Patent ID: 8557733

Claim:
A method for stimulating regeneration, growth, and/or resistance to stress, or increasing the lifetime, of a plant, or cutting thereof, or its flower or fruit, comprising administering to the plant or portion thereof an effective amount of the compound of structure I: or a solvate or isomer thereof, or an agrochemically or physiologically acceptable salt thereof, wherein: A is an effector—antioxidant of structure: or reduced form thereof, wherein: m is an integer from 1 to 3; each Y is lower alkyl or lower alkoxy; or two adjacent Y groups, together with carbon atoms to which they are attached, form a following structure: or reduced form thereof, wherein R1 and R2 may be the same or different and are each independently lower alkyl or lower alkoxy; L is a linker group, comprising: a) a straight or branched hydrocarbon chain which can be optionally substituted by one or more substituents and optionally contains one or more double or triple bonds; or b) a natural isoprene chain; n is integer from 1 to 20; B is a targeting group, comprising: Sk + Z − : wherein: Sk is a triphenylphosphonium cation; and Z is an acceptable anion; provided that is not ubiquinone or tocopherol or mimetic of superoxide dismutase or ebselen; while L is divanlent decyl or divalent pentyl or divalent propyl radical; and an agrochemically or physiologically acceptable carrier thereof.