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Transport von Abscisinsäure in Explantaten, Blattstiel- und Internodialsegmenten von Coleus rheneltianus

Transport of abscisic acid in explants, petiole and internode segments of Coleus rheneltianus

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Summary

Synthetic or natural abscisic acid isolated from tomato fruits is transported in explants, petiole and internode segments from Coleus rheneltianus.

Transport in segments and explants from younger parts (2nd node or internode) is mainly basipetal. In older parts (segments and explants from 5th nodes or internodes) translocation in acropetal direction is nearly of the same order of magnitude as in basipetal direction.

The velocity of transport of synthetic absisic acid was investigated in petiole segments from 5th nodes and was found to be approximately 24 to 36 mm/h.

Zusammenfassung

Natürliche und synthetische Abscisinsäure wird in Explantaten, Blattstiel- und Internodialsegmenten von Coleus rheneltianus transportiert.

In jüngeren Pflanzenteilen erfolgt der Transport vorwiegend oder ausschließlich basipetal, während in älteren Organteilen auch eine erhebliche akropetale Wanderung stattfindet. Eine Bestimmung der Transportgeschwindigkeit ergab für synthetische Abscisinsäure in älteren Blattstielsegmenten ungefähr 24–36 mm/h.

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Authors and Affiliations

  1. Staatsinstitut für Allgemeine Botanik, Hamburg

    Karl Dörffling & Michael Böttger

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  1. Karl Dörffling
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  2. Michael Böttger
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Herrn Prof. Dr. Hans Söding in Dankbarkeit zum 70. Geburtstag gewidmet.

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Dörffling, K., Böttger, M. Transport von Abscisinsäure in Explantaten, Blattstiel- und Internodialsegmenten von Coleus rheneltianus . Planta 80, 299–308 (1968). https://doi.org/10.1007/BF00392399

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  • DOI: https://doi.org/10.1007/BF00392399

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