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. 1977 Jul;60(1):95–97. doi: 10.1104/pp.60.1.95

Polarity of Indoleacetic Acid in young Coleus Stems 1

William P Jacobs a
PMCID: PMC542555  PMID: 16660052

Abstract

Young internodes of Coleus blumei Benth. have long been known for their sizable amount of acropetal indoleacetic acid movement. However, plants of the same clone, under improved growing conditions, now show almost absolute basipetal polarity of 14C-indoleacetic acid, as measured by liquid scintillation counting of 14C in the receiver cylinders of agar. The ratio of basipetal to acropetal movement is now as much as 85:1, instead of the 3:1 ratio found years ago under conditions providing slower growth.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. Jacobs W. P., McCready C. C., Osborne D. J. Transport of the Auxin 2,4-Dichlorophenoxyacetic Acid Through Absiccion Zones, Pulvini, and Petioles of Phaseolus vulgaris. Plant Physiol. 1966 Apr;41(4):725–730. doi: 10.1104/pp.41.4.725. [DOI] [PMC free article] [PubMed] [Google Scholar]
  2. Koevenig J. L., Jacobs W. P. Effect of light on basipetal movement of indoleacetic Acid in green stem sections of coleus. Plant Physiol. 1972 May;49(5):866–867. doi: 10.1104/pp.49.5.866. [DOI] [PMC free article] [PubMed] [Google Scholar]
  3. LEOPOLD A. C. THE POLARITY OF AUXIN TRANSPORT. Brookhaven Symp Biol. 1964 Mar;16:218–234. [PubMed] [Google Scholar]
  4. Naqvi S. M., Gordon S. A. Auxin Transport in Flowering and Vegetative Shoots of Coleus blumei Benth. Plant Physiol. 1965 Jan;40(1):116–118. doi: 10.1104/pp.40.1.116. [DOI] [PMC free article] [PubMed] [Google Scholar]
  5. Scott T. K., Jacobs W. P. Auxin in Coleus Stems: Limitation of Transport at Higher Concentrations. Science. 1963 Feb 15;139(3555):589–590. doi: 10.1126/science.139.3555.589. [DOI] [PubMed] [Google Scholar]
  6. Thompson N. P., Jacobs W. P. Polarity of IAA Effect on Sieve-Tube and Xylem Regeneration in Coleus and Tomato Stems. Plant Physiol. 1966 Apr;41(4):673–682. doi: 10.1104/pp.41.4.673. [DOI] [PMC free article] [PubMed] [Google Scholar]
  7. Veen H., Jacobs W. P. Transport and metabolism of indole-3-acetic Acid in coleus petiole segments of increasing age. Plant Physiol. 1969 Aug;44(8):1157–1162. doi: 10.1104/pp.44.8.1157. [DOI] [PMC free article] [PubMed] [Google Scholar]

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