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Wang D, Chen H, Yang H, Yao S, Wu C. Incorporation of Exogenous Fatty Acids Enhances the Salt Tolerance of Food Yeast Zygosaccharomyces rouxii. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:10301-10310. [PMID: 34449211 DOI: 10.1021/acs.jafc.1c03896] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Fatty acids have great effects on the maintenance of the cell membrane structure, cell viability, and cell metabolisms. In this study, we sought to elucidate the effects of exogenous fatty acids on the salt tolerance of food yeast Zygosaccharomyces rouxii. Results showed that Z. rouxii can grow by using exogenous fatty acids (C12:0, C14:0, C16:0, C16:1, C18:0, C18:1, and C18:2) as the sole carbon source. Four fatty acids (C12:0, C16:0, C16:1, and C18:1) can improve the salt tolerance of cells, enhance the formation of the cell biofilm, regulate the chemical compositions, restore growth in the presence of cerulenin, regulate the contents of membrane fatty acids, and control the expression of key genes in the fatty acid metabolism. Our results reveal that Z. rouxii can synthesize membrane fatty acids from exogenous fatty acids and the supplementation of these fatty acids can override the need for de novo fatty acid biosynthesis.
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Affiliation(s)
- Dingkang Wang
- College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, China
- Key Laboratory of Leather Chemistry and Engineering, Ministry of Education, Sichuan University, Chengdu 610065, China
| | - Hong Chen
- College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, China
- Key Laboratory of Leather Chemistry and Engineering, Ministry of Education, Sichuan University, Chengdu 610065, China
| | - Huan Yang
- College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, China
- Key Laboratory of Leather Chemistry and Engineering, Ministry of Education, Sichuan University, Chengdu 610065, China
| | - Shangjie Yao
- College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, China
- Key Laboratory of Leather Chemistry and Engineering, Ministry of Education, Sichuan University, Chengdu 610065, China
| | - Chongde Wu
- College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, China
- Key Laboratory of Leather Chemistry and Engineering, Ministry of Education, Sichuan University, Chengdu 610065, China
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Stolarek P, Bernat P, Szczerbiec D, Różalski A. Phospholipids and Fatty Acids Affect the Colonization of Urological Catheters by Proteus mirabilis. Int J Mol Sci 2021; 22:ijms22168452. [PMID: 34445157 PMCID: PMC8395112 DOI: 10.3390/ijms22168452] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 07/31/2021] [Accepted: 08/02/2021] [Indexed: 01/10/2023] Open
Abstract
Proteus mirabilis-mediated CAUTIs are usually initiated by the adherence of bacteria to a urinary catheter surface. In this paper, three isolates of different origin and exhibiting different adhesion abilities were investigated in search of any changes in lipidome components which might contribute to P. mirabilis adhesion to catheters. Using GC-MS and LC-MS/MS techniques, 21 fatty acids and 27 phospholipids were identified in the examined cells. The comparison of the profiles of phospholipids and fatty acids obtained for catheter-attached cells and planktonic cells of the pathogens indicated C11:0 and PE 37:2 levels as values which could be related to P. mirabilis adhesion to a catheter, as well as cis C16:1, PE 32:0, PE 33:0, PE 38:2, PG 33:1, PG 34:0, PE 30:1, PE 32:1 and PG 30:2 levels as values which could be associated with cell hydrophobicity. Based on DiBAC4 (3) fluorescence intensity and an affinity to p-xylene, it was found that the inner membrane depolarization, as well as strong cell-surface hydrophobicity, were important for P. mirabilis adhesion to a silicone catheter. A generalized polarization of Laurdan showed lower values for P. mirabilis cells attached to the catheter surface than for planktonic cells, suggesting lower packing density of membrane components of the adherent cells compared with tightly packed, stiffened membranes of the planktonic cells. Taken together, these data indicate that high surface hydrophobicity, fluidization and depolarization of P. mirabilis cell membranes enable colonization of a silicone urinary catheter surface.
