TABLE 2.

Recovery of E. coli strains from spiked Insch soil at 15°C and different matric potentials^a

Day	Recovery (% of inoculum) at potential (kpa):
	−5		−100		−1500
	WT	clux	WT	clux	WT	clux
0	100	100	100	100	100	100
1	74.7 ab	46.7 a	103.3 b	77.6 ab	86.3 b	49.9 a
5	12.1 ab	3.9 a	24.2 c	20.3 bc	11.6 a	9.4 a
10	1.94 ab	0.91 a	8.74 c	5.00 d	4.06 bd	2.61 ab
20	0.190 ab	0.061 a	0.958 c	0.724 d	0.263 b	0.097 a
35	0.059 a	0.041 a	0.067 a	0.061 a	0.064 a	0.024 b
60	0.0271 ab	0.0105 c	0.0437 d	0.0220 a	0.0335 bd	0.0058 c
90	0.0121 a	0.0031 a	0.0094 a	0.0063 a	0.0357 b	0.0071 a

^aValues with different letters within a row were significantly different. WT, wild type; clux, chromosomally lux marked.