Nitrogen economy of endolithic microbial communities in hot and cold deserts.

abstract：:Bacterioplankton community composition was studied in 12 lakes in three different geographic regions in Scandinavia using denaturing gradient gel electrophoresis (DGGE) and sequencing of 16S rDNA. Area-specific abundant taxa were found in the lakes in two of the regions. In the region of Uppland the lakes had an alpha...

journal_title：Microbial ecology

authors： Lindström ES,Leskinen E

更新日期：2002-07-01 00:00:00

abstract：:Unicellular microalgae generally grow in the presence of bacteria, particularly when they are farmed massively. This study analyzes the bacteria associated with mass culture of Botryococcus braunii: both the planktonic bacteria in the water column and those forming biofilms adhered to the surface of the microalgal cel...

journal_title：Microbial ecology

authors： Rivas MO,Vargas P,Riquelme CE

更新日期：2010-10-01 00:00:00

abstract：:One of the major challenges in microbial ecology for the future is to establish links between structural and functional biodiversity. This is particularly difficult when one is interested in a phylogenetically diversified function such as denitrification. The data banks are very rich in functional gene sequences (nirS...

journal_title：Microbial ecology

authors： Goregues CM,Michotey VD,Bonin PC

更新日期：2005-02-01 00:00:00

abstract：:Mathematical studies for ecosystems involving 2 predators competing for a growing prey population have shown that the 2 competitors can coexist in a state of sustained oscillations for a range of values of the system parameters. For the case of 1 suspension-feeding protozoan population, recent experimental observation...

journal_title：Microbial ecology

authors： Baltzis BC,Fredrickson AG

更新日期：1984-03-01 00:00:00

abstract：:Rainforest aquatic ecosystems include complex habitats with scarce information on their unicellular eukaryote diversity and community structure. We have investigated the diversity of ciliates in freshwater and brackish environments along the Brazilian Atlantic Forest, based on the hypervariable V4 region of the 18S-rD...

journal_title：Microbial ecology

authors： Fernandes NM,Campello-Nunes PH,Paiva TS,Soares CAG,Silva-Neto ID

更新日期：2020-10-06 00:00:00

abstract：:The predatory activity of bdellovibrios is affected by various environmental pollutants such as detergents, heavy metals, and pesticides. This was shown in a two-membered system ofBdellovibrio andPhotobacterium, in which the effect of the predator on the bioluminescence of the prey indicated the activity of the former...

journal_title：Microbial ecology

authors： Varon M,Shilo M

更新日期：1981-06-01 00:00:00

abstract：:A growing body of evidence now supports the isolation of microorganisms from ancient materials. However, questions about the stringency of extraction methods and the genetic relatedness of isolated organisms to their closest living relatives continue to challenge the authenticity of these ancient life forms. Previous ...

journal_title：Microbial ecology

authors： Greenblatt CL,Baum J,Klein BY,Nachshon S,Koltunov V,Cano RJ

更新日期：2004-07-01 00:00:00

abstract：:The diversity and the community structure of sulfate-reducing bacteria (SRB) in an anaerobic continuous bioreactor used for treatment of a sulfate-containing wastewater were investigated by fluorescence in situ hybridization. Hybridization to the 16S rRNA probe EUB338 for the domain Bacteria was performed, followed by...

journal_title：Microbial ecology

authors： Icgen B,Moosa S,Harrison ST

更新日期：2007-01-01 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

authors： Wong FK,Lacap DC,Lau MC,Aitchison JC,Cowan DA,Pointing SB

更新日期：2010-11-01 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

authors： Paul JH

更新日期：1996-11-01 00:00:00

abstract：:Bacteria of the family Rickettsiaceae (order Rickettsiales, alpha-Proteobacteria) are mainly known to be endosymbionts of arthropods with the capability to infect also vertebrate cells. Recently, they have also been found as leech endocytobionts. In the present paper, we report the first finding of a bacterium belongi...

journal_title：Microbial ecology

authors： Vannini C,Petroni G,Verni F,Rosati G

更新日期：2005-04-01 00:00:00

abstract：:In this study, we hypothesized that sympatrically grown farmed fish, i.e. fish which experience similar environmental conditions and nutritionally similar diets, would have more convergent gut microbiota. Using a "common garden" approach, we identified the core microbiota and bacterial community structure differences ...

journal_title：Microbial ecology

authors： Nikouli E,Meziti A,Smeti E,Antonopoulou E,Mente E,Kormas KA

更新日期：2021-02-01 00:00:00

abstract：:Bisphenol A (BPA) is a common ingredient in plastic wares and epoxy resins that are essential for our daily life. Despite the obvious benefits, BPA may act as an environmental endocrine disruptor, causing metabolic, reproductive, and/or developmental consequences and diseases in humans and other organisms. Although pr...

journal_title：Microbial ecology

authors： Oh S,Choi D

更新日期：2019-04-01 00:00:00

abstract：:Foliar chemistry influences leaf decomposition, but little is known about how litter chemistry affects the assemblage of bacterial communities during decomposition. Here we examined relationships between initial litter chemistry and the composition of the bacterial community in a stream ecosystem. We incubated replica...

journal_title：Microbial ecology

authors： Wymore AS,Liu CM,Hungate BA,Schwartz E,Price LB,Whitham TG,Marks JC

更新日期：2016-05-01 00:00:00

abstract：:Bacterial respiration contributes to atmospheric carbon dioxide accumulation and development of hypoxia and is a critical, often overlooked, component of ecosystem function. This study investigates the concept that maintenance respiration is a significant proportion of bacterial respiration at natural nutrient levels ...

