TABLE 2.

Attachment of A. tumefaciens strains to plants

Plant and organ or tissue	% Bacterial inoculum attacheda
	C58	A205
Carrot suspension culture cells	35 ± 5	1 ± 2
Tomato root segments	21 ± 2	0 ± 1
A. thaliana root segments	20 ± 3	0 ± 2
Alfalfa root segments	20 ± 5	29 ± 5
Bean root segments	20 ± 2	13 ± 5
Pea root segments	14 ± 2	12 ± 3

^aAttachment was measured after 2 h of incubation in 1/10 dilution of MS salts containing 0.4% sucrose. Shown are means ± standard deviations of a minimum of three experiments.