||Effect of Chlorine on Stress Ethylene Production.
Tingey, David T. ;
Pettit, Nelson ;
Bard, Lucia ;
||Corvallis Environmental Research Lab., OR. ;Northrop Services, Inc., Corvallis, OR.
Air pollution ;
Toxic tolerances ;
Plant tissues ;
Air pollution effects(Plants) ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
Several plant species were exposed to chlorine to determine whether stress ethylene was induced. Increasing the chlorine concentration or duration of exposure increased stress ethylene production until a maximum level was reached; either a higher concentration or longer duration decreased ethylene production below the maximum. The production stress of ethylene persisted less than 24 hr following exposure. Stress ethylene increased prior to visual injury. However low concentrations of chlorine that did not cause visual injury elicited stress ethylene formation, suggesting that stress ethylene production is a more sensitive measure of chlorine stress than foliar injury.