Stimulation of ethylene production in the mung bean hypocotyls by cupric ion, calcium ion, and kinetin |
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| Authors: | Lau O L Yang S F |
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| Affiliation: | Department of Vegetable Crops, University of California, Davis, California 95616. |
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| Abstract: | The synergistic stimulation of ethylene production by kinetin and Ca2+ in hypocotyl segments of mung bean (Phaseolus aureus Roxb.) seedling was further studied. The requirement for Ca2+ in this system was specific. Except for Sr2+, which mimicked the effect of Ca2+, none of the following divalent cations, including Ba2+, Mg6+, Cu2+, Hg2+, Co2+, Ni2+, Sn2+, and Zn2+, showed synergism with kinetin on ethylene production. Fe2+, however, showed a slight synergism with kinetin. Some of them (Hg2+, Co2+, and Ni2+) had a strong inhibitory effect, while others (Zn2+, Mg2+, Sn2+, and Ba2+) had a slight or no inhibitory effect on ethylene production in the absence or presence of kinetin. |
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