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Cytoplasmic dynein is required to oppose the force that moves nuclei towards the hyphal tip in the filamentous ascomycete Ashbya gossypii

Christine Alberti-Segui, Fred Dietrich, Dominic Hoepfner and Peter Philippsen

Christine Alberti-Segui, Fred Dietrich, Dominic Hoepfner and Peter Philippsen

Nuclear migration in A. gossypii wild-type hyphae labeled with histone H4-GFP and followed for 7 hours by in vivo time-lapse microscopy. Acquisition interval, 2 minutes; movie speed, 10 frames per second (one second represents 20 minutes real time). Video microscopy was performed using a Plan Neofluar 40 PH2 objective and a 1.6 camera magnification lens. One z-axis plane fluorescence image was acquired.

Nuclear behaviour in a hyphal tip compartment of A. gossypii hyphae carrying GFP-labelled nuclei. Acquisition interval, 1 minute; movie speed, 10 frames per second (one second represents 10 minutes real time). Pictures were taken with a Plan-Neofluar 100, 1.3 oil PH3 objective. One z-axis plane fluorescence image was acquired.

Nuclear migration in A. gossypii wild-type hyphae in the presence of 8 mM nocodazole. Acquisition interval, 1 minute; movie speed, 10 frames per second (one second represents 10 minutes real time). Pictures were taken with a Plan-Neofluar 100, 1.3 oil PH3 objective. One z-axis plane fluorescence image was acquired.

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