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Strain Variability of Listeria monocytogenes under NaCl Stress Elucidated by a High-Throughput Microbial Growth Data Assembly and Analysis Protocol.

Aalto-Araneda M, Pöntinen A, Pesonen M, Corander J, Markkula A, Tasara T, Stephan R, Korkeala H.

Appl Environ Microbiol. 2020 Mar 2;86(6). pii: e02378-19. doi: 10.1128/AEM.02378-19. Print 2020 Mar 2.


Shopping Detail Information and Home Freezer Sampling Confirmed the Role of Commercial, Modified-Atmosphere Packaged Meatballs as a Vehicle for Listeriosis in Finland.

Keto-Timonen R, Markkula A, Halkilahti J, Huttunen R, Räsänen S, Salmenlinna S, Heikkilä A, Puisto M, Närhinen M, Hakkinen M, Korkeala H, Jalava K.

Front Public Health. 2019 Aug 6;7:216. doi: 10.3389/fpubh.2019.00216. eCollection 2019.


Insights into the Phylogeny and Evolution of Cold Shock Proteins: From Enteropathogenic Yersinia and Escherichia coli to Eubacteria.

Yu T, Keto-Timonen R, Jiang X, Virtanen JP, Korkeala H.

Int J Mol Sci. 2019 Aug 20;20(16). pii: E4059. doi: 10.3390/ijms20164059.


Prevalence and Dynamics of Pathogenic Yersinia enterocolitica 4/O:3 Among Finnish Piglets, Fattening Pigs, and Sows.

Koskinen J, Keto-Timonen R, Virtanen S, Vilar MJ, Korkeala H.

Foodborne Pathog Dis. 2019 Dec;16(12):831-839. doi: 10.1089/fpd.2019.2632. Epub 2019 Jul 29.


Role of DEAD-box RNA helicase genes in the growth of Yersinia pseudotuberculosis IP32953 under cold, pH, osmotic, ethanol and oxidative stresses.

Jiang X, Keto-Timonen R, Skurnik M, Korkeala H.

PLoS One. 2019 Jul 9;14(7):e0219422. doi: 10.1371/journal.pone.0219422. eCollection 2019.


Genomic Epidemiology and Phenotyping Reveal on-Farm Persistence and Cold Adaptation of Raw Milk Outbreak-Associated Yersinia pseudotuberculosis.

Castro H, Jaakkonen A, Hakakorpi A, Hakkinen M, Isidro J, Korkeala H, Lindström M, Hallanvuo S.

Front Microbiol. 2019 May 14;10:1049. doi: 10.3389/fmicb.2019.01049. eCollection 2019.


Processing plant and machinery sanitation and hygiene practices associate with Listeria monocytogenes occurrence in ready-to-eat fish products.

Aalto-Araneda M, Lundén J, Markkula A, Hakola S, Korkeala H.

Food Microbiol. 2019 Sep;82:455-464. doi: 10.1016/ Epub 2019 Mar 20.


MdrL, a major facilitator superfamily efflux pump of Listeria monocytogenes involved in tolerance to benzalkonium chloride.

Jiang X, Yu T, Xu Y, Wang H, Korkeala H, Shi L.

Appl Microbiol Biotechnol. 2019 Feb;103(3):1339-1350. doi: 10.1007/s00253-018-9551-y. Epub 2018 Dec 11.


Changes in Transcriptome of Yersinia pseudotuberculosis IP32953 Grown at 3 and 28°C Detected by RNA Sequencing Shed Light on Cold Adaptation.

Virtanen JP, Keto-Timonen R, Jaakkola K, Salin N, Korkeala H.

Front Cell Infect Microbiol. 2018 Nov 27;8:416. doi: 10.3389/fcimb.2018.00416. eCollection 2018.


Strengthening the efficacy of official food control improves Listeria monocytogenes prevention in fish-processing plants.

Aalto-Araneda M, Korkeala H, Lundén J.

Sci Rep. 2018 Aug 30;8(1):13105. doi: 10.1038/s41598-018-31410-9.


MouR controls the expression of the Listeria monocytogenes Agr system and mediates virulence.

Pinheiro J, Lisboa J, Pombinho R, Carvalho F, Carreaux A, Brito C, Pöntinen A, Korkeala H, Dos Santos NMS, Morais-Cabral JH, Sousa S, Cabanes D.

Nucleic Acids Res. 2018 Oct 12;46(18):9338-9352. doi: 10.1093/nar/gky624.


Growth of Yersinia pseudotuberculosis Strains at Different Temperatures, pH Values, and NaCl and Ethanol Concentrations.

Keto-Timonen R, Pöntinen A, Aalto-Araneda M, Korkeala H.