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Affiliation(s)
- Paulina Stolarek
- Department of Biology of Bacteria, Faculty of Biology and Environmental Protection, University of Lodz, Banacha 12/16, 90-237 Lodz, Poland; (D.S.); (A.R.)
- Correspondence: ; Tel.: +48-42-635-43-24; Fax: +48-42-665-58-18
| | - Przemysław Bernat
- Department of Industrial Microbiology and Biotechnology, Faculty of Biology and Environmental Protection, University of Lodz, Banacha 12/16, 90-237 Lodz, Poland;
| | - Dominika Szczerbiec
- Department of Biology of Bacteria, Faculty of Biology and Environmental Protection, University of Lodz, Banacha 12/16, 90-237 Lodz, Poland; (D.S.); (A.R.)
| | - Antoni Różalski
- Department of Biology of Bacteria, Faculty of Biology and Environmental Protection, University of Lodz, Banacha 12/16, 90-237 Lodz, Poland; (D.S.); (A.R.)
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Haddaji N, Mahdhi AK, Ismaiil MB, Bakhrouf A. Effect of environmental stress on cell surface and membrane fatty acids of Lactobacillus plantarum. Arch Microbiol 2017; 199:1243-1250. [DOI: 10.1007/s00203-017-1395-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2016] [Revised: 05/02/2017] [Accepted: 06/05/2017] [Indexed: 12/31/2022]
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Haddaji N, Mahdhi AK, Krifi B, Ismail MB, Bakhrouf A. Change in cell surface properties of Lactobacillus casei under heat shock treatment. FEMS Microbiol Lett 2015; 362:fnv047. [PMID: 25825473 DOI: 10.1093/femsle/fnv047] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/17/2015] [Indexed: 12/14/2022] Open
Abstract
We undertake this study in the aim to give new insight about the change in cellular physiological state under heat shock treatment and probiotic strain screening procedure. Different cell properties have been studied like adhesive ability to biotic and abiotic surfaces, the cell surface hydrophobicity and the fatty acids profiles. Compared to the normal cells, the heated cells increased their adhesive ability to biotic surface. However, the adhesion to abiotic surface was decreased. The cell surface hydrophobicity of the heated strains showed a significant decrease (P < 0.05). Our data revealed that high temperature change the fatty acids profiles of the treated cells, especially the proportions of unsaturated and saturated fatty acid. In fact, the ratio of saturated to unsaturated fatty acids of the heated Lactobacillus casei cells was significantly higher than that of the control cells (P < 0.05). The present finding could firstly add new insight about the response of probiotic to stressful conditions, such us the important role of cell membrane, considered as the first main structure to be damaged by physicochemical stress, in stress resistance because of their composition that can change in adaptation to harsh conditions. Secondly, there is no relationship between changes in membrane composition and fluidity induced by heat shock treatment and adhesion to biotic and abiotic surface.
