Abstract:
:Microcosms may potentially be used as tools for evaluating the fate and effects of genetically engineered microorganisms released into the environment. Extrapolation of data to the field, however, requires that the correspondence between microcosm and field is known. Microbial trophic interactions within the microbial loop were compared quantitatively and qualitatively between field and microcosms containing estuarine water with and without intact sediment cores. The comparison showed that whereas proportions between trophic levels in microcosms were qualitatively similar to those in the field, rates of microbial processes were from 25 to 40% lower in microcosms. Nitrogen cycling was disrupted in microcosms incubated in the dark to eliminate primary production. Examination of the microbial parameters further suggests that sediment in microcosms may be an important factor regulating the bacterial trophic level. These results demonstrate that analysis of microbial trophic interactions is a sensitive method for the field comparison of aquatic microcosms and a potentially useful tool in the risk assessment of genetically engineered microorganisms.
journal_name
Microb Ecoljournal_title
Microbial ecologyauthors
Kroer N,Coffin RBdoi
10.1007/BF00172636subject
Has Abstractpub_date
1992-06-01 00:00:00pages
143-57issue
2eissn
0095-3628issn
1432-184Xjournal_volume
23pub_type
杂志文章abstract::Endophytes are microbial symbionts living inside plants and have been extensively researched in recent decades for their functions associated with plant responses to environmental stress. We conducted a meta-analysis of endophyte effects on host plants' growth and fitness in response to three abiotic stress factors: d...
journal_title:Microbial ecology
pub_type: 杂志文章,meta分析
doi:10.1007/s00248-017-1054-3
更新日期:2018-02-01 00:00:00
abstract::The spatial distribution of the bacterial biomass and production and of potential heterotrophic activity (PHA) were measured every 4 h between 23 July (10:00 h) and 25 July (10:00 h) 1997 in a recently flooded oligo-mesotrophic reservoir (the Sep Reservoir, Puy-de-Dôme, France), in relation to temperature, the phytopl...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s002480000056
更新日期:2000-12-01 00:00:00
abstract::Growth kinetics of 2Nitrobacter strains (N.w. and L) coexisting in the same soil are studied in batch and continuous culture. Monod's parameters are estimated numerically from experimental data in the case of the batch experiment, and from steady-state equations in the case of the chemostat. In both cases, the 2 strai...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/BF02011417
更新日期:1984-06-01 00:00:00
abstract::A strain-specific immunofluorescence assay for enumeration of a marine denitrifying bacterium was developed and applied in the marine environment. The polyclonal antiserum for Pseudomonas stutzeri (ATCC 14405) did not react with other pseudomonads, other heterotrophs, or autotrophic nitrifying strains. The abundance o...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/BF00171890
更新日期:1993-05-01 00:00:00
abstract::The dynamics of carbon (C), nitrogen (N), and phosphorus (P), elemental ratios, and dark uptake/release of N and P in bacterial and phytoplankton size fractions were studied during summer 1992 in three lakes of contrasting food web structure and trophic status (L240, L110, L227). We wished to determine if phytoplankto...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/BF00167161
更新日期:1995-03-01 00:00:00
abstract::Many insects harbor specific bacteria in their digestive tract, and these gut microbiota often play important roles in digestion and nutrient provisioning. While it is common for a given insect species to harbor a representative gut microbial community as a population, how this community is acquired and maintained fro...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-009-9501-4
更新日期:2009-07-01 00:00:00
abstract::Cultivation and molecular-based approaches were used to study microbial diversity in two Chilean marine sediments contaminated with high (835 ppm) and very high concentrations of copper (1,533 ppm). The diversity of cultivable bacteria resistant to copper was studied at oxic and anoxic conditions, focusing on sulfate-...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-012-0120-0
更新日期:2013-02-01 00:00:00
abstract::Photosynthetic carbon fixation by phytoplankton is a key component of the global carbon cycle. Our understanding of the types of picoplankton and ultraphytoplankton involved in this process is evolving. However, mechanisms of regulation of photosynthetic carbon fixation in the oceans are poorly understood. All phytopl...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/BF00183060
更新日期:1996-11-01 00:00:00
abstract::Although they are very unlikely to play large direct roles in water-column microbial loops, eukaryotic mycelial decomposers (the mycelial true fungi, eumycotes, and zoosporic "fungi," oomycotes) have the potential to be important secondary producers in decaying plant material in shallow aquatic systems. Their secondar...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/BF00166803
更新日期:1994-09-01 00:00:00
abstract::With the recent advancement of next-generation sequencing methods, there has been an increase in studies on identification of vineyard microbiota, winery-associated microbiota, and microbiota in wine fermentation. However, there have been few studies investigating the fungal microbiota of table grapes which present di...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-021-01698-8
更新日期:2021-01-29 00:00:00
abstract::We investigated the dynamics and diversity of heterotrophic bacteria, autotrophic and heterotrophic flagellates, and ciliates from March to July 2002 in the surface waters (0-50 m) of Lake Bourget. The heterotrophic bacteria consisted mainly of "small" cocci, but filaments (>2 microm), commonly considered to be grazin...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-004-0230-4
更新日期:2006-07-01 00:00:00
abstract::Fungal immigration dynamics and community development were followed over time on sets of surface-disinfested apple leaves in the field. Immigration was defined as the arrival of viable propagules on the leaf surface. In three separate experiments (May, June, July), total numbers of fungal immigrants, numbers of filame...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/BF02011695
更新日期:1989-07-01 00:00:00
abstract::Rhizospheric soil samples were taken from Puna native grasses along an altitudinal gradient. Biodiversity of arbuscular mycorrhizal fungi (AMF) and associated bacteria was analyzed considering altitude and grasses photosynthetic pathways (metabolic type C3, C4). Cultivation-dependent approaches were applied to obtain ...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-007-9313-3
