Abstract：
:By using substrate molecules of varying degrees of surface activity, we were able to measure some features of bacterial activity in the surface microlayers (SM) and in the subsurface (bulk) water. The fraction of active cells was determined by a combined microautoradiography-epifluorescence (ME) method. Measurements were made of(14)CO2 evolution to determine the rate of respiration. Results from in situ measurements showed no significant difference between fraction of active cells in the SM and in the bulk. This may be due to an exchange of bacteria between SM and bulk. This exchange was assessed by spreading a film of(3)H-palmitic acid on the surface and, after incubation, measuring the amount of labeled cells at the surface and in the bulk. Test bacteria showing a high accumulation at the surface also showed a low exchange between the 2 strata. When low concentrations of added(14)C-protein were used, the respiration measurements showed a lower value for bulk than for interface localized protein. At higher concentrations, the evolved(14)CO2 was the same whether the protein was mixed in the bulk or spread at the surface. When 2.4-12 ng·cm(-2) of(14)C-palmitic acid was spread on the surface, there was a linear relation between turnover time and amount of added substrate. At higher substrate concentrations there was a deviation from the straight line. Results are discussed in terms of the unique habitat found at an interface.
journal_name
Microb Ecoljournal_title
Microbial ecologyauthors
Hermansson M,Dahlbäck Bdoi
10.1007/BF02019021subject
Has Abstractpub_date
1983-12-01 00:00:00pages
317-28issue
4eissn
0095-3628issn
1432-184Xjournal_volume
9pub_type
杂志文章abstract：:The abundance ofAeromonas hydrophila was measured monthly at 29 sites in Albemarle Sound, North Carolina and its tributaries from April 1977 through July 1979. Simultaneous measurements included heterotrophic plate count bacteria, fecal coliform bacteria, and 18 physical and chemical parameters. Using only 6 water qua...
journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/BF02015127
更新日期：1983-07-01 00:00:00
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journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/BF02020340
更新日期：1980-12-01 00:00:00
abstract：:The study presents evidence in support of the bacterial theory associated with the toxicity of Pyrodinium bahamense var. compressum. Bacterial endosymbionts from Philippine P. bahamense var. compressum strain Pbc MZRVA 042595 were isolated and identified via 16S rDNA sequence analysis. Taxonomic diversity of the ident...
journal_title：Microbial ecology
pub_type： 杂志文章
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更新日期：2006-11-01 00:00:00
abstract：:Biological soil crust is composed of lichens, cyanobacteria, green algae, mosses, and fungi. Although crusts are a dominant source of nitrogen (N) in arid ecosystems, this study is among the first to demonstrate their contribution to N availability in xeric temperate habitats. The study site is located in Lucas County...
journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/s00248-005-0121-3
更新日期：2006-02-01 00:00:00
abstract：:The oriental fruit fly, Bactrocera dorsalis (Hendel), is an important invasive agricultural insect pest with a wide host range, and has spread around the world over the last century. This evolutionary trait may have arisen primarily from interactions between B. dorsalis and other invertebrates that share the same ecol...
journal_title：Microbial ecology
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更新日期：2020-08-01 00:00:00
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更新日期：2019-05-01 00:00:00
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doi：10.1007/s00248-018-1244-7
更新日期：2019-04-01 00:00:00
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journal_title：Microbial ecology
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更新日期：2009-07-01 00:00:00
abstract：:The muramic acid (MurA) assay is a powerful tool for the detection and quantification of bacteria with no need to enrich samples by culturing. However, the analysis of MurA in mixed biological and environmental matrices is potentially more complex than analysis in isolated bacterial cells. In this study, we employed o...
journal_title：Microbial ecology
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更新日期：2009-04-01 00:00:00
abstract：:The relative amounts of hyphal inoculum in forest soils may determine the capacity for fungi to compete with and replace early colonizers of wood in ground contact. Our aim in this study was to test the flexibility of priority effects (colonization timing) by varying the timing of inoculum introduction (i.e., precolon...
journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/s00248-015-0588-5
更新日期：2015-05-01 00:00:00
abstract：:To investigate growth of heterotrophic biofilm bacteria, a model biofilm reactor was developed to simulate a drinking water distribution system. Controlled addition of three different carbon sources (amino acids, carbohydrates, and humics) at three different concentrations (500, 1,000, and 2,000 ppb carbon) in the pre...
journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/s002489901003
更新日期：1999-11-01 00:00:00
abstract：:Faecal contamination poses health risks for the recreational users of urban estuaries. However, our understanding of the potential pathogenicity of faecal microbes in these environments is limited. To this end, a study was conducted to understand the spatial and seasonal distribution of Salmonella in water and sedimen...
journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/s00248-019-01419-2
更新日期：2020-02-01 00:00:00
abstract：:Streptomycetes are important members of soil microbial communities and are particularly active in the degradation of recalcitrant macromolecules and have been implicated in biological control of plant disease. Using a streptomycetes-specific polymerase chain reaction (PCR)-denaturing gradient gel electrophoresis (PCR-...
journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/s00248-004-0111-x
更新日期：2005-07-01 00:00:00
abstract：:The colonization and succession of diazotrophs are essential for the development of organic soil layers in desert. We examined the succession of diazotrophs in the well-established revegetated areas representing a chronosequence of 0 year (control), 22 years (restored artificially since 1981), 57 years (restored artif...
journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/s00248-015-0657-9
更新日期：2016-01-01 00:00:00
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journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/BF00166813
更新日期：1994-09-01 00:00:00
abstract：:We investigated if the plant growth promoting fungus Trichoderma harzianum Rifai 1295-22 (also known as "T22") could be used to enhance the establishment and growth of crack willow (Salix fragilis) in a soil containing no organic or metal pollutants and in a metal-contaminated soil by comparing this fungus with nonino...
journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/s00248-006-9203-0
更新日期：2007-08-01 00:00:00
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journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/s00248-011-9923-7
更新日期：2012-02-01 00:00:00
abstract：:Quorum sensing (QS) signals have been considered to play important roles in biofilm development and in the attractiveness of biofilms to higher organisms in marine ecosystem. In this study, bacterial QS signalsacylated homoserine lactone derivatives (AHLs) were detected in 2-, 4-, and 6-day-old subtidal biofilms by us...
journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/s00248-007-9210-9
更新日期：2007-08-01 00:00:00
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journal_title：Microbial ecology
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更新日期：2010-04-01 00:00:00
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journal_title：Microbial ecology
pub_type： 杂志文章
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更新日期：2010-10-01 00:00:00
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journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/BF02010484
更新日期：1985-06-01 00:00:00
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journal_title：Microbial ecology
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更新日期：1987-11-01 00:00:00
abstract：:Selective nucleic acid intercalating dyes--ethidium monoazide (EMA) and propidium monoazide (PMA)--represent one of the most successful recent approaches to detect viable cells (as defined by an intact cell membrane) by PCR and have been effectively evaluated in different microorganisms. However, some practical limita...
journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/s00248-010-9719-1
更新日期：2011-01-01 00:00:00
abstract：:Sixty-two bacteriophages were isolated on eight indigenous bacteria from a Pacific Ocean station spanning 887-m vertical depth, on two occasions between 1999 and 2000. On the basis of 16S rRNA sequences, six hosts were tentatively identified to be in the genus Vibrio and the other two were closely related to Altermona...
journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/s00248-002-1059-3
更新日期：2003-05-01 00:00:00
abstract：:Diverse microbial communities living in subsurface coal seams are responsible for important geochemical processes including the movement of carbon between the geosphere, biosphere and atmosphere. Microbial conversion of the organic matter in coal to methane involves a complex assemblage of bacteria and archaea working...
journal_title：Microbial ecology
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doi：10.1007/s00248-019-01471-y
更新日期：2020-07-01 00:00:00
abstract：:While oyster mushroom (Pleurotus spp.) is one of the most popular cultivated edible mushrooms, there is scanty information about the microbial community taking part in mushroom substrate production. In this study, an improved sequence-aided terminal restriction fragment length polymorphism (T-RFLP) was used to identif...
journal_title：Microbial ecology
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doi：10.1007/s00248-012-0063-5
更新日期：2012-10-01 00:00:00
abstract：:Proteus spp. bacteria were first described in 1885 by Gustav Hauser, who had revealed their feature of intensive swarming growth. Currently, the genus is divided into Proteus mirabilis, Proteus vulgaris, Proteus penneri, Proteus hauseri, and three unnamed genomospecies 4, 5, and 6 and consists of 80 O-antigenic serogr...
journal_title：Microbial ecology
pub_type： 杂志文章,评审
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更新日期：2016-11-01 00:00:00
abstract：:The potential role of host plant species in the selection of symbiotic, nitrogen-fixing Frankia strains belonging to the Elaeagnus host infection group was assessed in bioassays with two Morella, three Elaeagnus, and one Shepherdia species as capture plants, inoculated with soil slurries made with soil collected from ...
journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/s00248-009-9513-0
更新日期：2009-08-01 00:00:00
abstract：:The diversity of microbial communities inhabiting two terrestrial volcanic glasses of contrasting mineralogy and age was characterised. Basaltic glass from a <0.8 Ma hyaloclastite deposit (Valafell) harboured a more diverse Bacteria community than the younger rhyolitic glass from ∼150-300 AD (Dόmadalshraun lava flow)....
journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/s00248-010-9684-8
更新日期：2010-11-01 00:00:00
abstract：:Montmorillonitic clay influences the biological control ofEscherichia coli in aquatic systems, the magnitude of the effects being dependent on the state of the clay and the type of host-antagonist interaction. The interaction ofBdellovibrio andE. coli was partially inhibited by the presence of montmorillonite. Because...
journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/BF02013272
更新日期：1977-12-01 00:00:00
