A metalloprotease (MprIII) involved in the chitinolytic system of a marine bacterium, Alteromonas sp. strain O-7.

abstract：:DNA microarray analyses revealed that clusters of repetitive extragenic palindromic PCR-related Escherichia coli isolates were isogenic only within interstitial Lake Huron beach water samples and not in surrounding waters. This suggested that adaptation and growth occurred within the interstitial water sites tested. A...

journal_title：Applied and environmental microbiology

authors： Kon T,Weir SC,Trevors JT,Lee H,Champagne J,Meunier L,Brousseau R,Masson L

更新日期：2007-12-01 00:00:00

abstract：:Helaeomyia petrolei larvae isolated from the asphalt seeps of Rancho La Brea in Los Angeles, Calif., were examined for microbial gut contents. Standard counts on Luria-Bertani, MacConkey, and blood agar plates indicated ca. 2 x 10(5) heterotrophic bacteria per larva. The culturable bacteria represented 15 to 20% of th...

journal_title：Applied and environmental microbiology

authors： Kadavy DR,Plantz B,Shaw CA,Myatt J,Kokjohn TA,Nickerson KW

更新日期：1999-04-01 00:00:00

abstract：:O-antigen biosynthetic (wbf) regions for Vibrio cholerae serogroups O5, O8, and O108 were isolated and sequenced. Sequences were compared to those of other published V. cholerae O-antigen regions. These wbf regions showed a high degree of heterogeneity both in gene content and in gene order. Genes identified frequentl...

journal_title：Applied and environmental microbiology

authors： Aydanian A,Tang L,Morris JG,Johnson JA,Stine OC

更新日期：2011-04-01 00:00:00

abstract：:Hot-water extracts of mesquite (Prosopis glandulosa) wood were assayed for their total carbohydrate, reducing sugar, and glucose content. These hydrolysates were then used as complete media for yeast growth. A total of 10 strains of yeasts were evaluated for their biomass production in the mesquite wood hydrolysates. ...

journal_title：Applied and environmental microbiology

authors： Stanlake GJ

更新日期：1986-08-01 00:00:00

abstract：:Fenton reactions are believed to play important roles in wood degradation by brown rot fungi. In this context, the effect of tropolone (2-hydroxycyclohepta-2,4,6-trienone), a metal chelator, on wood degradation by Poria placenta was investigated. Tropolone (50 micro M) strongly inhibits fungal growth on malt agar, but...

journal_title：Applied and environmental microbiology

authors： Diouf PN,Delbarre N,Perrin D,Gérardin P,Rapin C,Jacquot JP,Gelhaye E

更新日期：2002-09-01 00:00:00

abstract：:Indoxyl-beta-D-glucuronide (indoxyl) was evaluated as a specific chromogen for detection of Escherichia coli by the membrane filter method. In all, 413 colonies were tested from the indoxyl-supplemented media, yielding 93.3% confirmation, as E. coli. Compared with the indoxyl medium, other media gave either much lower...

journal_title：Applied and environmental microbiology

authors： Haines JR,Covert TC,Rankin CC

更新日期：1993-08-01 00:00:00

abstract：:To produce recombinant hemoglobin in Escherichia coli, sufficient intracellular heme must be present, or the protein folds improperly and is degraded. In this study, coexpression of human hemoglobin genes and Plesiomonas shigelloides heme transport genes enhanced recombinant hemoglobin production in E. coli BL21(DE3) ...

journal_title：Applied and environmental microbiology

authors： Villarreal DM,Phillips CL,Kelley AM,Villarreal S,Villaloboz A,Hernandez P,Olson JS,Henderson DP

更新日期：2008-09-01 00:00:00

abstract：:Efficient production of heterologous proteins with yeasts and other eukaryotic hosts is often hampered by inefficient secretion of the product. Limitation of protein secretion has been attributed to a low folding rate, and a rational solution is the overexpression of proteins supporting folding, like protein disulfide...

journal_title：Applied and environmental microbiology

authors： Gasser B,Sauer M,Maurer M,Stadlmayr G,Mattanovich D

更新日期：2007-10-01 00:00:00

abstract：:Enrichment was performed to isolate organisms that could utilize reduced phosphorus compounds as their sole phosphorus sources. One isolate that grew well with either hypophosphite or phosphite was identified by 16S rRNA gene analysis as a strain of Alcaligenes faecalis. The genes required for oxidation of hypophosphi...

journal_title：Applied and environmental microbiology

authors： Wilson MM,Metcalf WW

更新日期：2005-01-01 00:00:00

abstract：:Ammonia-oxidizing bacteria (AOB) are thought to contribute significantly to N2O production and methane oxidation in soils. Most of our knowledge derives from experiments with Nitrosomonas europaea, which appears to be of minor importance in most soils compared to Nitrosospira spp. We have conducted a comparative study...

