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  • 1
    Electronic Resource
    Electronic Resource
    Attachment of Trypanosoma cruzi Epimastigotes to Hydrophobic Substrates and Use of this Property to Separate Stages and Promote Metacyclogenesis (1998)
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 45 (1998), S. 0 
    Details
    ISSN: 1550-7408
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: In vivo, epimastigotes of Trypanosoma cruzi colonize a lipidic superficial layer of the rectal cuticle of the vector Triatoma infestans. In vitro, epimastigotes of four cultured strains and one strain from reduviids use a terminal area of the flagellum to attach to a variety of artificial hydrophobic substances, such as hydrocarbons and a range of synthetic plastics. Trypomastigotes did not attach to these substrates. Hydrophilic molecules, such as neutral or negatively charged polysaccharides. did not facilitate binding. Epimastigotes and trypomastigotes were artificially bound by electrostatic forces to positively charged chitosan or DEAE-Sephacel over their entire surface. Tween 20 and lipid-binding serum albumin effectively inhibited the hydrophobic attachment. Based on this hydrophobic interaction of epimastigotes. a new chromatography technique has been devised to gently separate trypomastigotes from epimastigotes using octacosane-coated beads. Furthermore, the in vitro transformation of epimastigotes to trypomastigotes was enhanced if epimastigotes were permitted to attach to hydrophobic, wax-coated culture vessels.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1550-7408.1998.tb05115.x
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    Paper (German National Licenses)
    Fulltext
  • 2
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    Entwicklung und Anwendung eines physikalisch begründeten Simulationsmodells für die Erosion geneigter landwirtschaftlicher Nutzflächen (2019)
    Selbstverl. des Inst. für Geograph. Wiss., Berlin
    In:  Herausgeberexemplar (FU Berlin) | 96 B 2193
    Details
    Publication Date: 2021-03-29
    Description: Eine wichtige Voraussetzung für die Einführung geeigneter Erosionsschutzmaßnahmen in die landwirtschaftliche Praxis ist eine möglichst genaue, schlagbezogene Quantifizierung der Erosion bzw. des Erosionsrisikos einschließlich der damit verbundenen, langfristigen Folgewirkungen (vgl. RAT FÜR UMWELTFRAGEN, 1935, S. 330ff). Aufgrund der Vielzahl der hierbei zu berücksichtigenden Einzeleinflüsse ist dies nur mit Hilfe computergestützter, mathematischer Modelle möglich. Ziel der vorliegenden Arbeit ist es, ein solches, auf die praktischen Belange des Boden- und Gewässerschutzes abgestelltes Bodenerosionsmodell zu entwickeln.
    Description: research
    Description: DFG, SUB Göttingen
    Keywords: 910.02 ; Anthropogene Geomorphologie ; Bodenaufnahme und Bodenkartierung ; FID-GEO-DE-7
    Language: German
    Type: monograph_digi
    Format: 152
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    CITATION GEO-LEO
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