Abstract:
:Bacterial degradation is an ecosystem service that offers a promising method for the remediation of contaminated soils. To assess the dynamics and efficiency of bacterial degradation, reliable microbial simulation models, along with the relevant processes, are required. We present an approach aimed at improving reliability by studying the relevance and implications of an important concept from theoretical ecology in the context of a bacterial system: conditional dispersal denoting that the dispersal strategy depends on environmental conditions. Different dispersal strategies, which either incorporate or neglect this concept, are implemented in a bacterial model and results are compared to data obtained from laboratory experiments with Pseudomonas putida colonies growing on glucose agar. Our results show that, with respect to the condition of resource uptake, the model's correspondence to experimental data is significantly higher for conditional than for unconditional bacterial dispersal. In particular, these results support the hypothesis that bacteria disperse less when resources are abundant. We also show that the dispersal strategy has a considerable impact on model predictions for bacterial degradation of resources: disregarding conditional bacterial dispersal can lead to overestimations when assessing the performance of this ecosystem service.
journal_name
Microb Ecoljournal_title
Microbial ecologyauthors
Banitz T,Johst K,Wick LY,Fetzer I,Harms H,Frank Kdoi
10.1007/s00248-011-9927-3subject
Has Abstractpub_date
2012-02-01 00:00:00pages
339-47issue
2eissn
0095-3628issn
1432-184Xjournal_volume
63pub_type
杂志文章abstract::A simple agar plating method for the description of microbial communities is described. This method is based on the quantification of the numbers of bacterial colonies in 6-7 age-based classes as they appear on agar media over a period of 6-10 days. The method can be used to quantify microbial communities in different...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/BF00170116
更新日期:1994-01-01 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::Septate endophytes proliferating in the roots of grasslands' plants shed doubts on the importance of arbuscular mycorrhizal (AM) symbioses in dry soils. The functionality and diversity of the AM symbioses formed in four replicates of three adjacent plant communities (agricultural, native, and restored) in Grasslands N...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-009-9629-2
更新日期:2010-05-01 00:00:00
abstract::In recent years, several episodes of mass mortality of sessile epibenthic invertebrates, including sponges, have been recorded worldwide. In the present study, we report a disease event on Ircinia variabilis recorded in September 2009 along the southern Adriatic and Ionian seas (Apulian coast), with the aim to quantif...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-012-0068-0
更新日期:2012-10-01 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::It is suspected that phagotrophic marine protozoa might possess feeding receptors that enable them to discern the nutritional quality of individual prey items (during prey-handling) on the basis of their cell-surface biochemistry. This article reviews advances in our understanding of the molecular mechanisms that medi...
journal_title:Microbial ecology
pub_type: 杂志文章,评审
doi:10.1007/s00248-008-9421-8
更新日期:2009-05-01 00:00:00
abstract::Freshwater aquifers in granitic rocks are widespread microbial habitats in the terrestrial subsurface. Microbial populations in deep granitic groundwater from two recently drilled (1 and 2 years) and two old boreholes (14 and 25 years) were compared. The 16S rRNA gene sequences related to "Candidatus Magnetobacterium ...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-013-0184-5
更新日期:2013-04-01 00:00:00
abstract::Besides the incipient research effort, the role of parasites as drivers of the reduction affecting pollinator populations is mostly unknown. Given the worldwide extension of the beekeeping practice and the diversity of pathogens affecting Apis mellifera populations, honey bee colonies are a certain source of parasite ...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-017-0975-1
更新日期:2017-11-01 00:00:00
abstract::The high plasticity of root morphology, physiology, and function influences root-associated microbiomes. However, the variation in root-associated microbiome diversity and structures in response to root diameter at different root depths remains poorly understood. Here, we selected black locust (Robinia pseudoacacia L....
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-020-01678-4
更新日期:2021-01-15 00:00:00
abstract::Extracellular phosphatase production by phytoplankton was investigated in the moderately eutrophic Lipno reservoir, Czech Republic during 2009 and 2010. We hypothesized that production of extracellular phosphatases is an additional mechanism of phosphorus acquisition enabling producers to survive rather than to domina...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-014-0483-5
更新日期:2015-01-01 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::Phytoplankton dynamics, bacterial standing stocks and living microbial biomass (derived from ATP measurements, 0.7-200 mm size class) were examined in 1996 in the newly flooded (1995) Sep Reservoir ('Massif Central,' France), for evidence of the importance of the microbial food web relative to the traditional food cha...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-001-1015-7
更新日期:2002-01-01 00:00:00
abstract::Denitrifying bacteria is a driver of nitrogen removal process in wastewater treatment ecosystem. However, the geographical characteristics of denitrifying bacterial communities associated with activated sludge from diverse wastewater treatment plants (WWTPs) are still unclear. Here, quantitative PCR and next-generatio...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-018-1236-7
更新日期:2019-02-01 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
pub_type: 杂志文章
doi:10.1007/s00248-003-2016-5
更新日期:2004-07-01 00:00:00
abstract::The influence of bacterial communities on the formation of carbonate deposits such as moonmilk was investigated in Altamira Cave (Spain). The study focuses on the relationship between the bacterial communities at moonmilk deposits and those forming white colonizations, which develop sporadically throughout the cave. U...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-010-9731-5
更新日期:2011-01-01 00:00:00
abstract::Regeneration of nutrients in aquatic ecosystems may be affected by autolysis, bacterial degradation, and activities of phagotrophic organisms. To examine the relative importance of these processes, mineralization of carbon, nitrogen, and phosphorus was studied in a two-stage continuous culture system. In the first sta...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/BF02010599
更新日期:1985-09-01 00:00:00
abstract::The ability of strains of the genusRhodococcus to transform chlorinated phenolic compounds was studied. Noninduced cells of several strains ofRhodococcus, covering at least eight species, were found to attack mono-, di-, and trichlorophenols by hydroxylation at theortho position to chlorocatechols. 3-chlorophenol and ...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/BF02030123
更新日期:1989-09-01 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
pub_type: 杂志文章
doi:10.1007/s00248-004-0256-7
更新日期:2005-02-01 00:00:00
abstract::The relationship between groundwater geochemistry and microbial community structure can be complex and difficult to assess. We applied nonlinear and generalized linear data analysis methods to relate microbial biomarkers (phospholipids fatty acids, PLFA) to groundwater geochemical characteristics at the Shiprock urani...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-004-0137-0
更新日期:2006-02-01 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::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
abstract::Heterotrophic bacteria are, in many aquatic systems, reliant on autochthonous organic carbon as their energy source. One exception is low-productive humic lakes, where allochthonous dissolved organic matter (ADOM) is the major driver. We hypothesized that bacterial production (BP) is similarly regulated in subarctic e...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-015-0714-4
更新日期:2016-05-01 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
pub_type: 杂志文章
doi:10.1007/BF00167789
更新日期:1992-11-01 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::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::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::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
pub_type: 杂志文章
doi:10.1007/s00248-009-9516-x
更新日期:2009-10-01 00:00:00
abstract::The small-scale distribution of several structural (bacterial abundance, phytopigment, total and soluble protein, and carbohydrate content) and functional ecological variables (enzymatic activities, frequency of dividing cells) was investigated in coastal sediments during a spring bloom. For bacterial abundance, enzym...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s002480000109
更新日期:2001-08-01 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
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 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