Abstract:
:Dilute soda lakes are among the world's most productive environments and are usually dominated by dense blooms of cyanobacteria. Up to now, there has been little information available on heterotrophic bacterial abundance, production, and their controlling factors in these ecosystems. In the present study the main environmental factors responsible for the control of the heterotrophic bacterial community in five shallow soda pools in Eastern Austria were investigated during an annual cycle. Extremely high cyanobacterial numbers and heterotrophic bacterial numbers up to 307 x 10(9) L(-1) and 268 x 10(9) L(-1) were found, respectively. Bacterial secondary production rates up to 738 micro g C L(-1) h(-1) and specific growth rates up to 1.65 h(-1) were recorded in summer and represent the highest reported values for natural aquatic ecosystems. The combination of dense phytoplankton blooms, high temperature, high turbidity, and nutrient concentration due to evaporation is supposed to enable the development of such extremely productive microbial populations. By principal component analysis containing the data set of all five investigated pools, two factors were extracted which explained 62.5% of the total variation of the systems. The first factor could be interpreted as a turbidity factor; the second was assigned to as concentration factor. From this it was deduced that bacterial and cyanobacterial abundance were mainly controlled by wind-induced sediment resuspension and turbidity stabilized by the high pH and salinity and less by evaporative concentration of salinity and dissolved organic carbon. Bacterial production was clustered with temperature in factor 3, showing that bacterial growth was mainly controlled by temperature. The concept of describing the turbid water columns of the shallow soda pools as "fluid sediment" is discussed.
journal_name
Microb Ecoljournal_title
Microbial ecologyauthors
Eiler A,Farnleitner AH,Zechmeister TC,Herzig A,Hurban C,Wesner W,Krachler R,Velimirov B,Kirschner AKdoi
10.1007/s00248-002-2041-9keywords:
subject
Has Abstractpub_date
2003-07-01 00:00:00pages
43-54issue
1eissn
0095-3628issn
1432-184Xjournal_volume
46pub_type
杂志文章abstract::The anaerobic degradation ofp-cresol was studied with one sediment source under three reducing conditions-denitrifying, sulfidogenic, and methanogenic. Loss ofp-cresol (1 mM) in all the anaerobic systems took initially 3 to 4 weeks. In acclimated culturesp-cresol was degraded in less than a week.p-Cresol was completel...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/BF02543873
更新日期:1990-12-01 00:00:00
abstract::Recent publications indicate that inter-specific interactions between soil bacteria may strongly affect the behavior of the strains involved, e.g., by increased production of antibiotics or extracellular enzymes. This may point at an enhanced competitive ability due to inter-specific triggering of gene expression. How...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-009-9502-3
更新日期:2009-07-01 00:00:00
abstract::Global warming is causing ice retreat in glaciers worldwide, most visibly over the last few decades in some areas of the planet. One of the most affected areas is the region of Tierra del Fuego (southern South America). Vascular plant recolonisation of recently deglaciated areas in this region is initiated by Gunnera ...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-013-0223-2
更新日期:2013-08-01 00:00:00
abstract::Sediment samples were collected monthly from Acton Lake, a eutrophic reservoir located in an agricultural region of southwestern Ohio, from three stations (River, Middle, and Dam) during the period May 1995 through January 1997. Sedimentary microbial biomass and community structures from these stations were studied us...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s002480000102
更新日期:2001-10-01 00:00:00
abstract::The McMurdo Dry Valleys of Antarctica form the coldest and driest ecosystem on Earth. Within this region there are a number of perennially ice-covered (3-6 m thick) lakes that support active microbial assemblages and have a paucity of metazoans. These lakes receive limited allochthonous input of carbon and nutrients, ...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-003-1007-x
更新日期:2004-05-01 00:00:00
abstract::We studied the persistence of Bacillus thuringiensis serovar israelensis (Bti) in a typical breeding site of the mosquito Ochlerotatus caspius in a particularly sensitive salt marsh ecosystem following two Bti-based larvicidal applications (Vectobac 12AS, 1.95 L/ha). The treated area was composed of four larval biotop...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-005-0247-3
更新日期:2005-11-01 00:00:00
abstract::Saltmarshes are typically dominated by perennial grasses with large underground rhizome systems that can change local sediment conditions and be important in shaping the sediment microbial community. Factors such as salinity that control plant zonation in saltmarshes are also likely to influence the microbial communit...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-015-0651-2
更新日期:2016-02-01 00:00:00
abstract::The role of fungi in metal cycling in acidic environments has been little explored to date. In this study, two acid-tolerant and metal-resistant Penicillium isolates, strains ShG4B and ShG4C, were isolated from a mine site in the Transbaikal area of Siberia (Russia). Waters at the mine site were characterized by extre...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-018-1186-0
更新日期:2018-11-01 00:00:00
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 w...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/BF02019021
更新日期:1983-12-01 00:00:00
abstract::A variety of approaches including enumeration of visibly infected microbes, removal of viral particles, decay of viral infectivity, and measurements of viral production rates have been used to infer the impact of viruses on microbial mortality. The results are surprisingly consistent and suggest that, on average, abou...
