Aminophosphonate-induced changes of betacyanine and ionic efflux

Betacyanine and ionic leakage from red beet (Beta vulgaris ssp. L. rapacea) roots and lilac (Syringa vulgaris L,.) leaves under the influence of new a minophosphonates were studied by spectroscopic and conductometric methods. It was found that the leakage of dye or electrolytes depended both on the c oncentration of the: compounds used and their structural features. The resu lts compared to those obtained for the well known herbicide Buminafos((R)) (dibutyl 1-butylamino-1-cyclohexanephosphonate) enabled to conclude that so me of the compounds studied exhibited comparable or better activity than th is herbicide. That makes them potentially good herbicides. It is possible t hat the effects observed are the result of action on cell membranes of the tissues used. The possible role of the structural features of aminophosphon ates in this action is discussed.