White rot fungi were able to mineralize the aromatic ring carbon of al
achlor to CO2. After 122 days, 14 and 12% of the alachlor that was ini
tially present in malt extract cultures supplemented with a wood subst
rate was mineralized at room temperature by Ceriporiopsis subvermispor
a and Phlebia tremellosa, respectively. Although Phanerochaete chrysos
porium mineralized alachlor at 25 degrees C, it did so more slowly tha
n the other two white rot fungi. The brown rot fungus Fomitopsis pinic
ola did not mineralize alachlor.