journal_title：Applied and environmental microbiology

authors： Jiang QQ,Bakken LR

更新日期：1999-06-01 00:00:00

abstract：:In Pseudomonas fluorescens CHA0, mutation of the GacA-controlled aprA gene (encoding the major extracellular protease) or the gacA regulatory gene resulted in reduced biocontrol activity against the root-knot nematode Meloidogyne incognita during tomato and soybean infection. Culture supernatants of strain CHA0 inhibi...

journal_title：Applied and environmental microbiology

authors： Siddiqui IA,Haas D,Heeb S

更新日期：2005-09-01 00:00:00

abstract：:We examined the competitive relationship between two isolates of denitrifying bacteria, both of which grow well under aerobic conditions but differ in their ability to grow under denitrifying conditions. The growth and persistence of the two isolates, added to sterile soil or added to soil previously colonized by the ...

journal_title：Applied and environmental microbiology

authors： Murray RE,Parsons LL,Smith MS

更新日期：1992-12-01 00:00:00

abstract：:The intracellular pathogens Legionella micdadei and Legionella pneumophila are the two most common Legionella species that cause Legionnaires' disease. Intracellular replication within pulmonary cells is the hallmark of Legionnaires' disease. In the environment, legionellae are parasites of protozoans, and intracellul...

journal_title：Applied and environmental microbiology

authors： Abu Kwaik Y,Venkataraman C,Harb OS,Gao LY

更新日期：1998-09-01 00:00:00

abstract：:Environmental studies of the human-pathogenic bacterium Campylobacter jejuni have focused on linking distributions with potential sources. However, in aquatic ecosystems, the abundance of C. jejuni may also be regulated by predation. We examine the potential for grazing by the freshwater planktonic crustacean Daphnia ...

journal_title：Applied and environmental microbiology

authors： Schallenberg M,Bremer PJ,Henkel S,Launhardt A,Burns CW

更新日期：2005-09-01 00:00:00

abstract：:Ruminococcus albus 8 is a ruminal bacterium capable of metabolizing hemicellulose and cellulose, the major components of the plant cell wall. The enzymes that allow this bacterium to capture energy from the two polysaccharides, therefore, have potential application in plant cell wall depolymerization, a process critic...

journal_title：Applied and environmental microbiology

authors： Moon YH,Iakiviak M,Bauer S,Mackie RI,Cann IK

更新日期：2011-08-01 00:00:00

abstract：:Conjugal transfer of lactose-fermenting ability (Lac+), nisin resistance (Nisr), and phage resistance (Hsp+) was demonstrated in matings between Streptococcus lactis ME2 (donor) and Streptococcus cremoris M43a (recipient), a derivative of M12R. Transconjugants were detected by transfer of Lac+ and were found to exhibi...

journal_title：Applied and environmental microbiology

authors： Steenson LR,Klaenhammer TR

更新日期：1985-10-01 00:00:00

abstract：:We found that a robust energy taxis response mediated by the Aer receptor can sometimes mask chemotaxis mediated by other methyl-accepting chemotaxis proteins (MCPs) in Pseudomonas aeruginosa. We identified PA2652 as a chemoreceptor for malate by screening aer mcp double mutants by using swarm plate assays. ...

journal_title：Applied and environmental microbiology

authors： Alvarez-Ortega C,Harwood CS

更新日期：2007-12-01 00:00:00

abstract：:There is growing evidence that anthropogenic sources of antibiotics and antimicrobial-resistant bacteria can spill over into natural ecosystems, raising questions about the role wild animals play in the emergence, maintenance, and dispersal of antibiotic resistance genes. In particular, we lack an understanding of how...

journal_title：Applied and environmental microbiology

authors： Miller EA,Johnson TJ,Omondi G,Atwill ER,Isbell LA,McCowan B,VanderWaal K

更新日期：2018-12-13 00:00:00

abstract：:Primers were designed to target 16S rRNA and nodD genes of Rhizobium leguminosarum from DNA extracted from two different soil types contaminated with Zn applied in sewage sludge. Numbers of rhizobia estimated using 16S rRNA gene copy number showed higher abundance than those estimated by both nodD and the most-probabl...

journal_title：Applied and environmental microbiology

authors： Macdonald CA,Clark IM,Hirsch PR,Zhao FJ,McGrath SP

更新日期：2011-07-01 00:00:00

abstract：:We have found a remarkable capacity for the ubiquitous Gram-negative rod bacterium Serratia marcescens to migrate along and kill the mycelia of zygomycete molds. This migration was restricted to zygomycete molds and several basidiomycete species. No migration was seen on any molds of the phylum Ascomycota. S. marcesce...

