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Cousin FJ, Le Guellec R, Chagnot C, Goux D, Dalmasso M, Laplace JM, Cretenet M. Oenococcus sicerae sp. nov., isolated from French cider. Syst Appl Microbiol 2018; 42:302-308. [PMID: 30685079 DOI: 10.1016/j.syapm.2018.12.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Revised: 12/05/2018] [Accepted: 12/14/2018] [Indexed: 11/18/2022]
Abstract
Two Gram-stain-positive, small ellipsoidal cocci, non-motile, oxidase- and catalase-negative, and facultative anaerobic strains (UCMA15228T and UCMA17102) were isolated in France, from fermented apple juices (ciders). The 16S rRNA gene sequence was identical between the two isolates and showed 97 % similarity with respect to the closest related species Oenococcus oeni and O. kitaharae. Therefore, the two isolates were classified within the genus Oenococcus. The phylogeny based on the pheS gene sequences also confirmed the position of the new taxon. DNA-DNA hybridizations based on in silico genome-to-genome comparisons (GGDC) and Average Nucleotide Identity (ANI) values, as well as species-specific PCR, validated the novelty of the taxon. Various phenotypic characteristics such as the optimum temperature and pH for growth, the ability to metabolise sugars, the aptitude to perform the malolactic fermentation, and the resistance to ethanol and NaCl, revealed that the two strains are distinguishable from the other members of the Oenococcus genus. The combined genotypic and phenotypic data support the classification of strains UCMA15228T and UCMA17102 into a novel species of Oenococcus, for which the name O. sicerae sp. nov. is proposed. The type strain is UCMA15228T (=DSM107163T=CIRM-BIA2288T).
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Affiliation(s)
- Fabien J Cousin
- Normandie Univ, UNICAEN, UNIROUEN, ABTE, 14000 Caen, France.
| | | | | | - Didier Goux
- Normandie Univ, UNICAEN, SF ICORE 4206, CMAbio3, F-14032 Caen, France.
| | - Marion Dalmasso
- Normandie Univ, UNICAEN, UNIROUEN, ABTE, 14000 Caen, France.
| | | | - Marina Cretenet
- Normandie Univ, UNICAEN, UNIROUEN, ABTE, 14000 Caen, France; Normandie Univ, UNICAEN, SF ICORE 4206, CBM, F-14032 Caen, France.
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Cousin FJ, Le Guellec R, Chuat V, Dalmasso M, Laplace JM, Cretenet M. Multiplex PCR for rapid identification of major lactic acid bacteria genera in cider and other fermented foods. Int J Food Microbiol 2018; 291:17-24. [PMID: 30428422 DOI: 10.1016/j.ijfoodmicro.2018.11.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Revised: 10/24/2018] [Accepted: 11/04/2018] [Indexed: 10/27/2022]
Abstract
Lactobacillus, Pediococcus, Oenococcus and Leuconostoc are the main Lactic Acid Bacteria (LAB) genera present in cider as they are able to survive this hostile environment. LAB play a significant role in cider quality, for example in the process of malolactic fermentation, even though they can also be involved in spoilage of cider (production of biogenic amines, exopolysaccharides, off-flavours…). In this context a better monitoring of the fermentation process is a matter of interest to guarantee cider quality. In the present study, we designed a genus-specific multiplex PCR for a rapid and simultaneous detection of the four main LAB genera involved in cider production. This multiplex PCR worked equally with purified genomic DNA of bacterial isolates and with colonies directly picked from agar plates. This new PCR method was also successfully extended to wine and dairy isolates, and thus constitutes an effective tool to quickly identify LAB associated with fermented foods. Moreover, many biodiversity studies would also benefit from this fast, cheap and reliable identification method.
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Affiliation(s)
- Fabien J Cousin
- Normandie Univ, UNICAEN, UNIROUEN, ABTE, 14000 Caen, France.
| | | | | | - Marion Dalmasso
- Normandie Univ, UNICAEN, UNIROUEN, ABTE, 14000 Caen, France.
| | | | - Marina Cretenet
- Normandie Univ, UNICAEN, UNIROUEN, ABTE, 14000 Caen, France.
