Skip to main content
NCBI home page
Plant Physiology logoLink to Plant Physiology
. 1971 Sep;48(3):270–272. doi: 10.1104/pp.48.3.270

Glucose Metabolism of Embryos and Endosperms from Deteriorating Barley and Wheat Seeds

James D Anderson a, Aref A Abdul-Baki a
PMCID: PMC396847  PMID: 16657779

Abstract

Changes in glucose utilization into CO2 and ethanol-insoluble material were followed in whole seeds, embryos, and endosperms of wheat (Triticum aestivum L.) and barley (Hordeum vulgare L.) which had reached different levels of deterioration through accelerated aging treatments. Excised embryos from deteriorated wheat seeds had reduced respiration and glucose utilization into ethanol-insoluble material but not into CO2. These treatments had no effect on respiration of excised endosperms, although they reduced utilization of glucose into ethanol-insoluble material and CO2. Changes in metabolic activity of whole seeds in response to deterioration treatments are difficult to interpret because they represent the sum of the changes that take place in the embryos and endosperms. Changes in respiration and glucose utilization in these two tissues neither proceed at the same rate nor go in the same direction during deterioration.

Incubation of excised embryos and endosperms in glucose-14C under N2, as compared to air, affects the utilization but not the uptake of glucose. Embryos produce more 14CO2 and less labeled ethanol-insoluble material under N2 as compared to air. The responses of endosperms to N2 are of a much lower magnitude than those of embryos.

Full text

PDF
270

Selected References

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

  1. Abdul-Baki A. A. Metabolism of barley seed during early hours of germination. Plant Physiol. 1969 May;44(5):733–738. doi: 10.1104/pp.44.5.733. [DOI] [PMC free article] [PubMed] [Google Scholar]
  2. Abdul-Baki A., Baker J. E. Changes in Respiration and Cyanide Sensitivity of the Barley Floret during Development and Maturation. Plant Physiol. 1970 Jun;45(6):698–702. doi: 10.1104/pp.45.6.698. [DOI] [PMC free article] [PubMed] [Google Scholar]
  3. Anderson J. D., Baker J. E., Worthington E. K. Ultrastructural changes of embryos in wheat infected with storage fungi. Plant Physiol. 1970 Dec;46(6):857–859. doi: 10.1104/pp.46.6.857. [DOI] [PMC free article] [PubMed] [Google Scholar]
  4. Anderson J. D. Metabolic Changes in Partially Dormant Wheat Seeds during Storage. Plant Physiol. 1970 Oct;46(4):605–608. doi: 10.1104/pp.46.4.605. [DOI] [PMC free article] [PubMed] [Google Scholar]
  5. Chen S. S., Varner J. E. Metabolism of C-Maltose in Avena fatua Seeds During Germination. Plant Physiol. 1969 May;44(5):770–774. doi: 10.1104/pp.44.5.770. [DOI] [PMC free article] [PubMed] [Google Scholar]
  6. Chen S. S., Varner J. E. Respiration and Protein Synthesis in Dormant and After-ripened Seeds of Avena fatua. Plant Physiol. 1970 Jul;46(1):108–112. doi: 10.1104/pp.46.1.108. [DOI] [PMC free article] [PubMed] [Google Scholar]
  7. French R. C. Formation of Embryo Starch During Germination as an Indicator of Viability and Vigor in Heat-Damaged Barley. Plant Physiol. 1959 Sep;34(5):500–505. doi: 10.1104/pp.34.5.500. [DOI] [PMC free article] [PubMed] [Google Scholar]
  8. Marcus A., Feeley J., Volcani T. Protein Synthesis in Imbibed Seeds III. Kinetics of Amino Acid Incorporation Ribosome Activation, and Polysome Formation. Plant Physiol. 1966 Sep;41(7):1167–1172. doi: 10.1104/pp.41.7.1167. [DOI] [PMC free article] [PubMed] [Google Scholar]
  9. Throneberry G. O., Smith F. G. Relation of Respiratory and Enzymatic Activity to Corn Seed Viability. Plant Physiol. 1955 Jul;30(4):337–343. doi: 10.1104/pp.30.4.337. [DOI] [PMC free article] [PubMed] [Google Scholar]
  10. Woodstock L. W., Grabe D. F. Relationships Between Seed Respiration During Imbibition and Subsequent Seedling Growth in Zea mays L. Plant Physiol. 1967 Aug;42(8):1071–1076. doi: 10.1104/pp.42.8.1071. [DOI] [PMC free article] [PubMed] [Google Scholar]

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

RESOURCES