Classification of Flax lbf Mutants into Eight Different Groups According to Modified Lignification Pattern.
Groups A to C: Only fiber cells lignified, cell wall thickness decreased. Groups D and E: Only fiber cells lignified, cell wall thickness unchanged. Groups F and G: fibers and surrounding cells lignified, cell wall thickness decreased. Group H: fibers and surrounding cells lignified, cell wall thickness unchanged. Group J: wild-type bast fibers. Number of families in each group is given in brackets. Bar = 10 μm, phloroglucinol-HCl staining of stem cross sections (lignified walls are colored red).