Physiological Effects of Gibberellic Acid. IX. Recovery of Gibberellic Acid Following Incubation with Endosperm
Author(s) -
L. G. Paleg,
B. G. Coombe
Publication year - 1967
Publication title -
plant physiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.554
H-Index - 312
eISSN - 1532-2548
pISSN - 0032-0889
DOI - 10.1104/pp.42.3.445
Subject(s) - endosperm , gibberellic acid , incubation , gibberellin , biology , incubation period , botany , chemistry , biochemistry , germination
To determine the fate of gibberellic acid (GA(3)), solutions were incubated for 24 hours with or without barley endosperm and were subsequently applied to dwarf maize seedlings. Hormone activity appeared to increase as a result of incubation with endosperm. This apparent increase in GA(3) concentration was probably due to a synergistic interaction between GA(3) and endosperm constituents, particularly carbohydrate, released during the incubation period. It is concluded that relatively little hormone is inactivated during the initiation of endosperm mobilization.
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