Selection of Streptomyces ambofaciens mutants that produce large quantities of spiramycin and determination of optimal conditions for spiramycin production.

abstract：:During submerged culture in the presence of glucose and glutamate, the filamentous fungus Monascus ruber produces water-soluble red pigments together with citrinin, a mycotoxin with nephrotoxic and hepatoxic effects on animals. Analysis of the (13)C-pigment molecules from mycelia cultivated with [1-(13)C]-, [2-(13)C]-...

journal_title：Applied and environmental microbiology

authors： Hajjaj H,Klaébé A,Goma G,Blanc PJ,Barbier E,François J

更新日期：2000-03-01 00:00:00

abstract：:Epifluorescent microscopy and flow cytometry were used in different combinations with fluorescein isothiocyanate-labeled immunoglobulins M and G3 to estimate the numbers of Cryptosporidium parvum oocysts in soil extracts containing 10 to 10,017 oocysts/ml. No combination had a systematic effect on accuracy or precisio...

journal_title：Applied and environmental microbiology

authors： Walker M,Redelman D

更新日期：2004-03-01 00:00:00

abstract：:Perchlorate is a known health hazard for humans, fish, and other species. Therefore, it is important to assess the response of an ecosystem exposed to perchlorate contamination. The data reported here show that a liquid chromatography-mass spectrometry-based proteomics approach for the detection of perchlorate-reducin...

journal_title：Applied and environmental microbiology

authors： Bansal R,Crawford RL,Paszczynski AJ

更新日期：2011-02-01 00:00:00

abstract：:Inactivation of infectious viruses during drinking water treatment is usually achieved with free chlorine. Many drinking water utilities in the United States now use monochloramine as a secondary disinfectant to minimize disinfectant by-product formation and biofilm growth. The inactivation of human adenoviruses 2, 40...

journal_title：Applied and environmental microbiology

authors： Cromeans TL,Kahler AM,Hill VR

更新日期：2010-02-01 00:00:00

abstract：:A new bacterial pathogen of chinook salmon (oncorhynchus tshawytscha) was isolated from fish in Oregon's Rogue River. The bacteria are biochemically and serologically related to strains of Edwardsiella tarda. Initially isolated from chinook salmon, the bacteria were also pathogenic for steelhead and rainbow trout (Sal...

journal_title：Applied and environmental microbiology

authors： Amandi A,Hiu SF,Rohovec JS,Fryer JL

更新日期：1982-06-01 00:00:00

abstract：:This study was performed to determine the effects of feeding a fiber-rich fraction of Brassica vegetables on the immune response through changes in enteric bacteria and short-chain fatty acid (SCFA) production in normal mice. The boiled-water-insoluble fraction of Brassica rapa L. (nozawana), which consists mainly of ...

journal_title：Applied and environmental microbiology

authors： Tanaka S,Yamamoto K,Yamada K,Furuya K,Uyeno Y

更新日期：2016-04-18 00:00:00

abstract：:Geographical and seasonal variation in the incidence and prevalence of Campylobacter jejuni and C. coli in housed broiler flocks reared in Great Britain in 2004 to 2006 was investigated in this study. Ceca (30) from 797 flocks, not subject to prior partial depopulation and reared on 211 farms, were examined individual...

journal_title：Applied and environmental microbiology

authors： Jorgensen F,Ellis-Iversen J,Rushton S,Bull SA,Harris SA,Bryan SJ,Gonzalez A,Humphrey TJ

更新日期：2011-06-01 00:00:00

abstract：:Haa1 is a transcription factor that adapts Saccharomyces cerevisiae cells to weak organic acid stresses by activating the expression of various genes. Many of these genes encode membrane proteins, such as TPO2 and YRO2 How Haa1 is activated by weak acids is not clear. Here, we show that casein kinase I isoform Hrr25 i...

journal_title：Applied and environmental microbiology

authors： Collins ME,Black JJ,Liu Z

更新日期：2017-06-16 00:00:00

abstract：:Portions of published procedures for measurement of ergosterol content of decomposing plants were examined for their influence upon ergosterol yield. Common methods of treatment of plant samples prior to sterol extraction (e.g., oven drying, freezing, lyophilization) led to reduced recoveries of ergosterol (ca. 20 to ...

journal_title：Applied and environmental microbiology

authors： Newell SY,Arsuffi TL,Fallon RD

更新日期：1988-07-01 00:00:00

abstract：:Differences in individual host responses have emerged as an issue regarding the health benefits of probiotics. Here, we applied ribosome engineering (RE) technology, developed in an actinomycete study, to Lacticaseibacillus rhamnosus GG (LGG). RE can effectively enhance microbial potential by using antibiotics to indu...

journal_title：Applied and environmental microbiology

authors： Ishida M,Namai F,Shigemori S,Kajikawa S,Tsukagoshi M,Sato T,Ogita T,Shimosato T

