Biodegradation of endosulfan and pendimethalin by three strains of bacteria isolated from pesticides-polluted soils in the Sudan

Applied Biological Chemistry

Table 1 Concentrations of endosulfan isomers and pendimethalin (mM L⁻¹) following incubation with the three bacteria strains in mineral salt medium

Pesticides type	Times (days)	Isomers	B. safensis strain FO-36bT	B. cereus strain ATCC14579T	B. subtilis subsp. inaquosorum strain KCTC 13429T	LSD
Endosulfan	0	Alpha	0.66 ± 0.0	0.66 ± 0.0	0.66 ± 0.0	0.0001
	0	Beta	0.32 ± 0.0	0.32 ± 0.0	0.32 ± 0.0	0.000
	3	Alpha	0.49 ± 0.0056^A	0.29 ± 0.0023^B	0.06 ± 0.278^C	0.0046
	3	Beta	0.25 ± 0.0015^A	0.12 ± 0.0035^B	0.03 ± 0.0039^C	0.0063
	7	Alpha	0.41 ± 0.0051^A	0.27 ± 0.0017^B	0.05 ± 0.0011^C	0.0036
	7	Beta	0.19 ± 0.00193^A	0.12 ± 0.00053^B	0.03 ± 0.00225^C	0.0037
	14	Alpha	0.27 ± 0.00225^A	0.22 ± 0.0004^B	0.04 ± 0.115^C	0.1327
	14	Beta	0.13 ± 0.00421^A	0.10 ± 0.00674^B	0.03 ± 0.00219^C	0.0095
Pendimethalin	30	Alpha	0.25 ± 0.00273^A	0.19 ± 0.0082^B	0.03 ± 0.00235^C	0.0104
	30	Beta	0.11 ± 0.0028^A	0.09 ± 0.00195^B	0.02 ± 0.00351^C	0.0056
	0		1.42 ± 0.0	1.42 ± 0.0	1.42 ± 0.0	0.0
	3		0.53 ± 0.0074^C	0.39 ± 0.0153^B	0.63 ± 0.0404^A	0.0499
	7		0.23 ± 0.0036^B	0.36 ± 0.0129^A	0.28 ± 0.037^B	0.0457
	14		0.22 ± 0.0050^C	0.30 ± 0.0099^A	0.26 ± 0.010^B	0.0173
	30		0.19 ± 0.0015^C	0.29 ± 0.0036^A	0.23 ± 0.0036^B	0.0062

Means followed with the same letter (s) in the same row are not significantly different at p = 0.05 according to LSD
Means ± SD Standard deviation, LSD least significant difference, mM L ⁻¹ milliliters mole/liter