更新日期:2008-05-01 00:00:00
abstract::Facultative methylotrophic bacteria of the genus Methylobacterium are consistently found in association with plants, particularly in the phyllosphere. To gain a better understanding of the mechanisms underlying the dispersal and occurrence of Methylobacterium on plants, diverse strains were isolated, identified, and s...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-010-9725-3
更新日期:2010-08-01 00:00:00
abstract::The detrital food web is a major nexus of energy flow in nearly all aquatic ecosystems. Energy enters this nexus by microbial assimilation of detrital carbon. To link microbiological variables with ecosystem process, it is necessary to understand the regulatory hierarchy that controls the distribution of microbial bio...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/BF00172569
更新日期:1995-09-01 00:00:00
abstract::Members of the ant tribe Camponotini have coevolved with Blochmannia, an obligate intracellular bacterial mutualist. This endosymbiont lives within host bacteriocyte cells that line the ant midgut, undergoes maternal transmission from host queens to offspring, and contributes to host nutrition via nitrogen recycling a...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-013-0264-6
更新日期:2013-10-01 00:00:00
abstract::Composition and distribution of planktonic protists were examined relative to microbial food web dynamics (growth, grazing, and nitrogen cycling rates) at the Old Woman Creek (OWC) National Estuarine Research Reserve during an episodic storm event in July 2003. More than 150 protistan taxa were identified based on mor...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-004-0250-0
更新日期:2004-11-01 00:00:00
abstract::Maize root colonization and phosphate solubilizing activity of the fungus Penicillium rugulosum were assessed in a greenhouse trial using soil-plant microcosms. The bacterial gene hph conferring resistance to hygromicin B was introduced by electroporation in the wild-type strain IR-94MF1 of P. rugulosum and one transf...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-002-1001-8
更新日期:2002-07-01 00:00:00
abstract::Carnivorous pitcher plants Sarracenia purpurea host diverse eukaryotic and bacterial communities which aid in insect prey digestion, but little is known about the functional processes mediated by the microbial communities. This study aimed to connect pitcher community diversity with functional nutrient transformation ...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-018-1187-z
更新日期:2018-11-01 00:00:00
abstract::Abnormality and disease in sponges have been widely reported, yet how sponge-associated microbes respond correspondingly remains inconclusive. Here, individuals of the sponge Carteriospongia foliascens under abnormal status were collected from the Rabigh Bay along the Red Sea coast. Microbial communities in both healt...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-014-0419-0
更新日期:2014-10-01 00:00:00
abstract::More than 50% of all anthropogenic N2O emissions come from the soil. Drained Histosols that are used for agricultural purposes are particularly potent sources of denitrification due to higher stocks of organic matter and fertiliser application. However, conditions that favour denitrification can vary considerably acro...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-017-0991-1
更新日期:2017-11-01 00:00:00
abstract::Plant community characteristics impact rhizosphere Streptomyces nutrient competition and antagonistic capacities. However, the effects of Streptomyces on, and their responses to, coexisting microorganisms as a function of plant host or plant species richness have received little attention. In this work, we characteriz...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-016-0907-5
更新日期:2017-07-01 00:00:00
abstract::The aim of the study was to assess the effect of the mycorrhizosphere of A. tortillis spp. raddiana mycorrhized with Glomus intraradices on the root nodulation by Sinorhizobium terangae (ORS 1009) and/or Mesorhizobium plurifarium (ORS 1096) in two different culture substrates (sandy soil and sand). The endomycorrhizal...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-002-1022-3
更新日期:2003-02-01 00:00:00
abstract::The symbiotic microbes that grow in and on many organisms can play important roles in protecting their hosts from pathogen infection. While species diversity has been shown to influence community function in many other natural systems, the question of how species diversity of host-associated symbiotic microbes contrib...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-016-0916-4
更新日期:2017-07-01 00:00:00
abstract::The marine chrysophyteMonochrysis lutheri was grown in phosphorus-limited continuous cultures at temperatures of 15°, 18.8° and 23°C. The effect of temperature on the maximum growth rate was well-defined by the Arrhenius equation, but the Q10 for this alga (1.7) was somewhat lower than has been determined previously f...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/BF02013523
更新日期:1979-09-01 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
pub_type: 杂志文章
doi:10.1007/s00248-019-01471-y
更新日期:2020-07-01 00:00:00
abstract::Potential rates of nitrification and denitrification were measured in an oligotrophic sediment system. Nitrification potential was estimated using the CO oxidation technique, and potential denitrification was measured by the acetylene blockage technique. The sediments demonstrated both nitrifying and denitrifying acti...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/BF02011574
更新日期:1987-07-01 00:00:00
abstract::Generally, only a small fraction of free-living pelagic bacteria are metabolically active, while particle-associated bacteria usually exhibit a larger proportion of active bacteria. Most previous studies on the active fraction of bacteria focus on planktonic communities, and there are only a few studies on sediment an...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-002-2005-0
更新日期:2002-03-01 00:00:00
abstract::In 1991 and 1992, the Latin American epidemic strain of Vibrio cholerae O1 was isolated from ballast water, bilge water, and sewage taken from cargo ships docked in Mobile Bay, Alabama. The findings raised questions regarding the organism's ability to survive long-term aboard ships and to withstand the exchange of bal...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/BF00167862
更新日期:1996-03-01 00:00:00
abstract::Understanding the role of microbiota as reproductive barriers or sources of adaptive novelty in the fundamental biological phenomenon of speciation is an exciting new challenge necessitating exploration of microbiota variation in wild interbreeding species. We focused on two interbreeding cyprinid species, Chondrostom...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-017-1077-9
更新日期:2018-04-01 00:00:00