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Journal articles on the topic 'Cyclopropane fatty acid'

Author: Grafiati

Published: 10 December 2022

Last updated: 31 July 2025

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1

Härtig, Claus, Norbert Loffhagen, and Hauke Harms. "Formation of trans Fatty Acids Is Not Involved in Growth-Linked Membrane Adaptation of Pseudomonas putida." Applied and Environmental Microbiology 71, no. 4 (2005): 1915–22. http://dx.doi.org/10.1128/aem.71.4.1915-1922.2005.

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ABSTRACT Fatty acid compositions in growing and resting cells of several strains of Pseudomonas putida (P8, NCTC 10936, and KT 2440) were studied, with a focus on alterations of the saturation degree, cis-trans isomerization, and cyclopropane formation. The fatty acid compositions of the strains were very similar under comparable growth conditions, but surprisingly, and contrary to earlier reports, trans fatty acids were not found in either exponentially growing cells or stationary-phase cells. During the transition from growth to the starvation state, cyclopropane fatty acids were preferentia

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2

Chao, Jerry, Gideon M. Wolfaardt, and Michael T. Arts. "Characterization of Pseudomonas aeruginosa fatty acid profiles in biofilms and batch planktonic cultures." Canadian Journal of Microbiology 56, no. 12 (2010): 1028–39. http://dx.doi.org/10.1139/w10-093.

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The fatty acid composition of Pseudomonas aeruginosa PAO1 was compared between biofilm and batch planktonic cultures. Strain PAO1 biofilms were able to maintain a consistent fatty acid profile for up to 6 days, whereas strain PAO1 batch planktonic cultures showed a gradual loss of cis-monounsaturated fatty acids over 4 days. Biofilms exhibited a greater proportion of hydroxy fatty acids but a lower proportion of both cyclopropane fatty acids and saturated fatty acids (SAFAs). SAFAs with ≥16 carbons, in particular, decreased in biofilms when compared with that in batch planktonic cultures. A re

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3

Kim, Gwang-Woo, Jae-Man Sim, Yutaka Itabashi, Min-Jeong Jung, and Joon-Young Jun. "Occurrence of Cis-11,12-Methylene-Hexadecanoic Acid in the Red Alga Solieria pacifica (Yamada) Yoshida." Molecules 26, no. 8 (2021): 2286. http://dx.doi.org/10.3390/molecules26082286.

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Fatty acids in marine algae have attracted the attention of natural chemists because of their biological activity. The fatty acid compositions of the Solieriaceae families (Rhodophyceae, Gaigartinales) provide interesting information that unusual cyclic fatty acids have been occasionally found. A survey was conducted to profile the characteristic fatty acid composition of the red alga Solieria pacifica (Yamada) Yoshida using gas chromatography-mass spectrometry (GC-MS), infrared spectroscopy (IR), and proton nuclear magnetic resonance spectroscopy (1H-NMR). In S. pacifica, two cyclopentyl fatt

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4

Zhao, Yinsuo, Lucia A. Hindorff, Amy Chuang, et al. "Expression of a Cloned Cyclopropane Fatty Acid Synthase Gene Reduces Solvent Formation in Clostridium acetobutylicum ATCC 824." Applied and Environmental Microbiology 69, no. 5 (2003): 2831–41. http://dx.doi.org/10.1128/aem.69.5.2831-2841.2003.

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ABSTRACT The cyclopropane fatty acid synthase gene (cfa) of Clostridium acetobutylicum ATCC 824 was cloned and overexpressed under the control of the clostridial ptb promoter. The function of the cfa gene was confirmed by complementation of an Escherichia coli cfa-deficient strain in terms of fatty acid composition and growth rate under solvent stress. Constructs expressing cfa were introduced into C. acetobutylicum hosts and cultured in rich glucose broth in static flasks without pH control. Overexpression of the cfa gene in the wild type and in a butyrate kinase-deficient strain increased th

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5

Shields, Samuel, Peter Buist, and Jeffrey Manthorpe. "Asymmetric and Regiospecific Synthesis of Isotopically Labelled Cyclopropane Fatty Acid (9R,10S)-Dihydrosterculic Acid: Overcoming Spontaneous Protonation During Lithium-Sulfoxide Exchange." SynOpen 02, no. 02 (2018): 0168–75. http://dx.doi.org/10.1055/s-0036-1591976.

