Transport of abscisic acid

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概要

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• The transport of abscisic acid in cotyledonary petiole sections of cotton seedlings was investigated using (2-^<14>C)-ABA in a donor-receiver system. Using the intercept technique, a transport velocity of 22.4 mm/hr was determined. This velocity was found to be independent of the length of the petiole or of the concentration of ABA applied. In a 24-hr period 70% of the applied ABA moved through the tissue sections. No polarity was found in any of the studies. The capacity of the transport system decreased with increasing age of the tissue and with increasing time of pre-exposure to ABA. When metabolism of the tissue was restricted by cold temperature, low-O_2 tension or DNP treatment, transport was inhibited 80 to 98%. The distribution of ABA in the petiole during transport was also investigated. The results are discussed in relation to the well-studied transport of IAA and in relation to the physiological role of ABA.

• 日本植物生理学会の論文

著者

• Ingersoll R.

  Department Of Plant Sciences University Of California:(present)stanford Research Institute

• SMITH O.

  Department of Plant Sciences, University of California

• Smith O.

  Department Of Plant Sciences University Of California

関連論文

• Transport of abscisic acid
• Kinetin-induced tuberization of potato in vitro : on the mode of action of kinetin

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