Retrieval of concentrated and undecompressed microbial populations from the deep sea.

abstract：:Human noroviruses are excreted in feces from infected individuals and included in wastewater. It is critical to remove/inactivate them in wastewater treatment processes, particularly in the disinfection step, before release to aquatic environments. However, the high mutation rates of human noroviruses raise concerns a...

journal_title：Applied and environmental microbiology

authors： Rachmadi AT,Kitajima M,Watanabe K,Yaegashi S,Serrana J,Nakamura A,Nakagomi T,Nakagomi O,Katayama K,Okabe S,Sano D

更新日期：2018-06-18 00:00:00

abstract：:N-acylhomoserine lactones (AHLs) are signaling molecules in many quorum-sensing (QS) systems that regulate interactions between various pathogenic bacteria and their hosts. Quorum quenching by the enzymatic inactivation of AHLs holds great promise in preventing and treating infections, and several such enzymes have be...

journal_title：Applied and environmental microbiology

authors： Mei GY,Yan XX,Turak A,Luo ZQ,Zhang LQ

更新日期：2010-08-01 00:00:00

abstract：:Recombinant sucrose-6-phosphate synthase (SpsA) was synthesized in Escherichia coli BL21DE3 by using the spsA gene of the cyanobacterium Synechocystis sp. strain PCC 6803. Transformants exhibited a 10,000-fold increase in survival compared to wild-type cells following either freeze-drying, air drying, or desiccation o...

journal_title：Applied and environmental microbiology

authors： Billi D,Wright DJ,Helm RF,Prickett T,Potts M,Crowe JH

更新日期：2000-04-01 00:00:00

abstract：:Bacillus thuringiensis vegetative insecticidal proteins (Vip3A) have been recently introduced in important crops as a strategy to delay the emerging resistance to the existing Cry toxins. The mode of action of Vip3A proteins has been studied in Spodoptera frugiperda with the aim of characterizing their binding to the ...

journal_title：Applied and environmental microbiology

authors： Chakroun M,Ferré J

更新日期：2014-10-01 00:00:00

abstract：:Soils harbor enormously diverse bacterial populations, and soil bacterial communities can vary greatly in composition across space. However, our understanding of the specific changes in soil bacterial community structure that occur across larger spatial scales is limited because most previous work has focused on eithe...

journal_title：Applied and environmental microbiology

authors： Lauber CL,Hamady M,Knight R,Fierer N

更新日期：2009-08-01 00:00:00

abstract：:Parasitic chytrid fungi can inflict significant mortality on cyanobacteria but frequently fail to keep cyanobacterial dominance and bloom formation in check. Our study tested whether oligopeptide production, a common feature in many cyanobacteria, can be a defensive mechanism against chytrid parasitism. The study empl...

journal_title：Applied and environmental microbiology

authors： Rohrlack T,Christiansen G,Kurmayer R

更新日期：2013-04-01 00:00:00

abstract：:Six strains of Clostridium thermocellum isolated from various environments were characterized as to growth rate, production of reducing sugars, ethanol, and acetic acid from cellulose, base composition of DNA, and the abilities to adapt to ethanol and to grow at 45 degrees C. Five of the six new isolates produced 7 to...

journal_title：Applied and environmental microbiology

authors： Bender J,Vatcharapijarn Y,Jeffries TW

更新日期：1985-03-01 00:00:00

abstract：:Simultaneous production of penicillic acid and patulin by an atypical strain of Penicillium roqueforti isolated from cheddar cheese is reported. Mycotoxin production was confirmed by thin-layer and gas-liquid chromatography and by ultraviolet, infrared, and mass spectral analyses. Culture extracts were toxic to Bacill...

journal_title：Applied and environmental microbiology

authors： Olivigni FJ,Bullerman LB

更新日期：1978-02-01 00:00:00

abstract：:Arctic ground squirrels (Urocitellus parryii) are active for a scant 3 to 5 months of the year. During the active season, adult squirrels compete for mates, reproduce, and fatten in preparation for hibernation, while juvenile squirrels, weaned in early July, must grow and acquire sufficient fat to survive their first ...

journal_title：Applied and environmental microbiology

authors： Stevenson TJ,Buck CL,Duddleston KN

更新日期：2014-07-01 00:00:00

abstract：:Trichoderma species isolated from water-damaged buildings were screened for toxicity by using boar sperm cells as indicator cells. The crude methanolic cell extract from Trichoderma harzianum strain ES39 inhibited the boar sperm cell motility at a low exposure concentration (50% effective concentration, 1 to 5 microg ...

journal_title：Applied and environmental microbiology

authors： Peltola J,Ritieni A,Mikkola R,Grigoriev PA,Pócsfalvi G,Andersson MA,Salkinoja-Salonen MS