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The total synthesis of isotopically labelled (9R,10S)-dihydrosterculic acid, a usual cyclopropane fatty acid with biologically relevant toxicity upon desaturation in vivo, is reported. A diastereoselective Corey–Chaykovsky reaction was employed to form the cyclopropane ring. Rapid quenching of a lithium-sulfoxide exchange was required to achieve the requisite high levels of deuterium incorporation.

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6

Lolli, Veronica, Angela Marseglia, Gerardo Palla, Emanuela Zanardi, and Augusta Caligiani. "Determination of Cyclopropane Fatty Acids in Food of Animal Origin by 1H NMR." Journal of Analytical Methods in Chemistry 2018 (2018): 1–8. http://dx.doi.org/10.1155/2018/8034042.

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Cyclopropane fatty acids (CPFAs) are unusual fatty acids of microbial origin, recently detected in milk and dairy products. CPFAs have been demonstrated to be interesting molecular markers for authentication of dairy products obtained without ensiled feeds. Moreover, they can also be recognized as a new secondary component of human diet. Information is lacking on the presence of cyclic fatty acids in other food sources. Cyclopropane fatty acids have been detected by GC-MS analysis in cheese and other animal fats in concentration ranging from 200 to 1000 mg/kg fat, but in some cases, the comple

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7

BROWER, A., N. LUCERO, O. OKWUMABUA, et al. "Newly identified variability inBrucella canisfatty-acid content is associated with geographical origin." Epidemiology and Infection 141, no. 4 (2012): 852–58. http://dx.doi.org/10.1017/s0950268812001240.

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SUMMARYThis study compared the fatty-acid profiles ofBrucella canisblood culture isolates obtained from infected dogs in the UK, Germany, Japan, South Africa, Peru, Mexico, Colombia, and Argentina, and from a human clinical case in Argentina, to a bank of isolates obtained from canine outbreaks in the USA. Analysis of a total of 42B. canisisolates and one reference strain found a marked variation within the species. Fatty-acid analysis showed that only the isolates from Argentina, Colombia, and Mexico, which included the humanB. canisisolate, contained a specific fatty acid, 19:0 cyclopropane

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8

Ordóñez, J. A., L. de la Hoz, J. I. Azcona, and B. Sanz. "Effect of growth temperature on lipid composition of Streptococcus faecium." Canadian Journal of Microbiology 31, no. 4 (1985): 361–66. http://dx.doi.org/10.1139/m85-069.

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The effect of growth temperature on the lipid and fatty acid composition of Streptococcus faecium has been studied. No differences in the qualitative composition of S. faecium lipids were observed. In all isolated fractions (neutral lipids, glycolipids, and phospholipids plus other polar lipids), the major fatty acids were palmitic (C-16:0), palmitoleic (C-16:1), octadecenoic (C-18:1), and cyclopropane (C-19:0). Changes in the fatty acid composition of the different fractions were observed which depended on growth temperature; the most significant one was the decrease of octadecenoic acid and

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9

Buist, Peter H., and Judy M. Findlay. "The biosynthesis of cyclopropane fatty acids. III. pH Dependence of methyl hydrogen exchange: gas chromatographic – mass spectral studies." Canadian Journal of Chemistry 63, no. 4 (1985): 971–74. http://dx.doi.org/10.1139/v85-161.

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L-Methionine-methyl-d3 was administered to Lactobacillusplantarum and the deuterium content of the biosynthetic lactobacillic acid examined by gc–ms. By conducting the biosynthetic experiments in media of varying pH, it was shown that the production of d1-cyclopropane fatty acid increases with decreasing pH. Factors such as culture age and total activity of cyclopropane synthetase do not directly influence the extent of exchange.

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10

Yu, Xiao-Hong, Richa Rawat, and John Shanklin. "Characterization and analysis of the cotton cyclopropane fatty acid synthase family and their contribution to cyclopropane fatty acid synthesis." BMC Plant Biology 11, no. 1 (2011): 97. http://dx.doi.org/10.1186/1471-2229-11-97.