J Food Prot. 2018 Jan;81(1):142-149. doi: 10.4315/0362-028X.JFP-17-223.


Occurrence, Persistence, and Contamination Routes of Listeria monocytogenes Genotypes on Three Finnish Dairy Cattle Farms: a Longitudinal Study.

Castro H, Jaakkonen A, Hakkinen M, Korkeala H, Lindström M.

Appl Environ Microbiol. 2018 Jan 31;84(4). pii: e02000-17. doi: 10.1128/AEM.02000-17. Print 2018 Feb 15.


Heat Resistance Mediated by pLM58 Plasmid-Borne ClpL in Listeria monocytogenes.

Pöntinen A, Aalto-Araneda M, Lindström M, Korkeala H.

mSphere. 2017 Nov 1;2(6). pii: e00364-17. doi: 10.1128/mSphere.00364-17. eCollection 2017 Nov-Dec.


The European AntibotABE Framework Program and Its Update: Development of Innovative Botulinum Antibodies.

Rasetti-Escargueil C, Avril A, Miethe S, Mazuet C, Derman Y, Selby K, Thullier P, Pelat T, Urbain R, Fontayne A, Korkeala H, Sesardic D, Hust M, Popoff MR.

Toxins (Basel). 2017 Oct 2;9(10). pii: E309. doi: 10.3390/toxins9100309. Review.


Neurotoxin synthesis is positively regulated by the sporulation transcription factor Spo0A in Clostridium botulinum type E.

Mascher G, Mertaoja A, Korkeala H, Lindström M.

Environ Microbiol. 2017 Oct;19(10):4287-4300. doi: 10.1111/1462-2920.13892. Epub 2017 Sep 15.


Heat shock and prolonged heat stress attenuate neurotoxin and sporulation gene expression in group I Clostridium botulinum strain ATCC 3502.

Selby K, Mascher G, Somervuo P, Lindström M, Korkeala H.

PLoS One. 2017 May 2;12(5):e0176944. doi: 10.1371/journal.pone.0176944. eCollection 2017.


Screening of the two-component-system histidine kinases of Listeria monocytogenes EGD-e. LiaS is needed for growth under heat, acid, alkali, osmotic, ethanol and oxidative stresses.

Pöntinen A, Lindström M, Skurnik M, Korkeala H.

Food Microbiol. 2017 Aug;65:36-43. doi: 10.1016/ Epub 2017 Jan 31.


Evaluation of virulence genes in Yersinia enterocolitica strains using SYBR Green real-time PCR.

Peruzy MF, Murru N, Perugini AG, Capuano F, Delibato E, Mercogliano R, Korkeala H, Proroga YTR.

Food Microbiol. 2017 Aug;65:231-235. doi: 10.1016/ Epub 2017 Mar 6.


Comparative Phenotypic and Genotypic Analysis of Swiss and Finnish Listeria monocytogenes Isolates with Respect to Benzalkonium Chloride Resistance.

Meier AB, Guldimann C, Markkula A, Pöntinen A, Korkeala H, Tasara T.

Front Microbiol. 2017 Mar 23;8:397. doi: 10.3389/fmicb.2017.00397. eCollection 2017.


Yersinia spp. in Wild Rodents and Shrews in Finland.

Joutsen S, Laukkanen-Ninios R, Henttonen H, Niemimaa J, Voutilainen L, Kallio ER, Helle H, Korkeala H, Fredriksson-Ahomaa M.

Vector Borne Zoonotic Dis. 2017 May;17(5):303-311. doi: 10.1089/vbz.2016.2025. Epub 2017 Mar 23.


Historical Perspectives and Guidelines for Botulinum Neurotoxin Subtype Nomenclature.

Peck MW, Smith TJ, Anniballi F, Austin JW, Bano L, Bradshaw M, Cuervo P, Cheng LW, Derman Y, Dorner BG, Fisher A, Hill KK, Kalb SR, Korkeala H, Lindström M, Lista F, Lúquez C, Mazuet C, Pirazzini M, Popoff MR, Rossetto O, Rummel A, Sesardic D, Singh BR, Stringer SC.

Toxins (Basel). 2017 Jan 18;9(1). pii: E38. doi: 10.3390/toxins9010038. Review.


Neutralization of Botulinum Neurotoxin Type E by a Humanized Antibody.

Derman Y, Selby K, Miethe S, Frenzel A, Liu Y, Rasetti-Escargueil C, Avril A, Pelat T, Urbain R, Fontayne A, Thullier P, Sesardic D, Lindström M, Hust M, Korkeala H.