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Cousin FJ, Le Guellec R, Schlusselhuber M, Dalmasso M, Laplace JM, Cretenet M. Microorganisms in Fermented Apple Beverages: Current Knowledge and Future Directions. Microorganisms 2017; 5:E39. [PMID: 28757560 PMCID: PMC5620630 DOI: 10.3390/microorganisms5030039] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Revised: 07/20/2017] [Accepted: 07/21/2017] [Indexed: 12/18/2022] Open
Abstract
Production of fermented apple beverages is spread all around the world with specificities in each country. 'French ciders' refer to fermented apple juice mainly produced in the northwest of France and often associated with short periods of consumption. Research articles on this kind of product are scarce compared to wine, especially on phenomena associated with microbial activities. The wine fermentation microbiome and its dynamics, organoleptic improvement for healthy and pleasant products and development of starters are now widely studied. Even if both beverages seem close in terms of microbiome and process (with both alcoholic and malolactic fermentations), the inherent properties of the raw materials and different production and environmental parameters make research on the specificities of apple fermentation beverages worthwhile. This review summarizes current knowledge on the cider microbial ecosystem, associated activities and the influence of process parameters. In addition, available data on cider quality and safety is reviewed. Finally, we focus on the future role of lactic acid bacteria and yeasts in the development of even better or new beverages made from apples.
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Affiliation(s)
- Fabien J Cousin
- Aliments Bioprocédés Toxicologie Environnements, Normandie Univ., UNICAEN, UNIROUEN, 14000 Caen, France.
| | - Rozenn Le Guellec
- Aliments Bioprocédés Toxicologie Environnements, Normandie Univ., UNICAEN, UNIROUEN, 14000 Caen, France.
| | - Margot Schlusselhuber
- Aliments Bioprocédés Toxicologie Environnements, Normandie Univ., UNICAEN, UNIROUEN, 14000 Caen, France.
| | - Marion Dalmasso
- Aliments Bioprocédés Toxicologie Environnements, Normandie Univ., UNICAEN, UNIROUEN, 14000 Caen, France.
| | - Jean-Marie Laplace
- Aliments Bioprocédés Toxicologie Environnements, Normandie Univ., UNICAEN, UNIROUEN, 14000 Caen, France.
| | - Marina Cretenet
- Aliments Bioprocédés Toxicologie Environnements, Normandie Univ., UNICAEN, UNIROUEN, 14000 Caen, France.
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Deutsch SM, Mariadassou M, Nicolas P, Parayre S, Le Guellec R, Chuat V, Peton V, Le Maréchal C, Burati J, Loux V, Briard-Bion V, Jardin J, Plé C, Foligné B, Jan G, Falentin H. Identification of proteins involved in the anti-inflammatory properties of Propionibacterium freudenreichii by means of a multi-strain study. Sci Rep 2017; 7:46409. [PMID: 28406170 PMCID: PMC5390290 DOI: 10.1038/srep46409] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2016] [Accepted: 03/09/2017] [Indexed: 12/29/2022] Open
Abstract
Propionibacterium freudenreichii, a dairy starter, can reach a population of almost 109 propionibacteria per gram in Swiss-type cheese at the time of consumption. Also consumed as a probiotic, it displays strain-dependent anti-inflammatory properties mediated by surface proteins that induce IL-10 in leukocytes. We selected 23 strains with varied anti-inflammatory potentials in order to identify the protein(s) involved. After comparative genomic analysis, 12 of these strains were further analysed by surface proteomics, eight of them being further submitted to transcriptomics. The omics data were then correlated to the anti-inflammatory potential evaluated by IL-10 induction. This comparative omics strategy highlighted candidate genes that were further subjected to gene-inactivation validation. This validation confirmed the contribution of surface proteins, including SlpB and SlpE, two proteins with SLH domains known to mediate non-covalent anchorage to the cell-wall. Interestingly, HsdM3, predicted as cytoplasmic and involved in DNA modification, was shown to contribute to anti-inflammatory activity. Finally, we demonstrated that a single protein cannot explain the anti-inflammatory properties of a strain. These properties therefore result from different combinations of surface and cytoplasmic proteins, depending on the strain. Our enhanced understanding of the molecular bases for immunomodulation will enable the relevant screening for bacterial resources with anti-inflammatory properties.