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11

Kochan, Kamila, Huadong Peng, Eunice S. H. Gwee, Ekaterina Izgorodina, Victoria Haritos, and Bayden R. Wood. "Raman spectroscopy as a tool for tracking cyclopropane fatty acids in genetically engineeredSaccharomyces cerevisiae." Analyst 144, no. 3 (2019): 901–12. http://dx.doi.org/10.1039/c8an01477a.

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12

Bao, Xiaoming, Jay J. Thelen, Gustavo Bonaventure, and John B. Ohlrogge. "Characterization of Cyclopropane Fatty-acid Synthase fromSterculia foetida." Journal of Biological Chemistry 278, no. 15 (2003): 12846–53. http://dx.doi.org/10.1074/jbc.m212464200.

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13

Oyola, Samuel O., Krystal J. Evans, Terry K. Smith, et al. "Functional Analysis of Leishmania Cyclopropane Fatty Acid Synthetase." PLoS ONE 7, no. 12 (2012): e51300. http://dx.doi.org/10.1371/journal.pone.0051300.

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14

Saborido Basconcillo, Libia, Rahat Zaheer, Turlough M. Finan, and Brian E. McCarry. "Cyclopropane fatty acyl synthase in Sinorhizobium meliloti." Microbiology 155, no. 2 (2009): 373–85. http://dx.doi.org/10.1099/mic.0.022608-0.

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Cyclopropane fatty acyl synthases (CFA synthases) are enzymes that catalyse the addition of a methylene group across cis double bonds of monounsaturated fatty acyl chains in lipids. We have investigated the function of two putative genes, cfa1 and cfa2, proposed to code for CFA synthases in Sinorhizobium meliloti. Total fatty acid composition and fatty acid distributions within lipid classes for wild-type and cfa1 and cfa2 mutant strains grown under Pi starvation and in acidic culture conditions were obtained by GC/MS and by infusion ESI/MS/MS, respectively. For wild-type cells and the cfa1 mu

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15

Yu, X. H., R. R. Prakash, M. Sweet, and J. Shanklin. "Coexpressing Escherichia coli Cyclopropane Synthase with Sterculia foetida Lysophosphatidic Acid Acyltransferase Enhances Cyclopropane Fatty Acid Accumulation." PLANT PHYSIOLOGY 164, no. 1 (2013): 455–65. http://dx.doi.org/10.1104/pp.113.230953.

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16

Matsuoka, Satomi, Tamao Saito, Hidekazu Kuwayama, Naoki Morita, Hiroshi Ochiai, and Mineko Maeda. "MFE1, a Member of the Peroxisomal Hydroxyacyl Coenzyme A Dehydrogenase Family, Affects Fatty Acid Metabolism Necessary for Morphogenesis in Dictyostelium spp." Eukaryotic Cell 2, no. 3 (2003): 638–45. http://dx.doi.org/10.1128/ec.2.3.638-645.2003.

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ABSTRACT β-Oxidation of long-chain fatty acids and branched-chain fatty acids is carried out in mammalian peroxisomes by a multifunctional enzyme (MFE) or d-bifunctional protein, with separate domains for hydroxyacyl coenzyme A (CoA) dehydrogenase, enoyl-CoA hydratase, and steroid carrier protein SCP2. We have found that Dictyostelium has a gene, mfeA, encoding MFE1 with homology to the hydroxyacyl-CoA dehydrogenase and SCP2 domains. A separate gene, mfeB, encodes MFE2 with homology to the enoyl-CoA hydratase domain. When grown on a diet of bacteria, Dictyostelium cells in which mfeA is disrup

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17

Barkan, Daniel, Vivek Rao, George D. Sukenick, and Michael S. Glickman. "Redundant Function of cmaA2 and mmaA2 in Mycobacterium tuberculosis cis Cyclopropanation of Oxygenated Mycolates." Journal of Bacteriology 192, no. 14 (2010): 3661–68. http://dx.doi.org/10.1128/jb.00312-10.

