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FACTORS AFFECTING ABSCISSION IN SPIRODELA OLIGORHIZA (LEMNACEAE)
Author(s) -
WITZTUM A.,
KEREN O.
Publication year - 1978
Publication title -
new phytologist
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.742
H-Index - 244
eISSN - 1469-8137
pISSN - 0028-646X
DOI - 10.1111/j.1469-8137.1978.tb02269.x
Subject(s) - abscission , ethylene , incubation , ultraviolet radiation , botany , biology , irradiation , ultraviolet , horticulture , chemistry , biochemistry , materials science , radiochemistry , physics , nuclear physics , catalysis , optoelectronics
SUMMARY Exposure of plants of Spirodela oligorhiza to ultraviolet light results in a high percentage of abscission of daughter colonies. The levels of endogenous ABA and ethylene released in irradiated plants were similar to those of the non‐irradiated controls. Pre‐incubation on IAA very significantly reduced UV‐induced abscission in spite of causing a large release of ethylene.