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Optodes visualize ammonium distribution within plant root system

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Gwynne D. Koch

Nitrogen compounds such as ammonium are important nutrients for plant growth. Scientists at the University of Gothenburg in Sweden have created a ratiometric imaging optode that, when coupled with a recently developed calibration method, can be used to quantify ammonium and to visualize its distribution over time close to an intact plant root system. Ammonium turnover in root systems typically is studied using a technique that employs fast-scanning microelectrodes and microscopy; however, this provides limited coverage and can be used only on roots grown in solution. In comparison, the...Read full article

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    Published: March 2008
    ammoniumBiophotonicsMicroscopyNews & FeaturesNitrogen compoundsratiometric imaging optodeSensors & Detectors

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