Figure 6.

Anatomy of the Interfascicular Fibers in Wild-Type and Mutant Plants.

(A) to (D) Stem cross sections were taken from the bases of the inflorescence stems of 6-week-old plants and stained with Toluidine blue. Bars = 30 μm.

(A) The wild type.

(B) blh6-1.

(C) knat7.

(D) blh6 knat7.

(E) to (H) Transmission electron micrographs of wild-type and blh6-1 interfascicular fiber secondary walls. The wild type ([E] and [G]); blh6-1 ([F] and [H]). Bars = 10 μm in (E) and (F) and 2 μm in (G) and (H).