更新日期：2004-08-01 00:00:00

abstract：:In the natural environment, most of the phages that target bacteria are thought to exist in biofilm ecosystems. The purpose of this study was to gain a clearer understanding of the reactivity of these viral particles when they come into contact with bacteria embedded in biofilms. Experimentally, we quantified lactococ...

journal_title：Applied and environmental microbiology

authors： Briandet R,Lacroix-Gueu P,Renault M,Lecart S,Meylheuc T,Bidnenko E,Steenkeste K,Bellon-Fontaine MN,Fontaine-Aupart MP

更新日期：2008-04-01 00:00:00

abstract：:In raw sludges and in mesophilically and thermophilically digested anaerobic sludges, large variations in numbers of viruses occurred over narrow ranges of numbers of fecal coliforms, total coliforms, and fecal streptococci, demonstrating that the bacteria were poor quantitative reflectors of the numbers of the viruse...

journal_title：Applied and environmental microbiology

authors： Berg G,Berman D

更新日期：1980-02-01 00:00:00

abstract：:Vegetative mycelia and spores of the investigated high- and low-producer strains of Streptomyces griseus bound significant amounts (4%) of streptomycin, which could be removed by increasing ionic strength. The release of antibiotic from the spores was easier when the spores were germinating. This phenomenon is conside...

journal_title：Applied and environmental microbiology

authors： Szabó I,Benedek A,Barabás G

更新日期：1985-08-01 00:00:00

abstract：:Streptococcus mutans 6715-15 and Streptococcus sanguis 10558 were grown together in continuous culture with glucose as the limiting carbon source. The relationship of growth rate to substrate concentration was determined for pure cultures of each organism in continuous and batch cultures. A model based on competition ...

journal_title：Applied and environmental microbiology

authors： Kemp CW,Robrish SA,Curtis MA,Sharer SA,Bowen WH

更新日期：1983-04-01 00:00:00

abstract：:A heat-stable extracellular protease from Pseudomonas fluorescens was purified by chromatography on a DEAE-cellulose column and gel filtration on a Sephadex G100 column. The homogeneous enzyme preparation was used to prepare antiserum in rabbits. The rabbit antiserum was used to study the antigenic relatedness of prot...

journal_title：Applied and environmental microbiology

authors： Jackman DM,Bartlett FM,Patel TR

更新日期：1983-07-01 00:00:00

abstract：:Values of Delta(34)S (=delta(34)S(HS)-delta(34)S(SO(4)), where delta(34)S(HS) and delta(34)S(SO(4)) indicate the differences in the isotopic compositions of the HS(-) and SO(4)(2-) in the eluent, respectively) for many modern marine sediments are in the range of -55 to -75 per thousand, much greater than the -2 to -46...

journal_title：Applied and environmental microbiology

authors： Davidson MM,Bisher ME,Pratt LM,Fong J,Southam G,Pfiffner SM,Reches Z,Onstott TC

更新日期：2009-09-01 00:00:00

abstract：:Microorganisms in diverse terrestrial surface and subsurface environments can anaerobically catalyze the oxidative dissolution of uraninite. While a limited quantity (∼5 to 12 μmol liter(-1)) of uranium is oxidatively dissolved in pure culture studies, the metabolism is coupled to electron transport, providing the pot...

journal_title：Applied and environmental microbiology

authors： Weber KA,Thrash JC,Van Trump JI,Achenbach LA,Coates JD

更新日期：2011-07-01 00:00:00

abstract：:Ethane oxidation was studied in ethane-grown resting cells (mycelia) of an Acremonium sp. and in cell-free preparations of such mycelia. From resting cell experiments evidence was found for a pathway of ethane oxidation via ethanol, acetaldehyde, and acetic acid. In vitro studies indicated that ethane-oxidizing activi...

journal_title：Applied and environmental microbiology

authors： Davies JS,Wellman AM,Zajic JE

更新日期：1976-07-01 00:00:00

abstract：:The effects of aflatoxin on egg production, fertility, hatchability, and progeny performance were investigated by feeding dietary aflatoxin at dose levels of 0,5, and 10 mug/g to mature broiler breeder hens for 4 weeks. Sixteen hens were used for each dietary dose level. Egg production decreased significantly during w...

journal_title：Applied and environmental microbiology

authors： Howarth B Jr,Wyatt RD

更新日期：1976-05-01 00:00:00

abstract：:Chlorhexidine (CHX) is a broad-spectrum antiseptic widely used in community and clinical contexts for many years that has recently acquired higher relevance in nosocomial infection control worldwide. Despite this, CHX tolerance among Enterococcus faecium bacteria, representing one of the leading agents causing nosocom...

