Table III.

Catabolism of ABA in G. aparine cell suspensions after treatment with quinmerac

TreatmentTime after TreatmentABAPA
h nmol g−1 fresh wt.
Control065.6 ± 4.00.4 ± 0.1
Control449.4 ± 2.41.7 ± 0.2
Quinmerac451.1 ± 6.4 NS1.6 ± 0.1 NS
Control211.5 ± 0.22.0 ± 0.1
Quinmerac211.4 ± 0.1 NS1.7 ± 0.3 NS

Four-day-old cell suspensions were fed for 2 h with 0.01 mm [3H]-(±)-ABA and then were incubated in the presence of 0.03 mm quinmerac for the times indicated. After HPLC-radiocounting of cell extracts, the fractions containing ABA and PA were quantified by immunoassay. Data are means ±se of five replicates statistically analyzed using at test. Means with NS are not significantly different to control at P < 0.01.