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. 1979 May;63(5):882–886. doi: 10.1104/pp.63.5.882

Effect of Glyphosate on Auxin Transport in Corn and Cotton Tissues

J R Baur 1
PMCID: PMC542938  PMID: 16660831

Abstract

Basipetal auxin transport in 6-day-old dark-grown corn coleoptiles was severely inhibited by increasing levels of glyphosate applied during the transport period.

The velocity of basipetal transport of [14C]indoleacetic acid in hypocotyls from 7-day-old cotton seedlings was significantly reduced when sublethal doses of glyphosate [N-(phosphonomethyl)glycine] were applied to the cotyledonary leaves 24 hours before transport measurement. Simultaneous application of glyphosate and indoleacetic acid during transport measurement had no effect on basipetal transport in cotton hypocotyl sections.

Slowing of transport was inversely proportional to the dosage applied to both species.

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Selected References

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

  1. Abeles F. B. Effect of ethylene on auxin transport. Plant Physiol. 1966 Jun;41(6):946–948. doi: 10.1104/pp.41.6.946. [DOI] [PMC free article] [PubMed] [Google Scholar]
  2. Baur J. R., Bovey R. W. An economical system for liquid scintillation counting. Anal Biochem. 1974 Aug;60(2):568–572. doi: 10.1016/0003-2697(74)90268-1. [DOI] [PubMed] [Google Scholar]
  3. Baur J. R., Morgan P. W. Effects of picloram and ethylene on leaf movement in huisache and mesquite seedlings. Plant Physiol. 1969 Jun;44(6):831–838. doi: 10.1104/pp.44.6.831. [DOI] [PMC free article] [PubMed] [Google Scholar]
  4. Beyer E. M., Morgan P. W. Ethylene modification of an auxin pulse in cotton stem sections. Plant Physiol. 1969 Dec;44(12):1690–1694. doi: 10.1104/pp.44.12.1690. [DOI] [PMC free article] [PubMed] [Google Scholar]
  5. Burg S. P., Burg E. A. The interaction between auxin and ethylene and its role in plant growth. Proc Natl Acad Sci U S A. 1966 Feb;55(2):262–269. doi: 10.1073/pnas.55.2.262. [DOI] [PMC free article] [PubMed] [Google Scholar]
  6. Cooke A. R., Randall D. I. 2-Haloethanephosphonic acids as ethylene releasing agents for the induction of flowering in pineapples. Nature. 1968 Jun 8;218(5145):974–975. doi: 10.1038/218974a0. [DOI] [PubMed] [Google Scholar]
  7. Davenport T. L., Morgan P. W., Jordan W. R. Auxin Transport as Related to Leaf Abscission during Water Stress in Cotton. Plant Physiol. 1977 Apr;59(4):554–557. doi: 10.1104/pp.59.4.554. [DOI] [PMC free article] [PubMed] [Google Scholar]
  8. Goldsmith M. H. Movement of pulses of labeled auxin in corn coleoptiles. Plant Physiol. 1967 Feb;42(2):258–263. doi: 10.1104/pp.42.2.258. [DOI] [PMC free article] [PubMed] [Google Scholar]
  9. Morgan P. W., Baur J. R. Involvement of Ethylene in Picloram-induced Leaf Movement Response. Plant Physiol. 1970 Nov;46(5):655–659. doi: 10.1104/pp.46.5.655. [DOI] [PMC free article] [PubMed] [Google Scholar]
  10. Nitsch J. P., Nitsch C. Studies on the Growth of Coleoptile and First Internode Sections. A New, Sensitive, Straight-Growth Test for Auxins. Plant Physiol. 1956 Mar;31(2):94–111. doi: 10.1104/pp.31.2.94. [DOI] [PMC free article] [PubMed] [Google Scholar]

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