Skip to main content
PMC home page
Plant Physiology logoLink to Plant Physiology
. 1975 Apr;55(4):626–631. doi: 10.1104/pp.55.4.626

Iron Deficiency and the Structure and Physiology of Maize Chloroplasts 1

C Ralph Stocking a
PMCID: PMC541676  PMID: 16659137

Abstract

The ultrastructure of mesophyll chloroplasts of maize (Zea mays L.) was more severely affected by iron deficiency that induced mild chlorosis than was the ultrastructure of bundle sheath plastids. Ferredoxin and ribulose diphosphate carboxylase levels were severely decreased by iron deficiency. Malic enzyme was less affected, and phosphoenolpyruvate carboxylase activity remained high even under severe iron deficiency. Iron deficient leaves fixed carbon into malic and aspartic acids but the rate of entrance of carbon into the sugar phosphates and sucrose was greatly reduced compared to the control. Chlorophyll a/b ratios ranged from low values of less than 2 in severely iron deficient leaves to high values exceeding 4 in leaves showing little iron deficiency.

Full text

PDF
629

Images in this article

627Image
on p.627
630Image
on p.630

Selected References

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

  1. Arnon D. I. COPPER ENZYMES IN ISOLATED CHLOROPLASTS. POLYPHENOLOXIDASE IN BETA VULGARIS. Plant Physiol. 1949 Jan;24(1):1–15. doi: 10.1104/pp.24.1.1. [DOI] [PMC free article] [PubMed] [Google Scholar]
  2. BASSHAM J. A., KIRK M. Dynamics of the photosynthesis of carbon compounds. I. Carboxylation reactions. Biochim Biophys Acta. 1960 Oct 7;43:447–464. doi: 10.1016/0006-3002(60)90468-6. [DOI] [PubMed] [Google Scholar]
  3. Baszynski T., Brand J., Barr R., Krogmann D. W., Crane F. L. Some Biochemical Characteristics of Chloroplasts from Mineral-deficient Maize. Plant Physiol. 1972 Sep;50(3):410–411. doi: 10.1104/pp.50.3.410. [DOI] [PMC free article] [PubMed] [Google Scholar]
  4. Crawford C. G., Jensen R. G. Isolation and Partial Characterization of Ferredoxin from Zea mays. Plant Physiol. 1971 Mar;47(3):447–449. doi: 10.1104/pp.47.3.447. [DOI] [PMC free article] [PubMed] [Google Scholar]
  5. Ecklund P. R., Moore T. C. Correlations of Growth Rate and De-etiolation with Rate of Ent-Kaurene Biosynthesis in Pea (Pisum sativum L.). Plant Physiol. 1974 Jan;53(1):5–10. doi: 10.1104/pp.53.1.5. [DOI] [PMC free article] [PubMed] [Google Scholar]
  6. Hall J. D., Barr R., Al-Abbas A. H., Crane F. L. The Ultrastructure of Chloroplasts in Mineral-deficient Maize Leaves. Plant Physiol. 1972 Sep;50(3):404–409. doi: 10.1104/pp.50.3.404. [DOI] [PMC free article] [PubMed] [Google Scholar]
  7. Kortschak H. P., Hartt C. E., Burr G. O. Carbon Dioxide Fixation in Sugarcane Leaves. Plant Physiol. 1965 Mar;40(2):209–213. doi: 10.1104/pp.40.2.209. [DOI] [PMC free article] [PubMed] [Google Scholar]
  8. Marsh H. V., Evans H. J., Matrone G. Investigations of the Role of Iron in Chlorophyll Metabolism I. Effect of Iron Deficiency on Chlorophyll and Heme Content and on the Activities of Certain Enzymes in Leaves. Plant Physiol. 1963 Nov;38(6):632–638. doi: 10.1104/pp.38.6.632. [DOI] [PMC free article] [PubMed] [Google Scholar]
  9. Osmond C. B. Metabolite transport in C4 photosynthesis. Aust J Biol Sci. 1971 Feb;24(1):159–163. doi: 10.1071/bi9710159. [DOI] [PubMed] [Google Scholar]

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

RESOURCES