We investigated the sorption of three triazine herbicides (atrazine, simazine, and metribuzin) by saponite and beidellite clay minerals saturated with K+, Cs+, Na+, and Ca2+. Saponite clay sorbed a larger fraction of each pesticide from aqueous solution than did beidellite clay. The lower cation-exchange capacity in saponite compared to that in beidellite presumably results in a less crowded in...

Peer-reviewed research is not available to explain Polygonum aviculare L. (prostrate knotweed) control in Cynodon dactylon (bermudagrass) turf, yet P. common and troublesome managed C. turf. Six experiments were conducted determine options for golf roughs Hanover, VA. Studies evaluated hormone, photosystem, ALS inhibiting herbicides. Among a group of eighteen herbicide treatments, only six cont...

The study of human protoporphyrinogen oxidase (hPPO) inhibition can contribute significantly to a better understanding some pathogeneses (e.g., porphyria, herbicide exposure) and the development anticancer agents. Therefore, we prepared new potential inhibitors with Schiff base structural motifs (2-hydroxybenzaldehyde-based bases 9–13 chromanone derivatives 17–19) as structurally relevant PPO h...

Photosystem II particles that retain the ability to evolve 0 2 have been used to examine acceptor and inhibitor sites in the photosynthetic electron transfer chain between Q and plastoquinone. Employing the water to dichlorobenzoquinone reaction to assay photosystem II activity, we have demonstrated that electron transport in thylakoids and particles is equally sensitive to inhibition by DCM U,...