The Journal of applied bacteriology最新文献

Yersinia enterocolitica. 鼠疫enterocolitica。

The Journal of applied bacteriology Pub Date : 2020-02-08 DOI: 10.32388/ns6jl3

B. Swaminathan, M. C. Harmon, I. J. Mehlman

引用次数: 2

Note: isolation, characterization and epidemiology of Yersinia enterocolitica from humans and animals. 注:人类和动物小肠结肠炎耶尔森菌的分离、特征和流行病学。

The Journal of applied bacteriology Pub Date : 1996-12-01 DOI: 10.1111/j.1365-2672.1996.tb03565.x

X B Zheng, C Xie

引用次数: 23

Isolation, partial characterization and mode of action of acidocin J1229, a bacteriocin produced by Lactobacillus acidophilus JCM 1229. 嗜酸乳杆菌JCM 1229产酸素J1229的分离、部分特性及作用方式

The Journal of applied bacteriology Pub Date : 1996-12-01 DOI: 10.1111/j.1365-2672.1996.tb03563.x

T Tahara, K Kanatani

{"title":"Isolation, partial characterization and mode of action of acidocin J1229, a bacteriocin produced by Lactobacillus acidophilus JCM 1229.","authors":"T Tahara, K Kanatani","doi":"10.1111/j.1365-2672.1996.tb03563.x","DOIUrl":"https://doi.org/10.1111/j.1365-2672.1996.tb03563.x","url":null,"abstract":"Lactobacillus acidophilus JCM 1229 produces a heat-stable bacteriocin, designated as acidocin J1229, that has a narrow inhibitory spectrum. Production of acidocin J1229 in MRS broth was pH dependent, with maximum activity detected in broth culture maintained at pH 5.0. Acidocin J1229 was purified by ammonium sulphate precipitation and sequential cation exchange and reversed-phase chromatographies. The sequence of the first 24 amino acid residues of the N terminus of acidocin J1229 was determined. The molecular mass of acidocin J1229 as determined by mass spectrometry was 6301 Da. Acidocin J1229 showed a bactericidal effect but not a bacteriolytic effect on sensitive cells. Acidocin J1229 dissipated the membrane potential and the pH gradient in sensitive cells, which affected such proton motive force-dependent processes as amino acid transport. Acidocin J1229 also caused an efflux of glutamate, previously taken up via a unidirectional ATP-driven transport system. Secondary structure prediction revealed the presence of an amphiphilic alpha-helix region that could form hydrophilic pores. These results suggest that acidocin J1229 is a pore-forming peptide that creates cell membrane channels through the \"barrel-stave' mechanism.","PeriodicalId":22599,"journal":{"name":"The Journal of applied bacteriology","volume":"81 6","pages":"669-77"},"PeriodicalIF":0.0,"publicationDate":"1996-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1111/j.1365-2672.1996.tb03563.x","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"19934474","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 35

Application of antimicrobial-producing lactic acid bacteria to control pathogens in ready-to-use vegetables. 产抗菌乳酸菌在即食蔬菜病原菌控制中的应用。

The Journal of applied bacteriology Pub Date : 1996-08-01 DOI: 10.1111/j.1365-2672.1996.tb04487.x

M Vescovo, S Torriani, C Orsi, F Macchiarolo, G Scolari

引用次数: 141

The effect of chlorhexidine on defined, mixed culture oral biofilms grown in a novel model system. 氯己定对在新型模型系统中生长的确定的混合培养口腔生物膜的影响。

The Journal of applied bacteriology Pub Date : 1996-08-01 DOI: 10.1111/j.1365-2672.1996.tb04488.x

S L Kinniment, J W Wimpenny, D Adams, P D Marsh

{"title":"The effect of chlorhexidine on defined, mixed culture oral biofilms grown in a novel model system.","authors":"S L Kinniment, J W Wimpenny, D Adams, P D Marsh","doi":"10.1111/j.1365-2672.1996.tb04488.x","DOIUrl":"https://doi.org/10.1111/j.1365-2672.1996.tb04488.x","url":null,"abstract":"In order to develop an improved method to evaluate antimicrobial agents for use in clinical dentistry, a constant-depth film fermenter (CDFF) has been used to generate biofilms of fixed depth comprising nine species of bacteria commonly found in dental plaque in health and disease. These bacteria were grown together initially in a conventional chemostat which was used to inoculate the CDFF over an 8 h period. Medium was then supplied directly to the CDFF and biofilms allowed to develop. The biofilms were then challenged with eight short pulses of two concentrations of chlorhexidine (0.0125 and 0.125% w/v). The lower concentration had a limited effect on the composition of the biofilms while a differential and substantial inhibition was obtained with a higher concentration. Actinomyces naeslundii was lost from the biofilm, and the viable counts of streptococci, Fusobacterium nucleatum and Porphyromonas gingivalis were inhibited by over three orders of magnitude by 0.125% chlorhexidine, whereas Veillonella dispar was only transiently affected. The findings were consistent with those from clinical studies of dental plaque, suggesting that this model would have a predictive value when evaluating novel antiplaque or antimicrobial inhibitors.","PeriodicalId":22599,"journal":{"name":"The Journal of applied bacteriology","volume":"81 2","pages":"120-5"},"PeriodicalIF":0.0,"publicationDate":"1996-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1111/j.1365-2672.1996.tb04488.x","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"19732538","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 76

Influence of 1,10-phenanthroline and its analogues, other chelators and transition metal ions on dipeptidase activity of the rumen bacterium, Prevotella ruminicola. 1,10-菲罗啉及其类似物、其他螯合物和过渡金属离子对瘤胃普雷沃氏菌二肽酶活性的影响