更新日期：2020-10-01 00:00:00

abstract：:Listeria monocytogenes strains are classified in at least three distinct phylogenetic lineages. There are correlations between lineage classification and source of bacterial isolation; e.g., human clinical and food isolates usually are classified in either lineage I or II. However, human clinical isolates are overrepr...

journal_title：Applied and environmental microbiology

authors： Oliver HF,Orsi RH,Wiedmann M,Boor KJ

更新日期：2010-07-01 00:00:00

abstract：:To produce high levels of β-lactams, the filamentous fungus Penicillium rubens (previously named Penicillium chrysogenum) has been subjected to an extensive classical strain improvement (CSI) program during the last few decades. This has led to the accumulation of many mutations that were spread over the genome. Detai...

journal_title：Applied and environmental microbiology

authors： Wu M,Crismaru CG,Salo O,Bovenberg RAL,Driessen AJM

更新日期：2020-01-21 00:00:00

abstract：:A molecular diagnostic system using single nucleotide polymorphisms (SNPs) was developed to identify four Sclerotinia species: S. sclerotiorum (Lib.) de Bary, S. minor Jagger, S. trifoliorum Erikss., and the undescribed species Sclerotinia species 1. DNAs of samples are hybridized with each of five 15-bp oligonucleoti...

journal_title：Applied and environmental microbiology

authors： Andrew M,Kohn LM

更新日期：2009-09-01 00:00:00

abstract：UNLABELLED:By combining genomics and isotope imaging analysis using high-resolution secondary ion mass spectrometry (NanoSIMS), we examined the function and evolution of Bacteroidales ectosymbionts of the protist Barbulanympha from the hindguts of the wood-eating cockroach Cryptocercus punctulatus In particular, we inv...

journal_title：Applied and environmental microbiology

authors： Tai V,Carpenter KJ,Weber PK,Nalepa CA,Perlman SJ,Keeling PJ

更新日期：2016-07-15 00:00:00

abstract：:A survey was made to detect the sensitivity of 12 yeast genera to T-2 toxin. Seventy-five yeasts isolated from various sources were tested for their susceptibility to T-2 toxin. The MIC of T-2 for these yeasts varied from 1.0 to greater than 8.0 micrograms/ml. Of the yeasts studied, Kluyveromyces fragilis showed the g...

journal_title：Applied and environmental microbiology

authors： Sukroongreung S,Schappert KT,Khachatourians GG

更新日期：1984-08-01 00:00:00

abstract：:Crenarchaeol, a membrane-spanning glycerol dialkyl glycerol tetraether (GDGT) containing a cyclohexane moiety in addition to four cyclopentane moieties, was originally hypothesized to be synthesized exclusively by the mesophilic Crenarchaeota. Recent studies reporting the occurrence of crenarchaeol in hot springs and ...

journal_title：Applied and environmental microbiology

authors： Pitcher A,Schouten S,Sinninghe Damsté JS

更新日期：2009-07-01 00:00:00

abstract：:The anaerobic bacterium Eubacterium lentum, a common constituent of the intestinal microflora, inactivates digoxin by reducing the unsaturated lactone ring. Reduction of the cardiac glycoside by growing cultures of E. lentum ATCC 25559 proceeded in a stereospecific manner, with the 20R-dihydrodigoxin constituting more...

journal_title：Applied and environmental microbiology

authors： Robertson LW,Chandrasekaran A,Reuning RH,Hui J,Rawal BD

更新日期：1986-06-01 00:00:00

abstract：:The fungus Cunninghamella elegans ATCC 36112 metabolized approximately 80% of the 3-14C-labeled fluoranthene (FA) added within 72 h of incubation. C. elegans metabolized FA to trans-2,3-dihydroxy-2,3-dihydrofluoranthene (trans-2,3-dihydrodiol), 8- and 9-hydroxyfluoranthene trans-2,3-dihydrodiol, 3-fluoranthene-beta-gl...

journal_title：Applied and environmental microbiology

authors： Pothuluri JV,Freeman JP,Evans FE,Cerniglia CE

更新日期：1990-10-01 00:00:00

abstract：:Here we describe novel forms of structural integration between endo- and episymbiotic microbes and an unusual new species of snail from hydrothermal vents in the Indian Ocean. The snail houses a dense population of gamma-proteobacteria within the cells of its greatly enlarged esophageal gland. This tissue setting diff...

journal_title：Applied and environmental microbiology

authors： Goffredi SK,Warén A,Orphan VJ,Van Dover CL,Vrijenhoek RC

更新日期：2004-05-01 00:00:00

abstract：:Several members of the glycoside hydrolase 61 (GH61) family of proteins have recently been shown to dramatically increase the breakdown of lignocellulosic biomass by microbial hydrolytic cellulases. However, purified GH61 proteins have neither demonstrable direct hydrolase activity on various polysaccharide or lignaci...

