In this video, we describe a staining procedure to visualize cellulose deposition within cell walls of Arabidopsis thaliana, a dicot plant, using calcofluor white, which specifically binds to β-linked glucans, exhibiting fluorescence under UV light.
Protocol
1. Stem Embedding Make a 7% agarose solution in water (7 g of electrophoresis-grade agarose in 100 ml distilled water). Dissolve the agarose by autoclaving for 20 min or by microwaving for 20 min at lowest intensity (e.g., 10% intensity of a 1,250 watt microwave). Prepare a homemade mold for embedding the stems using plastic vials. Using a razor blade, cut off the conical bottom of a 2 ml screw-cap microcentrifuge tube (Part A). With a syringe needle, puncture a…
Representative Results
Figure 1. Homemade mold for embedding the stems. On the left side; top of the 2 ml screw-cap microcentrifuge tube (Part A) and the bottom from the 0.6 ml microcentrifuge tube (Part B). On the right side; the Parafilm holding the two parts; A and B to form the final mold.
Declarações
The authors have nothing to disclose.
Materials
Agarose
EMD
MERC2125
CAS Number: 9012-36-6
Fluorescent Brightener 28/ Calcofluor White Stain
Sigma
F3543
4,4'-Bis[[4-[bis(2-hydroxyethyl)amino]-6-anilino-1,3,5-triazin-2-yl]amino]stilbene-2,2'-disulphonic acid [CAS Number 4404-43-7]
Calcofluor White Staining: A Simple Method for UV-Induced Fluorescence Visualization of Cellulose Deposits in Cell Walls of Dicot Plant Stem Sections. J. Vis. Exp. (Pending Publication), e21060, doi: (2023).