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Affiliation(s)
| | | | | | | | | | - Victoria Chuat
- STLO, UMR 1253, INRA, Agrocampus Ouest, 35000, Rennes, France
| | - Vincent Peton
- STLO, UMR 1253, INRA, Agrocampus Ouest, 35000, Rennes, France
| | | | | | | | | | - Julien Jardin
- STLO, UMR 1253, INRA, Agrocampus Ouest, 35000, Rennes, France
| | - Coline Plé
- Univ. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019 - UMR 8204 - CIIL - Center for Infection and Immunity of Lille, 59000 Lille, France
| | - Benoît Foligné
- Univ. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019 - UMR 8204 - CIIL - Center for Infection and Immunity of Lille, 59000 Lille, France
| | - Gwénaël Jan
- STLO, UMR 1253, INRA, Agrocampus Ouest, 35000, Rennes, France
| | - Hélène Falentin
- STLO, UMR 1253, INRA, Agrocampus Ouest, 35000, Rennes, France
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de sa Peixoto P, Roiland C, Thomas D, Briard-Bion V, Le Guellec R, Parayre S, Deutsch SM, Jan G, Guyomarc'h F. Recrystallized S-layer protein of a probiotic Propionibacterium: structural and nanomechanical changes upon temperature or pH shifts probed by solid-state NMR and AFM. Langmuir 2014; 31:199-208. [PMID: 25479375 DOI: 10.1021/la503735z] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Surface protein layers (S layers) are common constituents of the bacterial cell wall and originate from the assembly of strain-dependent surface layer proteins (Slps). These proteins are thought to play important roles in the bacteria's biology and to have very promising technological applications as biomaterials or as part of cell-host cross-talk in probiotic mechanism. The SlpA from Propionibacterium freudenreichii PFCIRM 118 strain was isolated and recrystallized to investigate organization and assembly of the protein using atomic force microscopy and solid-state (1)H and (13)C-nuclear magnetic resonance. SlpA was found to form hexagonal p1 monolayer lattices where the protein exhibited high proportions of disordered regions and of bound water. The lattice structure was maintained, but softened, upon mild heating or acidification, probably in relation with the increasing mobilities of the disordered protein regions. These results gave structural insights on the mobile protein regions exposed by S layer films, upon physiologically relevant changes of their environmental conditions.
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Affiliation(s)
- Paulo de sa Peixoto
- INRA-AGROCAMPUS OUEST UMR 1253 Science et Technologie du Lait et de l'Œuf, 35042 Rennes, France
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Sohail M, Hochegger H, Klotzbücher A, Guellec RL, Hunt T, Southern EM. Antisense oligonucleotides selected by hybridisation to scanning arrays are effective reagents in vivo. Nucleic Acids Res 2001; 29:2041-51. [PMID: 11353073 PMCID: PMC55457 DOI: 10.1093/nar/29.10.2041] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.1] [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: 11/13/2022] Open
Abstract
Transcripts representing mRNAs of three Xenopus cyclins, B1, B4 and B5, were hybridised to arrays of oligonucleotides scanning the first 120 nt of the coding region to assess the ability of the immobilised oligonucleotides to form heteroduplexes with their targets. Oligonucleotides that produced high heteroduplex yield and others that showed little annealing were assayed for their effect on translation of endogenous cyclin mRNAs in Xenopus egg extracts and their ability to promote cleavage of cyclin mRNAs in oocytes by RNase H. Excellent correlation was found between antisense potency and affinity of oligonucleotides for the cyclin transcripts as measured by the array, despite the complexity of the cellular environment.
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Affiliation(s)
- M Sohail
- Department of Biochemistry, University of Oxford, South Parks Road, Oxford OX1 3QU, UK.
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