journal_title：Applied and environmental microbiology

authors： Langston JA,Shaghasi T,Abbate E,Xu F,Vlasenko E,Sweeney MD

更新日期：2011-10-01 00:00:00

abstract：:Histological observations were made on the penetration of hyphae of Rhizopus oligosporus into soybean cotyledons in tempeh, an Indonesian soybean food. Hyphal penetrations averaged one per 1,400 mum (+/-390 mum) on the curved (outer) cotyledon surface and one per 1,010 mum (+/-340 mum) on the flat (inner) one. Hyphae ...

journal_title：Applied and environmental microbiology

authors： Jurus AM,Sundberg WJ

更新日期：1976-08-01 00:00:00

abstract：:The presence of human-pathogenic, enteric bacteria on the surface and in the interior of raw produce is a significant health concern. Several aspects of the biology of the interaction between these bacteria and alfalfa (Medicago sativa) seedlings are addressed here. A collection of enteric bacteria associated with alf...

journal_title：Applied and environmental microbiology

authors： Dong Y,Iniguez AL,Ahmer BM,Triplett EW

更新日期：2003-03-01 00:00:00

abstract：:Biofilm-associated bacteria are less sensitive to antibiotics than free-living (planktonic) cells. Furthermore, with variations in the concentration of antibiotics throughout a biofilm, microbial cells are often exposed to levels below inhibitory concentrations and may develop resistance. This, as well as the irrespon...

journal_title：Applied and environmental microbiology

authors： Algburi A,Comito N,Kashtanov D,Dicks LMT,Chikindas ML

更新日期：2017-01-17 00:00:00

abstract：:Campylobacter jejuni is a pathogenic, microaerophilic, gram-negative, mesophilic bacterium. Three strains isolated from humans with enteric campylobacteriosis were able to survive at high population levels (10(7) cells ml-1) as viable-but-nonculturable (VBNC) forms in microcosm water. The VBNC forms of the three C. je...

journal_title：Applied and environmental microbiology

authors： Tholozan JL,Cappelier JM,Tissier JP,Delattre G,Federighi M

更新日期：1999-03-01 00:00:00

abstract：:A gene encoding a putative 150-amino-acid methylglyoxal synthase was identified in Clostridium acetobutylicum ATCC 824. The enzyme was overexpressed in Escherichia coli and purified. Methylglyoxal synthase has a native molecular mass of 60 kDa and an optimum pH of 7.5. The Km and Vmax values for the substrate dihydrox...

journal_title：Applied and environmental microbiology

authors： Huang K,Rudolph FB,Bennett GN

更新日期：1999-07-01 00:00:00

abstract：:Pulsed-field gel electrophoresis established the linkage between recalled chocolate milk and a multistate invasive listeriosis outbreak during a four-product recall period. Listeria monocytogenes isolates from four hospitalized patients and an environmental dairy sample displayed AscI restriction endonuclease digestio...

journal_title：Applied and environmental microbiology

authors： Proctor ME,Brosch R,Mellen JW,Garrett LA,Kaspar CW,Luchansky JB

更新日期：1995-08-01 00:00:00

abstract：:Plant polysaccharide breakdown by microbes in the rumen is fundamental to digestion in ruminant livestock. Bacterial species belonging to the rumen genera Butyrivibrio and Pseudobutyrivibrio are important degraders and utilizers of lignocellulosic plant material. These bacteria degrade polysaccharides and ferment the ...

journal_title：Applied and environmental microbiology

authors： Palevich N,Kelly WJ,Leahy SC,Denman S,Altermann E,Rakonjac J,Attwood GT

更新日期：2019-12-13 00:00:00

abstract：:Among 1,962 bacterial isolates from a smear-surface soft cheese (Munster cheese) screened for activity against Listeria monocytogenes, six produced antilisterial compounds other than organic acids. The bacterial strain WHE 92, which displayed the strongest antilisterial effect, was identified at the DNA level as Lacto...

journal_title：Applied and environmental microbiology

authors： Ennahar S,Aoude-Werner D,Sorokine O,Van Dorsselaer A,Bringel F,Hubert JC,Hasselmann C

更新日期：1996-12-01 00:00:00

abstract：:We show that Rhodococcus chlorophenolicus PCP-I, a polychlorophenol degrader, also degrades various chlorine-substituted guaiacols (2-methoxyphenols) and syringols (2,6-dimethoxyphenols). The substrates investigated were tetrachloroguaiacol, 3,4,6- and 3,5,6-trichloroguaiacol, 3,5- and 3,6-dichloroguaiacol, trichloros...

journal_title：Applied and environmental microbiology

authors： Häggblom MM,Apajalahti JH,Salkinoja-Salonen MS

更新日期：1988-03-01 00:00:00

abstract：:Listeria app, isolated from 13 of 129 (10%) corn silage samples, 21 of 76 (28%) hay silage samples, and 3 of 5 (60%) grass silage samples during a previous Vermont survey were subjected to automated ribotype (RT) analysis. The 13 positive corn silage samples contained 3 Listeria monocytogenes isolated (three RTs, incl...

journal_title：Applied and environmental microbiology

authors： Ryser ET,Arimi SM,Donnelly CW

更新日期：1997-09-01 00:00:00