The Role of C2H4 in anaerobic induction of cocklebur seed germination |
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Authors: | Esashi Y; Okazaki M; Watanabe K |
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Institution: | Department of Biological Science, Tohoku University Kawauchi, Sendai 980, Japan |
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Abstract: | Non-dormant small cocklebur seeds (Xanthium pennsylvanicum Wallr.)are potentiated to germinate, if they are subjected to anaerobiccondition for certain time periods after being sufficientlypre-soaked under aerobic conditions. This is termed "anaerobicinduction" of seed germination. Such induction was slightlyinhibited by CO2 applied during anaerobiosis, but markedly promotedby C2H4 Thus, C2H4 can exert its action even in anaerobiosis,but does not enhance the fermentative CO2 evolution. No actualanaerobic induction occurred when over 1? O2 was present, evenif C2H4 had been applied. Therefore, anaerobic induction seemsto be due to a concerted action of some anaerobically proceedingevents and the anaerobically produced C2H4. (Received May 31, 1976; ) |
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