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Xylem-Wasserverteilung in Holzpflanzen visualisiert mit einem Kryo-Scanning-Elektronenmikroskop
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1Department of Plant Ecology,Forestry and Forest Products Research Institute (FFPRI), 2Kansai Research Center,Forestry and Forest Products Research Institute (FFPRI), 3Department of Wood Properties and Processing,Forestry and Forest Products Research Institute (FFPRI), 4Faculty of Agriculture,Kyushu University, 5Department of Bacteriology,University of Wisconsin, 6Research Faculty of Agriculture,Hokkaido University
Chapters
- 00:04Title
- 01:14Sampling: Tension Relaxation within Water Column of Xylem Conduits
- 03:00Freeze Fixation with Liquid Nitrogen
- 04:04Specimen Preparation
- 05:49Transfer to the Cryo-SEM Specimen Chamber
- 06:30Freeze-etching
- 07:00Results: Xylem Water Distribution in Woody Plants
- 09:04Conclusion
Die Beobachtung der Wasserverteilung innerhalb des Xylems liefert wichtige Informationen über die Wasserströmungsdynamik in holzigen Pflanzen. In dieser Studie zeigen wir den praktischen Ansatz zur Beobachtung der Xylem-Wasserverteilung vor Ort mithilfe eines Kryostats und Kryo-SEM, der artefaktische Veränderungen des Wasserstatus während der Probenvorbereitung eliminiert.
Tags
XylemWater DistributionCryo-scanning Electron MicroscopeFreeze-fixationXylem TensionWater PotentialCavitationXylem CellsAerotomeWoody PlantsWater RegimeSeasonal VariationBiotic StressFreeze/thaw CycleWet WoodSampling ProcedurePressure ChamberRelaxation TreatmentWater SurfaceTranspirationVessel Length