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ABSTRACT The Mycobacterium tuberculosis cell envelope contains a wide variety of lipids and glycolipids, including mycolic acids, long-chain branched fatty acids that are decorated by cyclopropane rings. Genetic analysis of the mycolate methyltransferase family has been a powerful approach to assign functions to each of these enzymes but has failed to reveal the origin of cis cyclopropanation of the oxygenated mycolates. Here we examine potential redundancy between mycolic acid methyltransferases by generating and analyzing M. tuberculosis strains lacking mmaA2 and cmaA2, mmaA2 and cmaA1, or m

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18

Amiri Moghaddam, Jamshid, Antonio Dávila-Céspedes, Stefan Kehraus, et al. "Cyclopropane-Containing Fatty Acids from the Marine Bacterium Labrenzia sp. 011 with Antimicrobial and GPR84 Activity." Marine Drugs 16, no. 10 (2018): 369. http://dx.doi.org/10.3390/md16100369.

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Bacteria of the family Rhodobacteraceae are widespread in marine environments and known to colonize surfaces, such as those of e.g., oysters and shells. The marine bacterium Labrenzia sp. 011 is here investigated and it was found to produce two cyclopropane-containing medium-chain fatty acids (1, 2), which inhibit the growth of a range of bacteria and fungi, most effectively that of a causative agent of Roseovarius oyster disease (ROD), Pseudoroseovarius crassostreae DSM 16950. Additionally, compound 2 acts as a potent partial, β-arrestin-biased agonist at the medium-chain fatty acid-activated

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19

Debedat, Jean, Lorena Pastor, Jordan G. Pitman, Kristine Griffett, Trina K. Knotts, and Sean H. Adams. "Not All Saturated Fatty Acids Are Equal – The Case of Cyclopropane Fatty Acid Xenolipids." Current Developments in Nutrition 9 (May 2025): 106425. https://doi.org/10.1016/j.cdnut.2025.106425.

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20

Villorbina, Gemma, Lidia Roura, Francisco Camps, Jesús Joglar та Gemma Fabriàs. "Enzymatic Desaturation of Fatty Acids: Δ11Desaturase Activity on Cyclopropane Acid Probes". Journal of Organic Chemistry 68, № 7 (2003): 2820–29. http://dx.doi.org/10.1021/jo0267100.

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21

Ozbek, A., and O. Aktas. "Identification of Three Strains of Mycobacterium Species Isolated from Clinical Samples Using Fatty Acid Methyl Ester Profiling." Journal of International Medical Research 31, no. 2 (2003): 133–40. http://dx.doi.org/10.1177/147323000303100210.

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The cellular fatty acid profiles of 67 strains belonging to three different species of the genus Mycobacterium were determined by gas chromatography of the fatty acid methyl esters, using the MIDI Sherlock® Microbial Identification System (MIS). The species M. tuberculosis, M. xenopi and M. avium complex were clearly distinguishable and could be identified based on the presence and concentrations of 12 fatty acids: 14:0, 15:0, 16:1ω7c, 16:1ω6c, 16:0, 17:0, 18:2ω6,9c, 18:1ω9c, 18:0, 10Me-18:0 tuberculostearic acid, alcohol and cyclopropane. Fatty acid analysis showed that there is great homogen

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22

Ma, Yulong, Chunli Pan, and Qihai Wang. "Crystal structure of bacterial cyclopropane-fatty-acyl-phospholipid synthase with phospholipid." Journal of Biochemistry 166, no. 2 (2019): 139–47. http://dx.doi.org/10.1093/jb/mvz018.

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AbstractThe lipids containing cyclopropane-fatty-acid (CFA) protect bacteria from adverse conditions such as acidity, freeze-drying desiccation and exposure to pollutants. CFA is synthesized when cyclopropane-fatty-acyl-phospholipid synthase (CFA synthase, CFAS) transfers a methylene group from S-adenosylmethionine (SAM) across the cis double bonds of unsaturated fatty acyl chains. Here, we reported a 2.7-Å crystal structure of CFAS from Lactobacillus acidophilus. The enzyme is composed of N- and C-terminal domain, which belong to the sterol carrier protein and methyltransferase superfamily, r

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23

Coloe, P. J., J. F. Slattery, P. Cavanaugh, and J. Vaughan. "The cellular fatty acid composition ofCampylobacterspecies isolated from cases of enteritis in man and animals." Journal of Hygiene 96, no. 2 (1986): 225–29. http://dx.doi.org/10.1017/s0022172400065992.

