Abstract：
:C2H4 production of the embryonic axes and cotyledons excised from dormant and non-dormant cocklebur (Xanthium pennsylvanicum Wallr.) seeds was examined in relation to ambient O2 tensions. There were two kinds of C2H4-producing systems, quasi-anaerobic and aerobic, in both organs. Regardless of the organ, the former activity was high in the dormant state and, particularly in axes, declined with after-ripening. On the other hand, the latter activity was almost insignificant in the dormant state, but increased with release from dormancy and the non-dormant axes exclusively produced C2H4 through this system. In the cotyledons, however, the former was still predominant even after they were fully after-ripened. Thus, the C2H4-producing systems were different in the seed organ and in the dormancy state.
journal_name
Plantajournal_title
Plantaauthors
Esashi Y,Ohhara Y,Kotaki K,Watanabe Kdoi
10.1007/BF00390908subject
Has Abstractpub_date
1976-01-01 00:00:00pages
23-6issue
1eissn
0032-0935issn
1432-2048journal_volume
129pub_type
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