Calcium is involved in the abscisic acid-induced ascorbate peroxidase, superoxide dismutase and chilling resistance in Stylosanthes guianensis

The objective of this work was to test whether Ca2+, a second messenger in stress response, is involved in ABA-induced antioxidant enzyme activities in Stylosanthes guianensis. Plants were sprayed with abscisic acid (ABA), calcium channel blocker, LaCl3, calcium chelator, ethylene glycol-bis(β-amino ethyl ether)-N,N,N', N'-tetraacetid acid (EGTA), and ABA in combination with LaCl3 or EGTA. Their effects on superoxide dismutase (SOD) and...