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SUMMARYThe cellular fatty acid composition of 41 strains of suspectedCampylobacter jejuni, 23 from human cases of gastroenteritis and 18 from animals, was examined by gas-liquid chromatography. Three of the 23 human isolates and 2 of 18 animal isolates did not contain 19:0 cyclopropane fatty acid and were identified asC. laridis. The remaining 36 strains had cellular fatty acid profiles consistent withC. jejunibut could be divided into three groups on the ratio of the concentration of 18:1 and 19:0 eycloproprane. Most human isolates (85%) were in groups II or III whereas most animal isolates (

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24

Shah, Sayali, Jonathan M. White, and Spencer J. Williams. "Total syntheses of cis-cyclopropane fatty acids: dihydromalvalic acid, dihydrosterculic acid, lactobacillic acid, and 9,10-methylenehexadecanoic acid." Org. Biomol. Chem. 12, no. 46 (2014): 9427–38. http://dx.doi.org/10.1039/c4ob01863j.

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25

Muñoz-Rojas, Jesús, Patricia Bernal, Estrella Duque, Patricia Godoy, Ana Segura, and Juan-Luis Ramos. "Involvement of Cyclopropane Fatty Acids in the Response of Pseudomonas putida KT2440 to Freeze-Drying." Applied and Environmental Microbiology 72, no. 1 (2006): 472–77. http://dx.doi.org/10.1128/aem.72.1.472-477.2006.

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ABSTRACT Pseudomonas putida KT2440, a saprophytic soil bacterium that colonizes the plant root, is a suitable microorganism for the removal of pollutants and a stable host for foreign genes used in biotransformation processes. Because of its potential use in agriculture and industry, we investigated the conditions for the optimal preservation of the strain and its derivatives for long-term storage. The highest survival rates were achieved with cells that had reached the stationary phase and which had been subjected to freeze-drying in the presence of disaccharides (trehalose, maltose, and lact

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26

Dionisi, Fabiola, Pierre-Alain Golay, Marina Elli, and Lauren B. Fay. "Stability of cyclopropane and conjugated linoleic acids during fatty acid quantification in lactic acid bacteria." Lipids 34, no. 10 (1999): 1107–15. http://dx.doi.org/10.1007/s11745-999-0462-8.

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27

ZAVAGLIA, ANDREA GÓMEZ, EDGARDO A. DISALVO, and GRACIELA L. DE ANTONI. "Fatty acid composition and freeze–thaw resistance in lactobacilli." Journal of Dairy Research 67, no. 2 (2000): 241–47. http://dx.doi.org/10.1017/s0022029900004179.

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The fatty acid composition and freeze–thaw resistance of eight strains of thermophilic lactobacilli were studied. Seven of these contained the same polar and neutral lipids, the five major components making up 90% of the cellular fatty acid pool being 14[ratio ]0, 16[ratio ]0, 16[ratio ]1, 18[ratio ]1 and C19 cyclopropane (cyc19[ratio ]0). Strain comparison by means of cluster analysis based on the fatty acid ratios using the overlap coefficient revealed two well defined clusters. One was formed by three strains of species Lactobacillus delbrueckii subsp. lactis and Lb. delbrueckii subsp. delb

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28

Xu, Wei, Sumit Mukherjee, Yu Ning, Fong-Fu Hsu, and Kai Zhang. "Cyclopropane fatty acid synthesis affects cell shape and acid resistance in Leishmania mexicana." International Journal for Parasitology 48, no. 3-4 (2018): 245–56. http://dx.doi.org/10.1016/j.ijpara.2017.09.006.

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29

Hari, Sanjay B., Robert A. Grant, and Robert T. Sauer. "Structural and Functional Analysis of E. coli Cyclopropane Fatty Acid Synthase." Structure 26, no. 9 (2018): 1251–58. http://dx.doi.org/10.1016/j.str.2018.06.008.

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30

Kim, Bae Hoon, Seungki Kim, Hyeon Guk Kim, Jin Lee, In Soo Lee, and Yong Keun Park. "The formation of cyclopropane fatty acids in Salmonella enterica serovar Typhimurium." Microbiology 151, no. 1 (2005): 209–18. http://dx.doi.org/10.1099/mic.0.27265-0.

