Class 11 Mutants

Member lines: bm-24

Gross epicuticular wax phenotype: Sparse bloom

Epicuticular wax morphology:

(see Jenks et al., 1992 and scanning electron micrograph to the right of this table)

tissue	cork-silica cell associated wax	cuticle wax
leaf sheath (abaxial surface)	amorphous globs	smooth
leaf blade (abaxial surface)	small globs	smooth

Linkage group: h12

Genotype: BmBmh12h12

Epicuticular wax load:

(data from Agronomy Farm trial 1992)

line	abaxial leaf sheath	leaf blade
bm-24	1.08 +/- 0.31	1.18 +/- 0.10

Leaf sheath epicuticular wax chemistry:

Leaf sheath epicuticular wax free fatty acids

FFA homologue	% total FFAs	load (mg/cm2)
C16	2.09	0.18
C18	2.18	0.19
C20	0.22	0.02
C22	0.99	0.09
C24	1.24	0.11
C26	0.50	0.04
C28	69.7	6.16
C30	22.6	1.99
C32	0.49	0.04
total	100	8.83

Bm-24 sheath wax contains 82% free fatty acids (FFA).

Agronomic characters:

Bm-24 forms no basal tillers and has wrinkled leaves.

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