journal_title：Applied and environmental microbiology

authors： Duarte B,Pereira AP,Freitas AR,Coque TM,Hammerum AM,Hasman H,Antunes P,Peixe L,Novais C

更新日期：2019-11-14 00:00:00

abstract：:Vibrio vulnificus is a human pathogen associated with consumption of raw oysters. During the colder months the organism apparently enters a viable but nonculturable state and thus cannot be cultured by ordinary bacteriological methods. For this reason, another means of detecting this bacterium is necessary. In the pre...

journal_title：Applied and environmental microbiology

authors： Brauns LA,Hudson MC,Oliver JD

更新日期：1991-09-01 00:00:00

abstract：:The fate of selenium in the environment is controlled, in part, by microbial selenium oxyanion reduction and Se(0) precipitation. In this study, we identified a genetic regulator that controls selenate reductase activity in the Se-reducing bacterium Enterobacter cloacae SLD1a-1. Heterologous expression of the global a...

journal_title：Applied and environmental microbiology

authors： Yee N,Ma J,Dalia A,Boonfueng T,Kobayashi DY

更新日期：2007-03-01 00:00:00

abstract：:Two new nickel-resistant strains of Alcaligenes species were selected from a large number (about 400) of strains isolated from ecosystems polluted by heavy metals and were studied on the physiological and molecular level. Alcaligenes xylosoxydans 31A is a heterotrophic bacterium, and Alcaligenes eutrophus KTO2 is an a...

journal_title：Applied and environmental microbiology

authors： Schmidt T,Stoppel RD,Schlegel HG

更新日期：1991-11-01 00:00:00

abstract：:In a batch of barley associated with field cases of mycotoxic porcine nephropathy and containing ochratoxin A and citrinin, the mycoflora were isolated by parallel incubation at 10 and 25 degrees C. Subsequently, the isolated cultures were checked for production of nephrotoxins (xanthomegnin, viomellein, ochratoxin, a...

journal_title：Applied and environmental microbiology

authors： Hald B,Christensen DH,Krogh P

更新日期：1983-12-01 00:00:00

abstract：:A highly sensitive and specific PCR-based method of monitoring 16S rRNA genes of Pseudomonas stutzeri was developed for searching P. stutzeri DNA in environmental samples. This monitoring was combined with a reliable and sensitive method for isolating P. stutzeri colony formers from soil and sediment, depending on the...

journal_title：Applied and environmental microbiology

authors： Sikorski J,Teschner N,Wackernagel W

更新日期：2002-02-01 00:00:00

abstract：:A bacterial strain able to transform iprodione was isolated from a fast iprodione-degrading soil by enrichment procedures. Transformation was detected through 3,5-dichloroaniline production as measured by a rapid colorimetric method. The strain, MA6, was tentatively identified as an Arthrobacter sp. When it was incuba...

journal_title：Applied and environmental microbiology

authors： Athiel P,Alfizar,Mercadier C,Vega D,Bastide J,Davet P,Brunel B,Cleyet-Marel JC

更新日期：1995-09-01 00:00:00

abstract：:A novel xylanase (xylanase IV) which produces xylotetraose as the only low-molecular-weight oligosaccharide from oat spelt xylan was isolated from the culture medium of Aeromonas caviae ME-1. By sodium dodecyl sulfate-polyacrylamide gel electrophoresis, the xylanase IV molecular weight was 41,000. Xylanase IV catalyze...

journal_title：Applied and environmental microbiology

authors： Kubata BK,Takamizawa K,Kawai K,Suzuki T,Horitsu H

更新日期：1995-04-01 00:00:00

abstract：:The response of Lactobacillus delbrueckii subsp. bulgaricus cells to heat stress was studied by use of a chemically defined medium. Two-dimensional electrophoresis (2-DE) analysis was used to correlate the kinetics of heat shock protein (HSP) induction with cell recovery from heat injury. We demonstrated that enhanced...

journal_title：Applied and environmental microbiology

authors： Gouesbet G,Jan G,Boyaval P

更新日期：2002-03-01 00:00:00

abstract：:A technique to determine which nutrients limit bacterial growth in soil was developed. The method was based on measuring the thymidine incorporation rate of bacteria after the addition of C, N, and P in different combinations to soil samples. First, the thymidine incorporation method was tested in two different soils:...

journal_title：Applied and environmental microbiology

authors： Aldén L,Demoling F,Bååth E

更新日期：2001-04-01 00:00:00

abstract：:In the current study, we adapted and optimized the lambda Red recombineering strategy to genetically manipulate the fastidious insect endosymbiont Sodalis glossinidius. This work greatly facilitates the application of genetics to the study of insect symbionts and should also prove useful in the context of long-awaited...

journal_title：Applied and environmental microbiology

authors： Pontes MH,Dale C

更新日期：2011-03-01 00:00:00