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Energy charge during aerobic and anaerobic imbibition of Kalanchoë blossfeldiana seeds
Author(s) -
DEDONDER A.,
RETHY R.,
FREDERICQ H.,
GREEF J. A.
Publication year - 1989
Publication title -
plant, cell and environment
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.646
H-Index - 200
eISSN - 1365-3040
pISSN - 0140-7791
DOI - 10.1111/j.1365-3040.1989.tb01647.x
Subject(s) - imbibition , anaerobic exercise , dormancy , germination , energy charge , chemistry , fermentation , botany , horticulture , food science , biology , biochemistry , enzyme , adenylate kinase , physiology
Adenosine phosphate levels were measured in Kalanchoë blossfeldiana cv. feuerblüte seeds during dark imbibition in aerobic and anaerobic conditions. A correlation between the depth of primary dormancy (light requirement) and the increase of ATP‐content during the first hours of aerobic imbibition was found, but the rise of energy charge from about 0.2 in dry seeds to 0.8 after 18 h is not related to the breaking of dormancy and consequently to germination. In an anaerobic environment, the increase in ATP‐content is dramatically lowered and the energy charge value stabilizes at about 0.4, most probably as the result of fermentation activity.