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 mediate the biorecognition and selection of nonself (microalgal) prey items by the microplanktonic marine phagotroph Oxyrrhis marina. The potential importance of lectin-glycan interactions is first considered in view of findings which demonstrate that O. marina possesses lectin-like feeding receptors specific for prey-surface (mannose) glycoconjugates. Secondly, some conceptual bases for indirect or 'opsonic' modes of prey biorecognition mediated by soluble prey-labelling proteins are presented. Finally, the possibility that some accounts of selective feeding in O. marina might result from the noxious effects of prey-associated chemicals rather than active 'distaste' by phagotrophic cells is discussed. Recent evidence for toxic superoxide (O(2)(-)) production by marine microalgae is afforded particular attention given that release of O(2)(-) anions can be exacerbated by the binding of mannose-specific lectins to the microalgal cell wall; a novel model for grazing-activated chemical defence is proposed.
journal_name
Microb Ecoljournal_title
Microbial ecologyauthors
Martel CMdoi
10.1007/s00248-008-9421-8subject
Has Abstractpub_date
2009-05-01 00:00:00pages
589-97issue
4eissn
0095-3628issn
1432-184Xjournal_volume
57pub_type
杂志文章,评审abstract::The phospholipid fatty acid (PLFA) profiles of soil microbial communities were determined in relation to the patterns of tree cover in a mature Norway spruce plantation. Replicate samples of the surface organic layers were taken close to the trunk, at 1 m and at 2 m (under the edge of the canopy) beneath five trees. S...
journal_title:Microbial ecology
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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
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doi:10.1007/s00248-001-1049-x
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journal_title:Microbial ecology
pub_type: 杂志文章
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abstract::Adenosine triphosphate in soil is measured by the luciferin-luciferase bioluminescence method. Cation exchange in the ATP extraction procedure is used to reduce the content of, e.g., Fe, Al, and Cations in extracts. The efficiency of the cation exchange is determined by measuring the concentration of Fe by X-ray fluor...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/BF02010504
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journal_title:Microbial ecology
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doi:10.1007/BF00172569
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abstract::The MHV-68 (designed as Murid herpesvirus 4 (MuHV 4) strain 68) isolated from two rodents, Myodes glareolus and Apodemus flavicollis, is considered as a natural pathogen of free-living murid rodents. Recently, the detection of MHV antibodies in the blood of animals living in the same biotope as MHV-infected mice has s...
journal_title:Microbial ecology
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doi:10.1007/s00248-011-9907-7
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journal_title:Microbial ecology
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doi:10.1007/BF02016814
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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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journal_title:Microbial ecology
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doi:10.1007/s00248-009-9513-0
更新日期:2009-08-01 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::> Abstract A new procedure to investigate the relationship between bacterial cell size and activity at the cellular level has been developed; it is based on the coupling of radioactive labeling of bacterial cells and cell sorting by flow cytometry after SYTO 13 staining. Before sorting, bacterial cells were incubated ...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s002489900160
更新日期:1999-08-01 00:00:00
abstract::Yeast communities of decayingStenocereus gummosus were analyzed for spatial, temporal, and physiological characteristics. Analysis of random samples within plants, between plants, and between localities shows that the species proportions of the yeast community are relatively constant within plants and between localiti...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/BF02011463
更新日期:1982-06-01 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
pub_type: 杂志文章
doi:10.1007/s00248-006-9009-0
更新日期:2007-01-01 00:00:00
abstract::Sprays of commercial preparations of the bacterium Bacillus thuringiensis subsp. israelensis are widely used for the control of mosquito larvae. Despite an abundant literature on B. thuringiensis subsp. israelensis field efficiency on mosquito control, few studies have evaluated the fate of spores in the environment a...
journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/s00248-013-0360-7
更新日期:2014-04-01 00:00:00
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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
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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::The halophilic, hydrocarbonoclastic bacteria and archaea inhabiting two hypersaline coastal areas in Kuwait, one in the north and the other in the south, were counted and characterized. Environmental parameters in both areas were similar, with the exception of the soil organic carbon content, which was in the north hi...
journal_title:Microbial ecology
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doi:10.1007/s00248-014-0386-5
更新日期:2014-05-01 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
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doi:10.1007/s00248-013-0184-5
更新日期:2013-04-01 00:00:00
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journal_title:Microbial ecology
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更新日期:2007-07-01 00:00:00
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journal_title:Microbial ecology
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更新日期:2014-01-01 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:2011-05-01 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
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journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/BF02011207
更新日期:1986-06-01 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
pub_type: 杂志文章
doi:10.1007/s00248-010-9686-6
更新日期:2010-10-01 00:00:00
abstract::The bacterial flora in the intestinal tract of goldfish (Carassius auratus) was investigated at different stages of fish development. The floras of the diets and the water and sediment of a culture pond were also analyzed. The total counts in the intestine ranged from 2.2 × 10(6)-2.1 × 10(8) cells g(-1) wet weight.Aer...
journal_title:Microbial ecology
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doi:10.1007/BF02012646
更新日期:1988-05-01 00:00:00
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journal_title:Microbial ecology
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doi:10.1007/s00248-016-0878-6
更新日期:2017-01-01 00:00:00
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journal_title:Microbial ecology
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更新日期:2020-10-01 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