journal_title：Applied and environmental microbiology

authors： Hover T,Maya T,Ron S,Sandovsky H,Shadkchan Y,Kijner N,Mitiagin Y,Fichtman B,Harel A,Shanks RM,Bruna RE,García-Véscovi E,Osherov N

更新日期：2016-04-18 00:00:00

abstract：:The continuous addition of toluene as a solute of treated ballast water from oil tankers into a well-defined estuary facilitated the study of the dynamics of dissolved hydrocarbon metabolism in seawater. Most rates of toluene oxidation were in the range of 1 to 30 pg/liter per h at 0.5 mug of toluene per liter. Near t...

journal_title：Applied and environmental microbiology

authors： Button DK,Robertson BR,Craig KS

更新日期：1981-10-01 00:00:00

abstract：:There is much interest in the use of seed-applied bacteria for biocontrol and biofertilization, and several commercial products are available. However, many attempts to use this strategy fail because the seed-applied bacteria do not colonize the rhizosphere. Mechanisms of rhizosphere colonization may involve active ba...

journal_title：Applied and environmental microbiology

authors： Knox OG,Killham K,Artz RR,Mullins C,Wilson M

更新日期：2004-08-01 00:00:00

abstract：:A new strategy for the detection of infectious Cryptosporidium parvum oocysts in water samples, which combines immunomagnetic separation (IMS) for recovery of oocysts with in vitro cell culturing and PCR (CC-PCR), was field tested with a total of 122 raw source water samples and 121 filter backwash water grab samples ...

journal_title：Applied and environmental microbiology

authors： Di Giovanni GD,Hashemi FH,Shaw NJ,Abrams FA,LeChevallier MW,Abbaszadegan M

更新日期：1999-08-01 00:00:00

abstract：:Lactococcus lactis subsp. cremoris MG1363 is a model for the lactic acid bacteria (LAB) used in the dairy industry. The proteolytic system, consisting of a proteinase, several peptide and amino acid uptake systems, and a host of intracellular peptidases, plays a vital role in nitrogen metabolism and is of eminent impo...

journal_title：Applied and environmental microbiology

authors： Huang C,Hernandez-Valdes JA,Kuipers OP,Kok J

更新日期：2020-04-01 00:00:00

abstract：:Flavonoids are 15-carbon plant secondary metabolites exuded in the rhizosphere that hosts several flavonoid-degrading bacteria. We studied flavonoid catabolism in a plant growth-promoting rhizobacterial strain of Pseudomonas by using a combination of biochemical and genetic approaches. Transposants carrying mini-Tn5gf...

journal_title：Applied and environmental microbiology

authors： Pillai BV,Swarup S

更新日期：2002-01-01 00:00:00

abstract：:Peat bogs dominated by Sphagnum spp. have relatively high areal rates of dimethyl sulfide (DMS) emission to the atmosphere. DMS was produced in anoxic slurries of Sphagnum peat with a linear time course and with an average rate of 40.4 (range, 22.0 to 68.6) nmol per liter of slurry (middot) day(sup-1) observed in nine...

journal_title：Applied and environmental microbiology

authors： Kiene RP,Hines ME

更新日期：1995-07-01 00:00:00

abstract：:A total of 896 samples of retail fresh meats and poultry was assayed for Escherichia coli serogroup O157:H7 by a hydrophobic grid membrane filter-immunoblot procedure developed specifically to isolate the organism from foods. The procedure involves several steps, including selective enrichment, filtration of enrichmen...

journal_title：Applied and environmental microbiology

authors： Doyle MP,Schoeni JL

更新日期：1987-10-01 00:00:00

abstract：:The kinetics of oxygen reduction by Desulfovibrio salexigens Mast1 and the role of polyglucose in this activity were examined and compared with those of strains of D. desulfuricans and D. gigas. Oxidation rates were highest at air saturation (up to 40 nmol of O(2) min mg of protein) and declined with decreasing oxygen...

journal_title：Applied and environmental microbiology

authors： van Niel EW,Gottschal JC

更新日期：1998-03-01 00:00:00

abstract：:The combination of ecological diversity with genetic and experimental tractability makes Drosophila a powerful model for the study of animal-associated microbial communities. Despite the known importance of yeasts in Drosophila physiology, behavior, and fitness, most recent work has focused on Drosophila-bacterial int...

journal_title：Applied and environmental microbiology

authors： Chandler JA,Eisen JA,Kopp A

更新日期：2012-10-01 00:00:00

abstract：:Natural denitrification rates and activities of denitrifying enzymes were measured in an agricultural soil which had a 20-year past history of low pH (pH ca. 4) due to fertilization with acid-generating ammonium salts. The soil adjacent to this site had been limed and had a pH of ca. 6.0. Natural denitrification rates...

journal_title：Applied and environmental microbiology

authors： Parkin TB,Sexstone AJ,Tiedje JM

更新日期：1985-05-01 00:00:00