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KMID : 0368419910340040325
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Journal of Plant Biology
1991 Volume.34 No. 4 p.325 ~ p.330
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Specificity of Auxin Action on Ethylene Production in Corn Coleoptile Segments
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Yoon, In Sun/尹仁善
Kang, Bin G./姜濱求
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Abstract
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The ability of several auxin analogs to induce ethylene production was tested in the corn coleoptile. The synthetic auxins 1-naphthaleneacetic acid (1-NAA) and 2,4-dichlorophenoxyacetic acid (2,4-D) had strong stimulatory effects on ethylene induction surpassing that of IAA. Both 2-naphthalaneacetic acid (2-NAA) and 2,6-dichlorophenoxy acetic acid (2,6-D), structural analogs of these auxins, respectively, were found to be inactive. Treatment with NPA, a strong inhibitor of polar auxin transport, led to drastic increase in IAA-induced ethylene production while it has no effect on ethylene production induced by 1-NAA. A positive correlation existed between intracelluar auxin level and ethylene production.
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