Days after treatment HCH isomers recovered from inoculated samples (μg) ± SD* From individual treatment From treatment as a mixture   Uninoculated control medium Mycelium Total Uninoculated control Medium Mycelium Total   α-HCH 0 99.53 ± 4.63 99.30 ± 2.95 - 99.30 ± 2.95 99.64 ± 4.05 99.48 ± 3.78 - 99.48 ± 3.78 10 95.06 ± 2.74 73.12 ± 5.63 - 73.12 ± 5.63 96.44 ± 2.58 75.66 ± 4.58 - 75.66 ± 4.58 20 91.74 ± 3.28 34.77 ± 3.04 2.91 ± 0.25 37.68 ± 3.29 92.80 ± 5.62 32.70 ± 3.25 9.98 ± 0.84 42.67 ± 4.10 30 89.22 ± 3.68 6.25 ± 0.52 2.74 ± 0.18 9.00 ± 0.70 90.74 ± 2.76 2.21 ± 0.14 2.4 ± 0.12 4.61 ± 0.26   β-HCH 0 99.65 ± 2.14 99.33 ± 4.48 - 99.33 ± 4.48 99.38 ± 4.40 99.02 ± 2.28 - 99.02 ± 3.65 10 96.78 ± 4.86 64.62 ± 5.47 - 64.62 ± 5.47 95.43 ± 2.82 68.50 ± 5.23 - 68.50 ± 5.23 20 92.33 ± 3.44 8.94 ± 0.56 3.23 ± 0.24 12.17 ± 0.8 91.90 ± 5.66 9.50 ± 0.84 2.62 ± 0.20 12.11 ± 1.04 30 90.48 ± 5.63 6.20 ± 0.42 2.57 ± 0.20 8.77 ± 0.62 90.73 ± 6.74 1.15 ± 0.10 0.43 ± 0.02 1.58 ± 0.12   γ-HCH 0 98.90 ± 2.23 99.35 ± 4.70 - 99.35 ± 4.70 99.05 ± 3.63 98.56 ± 2.83 - 98.56 ± 2.83 10 95.84 ± 4.82 48.46 ± 3.65 - 48.46 ± 3.65 95.21 ± 4.09 51.37 ± 4.09 - 51.37 ± 4.09 20 91.77 ± 5.78 2.37 ± 0.21 BDL 2.37 ± 0.21 91.96 ± 3.52 3.66 ± 0.28 BDL 3.66 ± 0.28 30 88.08 ± 2.86 BDL BDL BDL 89.85 ± 3.77 BDL BDL BDL   δ-HCH 0 99.07 ± 3.68 98.77 ± 3.08 - 98.77 ± 3.08 99.20 ± 2.65 99.16 ± 4.45 - 99.16 ± 4.45 10 95.21 ± 2.96 69.84 ± 5.26 - 69.84 ± 5.26 96.51 ± 3.54 72.32 ± 6.52 - 72.32 ± 6.52 20 90.86 ± 3.44 30.03 ± 2.36 3.42 ± 0.25 33.45 ± 2.61 91.34 ± 5.00 35.80 ± 2.70 5.66 ± 0.33 41.46 ± 3.03 30 88.75 ± 2.12 8.60 ± 0.64 2.90 ± 0.15 11.50 ± 0.79 88.82 ± 5.74 0.64 ± 0.04 BDL 0.64 ± 0.04

* Average of 5 replicates ± SD; BDL: Below Detectable Limit.

Table 2: Degradation of alpha, beta, gamma and delta isomers of HCH individually and in combination by P. florida.