Jm. Wang et al., NEW ASSAY-METHOD FOR PROTOPORPHYRINOGEN OXIDASE-INHIBITORS USING CHLOROPLASTS ISOLATED FROM SPINACIA-OLERACEA L, Bioscience, biotechnology, and biochemistry, 57(12), 1993, pp. 2205-2206
A new assay method for protoporphyrinogen oxidase inhibitors, using st
romal extracts of chloroplasts and a fluorescence micro-plate reader,
was developed. The I50 value of S-23142 which had been confirmed to a
specific protoporphyrinogen oxidase inhibitor was 10(-10) m (100 pm) i
n this assay. These results indicate that this new assay system is ver
y useful and sensitive for screening protoporphyrinogen oxidase inhibt
ors.