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Ethylene Requirement for Germination of Partly After‐ripened Apple Embryo
Author(s) -
KEPCZYNSKI JAN,
RUDNICKI RYSZARD M.,
KHAN ANWAR A.
Publication year - 1977
Publication title -
physiologia plantarum
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.351
H-Index - 146
eISSN - 1399-3054
pISSN - 0031-9317
DOI - 10.1111/j.1399-3054.1977.tb04075.x
Subject(s) - ethylene , germination , abscisic acid , dormancy , malus , embryo , biology , ripening , horticulture , chemistry , botany , biochemistry , microbiology and biotechnology , gene , catalysis
The effect and involvement of ethylene in germination of partially after‐ripened apple ( Malus domestica Borkh. cv. Antonovka) embryos were studied. The requirement of ethylene for germination was shown by the use of a rhizobitoxine analog and 8‐hydroxy‐quinoline sulphate which are inhibitors of ethylene biosynthesis, and by mercuric perchlorate, a trap for endogenously produced ethylene. Excised apple embryos were found to produce progressively greater amounts of ethylene with increasing periods of after‐ripening. Inhibition of germination by rhizobitoxine analog or abscisic acid was accompanied by inhibition of ethylene formation in embryos. Thus ethylene appears to be required for the release of dormancy and germination of apple embryos.