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Affiliation(s)
- Najla Haddaji
- Laboratory of Analysis, Treatment and Valorization of the Pollutants of the Environment and Products, Faculty of Pharmacy, University of Monastir, Monastir Avicenne Street, Monastir 5000, Tunisia
| | - Abdel Karim Mahdhi
- Laboratory of Analysis, Treatment and Valorization of the Pollutants of the Environment and Products, Faculty of Pharmacy, University of Monastir, Monastir Avicenne Street, Monastir 5000, Tunisia
| | - Boubaker Krifi
- Laboratory of Analysis, Treatment and Valorization of the Pollutants of the Environment and Products, Faculty of Pharmacy, University of Monastir, Monastir Avicenne Street, Monastir 5000, Tunisia
| | - Manel Ben Ismail
- Laboratory of Biophysics, Faculty of Medicine, University of Monastir, Monastir Avicenne Street, Monastir 5000, Tunisia
| | - Amina Bakhrouf
- Laboratory of Analysis, Treatment and Valorization of the Pollutants of the Environment and Products, Faculty of Pharmacy, University of Monastir, Monastir Avicenne Street, Monastir 5000, Tunisia
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Al-Beloshei NE, Al-Awadhi H, Al-Khalaf RA, Afzal M. A comparative study of fatty acid profile and formation of biofilm inGeobacillus gargensisexposed to variable abiotic stress. Can J Microbiol 2015; 61:48-59. [DOI: 10.1139/cjm-2014-0615] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Understanding bacterial fatty acid (FA) profile has a great taxonomic significance as well as clinical importance for diagnosis issues. Both the composition and nature of membrane FAs change under different nutritional, biotic and (or) abiotic stresses, and environmental stress. Bacteria produce both odd-carbon as well as branched-chain fatty acids (BCFAs). This study was designed to examine the effect of abiotic pressure, including salinity, temperature, pH, and oxinic stress on the growth, development, and FA profile in thermophilic Geobacillus gargensis. Under these stresses, 3 parametric ratios, 2-methyl fatty acids/3-methyl fatty acids (iso-/anteiso-FAs), BCFAs/straight-chain saturated fatty acids (SCSFA), and SCSFAs/straight-chain unsaturated fatty acids (SCUFA), in addition to total lipids affected by variable stresses were measured. Our results indicate that the ratio of total iso-/anteiso-FAs increased at the acidic pH range of 4.1–5.2 and decreased with increasing pH. The reverse was true for salt stress when iso-/anteiso-FAs ratio increased with salt concentration. The BCFAs/SCSFAs and SCSFAs/SCUFAs ratios increased at neutral and alkaline pH and high salt concentration, reduced incubation time, and comparatively high temperature (55–65 °C) of the growth medium. The bacterial total lipid percentage deceased with increasing salt concentration, incubation period, but it increased with temperature. The formation of extracellular polymeric substances was observed under all stress conditions and with the addition of sodium dodecyl sulfate (2 and 5 mmol/L) to the growth medium. The membrane phospholipid composition of the bacterium was analyzed by thin-layer chromatography.
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Affiliation(s)
| | - Husain Al-Awadhi
- Department of Biological Sciences, Faculty of Science, Kuwait University, Kuwait
| | - Rania A. Al-Khalaf
- Department of Biological Sciences, Faculty of Science, Kuwait University, Kuwait
| | - Mohammad Afzal
- Department of Biological Sciences, Faculty of Science, Kuwait University, Kuwait
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Bae YM, Zheng L, Hyun JE, Jung KS, Heu S, Lee SY. Growth Characteristics and Biofilm Formation of Various Spoilage Bacteria Isolated from Fresh Produce. J Food Sci 2014; 79:M2072-80. [DOI: 10.1111/1750-3841.12644] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2014] [Accepted: 08/08/2014] [Indexed: 11/28/2022]
Affiliation(s)
- Young-Min Bae
- Dept. of Food Science and Technology; Chung-Ang Univ; 72-1 Nae-ri, Daedeok-myeon, Anseong-si, Gyeonggi-do 456-756 South Korea
| | - Ling Zheng
- Dept. of Food Science and Technology; Chung-Ang Univ; 72-1 Nae-ri, Daedeok-myeon, Anseong-si, Gyeonggi-do 456-756 South Korea
| | - Jeong-Eun Hyun
- Dept. of Food Science and Technology; Chung-Ang Univ; 72-1 Nae-ri, Daedeok-myeon, Anseong-si, Gyeonggi-do 456-756 South Korea
| | - Kyu-Seok Jung
- Microbial Safety Div; Dept. of Agro-food Safety; Natl. Academy of Agricultural Science Rural Development Administration; Suwon 441-857 Republic of Korea
| | - Sunggi Heu
- Microbial Safety Div; Dept. of Agro-food Safety; Natl. Academy of Agricultural Science Rural Development Administration; Suwon 441-857 Republic of Korea
| | - Sun-Young Lee
- Dept. of Food Science and Technology; Chung-Ang Univ; 72-1 Nae-ri, Daedeok-myeon, Anseong-si, Gyeonggi-do 456-756 South Korea
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