Toxins (Basel). 2016 Sep 12;8(9). pii: E257. doi: 10.3390/toxins8090257.


Cold Shock Proteins: A Minireview with Special Emphasis on Csp-family of Enteropathogenic Yersinia.

Keto-Timonen R, Hietala N, Palonen E, Hakakorpi A, Lindström M, Korkeala H.

Front Microbiol. 2016 Jul 22;7:1151. doi: 10.3389/fmicb.2016.01151. eCollection 2016. Review.


Characterization of European Yersinia enterocolitica 1A strains using restriction fragment length polymorphism and multilocus sequence analysis.

Murros A, Säde E, Johansson P, Korkeala H, Fredriksson-Ahomaa M, Björkroth J.

Lett Appl Microbiol. 2016 Oct;63(4):282-8. doi: 10.1111/lam.12626. Epub 2016 Aug 26.


Prevalence of Pathogenic Yersinia enterocolitica in Finnish Slaughter Pigs.

Rahikainen Ibañez T, Laukkanen-Ninios R, Hakkinen M, Johansson T, Vilar M, Korkeala H.

J Food Prot. 2016 Apr;79(4):677-81. doi: 10.4315/0362-028X.JFP-15-389.


Large Diversity of Porcine Yersinia enterocolitica 4/O:3 in Eight European Countries Assessed by Multiple-Locus Variable-Number Tandem-Repeat Analysis.

Alakurtti S, Keto-Timonen R, Virtanen S, Martínez PO, Laukkanen-Ninios R, Korkeala H.

Foodborne Pathog Dis. 2016 Jun;13(6):289-95. doi: 10.1089/fpd.2015.2095. Epub 2016 Mar 18.


Comparative genomic analyses reveal broad diversity in botulinum-toxin-producing Clostridia.

Williamson CH, Sahl JW, Smith TJ, Xie G, Foley BT, Smith LA, Fernández RA, Lindström M, Korkeala H, Keim P, Foster J, Hill K.

BMC Genomics. 2016 Mar 3;17:180. doi: 10.1186/s12864-016-2502-z.


Bayesian Estimation of the True Prevalence and of the Diagnostic Test Sensitivity and Specificity of Enteropathogenic Yersinia in Finnish Pig Serum Samples.

Vilar MJ, Ranta J, Virtanen S, Korkeala H.

Biomed Res Int. 2015;2015:931542. doi: 10.1155/2015/931542. Epub 2015 Oct 11.


Development of Human-Like scFv-Fc Neutralizing Botulinum Neurotoxin E.

Miethe S, Rasetti-Escargueil C, Avril A, Liu Y, Chahboun S, Korkeala H, Mazuet C, Popoff MR, Pelat T, Thullier P, Sesardic D, Hust M.

PLoS One. 2015 Oct 6;10(10):e0139905. doi: 10.1371/journal.pone.0139905. eCollection 2015.


Functional csdA is needed for effective adaptation and initiation of growth of Clostridium botulinum ATCC 3502 at suboptimal temperature.

Söderholm H, Derman Y, Lindström M, Korkeala H.

Int J Food Microbiol. 2015 Sep 2;208:51-7. doi: 10.1016/j.ijfoodmicro.2015.05.013. Epub 2015 May 29.


Two-Component-System Histidine Kinases Involved in Growth of Listeria monocytogenes EGD-e at Low Temperatures.

Pöntinen A, Markkula A, Lindström M, Korkeala H.

Appl Environ Microbiol. 2015 Jun 15;81(12):3994-4004. doi: 10.1128/AEM.00626-15. Epub 2015 Apr 3.


Bayesian modelling to identify the risk factors for Yersinia enterocolitica contamination of pork carcasses and pluck sets in slaughterhouses.

Vilar MJ, Virtanen S, Laukkanen-Ninios R, Korkeala H.

Int J Food Microbiol. 2015 Mar 16;197:53-7. doi: 10.1016/j.ijfoodmicro.2014.12.020. Epub 2014 Dec 18.


Isolation and characterization of Yersinia-specific bacteriophages from pig stools in Finland.

Salem M, Virtanen S, Korkeala H, Skurnik M.

J Appl Microbiol. 2015 Mar;118(3):599-608. doi: 10.1111/jam.12722. Epub 2015 Jan 9.


Role of csp genes in NaCl, pH, and ethanol stress response and motility in Clostridium botulinum ATCC 3502.

Derman Y, Söderholm H, Lindström M, Korkeala H.

Food Microbiol. 2015 Apr;46:463-470. doi: 10.1016/ Epub 2014 Sep 18.


Mechanisms of food processing and storage-related stress tolerance in Clostridium botulinum.