journal_title：Microbial ecology

authors： Vikström K,Wikner J

更新日期：2019-04-01 00:00:00

abstract：:Eucalyptus plantations offer a cost-effective and renewable source of raw material. There is substantial interest in improving forestry production, especially through sustainable strategies such as the use of plant growth-promoting bacteria. However, little is known about Eucalyptus microbiology. In this study, the en...

journal_title：Microbial ecology

authors： Fonseca EDS,Peixoto RS,Rosado AS,Balieiro FC,Tiedje JM,Rachid CTCDC

更新日期：2018-01-01 00:00:00

abstract：:The abundance and biomass of heterotrophic flagellates were estimated monthly in sediments of Botany Bay during March 1999-February 2000. The annual abundance and biomass were in the ranges of 0.46-4.70 x 10(5) cells/cm(3) and of 0.30-8.61 micro g C/cm(3), respectively. The majority of heterotrophic flagellates (93-10...

journal_title：Microbial ecology

authors： Lee WJ,Patterson DJ

更新日期：2002-05-01 00:00:00

abstract：:Experiments were done to test the hypothesis that atmospheric CH(4) oxidizers in a well-drained alpine tundra soil are supported by CH(4) production from anaerobic microsites in the soil. Soil was subjected to 22 days of anaerobic conditions with elevated H(2) and CO(2) in order to stimulate methanogenesis. This treat...

journal_title：Microbial ecology

authors： West AE,Schimdt SK

更新日期：2002-05-01 00:00:00

abstract：:A culture-independent molecular phylogenetic approach was used to study prokaryotic diversity in an anoxic activated sludge from a municipal wastewater treatment plant. Two 16S rRNA gene libraries were constructed using total genomic DNA and amplified by polymerase chain reaction using primers specific for archaeal or...

journal_title：Microbial ecology

authors： Chouari R,Le Paslier D,Daegelen P,Dauga C,Weissenbach J,Sghir A

更新日期：2010-08-01 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

authors： Palijan G

更新日期：2012-07-01 00:00:00

abstract：:Heterotrophic bacteria in sea ice play a key role in carbon cycling, but little is known about the predominant players at the phylogenetic level. In a study of both algal bands and clear ice habitats within summertime Arctic pack ice from the Chukchi Sea, we determined the abundance of total bacteria and actively resp...

journal_title：Microbial ecology

authors： Junge K,Imhoff F,Staley T,Deming JW

更新日期：2002-04-01 00:00:00

abstract：:The diversity and composition of soil bacterial communities in three topographic sites (summit, foot slope, and lakeshore) from subtropical montane forest ecosystem in Taiwan were examined by using 16S rRNA gene clone library analysis. This locality is temperate, perhumid, and has low soil acidity (pH < 4), which is a...

journal_title：Microbial ecology

authors： Lin YT,Huang YJ,Tang SL,Whitman WB,Coleman DC,Chiu CY

更新日期：2010-02-01 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

authors： Ogunseitan OA

更新日期：1996-05-01 00:00:00

abstract：:Rice root-associated microbial community play an important role in plant nutrient acquisition, biomass production, and stress tolerance. Herein, root-associated community assembly was investigated under different phosphate input levels in phosphorus (P)-deficient paddy soil. Rice was grown in a long-term P-depleted pa...

journal_title：Microbial ecology

authors： Long XE,Yao H

更新日期：2020-02-01 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

authors： Trevors JT,Mayfield CI,Inniss WE

更新日期：1982-10-01 00:00:00

abstract：:The marine, free-living Stilbonematinae (Nematoda: Desmodorida) inhabit the oxygen sulfide chemocline in marine sands. They are characterized by an association with ectosymbiotic bacteria. According to their ultrastructure the bacteria are Gram-negative and form morphologically uniform coats that cover the entire body...

journal_title：Microbial ecology

authors： Polz MF,Felbeck H,Novak R,Nebelsick M,Ott JA

更新日期：1992-11-01 00:00:00

abstract：:The genus Prochlorococcus is globally abundant and dominates the total phytoplankton biomass and production in the oligotrophic ocean. The single species, Prochlorococcus marinus, comprises six named ecotypes. Our aim was to analyze the taxonomic structure of the genus Prochlorococcus. We analyzed the complete genomes...

journal_title：Microbial ecology

authors： Thompson CC,Silva GG,Vieira NM,Edwards R,Vicente AC,Thompson FL

更新日期：2013-11-01 00:00:00

abstract：:Peatland testate amoebae (TA) are well-established bioindicators for depth to water table (DWT), but effects of hydrological changes on TA communities have never been tested experimentally. We tested this in a field experiment by placing Sphagnum carpets (15 cm diameter) collected in hummock, lawn and pool microsites ...

journal_title：Microbial ecology

authors： Marcisz K,Fournier B,Gilbert D,Lamentowicz M,Mitchell EA

更新日期：2014-05-01 00:00:00

abstract：:Rhizoremediation has been suggested as an attractive bioremediation strategy for the effective breakdown of pollutants in soil. The presence of plant root exudates such as organic acids, sugars, and amino acids that may serve as carbon sources or biosynthetic building blocks and the limited bioavailability of iron may...

journal_title：Microbial ecology

authors： Dinkla IJ,Janssen DB

更新日期：2003-01-01 00:00:00

abstract：:The effect of freeze-thaw (FT) cycles on Arctic tundra soil bacterial community was studied in laboratory microcosms. FT-induced changes to the bacterial community were followed over a 60-day period by terminal restriction fragment length polymorphism (T-RFLP) profiles of amplified 16S rRNA genes and reverse transcrib...

journal_title：Microbial ecology

authors： Männistö MK,Tiirola M,Häggblom MM

更新日期：2009-10-01 00:00:00