The effect of abscisic acid on the metabolism of kinetin in detached leaves of Rumex pulcher

A. Back; S. Bittner; A. E. Richmond

doi:10.1093/jxb/23.3.744

The effect of abscisic acid on the metabolism of kinetin in detached leaves of Rumex pulcher

A. Back, S. Bittner, A. E. Richmond

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Abstract

The effect of abscisic acid (ABA) and of gibberellic acid (GA₂) on the metabolism of kinetin in detached leaves was investigated. Kinetin labelled in either the purine ring or the N-6 substituted side chain was fed into leaves of Rumex pulcher. The leaves were extracted 4 or 20 h later and the extract chromatographed on paper which was subsequently scanned for radioactivity. Four major radioactive peaks were revealed. Two peaks were tentatively identified, one kinetin and its riboside, and the other adenine. ABA effected a significant decrease in the transformation of kinetin to adenine while GA₃ had no consistent effect. The possible meaning of this finding is discussed.

Original language	English
Pages (from-to)	744-750
Number of pages	7
Journal	Journal of Experimental Botany
Volume	23
Issue number	3
DOIs	https://doi.org/10.1093/jxb/23.3.744
State	Published - 1 Aug 1972
Externally published	Yes

ASJC Scopus subject areas

Physiology
Plant Science

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The effect of abscisic acid on the metabolism of kinetin in detached leaves of Rumex pulcher

Abstract

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