Abstract:
:A major taxon of obligate marine bacteria within the order Actinomycetales has been discovered from ocean sediments. Populations of these bacteria (designated MAR 1) are persistent and widespread, spanning at least three distinct ocean systems. In this study, 212 actinomycete isolates possessing MAR 1 morphologies were examined and all but two displayed an obligate requirement of seawater for growth. Forty-five of these isolates, representing all observed seawater-requiring morphotypes, were partially sequenced and found to share characteristic small-subunit rRNA signature nucleotides between positions 207 and 468 (Escherichia coli numbering). Phylogenetic characterization of seven representative isolates based on almost complete sequences of genes encoding 16S rRNA (16S ribosomal DNA) yielded a monophyletic clade within the family Micromonosporaceae and suggests novelty at the genus level. This is the first evidence for the existence of widespread populations of obligate marine actinomycetes. Organic extracts from cultured members of this new group exhibit remarkable biological activity, suggesting that they represent a prolific resource for biotechnological applications.
journal_name
Appl Environ Microbioljournal_title
Applied and environmental microbiologyauthors
Mincer TJ,Jensen PR,Kauffman CA,Fenical Wdoi
10.1128/aem.68.10.5005-5011.2002keywords:
subject
Has Abstractpub_date
2002-10-01 00:00:00pages
5005-11issue
10eissn
0099-2240issn
1098-5336journal_volume
68pub_type
杂志文章abstract::[This corrects the article on p. 2610 in vol. 57.]. ...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.58.2.780-780.1992
更新日期:1992-02-01 00:00:00
abstract::Stromatolites, organosedimentary structures formed by microbial activity, are found throughout the geological record and are important markers of biological history. More conspicuous in the past, stromatolites occur today in a few shallow marine environments, including Hamelin Pool in Shark Bay, Western Australia. Ham...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.71.8.4822-4832.2005
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abstract::A gene, pfa1, encoding an autotransporter was cloned from a pathogenic Pseudomonas fluorescens strain, TSS, isolated from diseased fish. The expression of pfa1 is enhanced during infection and is regulated by growth phase and growth conditions. Mutation of pfa1 significantly attenuates the overall bacterial virulence ...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.00159-09
更新日期:2009-07-01 00:00:00
abstract::Biodegradability screening tests of soil commonly measure 14CO2 evolution from radiolabeled test compounds, and glucose has often served as a positive control. When constant amounts of radiolabel were added to soil in combination with increasing amounts of unlabeled substrates, glucose and some related hexoses behaved...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.62.7.2411-2415.1996
更新日期:1996-07-01 00:00:00
abstract::A method is described whereby the presence of Salmonella spp. can be detected within 8 to 24 h of sample collection. The method depends upon the interaction of Salmonella spp. with the Salmonella-specific Felix-O1 bacteriophage. This interaction results in an increase in concentration of the bacteriophage which is det...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.45.1.260-264.1983
更新日期:1983-01-01 00:00:00
abstract::Adsorption of Agrobacterium tumefaciens cells to potato tuber disks reached equilibrium after coincubation for about 30 min. More than 10% of the number of bacteria bound at equilibrium were adsorbed within 30 s. Adsorption isotherms obtained at three temperatures showed that the heat of adsorption was nearly zero. ...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.51.5.1130-1132.1986
更新日期:1986-05-01 00:00:00
abstract::Interactions of soybean with Bradyrhizobium japonicum 123 (serogroup 123) and 138 (serogroup c1) were used to examine the relationship between early infection rates, competition for nodulation, and patterns of nodule occupancy. Both strains formed more infections in autoclaved soil (sterile soil) than in untreated soi...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.54.8.1996-2002.1988
更新日期:1988-08-01 00:00:00
abstract::Salmonella enterica is an animal and zoonotic pathogen of worldwide importance. Salmonella serovars that differ in their host and tissue tropisms exist. Cattle are an important reservoir of human nontyphoidal salmonellosis, and contaminated bovine peripheral lymph nodes enter the food chain via ground beef. The relati...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.02262-17
更新日期:2018-01-31 00:00:00
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journal_title:Applied and environmental microbiology
pub_type: 杂志文章
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更新日期:2000-05-01 00:00:00
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journal_title:Applied and environmental microbiology
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journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/aem.69.10.6121-6127.2003
更新日期:2003-10-01 00:00:00
abstract::Aldehydes are a class of chemicals with many industrial uses. Several aldehydes are responsible for flavors and fragrances present in plants, but aldehydes are not known to accumulate in most natural microorganisms. In many cases, microbial production of aldehydes presents an attractive alternative to extraction from ...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章,评审
doi:10.1128/AEM.03319-14
更新日期:2015-03-01 00:00:00
abstract::Examination of Listeria monocytogenes prevalence among ready-to-eat foods in Japan revealed frequent (5.7 to 12.1%) contamination of minced tuna and fish roe products, and the isolates had the same virulence levels as clinical isolates in terms of invasion efficiency and infectivity in cell cultures and a murine infec...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.01456-09
更新日期:2010-05-01 00:00:00
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journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.32.5.723-725.1976
更新日期:1976-11-01 00:00:00
