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3 protocols using wavefx spinning disk confocal system

1

Multimodal Imaging of Cell Adhesion and Migration

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A WaveFX spinning disk confocal system (Quorum Technologies) equipped with an Eclipse Ti microscope (Nikon) and an ImagEM-CCD camera (Hamamatsu Photonics) was used for imaging the IF-stained coverslips and for recording cell migration when multiple channel acquisition was required. A Plan Fluor 40× objective (NA 1.3) was used for imaging the IF-stained coverslips. A Nikon 10× Ph1 ADL objective (NA 0.25) and a Plan Fluor 20× objective (NA 0.75) were used to image cell migration. DAPI, Alexa Fluor 488, Alexa Fluor 555, and acti-stain 670 were excited by laser at 405, 491, 561, and 642 nm, respectively (Semrock). Emission filters for those fluorophores were 460/50, 525/50, 593/40 or 620/60, and 700/75, respectively (Semrock). Images were acquired and analyzed with MetaMorph software (Molecular Devices).
TIRF microscopy and cell migration movies in phase contrast were performed using an inverted IX71 microscope (Olympus) with a Retiga EXi CCD camera (QImaging). An Olympus UPlanFl N 10× objective (NA 0.30) was used for cell-migration assays. TIRF images were taken with an Olympus PlanApo 60× oTIRFM objective (NA 1.45) and a 488-nm laser line from a HeNe laser (Prairie Technologies). MetaMorph software was used for image acquisition and analysis.
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2

Quantifying Fungal Cell Wall Chitin

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Fungi on coverslips were incubated with 50 μL of a chitin probe solution (TMR-Star Conjugated Chitin-binding Probe, a gift from New England Biolabs Ltd.) (20 μg/mL in PBS) overnight in the dark at 4°C. Coverslips were rinsed with PBS, dried and processed as described for α(1,3)-glucan staining. Fluorescence was visualized on a spinning disk confocal microscope (WaveFX spinning disk confocal system, Quorum Technologies) and signals were quantified using Volocity 6.3 imaging software (PerkinElmer). For each strain/polysaccharide, at least 30 images were analyzed and exposure was controlled manually at 900 ms. Control samples were processed in parallel except that the primary antibody or chitin probe was not added.
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3

Imaging Zebrafish Embryo Development

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Embryos were collected for 30 min, then dechorionated using 5% bleach for 1 min and rinsed with water. Embryos were then aligned in a Fluorodish cell culture dish (World Precision Instruments) and covered with Halocarbon oil 400. Live imaging was performed using a WaveFX spinning disk confocal system (Quorum) and a DM6000B inverted microscope (Leica). Images were captured and processed using Volocity 3D image analysis software (PerkinElmer).
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