Table I. Physical dimensions of wild-type and Atsfh1 nullizygous root hair Golgi membranes.

Plant genotype	Cisternal length	Stack width	Cisternal width	Cisternae per stack
	nm	nm	nm
AtSFH1	750 ± 154 (22)	290 ± 81 (19)	30 ± 7 (22)	4.7 ± 0.4 (22)
Atsfh1::T-DNA	690 ± 162 (26)	321 ± 85 (24)	34 ± 7 (110)	4.4 ± 0.7 (110)

Cisternal length represents the longest dimension, and width was calculated for each cisterna in the mid-axis of each Golgi stack. Stack width is measured along the cis-trans axis at the midpoint of each stack. Numbers in parentheses represent the number of Golgi stacks analyzed from a total of three independent plants.