TABLE 2.

Adsorption rate (k) means of susceptible and resistant Synechococcus-phage interactions

Phage isolate	Synechococcus straina	S/R interactionb	Adsorption rate mean (k)	t test P valuec
S-RIM1	WH7803	S	5.0 × 10−10
	WH7803R8	S	6.1 × 10−10	0.155
	WH7803R8R21	S	5.5 × 10−10	0.615
S-RIM3	WH8018	S	2.3 × 10−10
	WH8018R3	R	NSd	0.007
	WH8018	S	5.3 × 10−10
	WH8018R3R2R6	R	NSd	0.003
	WH8101	S	7.0 × 10−10
	WH8101R3	R	1.9 × 10−10	0.011
	WH8101	S	7.0 × 10−10
	WH8101R3R32	R	1.5 × 10−10	0.009
S-RIM6	WH7803	S	3.0 × 10−10
	WH7803R8	S	4.2 × 10−10	0.346
	WH8018	S	4.3 × 10−10
	WH8018R3R2R6	R	NSd	0.014
S-RIM7	WH7803	S	8.2 × 10−10
	WH7803R4	S	1.6 × 10−9	0.02
	WH7803R7	R	NSd	0.051
	WH7803R8	S	1.2 × 10−9	0.224
	WH8012	S	9.5 × 10−10
	WH8012R7	R	NSd	0.002
S-RIM8	WH7803	S	4.2 × 10−10
	WH7803R8	R	NSd	0.0002

^aAll cultures were grown from single colonies except WH8012.

^bS, susceptible; R, resistant.

^cThe mean adsorption rate of phage on the ancestral susceptible strain was compared to the mean adsorption rate of the same phage on the resistant strain.

^dNS, not significantly different from zero according to regression analysis.