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::Aeromonas species were recovered from over 27% of 183 chlorinated drinking water samples collected during an 18-month period. Sixteen of 20 isolates tested elicited a cytotoxic response by Y-1 mouse adrenal cells. None of the strains was either enterotoxigenic by the rabbit ligated ileal loop assay, exhibited piliatio...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/BF02010672
更新日期:1982-12-01 00:00:00
abstract::Abstract In this study, two different agricultural soils were investigated: one organic soil and one sandy soil, from Stend (south of Bergen), Norway. The sandy soil was a field frequently tilled and subjected to crop rotations. The organic soil was permanent grazing land, infrequently tilled. Our objective was to com...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s002489900117
更新日期:1998-11-01 00:00:00
abstract::The persistence and interaction between newly isolated strains ofPseudomonas aeruginosa and resident bacteriophages indigenous to a freshwater environment was monitored over 45 days in lake water microcosms. The interaction between susceptible and resistant bacteria with pure phage (UT1) particles or a mixed phage pop...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/BF02012098
更新日期:1990-03-01 00:00:00
abstract::Francisella tularensis is associated with water and waterways and infects many species of animals, insects, and protists. The mechanism Francisella utilizes to persist in the environment and in tick vectors is currently unknown. We have demonstrated for the first time that Francisella novicida, a model organism of F. ...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-009-9586-9
更新日期:2010-04-01 00:00:00
abstract::Soil contamination with heavy metals is a widespread problem, especially prominent on grounds lying in the vicinity of mines, smelters, and other industrial facilities. Many such areas are located in Southern Poland; they are polluted mainly with Pb, Zn, Cd, or Cu, and locally also with Cr. As for now, little is known...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-013-0344-7
更新日期:2014-04-01 00:00:00
abstract::Ammonia oxidation has been intensively studied for its sensitivity to environmental shifts and stresses. However, acute stress effects on the occurrence and composition of ammonia oxidizing bacteria (AOB) and archaea (AOA) based on expression of related molecular markers in complex soil environments have been to an ex...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-012-0081-3
更新日期:2012-11-01 00:00:00
abstract::The lower respiratory tract has been previously considered sterile in a healthy state, but advances in culture-independent techniques for microbial identification and characterization have revealed that the lung harbors a diverse microbiome. Although research on the lung microbiome is increasing and important question...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-017-1068-x
更新日期:2018-02-01 00:00:00
abstract::In dryland regions, biological soil crusts (BSCs) have numerous important ecosystem functions. Crust species and functions are, however, highly spatially heterogeneous and remain poorly understood at a range of scales. In this study, chlorophyll fluorescence imaging was used to quantify millimeter-scale patterns in th...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-019-01356-0
更新日期:2019-11-01 00:00:00
abstract::Fungi have been only rarely isolated from glacial ice in extremely cold polar regions and were in these cases considered as random, long-term preserved Aeolian deposits. Fungal presence has so far not been investigated in polar subglacial ice, a recently discovered extreme habitat reported to be inhabited exclusively ...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-006-9086-0
更新日期:2006-08-01 00:00:00
abstract::Alcohol production from corn is gaining importance in Ontario, Canada, and elsewhere. A major cost of corn production is the cost of chemical fertilizers and these continue to increase in price. The competitiveness of alcohol with fossil fuels depends on access to low-cost corn that allows growers to earn a sustainabl...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-006-9039-7