The Journal of applied bacteriology Pub Date : 1996-07-01 DOI: 10.1111/j.1365-2672.1996.tb03280.x

R J Wallace, N McKain

{"title":"Influence of 1,10-phenanthroline and its analogues, other chelators and transition metal ions on dipeptidase activity of the rumen bacterium, Prevotella ruminicola.","authors":"R J Wallace, N McKain","doi":"10.1111/j.1365-2672.1996.tb03280.x","DOIUrl":"https://doi.org/10.1111/j.1365-2672.1996.tb03280.x","url":null,"abstract":"Prevotella ruminicola plays a prominent role in the breakdown of peptides in the rumen, a process which contributes to excessive ammonia production and inefficient nitrogen retention in ruminants. Various metal ions and chelators were examined to assess how the metal ion-dependent dipeptidase activity of P. ruminicola M384 might be inhibited. Using sonicated extracts, Cu2+, Cr2+ and Hg2+ were most inhibitory, decreasing Ala2 breakdown to 15, 15 and 5% of control activity, whereas Co2+, Mn2+ and Zn2+ stimulated activity by 189, 30 and 26%, respectively. The chelators, EDTA, EGTA, TPEN and 1,10-phenanthroline, were inhibitory, as were several phenanthroline analogues. Among the stereoisomers of 1,10-phenanthroline tested, derivatives methylated on C-2 and C-9 were less effective than the parent molecule, but 3,4,7,8-tetramethyl-1,10-phenanthroline (TMP) was more inhibitory. Titration of the most effective inhibitors showed that EDTA, TPEN and TMP had similar potency and were effective at 0.1 mmol l-1 and above. Thus some metal ions and chelators are potent inhibitors of P. ruminicola dipeptidase, although they are unlikely to be sufficiently specific to peptide metabolism to be useful in vivo.","PeriodicalId":22599,"journal":{"name":"The Journal of applied bacteriology","volume":"81 1","pages":"42-7"},"PeriodicalIF":0.0,"publicationDate":"1996-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1111/j.1365-2672.1996.tb03280.x","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"19651175","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 14

Antimicrobial activity of lactic acid bacteria isolated from goat's milk and artisanal cheeses: characteristics of a bacteriocin produced by Lactobacillus curvatus IFPL 105. 从羊奶和手工奶酪中分离的乳酸菌的抗菌活性:弯曲乳杆菌IFPL 105产生的细菌素的特性。

The Journal of applied bacteriology Pub Date : 1996-07-01 DOI: 10.1111/j.1365-2672.1996.tb03279.x

D Casla, T Requena, R Gómez

{"title":"Antimicrobial activity of lactic acid bacteria isolated from goat's milk and artisanal cheeses: characteristics of a bacteriocin produced by Lactobacillus curvatus IFPL 105.","authors":"D Casla, T Requena, R Gómez","doi":"10.1111/j.1365-2672.1996.tb03279.x","DOIUrl":"https://doi.org/10.1111/j.1365-2672.1996.tb03279.x","url":null,"abstract":"A total of 203 lactic acid bacteria isolated from raw goat's milk and artisanal cheese were tested for antibacterial activity. Only two strains of Lactococcus lactis, one strain of Enterococcus faecalis and one strain of Lactobacillus curvatus were shown to produce a bacteriocin-like substance. Lactobacillus curvatus IFPL105 produced a heat-stable bacteriocin, which was hydrolysed by alpha-chymotrypsin, proteinase K and pancreatin and exhibited a broad spectrum of inhibitory activity. The bactericidal activity of the bacteriocin was more potent when sensitive strains were in the logarithmic growth phase, inducing cell lysis, as observed by decreases in optical density and release of intracellular marker enzymes. Curing experiments resulted in variants that lacked both bacteriocin activity and immunity to the bacteriocin. Plasmid profile analysis of the parental strain and the bacteriocin-negative variants indicated that a plasmid of about 46 kbp may be involved in bacteriocin production and immunity to this antibacterial compound.","PeriodicalId":22599,"journal":{"name":"The Journal of applied bacteriology","volume":"81 1","pages":"35-41"},"PeriodicalIF":0.0,"publicationDate":"1996-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1111/j.1365-2672.1996.tb03279.x","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"19651174","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 99

Phylogenetic characterization of a novel salt-tolerant Bacillus species: description of Bacillus dipsosauri sp. nov. 一种耐盐芽孢杆菌的系统发育特征:双索芽孢杆菌的描述。

The Journal of applied bacteriology Pub Date : 1996-07-01 DOI: 10.1111/j.1365-2672.1996.tb03289.x

P A Lawson, C E Deutch, M D Collins

引用次数: 41

The lethal effects of biguanides on cysts and trophozoites of Acanthamoeba castellanii. 双胍类药物对棘阿米巴囊体和滋养体的致死作用。

The Journal of applied bacteriology Pub Date : 1996-07-01 DOI: 10.1111/j.1365-2672.1996.tb03284.x

W Khunkitti, D Lloyd, J R Furr, A D Russell

引用次数: 56

Cross-reactivity of antibodies raised to Pseudomonas fluorescens protease with extracellular proteins produced by meat-spoiling pseudomonads. 荧光假单胞菌蛋白酶抗体与腐肉假单胞菌产生的细胞外蛋白的交叉反应性。

The Journal of applied bacteriology Pub Date : 1996-07-01 DOI: 10.1111/j.1365-2672.1996.tb03275.x

F T Lundy, A C Magee, I S Blair, D A McDowell

引用次数: 11