abstract::Pseudomonas aeruginosa JB2 was isolated from a polychlorinated biphenyl-contaminated soil by enrichment culture containing 2-chlorobenzoate as the sole carbon source. Strain JB2 was subsequently found also to grow on 3-chlorobenzoate, 2,3- and 2,5-dichlorobenzoates, 2,3,5-trichlorobenzoate, and a wide range of other m...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.56.12.3842-3850.1990
更新日期:1990-12-01 00:00:00
abstract::Water delivered by dental unit water systems (DUWS) in general dental practices can harbor high numbers of bacteria, including opportunistic pathogens. Biofilms on tubing within DUWS provide a reservoir for microorganisms and should be controlled. This study compared disinfection products for their ability to meet the...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.72.2.1380-1387.2006
更新日期:2006-02-01 00:00:00
abstract::The temporal and spatial distribution of Salmonella contamination in the coastal waters of Galicia (northwestern Spain) relative to contamination events with different environmental factors (temperature, wind, hours of sunlight, rainfall, and river flow) were investigated over a 4-year period. Salmonellae were isolate...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/aem.70.4.2089-2097.2004
更新日期:2004-04-01 00:00:00
abstract::Oral bacterial microcosms, established using saliva inocula from three individuals, were maintained under a feast-famine regime within constant-depth film fermenters. Steady-state communities were exposed four times daily, postfeeding, to a chlorhexidine (CHX) gluconate-containing mouthwash (CHXM) diluted to 0.06% (wt...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/aem.69.8.4770-4776.2003
更新日期:2003-08-01 00:00:00
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journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.00207-11
更新日期:2011-08-01 00:00:00
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journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.54.2.375-380.1988
更新日期:1988-02-01 00:00:00
abstract::Forty-nine isolates of Butyrivibrio fibrisolvens and a single isolate of Butyrivibrio crossotus were screened for the production of inhibitors by a deferred plating procedure. Twenty-five isolates produced factors which, to various degrees, inhibited the growth of the other Butyrivibrio isolates. None of the inhibitor...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.63.2.394-402.1997
更新日期:1997-02-01 00:00:00
abstract::The moderately halophilic bacterium Halobacillus halophilus carries a homologue of LuxS, a protein involved in the activated methyl cycle and the production of autoinducer-2, which mediates quorum sensing between certain species. luxS of H. halophilus is part of an operon that encodes an S-adenosylmethionine-dependent...
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pub_type: 杂志文章
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更新日期:2007-01-01 00:00:00
abstract::Diet is a major factor in maintaining a healthy human gastrointestinal tract, and this has triggered the development of functional foods containing a probiotic and/or prebiotic component intended to improve the host's health via modulation of the intestinal microbiota. In this study, a long-term placebo-controlled cro...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.00233-06
更新日期:2006-09-01 00:00:00
abstract::Inactivation of Bacillus cereus spores during cooling (10 degrees C/h) from 90 degrees C occurred in two phases. One phase occurred during cooling from 90 to 80 degrees C; the second occurred during cooling from 46 to 38 degrees C. In contrast, no inactivation occurred when spores were cooled from a maximum temperatur...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.47.4.768-774.1984
更新日期:1984-04-01 00:00:00
abstract::This paper explores the relationship between the genetic diversity of rhizobia and the morphological diversity of their plant hosts. Rhizobium galegae strains were isolated from nodules of wild Galega orientalis and Galega officinalis in the Caucasus, the center of origin for G. orientalis. All 101 isolates were chara...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/aem.69.2.1067-1074.2003
更新日期:2003-02-01 00:00:00
abstract::Populations of feral pigs (Sus scrofa) may serve as an environmental reservoir of Cryptosporidium parvum oocysts and Giardia sp. cysts for source water. We conducted a cross-sectional study to determine the prevalence of and associated demographic and environmental risk factors for the shedding of C. parvum oocysts an...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.63.10.3946-3949.1997
更新日期:1997-10-01 00:00:00
abstract::Enterohemorrhagic Escherichia coli (EHEC) causes serious foodborne disease worldwide. It produces the very potent Shiga toxin 2 (Stx2). The Stx2-encoding genes are located on a prophage, and production of the toxin is linked to the synthesis of Stx phages. There is, currently, no good treatment for EHEC infections, as...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
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更新日期:2020-11-24 00:00:00
abstract::The nucleotide sequence of a new plasmid pCNB1 from Comamonas sp. strain CNB-1 that degrades 4-chloronitrobenzene (4CNB) was determined. pCNB1 belongs to the IncP-1beta group and is 91,181 bp in length. A total of 95 open reading frames appear to be involved in (i) the replication, maintenance, and transfer of pCNB1; ...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.00616-07
更新日期:2007-07-01 00:00:00
abstract::Investigations concerning the role of distribution system biofilms on water quality were conducted at a drinking water utility in New Jersey. The utility experienced long-term bacteriological problems in the distribution system, while treatment plant effluents were uniformly negative for coliform bacteria. Results of ...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.53.12.2714-2724.1987
更新日期:1987-12-01 00:00:00
abstract::Volumn 62, no. 11, p. 4174, Abstract, lines 12 and 13: "para dechlorination was restricted from 18 to 34(deg)C" should read "para dechlorination was restricted to temperatures from 18 to 34(deg)C." [This corrects the article on p. 4174 in vol. 62.]. ...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:
更新日期:1997-02-01 00:00:00