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The formation of cyclopropane fatty acid (CFA) and its role in the acid shock response in Salmonella enterica serovar Typhimurium (S. typhimurium) was investigated. Data obtained by GC/MS demonstrated that the CFA level in S. typhimurium increased upon its entry to the stationary phase, as in other bacteria. The cfa gene encoding CFA synthase was cloned, and mutants of the cfa gene were constructed by allelic exchange. A cfa mutant could not produce CFA and was sensitive to low pH. Introduction of a functional cfa gene into a cfa mutant cell made the mutant convert all unsaturated fatty acids

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31

Jiang, Wei, Chao Li, Yanjun Li, and Huadong Peng. "Metabolic Engineering Strategies for Improved Lipid Production and Cellular Physiological Responses in Yeast Saccharomyces cerevisiae." Journal of Fungi 8, no. 5 (2022): 427. http://dx.doi.org/10.3390/jof8050427.

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Microbial lipids have been a hot topic in the field of metabolic engineering and synthetic biology due to their increased market and important applications in biofuels, oleochemicals, cosmetics, etc. This review first compares the popular hosts for lipid production and explains the four modules for lipid synthesis in yeast, including the fatty acid biosynthesis module, lipid accumulation module, lipid sequestration module, and fatty acid modification module. This is followed by a summary of metabolic engineering strategies that could be used for enhancing each module for lipid production. In a

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32

Bao, X., S. Katz, M. Pollard, and J. Ohlrogge. "Carbocyclic fatty acids in plants: Biochemical and molecular genetic characterization of cyclopropane fatty acid synthesis of Sterculia foetida." Proceedings of the National Academy of Sciences 99, no. 10 (2002): 7172–77. http://dx.doi.org/10.1073/pnas.092152999.

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33

Shah, Sayali, Masahiro Nagata, Sho Yamasaki та Spencer J. Williams. "Total synthesis of a cyclopropane-fatty acid α-glucosyl diglyceride from Lactobacillus plantarum and identification of its ability to signal through Mincle". Chemical Communications 52, № 72 (2016): 10902–5. http://dx.doi.org/10.1039/c6cc05631h.

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34

He, Hongjun, Roger Gordon, and John A. Gow. "The effect of temperature on the fatty acids and isozymes of a psychrotrophic and two mesophilic species ofXenorhabdus, a bacterial symbiont of entomopathogenic nematodes." Canadian Journal of Microbiology 47, no. 5 (2001): 382–91. http://dx.doi.org/10.1139/w01-025.

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In the first part of this study, generation times relative to temperature, together with cardinal and conceptual temperatures, were determined for four strains of Xenorhabdus bacteria that represented three geographically distinct species. The data showed that the NF strain of Xenorhabdus bovienii, like the Umeå strain of the same species, is psychrotrophic, while Xenorhabdus sp. TX strain resembles Xenorhabdus nematophila All strain in being mesophilic. In the second part, the capacity of these bacteria to adapt to changes in temperature, shown by changes in fatty acid composition, was invest

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35

Courtois, Fabienne, Christine Guerard, Xavier Thomas, and Olivier Ploux. "Escherichia coli cyclopropane fatty acid synthase. Mechanistic and site-directed mutagenetic studies." European Journal of Biochemistry 271, no. 23-24 (2004): 4769–78. http://dx.doi.org/10.1111/j.1432-1033.2004.04441.x.

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Chang, Ying-Ying, and John E. Cronan. "Membrane cyclopropane fatty acid content is a major factor in acid resistance of Escherichia coli." Molecular Microbiology 33, no. 2 (1999): 249–59. http://dx.doi.org/10.1046/j.1365-2958.1999.01456.x.

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37

KU, KUO-LONG, JUI-LONG CHIOU, FANG-CHI LIU, and ROBIN Y. Y. CHIOU. "Advanced Gas Chromatographic–Mass Spectrometric Studies for Identification of the Cellular Octadecenoate Isomers and Changes of Fatty Acid Composition Induced by Ethanol Stress in Escherichia coli and Escherichia coli O157:H7." Journal of Food Protection 70, no. 3 (2007): 616–22. http://dx.doi.org/10.4315/0362-028x-70.3.616.

