Access

You are not currently logged in.

Access your personal account or get JSTOR access through your library or other institution:

login

Log in to your personal account or through your institution.

If You Use a Screen Reader

This content is available through Read Online (Free) program, which relies on page scans. Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.

H⁺ Fluxes in Excised Samanea Motor Tissue: II. Rhythmic Properties

Ana Iglesias and Ruth L. Satter
Plant Physiology
Vol. 72, No. 2 (Jun., 1983), pp. 570-572
Stable URL: http://www.jstor.org/stable/4268070
Page Count: 3
  • Read Online (Free)
  • Subscribe ($19.50)
  • Cite this Item
Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
H⁺ Fluxes in Excised Samanea Motor Tissue: II. Rhythmic Properties
Preview not available

Abstract

Homogeneous groups of cells were excised at regular intervals from opposing (extensor and flexor) motor tissue of Samanea saman (Jacq) Merrill maintained in white light for 34 hours. H+ fluxes between the tissue and bathing solution were then monitored during 30 minutes of darkness. Flux rates in both cell types vary with circadian rhythms. Flexor cells secrete H+ to the medium during two-thirds of the circadian cycle and take up H+ during the remainder of the cycle, while extensor cells take up H+ from the medium during the entire cycle.

Page Thumbnails

  • Thumbnail: Page 
570
    570
  • Thumbnail: Page 
571
    571
  • Thumbnail: Page 
572
    572