更新日期:2006-04-01 00:00:00
abstract::This study investigated the relationships of time-dependent hydrological variability and selected microbial food web components. Samples were collected monthly from the Kopački Rit floodplain in Croatia, over a period of 19 months, for analysis of bacterioplankton abundance, cell size and biomass; abundance of heterot...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-012-0016-z
更新日期:2012-07-01 00:00:00
abstract::The hypolithic microbial community associated with quartz pavement at a high-altitude tundra location in central Tibet is described. A small-scale ecological survey indicated that 36% of quartz rocks were colonized. Community profiling using terminal restriction fragment length polymorphism revealed no significant dif...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-010-9653-2
更新日期:2010-11-01 00:00:00
abstract::Numerous studies demonstrated that endophytic microbes can promote plant growth and increase plant stress resistance. We aimed at isolating poplar endophytes able to increase their hosts' fitness both in nutrient-limited and polluted environments. To achieve this goal, endophytic bacteria and fungi were isolated from ...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-017-1103-y
更新日期:2018-05-01 00:00:00
abstract::Soil filamentous fungi play a prominent role in regulating ecosystem functioning in terrestrial ecosystems. This necessitates understanding their responses to climate change drivers in order to predict how nutrient cycling and ecosystem services will be influenced in the future. Here, we provide a quantitative synthes...
journal_title:Microbial ecology
pub_type: 杂志文章,meta分析
doi:10.1007/s00248-016-0795-8
更新日期:2016-08-01 00:00:00
abstract::The occurrence and distribution of Azorhizobium and Rhizobium strains that induce stem nodulation of Sesbania rostrata were determined in four vegetation zones in Senegal. Based on tests with 16 Rhizobium and 10 Azorhizobium strains nodulating S. rostrata, a method was devised to distinguish among the strains. In all ...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/BF00217424
更新日期:1995-01-01 00:00:00
abstract::The genetic diversity of a collection of 336 spore-forming isolates recovered from five salt-saturated brines and soils (Chott and Sebkhas) mainly located in the hyper-arid regions of the southern Tunisian Sahara has been assessed. Requirements and abilities for growth at a wide range of salinities\ showed that 44.3 %...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-013-0274-4
更新日期:2013-11-01 00:00:00
abstract::Interactions between bacteria and protozoa in soil were studied over 2-week periods in the field and in a pot experiment. Under natural conditions the total biological activity was temporarily synchronized by a large rainfall, and in the laboratory by the addition of water to dried-out soil, with or without plants. In...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/BF02341429
更新日期:1981-12-01 00:00:00
abstract::Assimilation of 35S-precursors into microbial proteins was used to investigate toxicity and adaptational responses that occur in nutrient enriched and natural freshwater samples experimentally contaminated with benzene, toluene, trichloroethylene (TCE), or xylene. Experiments were conducted to analyze (1) the potentia...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/BF00171573
更新日期:1996-05-01 00:00:00
abstract::Electron transport system (ETS) activity was measured in amended and nonamended soil by measuring the reduction of 2-(p-iodophenyl)-3-(p-nitrophenyl)-5-phenyl tetrazolium chloride (INT) to iodonitrotetrazolium formazan (INT-formazan), which can be easily extracted with methanol without interference from other compound...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/BF02010449
更新日期:1982-10-01 00:00:00
abstract::The relationship between functional redundancy and microbial community structure-diversity was examined using laboratory incubations to ensure constant environmental conditions. Serial dilutions of a sewage microbial community were prepared, used to inoculate sterile sewage, and maintained in batch culture. Probabilit...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-006-9033-0
更新日期:2006-08-01 00:00:00