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Ethanol can be introduced to foods of various origins and is commonly used for surface disinfection. Low concentrations of residual ethanol may provide an opportunity for pathogens to adapt and grow. Change of cellular fatty acid composition is one of adaptation mechanisms enabling bacteria to grow under varied stresses. Since instrumental analyses of bacterial octadecenoate isomers are sophisticated, gas chromatographic analyses of the isomers, namely trans-9-octadecenoate, trans-11-octadecenoate, cis-9-octadecenoate, and cis-11-octadecenoate, and ethanol-induced formation of trans-9-octadece

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Dubois-Brissonnet, Florence, Murielle Naïtali, Akier Assanta Mafu, and Romain Briandet. "Induction of Fatty Acid Composition Modifications and Tolerance to Biocides inSalmonella entericaSerovar Typhimurium by Plant-Derived Terpenes." Applied and Environmental Microbiology 77, no. 3 (2010): 906–10. http://dx.doi.org/10.1128/aem.01480-10.

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ABSTRACTTo enhance food safety and stability, the food industry tends to use natural antimicrobials such as plant-derived compounds as an attractive alternative to chemical preservatives. Nonetheless, caution must be exercised in light of the potential for bacterial adaptation to these molecules, a phenomenon previously observed with other antimicrobials. The aim of this study was to characterize the adaptation ofSalmonella entericaserovar Typhimurium to sublethal concentrations of four terpenes extracted from aromatic plants: thymol, carvacrol, citral, and eugenol, or combinations thereof. Ba

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Lolli, Veronica, Margherita Dall’Asta, Daniele Del Rio, and Augusta Caligiani. "Identification of Cyclopropane Fatty Acids in Human Plasma after Controlled Dietary Intake of Specific Foods." Nutrients 12, no. 11 (2020): 3347. http://dx.doi.org/10.3390/nu12113347.

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Cyclopropane fatty acids (CPFAs) are an investigated class of secondary fatty acids of microbial origin recently identified in foods. Even though the dietary daily intake of this class of compounds it has been recently estimated as not negligible, to date, no studies specifically have investigated their presence in human plasma after consumption of CPFA-rich sources. Therefore, the aims of this study were (i) to test CPFAs concentration in human plasma, thus demonstrating their in vivo bioaccessibility and potential bioavailability, (ii) to investigate a dose-response relationship between medi

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Kolbeck, Sandra, Hermine Kienberger, Karin Kleigrewe, Maik Hilgarth, and Rudi F. Vogel. "Effect of high levels of CO2 and O2 on membrane fatty acid profile and membrane physiology of meat spoilage bacteria." European Food Research and Technology 247, no. 4 (2021): 999–1011. http://dx.doi.org/10.1007/s00217-020-03681-y.

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AbstractThe membrane is the major protective barrier separating the cell from the environment and is thus important for bacteria to survive environmental stress. This study investigates changes in membrane lipid compositions and membrane physiology of meat spoiling bacteria in response to high CO2 (30%) and O2 (70%) concentrations, as commonly used for modified atmosphere packaging of meat. Therefore, the fatty acid profile as well as membrane fluidity, permeability and cell surface were determined and correlated to the genomic settings of five meat spoiling bacteria Brochothrix (B.) thermosph

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Li, Ruoxin, Shovan Ganguli, and Robert A. Pascal. "Synthesis of sulfur-substituted phosphatidylethanolamines and inhibition of protozoan cyclopropane fatty acid synthase." Tetrahedron Letters 34, no. 8 (1993): 1279–82. http://dx.doi.org/10.1016/s0040-4039(00)91774-x.

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Palacios-Chaves, Leyre, Amaia Zúñiga-Ripa, Ana Gutiérrez, et al. "Identification and functional analysis of the cyclopropane fatty acid synthase of Brucella abortus." Microbiology 158, no. 4 (2012): 1037–44. http://dx.doi.org/10.1099/mic.0.055897-0.

