Abstract:

With isolated epidermal strips of Vicia faba, the intensity of potassium-staining in the guard cells of stomata was calibrated against the uptake of radioactively labeled potassium. By using this calibration, the quantity of potassium that had accumulated in the guard cells, as stomata of leaves of Vicia open in the light, was estimated. Results support the hypothesis that in leaves, as well as in isolated epidermal strips, potassium and an accompanying anion comprise the major, osmotically active solutes in the guard cells of open stomata.

Open in

PUBMED | PMC | Google Scholar | Wikipedia

Relations:

Content

Citations

(18)

References

(4)

Affiliates

(1)

Role of Potassium in Stomatal Opening in the Leaf of <em>Vicia faba</em>

R Fischer

Abstract

With isolated epidermal strips of Vicia faba, the intensity of potassium-staining in the guard cells of stomata was calibrated against the uptake of radioactively labeled potassium. By using this calibration, the quantity of potassium that had accumulated in the guard cells, as stomata of leaves of Vicia open in the light, was estimated. Results support the hypothesis that in leaves, as well as in isolated epidermal strips, potassium and an accompanying anion comprise the major, osmotically active solutes in the guard cells of open stomata.

Full text

Full text is available as a scanned copy of the original print version. Get a printable copy (PDF file) of the complete article (928K), or click on a page image below to browse page by page. Links to PubMed are also available for Selected References.

Images in this article

Image
on p.556

Click on the image to see a larger version.

Selected References

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

Fischer RA. Stomatal Opening in Isolated Epidermal Strips of Vicia faba. I. Response to Light and to CO(2)-free Air. Plant Physiol. 1968 Dec;43(12):1947–1952.[PMC free article] [PubMed] [Google Scholar]
Fischer RA, Hsiao TC. Stomatal Opening in Isolated Epidermal Strips of Vicia faba. II. Responses to KCl Concentration and the Role of Potassium Absorption. Plant Physiol. 1968 Dec;43(12):1953–1958.[PMC free article] [PubMed] [Google Scholar]
Macallum AB. On the distribution of potassium in animal and vegetable cells. J Physiol. 1905 Feb 28;32(2):95–198.3.[PMC free article] [PubMed] [Google Scholar]
Tolbert NE, Oeser A, Yamazaki RK, Hageman RH, Kisaki T. A survey of plants for leaf peroxisomes. Plant Physiol. 1969 Jan;44(1):135–147.[PMC free article] [PubMed] [Google Scholar]

^{Research School of Biological Sciences, Australian National University, Canberra, A. C. T. 2601, Australia}

^{Present address: International Maize and Wheat Improvement Center (CIMMYT), Londres 40, Mexico City, Mexico, 6, D. F.}

Copyright notice

Abstract

With isolated epidermal strips of Vicia faba, the intensity of potassium-staining in the guard cells of stomata was calibrated against the uptake of radioactively labeled potassium. By using this calibration, the quantity of potassium that had accumulated in the guard cells, as stomata of leaves of Vicia open in the light, was estimated. Results support the hypothesis that in leaves, as well as in isolated epidermal strips, potassium and an accompanying anion comprise the major, osmotically active solutes in the guard cells of open stomata.

Collaboration tool especially designed for Life Science professionals.Drag-and-drop any entity to your messages.

Learn More