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Velocimetric third-harmonic generation microscopy: micrometer-scale quantification of morphogenetic movements in unstained embryos.

Delphine Débarre·Willy Supatto·Emmanuel Farge·Bruno Moulia·Marie-Claire Schanne-Klein·Emmanuel Beaurepaire
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Abstract

We demonstrate the association of third-harmonic generation (THG) microscopy and particle image velocimetry (PIV) analysis as a novel functional imaging technique for automated micrometer-scale characterization of morphogenetic movements in developing embryos. Using a combined two-photon-excited fluorescence and THG microscope, we characterize the optical properties of Drosophila embryos and show that sustained THG imaging does not perturb sensitive developmental dynamics. Velocimetric THG imaging provides a quantitative description of the dynamics of internal structures in unstained wild-type and mutant embryos.

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AlgorithmsAnimalsDrosophilaEmbryo, NonmammalianImage EnhancementImage Interpretation, Computer-AssistedImaging, Three-DimensionalMicroscopy, Fluorescence, MultiphotonMicroscopy, VideoMovementReproducibility of ResultsRheologySensitivity and SpecificityStaining and LabelingEvaluation StudyJournal ArticleResearch Support, Non-U.S. Gov't

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Delphine Débarre, Willy Supatto, Emmanuel Farge, Bruno Moulia, Marie-Claire Schanne-Klein, Emmanuel Beaurepaire. 2004-12-15. Velocimetric third-harmonic generation microscopy: micrometer-scale quantification of morphogenetic movements in unstained embryos.. https://doi.org/10.1364/ol.29.002881

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