“…Since phytoene desaturase (PDS) catalyzes dehydrogenation of phytoene to zeta carotene which protects chlorophyll from photo oxidation [1][2][3][4], it has been a well-known major target enzyme of herbicides in the cartenoid biosynthesis pathway and has attracted considerable attention. Up to now, many novel compounds (e.g., 2,6-diphenylpyridines [5,6], phenoxypyridincarbonamides [7,8], diarylpyrimidines [9,10], 1,1'-biphenyl derivatives [11], tetrahydropyrimidinones [12,13], phenylpyrimidinones [14], and diphenylpyrrolidinones [15]) have been identified as phytoene desaturase inhibitors and commercialized.…”