TABLE 3.

H⁺-ATPase and 99-kDa band quantities from U. maydis plasma membranes^a

Strain and treatment	Amt (AU mg of protein−1) of:
	H+-ATPase	99-kDa protein
IMI 103761
Et-C	16.5 ± 3.0	5.5 ± 1.3
Tri-T	20.5 ± 2.4	11.5 ± 0.8 A
Fen-T	21.6 ± 2.2	9.8 ± 0.8 AC
WT	16.9 ± 1.7	4.5 ± 0.2
A14 (none)	16.4 ± 2.1	11.9 ± 1.9 B
P51 (none)	23.0 ± 2.3 B	13.8 ± 0.6 B

^aData are means ± SEs for six experiments. Letters indicate significant differences evaluated by the least-significant-difference test (at a 95% confidence level) with respect to Et-C-treated sporidia (A), control WT sporidia (B), and P51 (C). No significant differences were found with respect to A14.