Skip to main content
Plant Physiology logoLink to Plant Physiology
. 1972 Nov;50(5):599–602. doi: 10.1104/pp.50.5.599

A Possible Role of Divalent Manganese Ions in the Photoinduction of Phenylalanine Ammonia-Lyase

G Engelsma 1
PMCID: PMC366198  PMID: 16658225

Abstract

Divalent Mn ions cause an increase in the level of phenylalanine ammonia-lyase in gherkin hypocotyls. With the exception of Mg ions, which had a small effect, no other metal ion has so far been found which could replace the Mn ion in this respect. Invertase and peroxidase were not significantly affected by the Mn treatment. The increase in phenylalanine ammonialyase activity is explained by the removal, under the influence of Mn ions, of hydroxycinnamic acids, which cause repression of phenylalanine ammonia-lyase synthesis and/or inactivation of phenylalanine ammonia-lyase. Arguments are advanced for the hypothesis that photochemical transformations of Mn complexes are involved in the photoinduction of phenylalanine ammonia-lyase in dark-grown gherkin seedlings.

Full text

PDF
599

Selected References

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

  1. ENGELSMA G. DESTRUCTION OF HYDROXYCINNAMIC ACIDS COUPLED TO OXIDATION OF INDOLYL-3-ACETIC ACID BY PEROXIDASE AS A POSSIBLE MECHANISM FOR ADAPTIVE CHANGES OF INDOLYL-3-ACETIC ACID OXIDASE ACTIVITY. Nature. 1964 Apr 4;202:88–89. doi: 10.1038/202088a0. [DOI] [PubMed] [Google Scholar]
  2. LOWRY O. H., ROSEBROUGH N. J., FARR A. L., RANDALL R. J. Protein measurement with the Folin phenol reagent. J Biol Chem. 1951 Nov;193(1):265–275. [PubMed] [Google Scholar]
  3. Morgan P. W., Joham H. E., Amin J. V. Effect of manganese toxicity on the indoleacetic Acid oxidase system of cotton. Plant Physiol. 1966 Apr;41(4):718–724. doi: 10.1104/pp.41.4.718. [DOI] [PMC free article] [PubMed] [Google Scholar]
  4. Zucker M. Induction of Phenylalanine Deaminase by Light and its Relation to Chlorogenic Acid Synthesis in Potato Tuber Tissue. Plant Physiol. 1965 Sep;40(5):779–784. doi: 10.1104/pp.40.5.779. [DOI] [PMC free article] [PubMed] [Google Scholar]
  5. Zucker M. Rate of phenylalanine ammonia-lyase synthesis in darkness. Biochim Biophys Acta. 1970 May 12;208(2):331–333. doi: 10.1016/0304-4165(70)90253-9. [DOI] [PubMed] [Google Scholar]

Articles from Plant Physiology are provided here courtesy of Oxford University Press

RESOURCES