Skip to main content
PMC home page
Plant Physiology logoLink to Plant Physiology
. 1968 Sep;43(9):1380–1388. doi: 10.1104/pp.43.9.1380

Translocation of Assimilates and Phosphate in Detached Bean Leaves

O A Leonard 1, R K Glenn 1
PMCID: PMC1087026  PMID: 16656924

Abstract

14C-assimilates were accumulated by the veins in the blades and transported basipetally into the petioles of detached leaves of Red Kidney bean (Phaseolus vulgaris L.). Neither process was greatly affected by mild moisture stress, age of fully enlarged leaves, or period in the dark prior to exposure to 14CO2. However, both vein loading and transport into petioles were greatly reduced by oxygen deficiency. The basipetal transport of 32PO4 also did not appear to be greatly reduced by 6 or 8 days of darkness prior to the application of phosphate-32P, followed by a transport period of 1 day in the dark. Endothall at 5 × 10−3 m was effective in stopping basipetal flow of 32P. It is considered that transport in leaves may be powered by forces in the plasmodesmata of the cell walls between the border parenchyma and phloem.

Full text

PDF
1386

Images in this article

1383Image
on p.1383
1384Image
on p.1384
1385Image
on p.1385
1386Image
on p.1386

Selected References

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

  1. Barrier G. E., Loomis W. E. Absorption and Translocation of 2,4-Dichlorophenoxyacetic Acid and P by Leaves. Plant Physiol. 1957 May;32(3):225–231. doi: 10.1104/pp.32.3.225. [DOI] [PMC free article] [PubMed] [Google Scholar]
  2. Esau K., Cronshaw J., Hoefert L. L. Relation of beet yellows virus to the phloem and to movement in the sieve tube. J Cell Biol. 1967 Jan;32(1):71–87. doi: 10.1083/jcb.32.1.71. [DOI] [PMC free article] [PubMed] [Google Scholar]
  3. Hartt C. E., Kortschak H. P. Sugar Gradients and Translocation of Sucrose in Detached Blades of Sugarcane. Plant Physiol. 1964 May;39(3):460–474. doi: 10.1104/pp.39.3.460. [DOI] [PMC free article] [PubMed] [Google Scholar]
  4. Hartt C. E., Kortschak H. P. Translocation of C in the sugarcane plant during the day and night. Plant Physiol. 1967 Jan;42(1):89–94. doi: 10.1104/pp.42.1.89. [DOI] [PMC free article] [PubMed] [Google Scholar]
  5. Hull R. J., Leonard O. A. Physiological Aspects of Parasitism in Mistletoes (Arceuthobium and Phoradendron). I. The Carbohydrate Nutrition of Mistletoe. Plant Physiol. 1964 Nov;39(6):996–1007. doi: 10.1104/pp.39.6.996. [DOI] [PMC free article] [PubMed] [Google Scholar]
  6. 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]
  7. Leonard O. A. TRANSLOCATION OF CARBOHYDRATES IN THE SUGAR BEET. Plant Physiol. 1939 Jan;14(1):55–74. doi: 10.1104/pp.14.1.55. [DOI] [PMC free article] [PubMed] [Google Scholar]
  8. Webster D. B., Currier H. H. Callose: Lateral Movement of Assimilates from Phloem. Science. 1965 Dec 17;150(3703):1610–1611. doi: 10.1126/science.150.3703.1610. [DOI] [PubMed] [Google Scholar]

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

RESOURCES