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Yu, Xiao-Hong, Yuanheng Cai, Jin Chai, Jorg Schwender, and John Shanklin. "Expression of a Lychee PHOSPHATIDYLCHOLINE:DIACYLGLYCEROL CHOLINEPHOSPHOTRANSFERASE with an Escherichia coli CYCLOPROPANE SYNTHASE Enhances Cyclopropane Fatty Acid Accumulation in Camelina Seeds." Plant Physiology 180, no. 3 (2019): 1351–61. http://dx.doi.org/10.1104/pp.19.00396.

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Chen, Yuan Yao, and Michael G. Gänzle. "Influence of cyclopropane fatty acids on heat, high pressure, acid and oxidative resistance in Escherichia coli." International Journal of Food Microbiology 222 (April 2016): 16–22. http://dx.doi.org/10.1016/j.ijfoodmicro.2016.01.017.

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Petersen, SÃ¯Â¿Â½ren O., Peter Roslev, and Roland Bol. "Dynamics of a Pasture Soil Microbial Community after Deposition of Cattle Urine Amended with [13C]Urea." Applied and Environmental Microbiology 70, no. 11 (2004): 6363–69. http://dx.doi.org/10.1128/aem.70.11.6363-6369.2004.

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ABSTRACT Within grazed pastures, urine patches are hot spots of nitrogen turnover, since dietary N surpluses are excreted mainly as urea in the urine. This short-term experiment investigated 13C uptake in microbial lipids after simulated deposition of cattle urine at 10.0 and 17.1 g of urea C m−2. Confined field plots without or with cattle urine amendment were sampled after 4 and 14 days, and soil from 0- to 5-cm and 10- to 20-cm depths was analyzed for content and composition of phospholipid fatty acids (PLFAs) and for the distribution of urea-derived 13C among individual PLFAs. Carbon dioxi

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Chang, Ying-Ying, Johannes Eichel, and John E. Cronan. "Metabolic Instability of Escherichia coli Cyclopropane Fatty Acid Synthase Is Due to RpoH-Dependent Proteolysis." Journal of Bacteriology 182, no. 15 (2000): 4288–94. http://dx.doi.org/10.1128/jb.182.15.4288-4294.2000.

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ABSTRACT Cyclopropane fatty acids (CFAs) are generally synthesized as bacterial cultures enter stationary phase. In Escherichia coli, the onset of CFA synthesis results from increased transcription of cfa, the gene encoding CFA synthase. However, the increased level of CFA synthase activity is transient; the activity quickly declines to the basal level. We report that the loss of CFA activity is due to proteolytic degradation dependent on expression of the heat shock regulon. CFA synthase degradation is unaffected by mutations in the lon, clpP, andgroEL genes or by depletion of the intracellul

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Jones, Sara E., Kristi Whitehead, Delphine Saulnier, Carissa M. Thomas, James Versalovic, and Robert A. Britton. "Cyclopropane fatty acid synthase mutants of probiotic human-derivedLactobacillus reuteriare defective in TNF inhibition." Gut Microbes 2, no. 2 (2011): 69–79. http://dx.doi.org/10.4161/gmic.2.2.15282.

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Budin-Verneuil, AurÃ©lie, Emmanuelle Maguin, Yanick Auffray, S. Dusko Ehrlich, and Vianney Pichereau. "Transcriptional analysis of the cyclopropane fatty acid synthase gene ofLactococcus lactisMG1363 at low pH." FEMS Microbiology Letters 250, no. 2 (2005): 189–94. http://dx.doi.org/10.1016/j.femsle.2005.07.007.

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Loffhagen, N., C. Härtig, W. Geyer, M. Voyevoda, and H. Harms. "Competition betweencis, trans and Cyclopropane Fatty Acid Formation and its Impact on Membrane Fluidity." Engineering in Life Sciences 7, no. 1 (2007): 67–74. http://dx.doi.org/10.1002/elsc.200620168.

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Brown, Janelle L., Thomas Ross, Thomas A. McMeekin, and Peter D. Nichols. "Acid habituation of Escherichia coli and the potential role of cyclopropane fatty acids in low pH tolerance." International Journal of Food Microbiology 37, no. 2-3 (1997): 163–73. http://dx.doi.org/10.1016/s0168-1605(97)00068-8.

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