posted on 2023-10-31, 17:34authored byChristopher J. Brooks, Hagop S. Atamian, Stacey L. Harmer
(A) Cross-section of whole sunflower stem. Stem section stained with 0.05% toluidine blue and image taken at 25× magnification using a dissection scope. (B) Cross-section of stem peel stained with 0.01% toluidine blue and image taken at 100× magnification using a Zeiss Axioskop 2 plus.