Skip to main content
PMC home page
Biochemical Journal logoLink to Biochemical Journal
. 1968 Jul;108(3):475–482. doi: 10.1042/bj1080475

The pattern and control of isoprenoid quinone and tocopherol metabolism in the germinating grain of wheat (Triticum vulgare)

G S Hall 1,*, D L Laidman 1
PMCID: PMC1198833  PMID: 5667257

Abstract

1. The syntheses of ubiquinone-9 and plastoquinone-9 were used as parameters respectively of mitochondrial and proplastid development in the germinating wheat grain. 2. The changes in the amounts of the tocopherols were also studied and the possible biological significance of these changes is discussed. During germination, the dimethyl tocopherols of the resting grain are probably not utilized for the synthesis of α-tocopherol. 3. It was demonstrated that ubiquinone synthesis, and hence probably mitochondrial development, in the aleurone cells during germination, is independent of control by gibberellic acid from the embryo. 4. The influence of light on the syntheses of the isoprenoid quinones in the etiolated wheat shoot was investigated. In particular, illumination did not stimulate the synthesis of either α-tocopherol or α-tocopherolquinone.

Full text

PDF
482

Selected References

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

  1. Chandra G. R., Varner J. E. Gibberellic acid-controlled metabolism of RNA in aleurone cells of barley. Biochim Biophys Acta. 1965 Dec 9;108(4):583–592. doi: 10.1016/0005-2787(65)90055-9. [DOI] [PubMed] [Google Scholar]
  2. DILLEY R. A., CRANE F. L. A specific assay for tocopherols in plant tissue. Anal Biochem. 1963 Jun;5:531–541. doi: 10.1016/0003-2697(63)90073-3. [DOI] [PubMed] [Google Scholar]
  3. Gaunt J. K., Stowe B. B. Uptake and metabolism of vitamins e and k by pea stem sections. Plant Physiol. 1967 Jun;42(6):859–862. doi: 10.1104/pp.42.6.859. [DOI] [PMC free article] [PubMed] [Google Scholar]
  4. Hall G. S., Laidman D. L. The determination of tocopherols and isoprenoid quinones in the grain and seedlings of wheat (Triticum vulgare). Biochem J. 1968 Jul;108(3):465–473. doi: 10.1042/bj1080465. [DOI] [PMC free article] [PubMed] [Google Scholar]
  5. Ingle J., Hageman R. H. Metabolic Changes Associated with the Germination of Corn. III. Effects of Gibberellic Acid on Endosperm Metabolism. Plant Physiol. 1965 Jul;40(4):672–675. doi: 10.1104/pp.40.4.672. [DOI] [PMC free article] [PubMed] [Google Scholar]
  6. MARCUS A., FEELEY J. PROTEIN SYNTHESIS IN IMBIBED SEEDS. II. POLYSOME FORMATION DURING IMBIBITION. J Biol Chem. 1965 Apr;240:1675–1680. [PubMed] [Google Scholar]
  7. Morton R. K., Raison J. K. The separate incorporation of amino acids into storage and soluble proteins catalysed by two independent systems isolated from developing wheat endosperm. Biochem J. 1964 Jun;91(3):528–539. doi: 10.1042/bj0910528. [DOI] [PMC free article] [PubMed] [Google Scholar]
  8. Paleg L. G. Physiological Effects of Gibberellic Acid: I. On Carbohydrate Metabolism and Amylase Activity of Barley Endosperm. Plant Physiol. 1960 May;35(3):293–299. doi: 10.1104/pp.35.3.293. [DOI] [PMC free article] [PubMed] [Google Scholar]
  9. Paleg L. G. Physiological effects of gibberellic acid. III. Observations on its mode of action on barley endosperm. Plant Physiol. 1961 Nov;36(6):829–837. doi: 10.1104/pp.36.6.829. [DOI] [PMC free article] [PubMed] [Google Scholar]
  10. Paleg L., Hyde B. Physiological Effects of Gibberellic Acid. VII. Electron Microscopy of Barley Aleurone Cells. Plant Physiol. 1964 Jul;39(4):673–680. doi: 10.1104/pp.39.4.673. [DOI] [PMC free article] [PubMed] [Google Scholar]
  11. Parisi B., Ciferri O. Protein synthesis by cell-free extracts from castor bean seedlings. I. Preparation and characteristics of the amino acid incorporating system. Biochemistry. 1966 May;5(5):1638–1645. doi: 10.1021/bi00869a027. [DOI] [PubMed] [Google Scholar]
  12. Scott T. W., Ward P. F., Dawson R. M. The formation and metabolism of phenyl-substituted fatty acids in the ruminant. Biochem J. 1964 Jan;90(1):12–24. doi: 10.1042/bj0900012. [DOI] [PMC free article] [PubMed] [Google Scholar]
  13. Treharne K. J., Mercer E. I., Goodwin T. W. Incorporation of [14C] carbon dioxide and [2-14C] mevalonic acid into terpenoids of higher plants during chloroplast development. Biochem J. 1966 Apr;99(1):239–245. doi: 10.1042/bj0990239. [DOI] [PMC free article] [PubMed] [Google Scholar]
  14. Varner J. E., Chandra G. R. HORMONAL CONTROL OF ENZYME SYNTHESIS IN BARLEY ENDOSPERM. Proc Natl Acad Sci U S A. 1964 Jul;52(1):100–106. doi: 10.1073/pnas.52.1.100. [DOI] [PMC free article] [PubMed] [Google Scholar]

Articles from Biochemical Journal are provided here courtesy of The Biochemical Society

RESOURCES