Dahlsten E, Lindström M, Korkeala H.

Res Microbiol. 2015 May;166(4):344-52. doi: 10.1016/j.resmic.2014.09.011. Epub 2014 Oct 7. Review.


Positive regulation of botulinum neurotoxin gene expression by CodY in Clostridium botulinum ATCC 3502.

Zhang Z, Dahlsten E, Korkeala H, Lindström M.

Appl Environ Microbiol. 2014 Dec;80(24):7651-8. doi: 10.1128/AEM.02838-14. Epub 2014 Oct 3.


High prevalence of pathogenic Yersinia enterocolitica in pig cheeks.

Laukkanen-Ninios R, Fredriksson-Ahomaa M, Maijala R, Korkeala H.

Food Microbiol. 2014 Oct;43:50-2. doi: 10.1016/ Epub 2014 May 4.


Alternative sigma factors SigF, SigE, and SigG are essential for sporulation in Clostridium botulinum ATCC 3502.

Kirk DG, Zhang Z, Korkeala H, Lindström M.

Appl Environ Microbiol. 2014 Aug;80(16):5141-50. doi: 10.1128/AEM.01015-14. Epub 2014 Jun 13.


Transcriptomic analysis of (group I) Clostridium botulinum ATCC 3502 cold shock response.

Dahlsten E, Isokallio M, Somervuo P, Lindström M, Korkeala H.

PLoS One. 2014 Feb 24;9(2):e89958. doi: 10.1371/journal.pone.0089958. eCollection 2014.


Introduction of infected animals to herds is an important route for the spread of Yersinia enterocolitica infection between pig farms.

Virtanen S, Nikunen S, Korkeala H.

J Food Prot. 2014 Jan;77(1):116-21. doi: 10.4315/0362-028X.JFP-13-144.


Evaluation of normalization reference genes for RT-qPCR analysis of spo0A and four sporulation sigma factor genes in Clostridium botulinum Group I strain ATCC 3502.

Kirk DG, Palonen E, Korkeala H, Lindström M.

Anaerobe. 2014 Apr;26:14-9. doi: 10.1016/j.anaerobe.2013.12.003. Epub 2014 Jan 2.


The ubiquitous nature of Listeria monocytogenes clones: a large-scale Multilocus Sequence Typing study.

Haase JK, Didelot X, Lecuit M, Korkeala H; L. monocytogenes MLST Study Group, Achtman M.

Environ Microbiol. 2014 Feb;16(2):405-16. doi: 10.1111/1462-2920.12342. Epub 2013 Dec 16.


The CLO3403/CLO3404 two-component system of Clostridium botulinum E1 Beluga is important for cold shock response and growth at low temperatures.

Mascher G, Derman Y, Kirk DG, Palonen E, Lindström M, Korkeala H.

Appl Environ Microbiol. 2014 Jan;80(1):399-407. doi: 10.1128/AEM.03204-13. Epub 2013 Nov 1.


The cold-induced two-component system CBO0366/CBO0365 regulates metabolic pathways with novel roles in group I Clostridium botulinum ATCC 3502 cold tolerance.

Dahlsten E, Zhang Z, Somervuo P, Minton NP, Lindström M, Korkeala H.

Appl Environ Microbiol. 2014 Jan;80(1):306-19. doi: 10.1128/AEM.03173-13. Epub 2013 Oct 25.


Alternative sigma factor σE has an important role in stress tolerance of Yersinia pseudotuberculosis IP32953.

Palonen E, Lindström M, Somervuo P, Korkeala H.

Appl Environ Microbiol. 2013 Oct;79(19):5970-7. doi: 10.1128/AEM.01891-13. Epub 2013 Jul 19.


The two-component system CBO2306/CBO2307 is important for cold adaptation of Clostridium botulinum ATCC 3502.

Derman Y, Isokallio M, Lindström M, Korkeala H.

Int J Food Microbiol. 2013 Oct 1;167(1):87-91. doi: 10.1016/j.ijfoodmicro.2013.06.004. Epub 2013 Jun 14.


Management practices associated with the carriage of Yersinia enterocolitica in pigs at farm level.

Vilar MJ, Virtanen S, Heinonen M, Korkeala H.

Foodborne Pathog Dis. 2013 Jul;10(7):595-602. doi: 10.1089/fpd.2012.1443.


Infant botulism with prolonged faecal excretion of botulinum neurotoxin and Clostridium botulinum for 7 months.

Derman Y, Korkeala H, Salo E, Lönnqvist T, Saxen H, Lindström M.

Epidemiol Infect. 2014 Feb;142(2):335-9. doi: 10.1017/S0950268813001258. Epub 2013 May 21.


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