Rates for the hydrolysis of the eight isomers of cypermethrin and esfenvalerate by 13 expressed H. armigera esterases and two E3 control enzymes.

The values shown are the mol substrate hydrolysed per mol of enzyme per minute under the conditions of the assay. They are means with standard errors based on an average of four replicates. The enzymes are ordered according to their phylogenetic relationships as presented in Wu et al.[10] and Teese et al. [21]. Note that the large standard errors for many estimates reflect the multiplicative effects of the error variances in the estimates of pyrethroid hydrolysing activities and enzyme concentrations (from Table 1).