sponge Dysidea fragilis, was investigated. Saturated hydrocarbons and fatty acids of the lipids were identified. The concentrations of the polycyclic compounds appeared to be negligible. The main components appeared to be phosphatidyl ethanolamine, followed by phosphatidyl serine. The first was investigated by FAB mass spectrometry and a series of molecular species partially identified.
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Affiliation(s)
- S De Rosa
- Istituto per la Chimica di Molecole di Interesse Biologico, CNR, Arco Felice, Naples, Italy.
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Serkedjieva J, Konaklieva M, Dimitrova-Konaklieva S, Ivanova V, Stefanov K, Popov S. Antiinfluenza virus effect of extracts from marine algae and invertebrates. Z NATURFORSCH C 2000; 55:87-93. [PMID: 10739106 DOI: 10.1515/znc-2000-1-217] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Sixty products, derived from marine organisms, typical of the Bulgarian Black Sea coast, were examined for inhibitory activity on the reproduction of influenza viruses in tissue cultures. The antiviral effect was investigated by the reduction of virus infectivity. Using representative strains of influenza virus it was shown that apparently the inhibitory effect was strain-specific. The most effective products were further studied in fertile hen's eggs and in experimental influenza infection in white mice.
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Affiliation(s)
- J Serkedjieva
- Institute of Microbiology, Bulgarian Academy of Sciences, Sofia.
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Carballeira NM, Sostre A, Stefanov K, Popov S, Kujumgiev A, Dimitrova-Konaklieva S, Tosteson CG, Tosteson TR. The fatty acid composition of a Vibrio alginolyticus associated with the alga Cladophora coelothrix. Identification of the novel 9-methyl-10-hexadecenoic acid. Lipids 1997; 32:1271-5. [PMID: 9438237 DOI: 10.1007/s11745-006-0163-4] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The fatty acid composition of a new strain of Vibrio alginolyticus, found in the alga Cladophora coelothrix, was studied. Among 38 different fatty acids, a new fatty acid, 9-methyl-10-hexadecenoic acid and the unusual 11-methyl-12-octadecenoic acid, were identified. Linear alkylbenzene fatty acids, such as 10-phenyldecanoic acid, 12-phenyldodecanoic acid and 14-phenyltetradecanoic acid, were also found in V. alginolyticus. The alga contained 43% saturated fatty acids, and 28% C16-C20 polyunsaturated fatty acids of the n-3 and n-6 families.
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Affiliation(s)
- N M Carballeira
- Department of Chemistry, University of Puerto Rico, San Juan, Puerto Rico 00931, USA.
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Carballeira NM, Shalabi F, Stefanov K, Dimitrov K, Popov S, Kujumgiev A, Andreev S. Comparison of the fatty acids of the tunicate Botryllus schlosseri from the Black Sea with two associated bacterial strains. Lipids 1995; 30:677-9. [PMID: 7564924 DOI: 10.1007/bf02537006] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The fatty acid composition of the tunicate Botryllus schlosseri and of two bacterial strains found within the tunicate, namely Vibrio parahaemolyticus and of an associated but previously unreported gram positive cocci were studied. The polyunsaturated fatty acids 6,9,12-octadecatrienoic acid, 5,8,11,14,17-eicosapentaenoic acid, and 4,7,10,13,16,19-docosahexaenoic acid were particularly abundant in B. schlosseri and were not detected in the two bacterial strains found in the tunicate. The iso/anteiso pair, 13-methyltetradecanoic acid and 12-methyltetradecanoic acid, were the principal fatty acids in the gram positive cocci, and the 9- and 11-hexadecenoic acids were particularly abundant in V. parahaemolyticus. The diunsaturated fatty acid 9,12-octadecadienoic acid was also shown to be present in V. parahaemolyticus. The fatty acid composition of a third bacterial strain, characterized as either a Pseudomonas or an Alteromonas species, and shown to be present only in the sea water from the Black Sea and not in B. schlosseri, is also reported. This is the first investigation on fatty acids from Black Sea bacteria.
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Affiliation(s)
- N M Carballeira
- Department of Chemistry, University of Puerto Rico, San Juan 00931-3346
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Nikolava-Damyanova B, Stefanov K, Seizova K, Popov S. Extraction and rapid identification of law molecular weight compounds from marine organisms. ACTA ACUST UNITED AC 1992. [DOI: 10.1016/0305-0491(92)90398-b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Dembitsky VM, Kashin AG, Stefanov K. Comparative investigation of phospholipids and fatty acids of freshwater molluscs from the Volga river basin. Comp Biochem Physiol B 1992; 102:193-8. [PMID: 1526128 DOI: 10.1016/0305-0491(92)90294-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
1. Four Gastropoda species and two Bivalvia species from the Volga river basin were examined. 2. Distribution of phospholipids in the molluscs was studied by qualitative and quantitative micro thin-layer chromatography. 3. Major phospholipid classes, phosphatidylethanolamine and phosphatidylcholine, were found to contain plasmalogens. 4. One mollusc species notably contained 67 fatty acids including 25 saturated (both iso and anteiso), 24 monoenoic, five dienoic, four trienoic and eight polyenoic compounds identified by capillary gas chromatography; fatty acid contents in the other studied species were considerably lower. 5. Relatively high concentrations of nonmethylene-interrupted fatty acids were detected in certain examined species.
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Affiliation(s)
- V M Dembitsky
- Natural Compounds Chemistry Laboratory, Russian Academy of Sciences, Togliatti, C.I.S
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Christie W, Brechany EY, Stefanov K. Silver ion high-performance liquid chromatography and gas chromatography—mass spectrometry in the analysis of complex fatty acid mixtures: application to marine invertebrates. Chem Phys Lipids 1988. [DOI: 10.1016/0009-3084(88)90123-5] [Citation(s) in RCA: 63] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Vaver VA, Prokazova NV, Rozynov BV, Ushakov AN, Stefanov K. [Diol cholineplasmalogens--a new type of rat liver phospholipid]. Dokl Akad Nauk SSSR 1972; 205:477-80. [PMID: 5050967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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Bergelson LD, Vaver VA, Prokazova NV, Ushakov AN, Rozynov BV, Stefanov K, Ilukhina LI, Simonova TN. Diol lipids. XXII. The occurrence of diol choline phosphatides in rat liver. Biochim Biophys Acta 1972; 260:571-82. [PMID: 5028115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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