Skip to main content
NCBI home page
Plant Physiology logoLink to Plant Physiology
. 1972 Aug;50(2):235–241. doi: 10.1104/pp.50.2.235

Phytochrome-controlled Nyctinasty in Albizzia julibrissin

IV. Auxin Effects on Leaflet Movement and K Flux 1

Ruth L Satter a, Philip Marinoff a, Arthur W Galston a
PMCID: PMC366116  PMID: 16658148

Abstract

Indole-3-acetic acid, α-naphthylacetic acid, and 2,4-dichlorophenoxyacetic acid (0.001 to 1.0 mm) inhibit the nyctinastic closure of excised Albizzia leaflet pairs; antiauxins and auxin analogs are ineffective, and the auxin effects seem not to be mediated by ethylene. Indoleacetic acid (0.001 to 0.1 mm) also promotes rhythmic opening in the dark, but is ineffective during that phase of rhythmic closure (“leaky phase”) which is insensitive to azide. At these concentrations, all of the indoleacetic acid effects are reversible upon transfer of the tissue to water and are linked to alteration of potassium flux in pulvinule motor cells.

A supraoptimal concentration of indoleacetic acid (1 mm) inhibits rhythmic opening as well as nyctinastic closure, although it has little or no effect on potassium flux in motor cells. These inhibitions cannot be completely reversed by transferring the leaflets to water.

Although indoleacetic acid (0.01 to 1.0 mm) inhibits leaflet opening and potassium flux in dorsal and ventral motor cells when leaflets are transferred from darkness to light, it has no effect during other portions of the light period, implying that changes in endogenous auxin do not control leaflet angle in the light. Neither does auxin seem to be involved in the phytochrome-regulated process, since it does not alter phytochrome control of leaflet movement or potassium flux. However, endogenous auxin probably plays an important role in controlling potassium flux into ventral motor cells during the opening phase of rhythmic leaflet movement in the dark.

Full text

PDF
235

Selected References

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

  1. Commoner B., Mazia D. THE MECHANISM OF AUXIN ACTION. Plant Physiol. 1942 Oct;17(4):682–685. doi: 10.1104/pp.17.4.682. [DOI] [PMC free article] [PubMed] [Google Scholar]
  2. Fischer R. A., Hsiao T. C. 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. doi: 10.1104/pp.43.12.1953. [DOI] [PMC free article] [PubMed] [Google Scholar]
  3. Furuya M., Pjon C. J., Fujii T., Ito M. Phytochrome action in Oryza sativa L. 3. The separation of photoperceptive site and growing zone in coleoptiles, and auxin transport as effector system. Dev Growth Differ. 1969 Jun;11(1):62–76. doi: 10.1111/j.1440-169x.1969.00062.x. [DOI] [PubMed] [Google Scholar]
  4. Furuya M., Torrey J. G. The Reversible Inhibition by Red and Far-Red Light of Auxin-Induced Lateral Root Initiation in Isolated Pea Roots. Plant Physiol. 1964 Nov;39(6):987–991. doi: 10.1104/pp.39.6.987. [DOI] [PMC free article] [PubMed] [Google Scholar]
  5. Morgan P. W., Baur J. R. Involvement of Ethylene in Picloram-induced Leaf Movement Response. Plant Physiol. 1970 Nov;46(5):655–659. doi: 10.1104/pp.46.5.655. [DOI] [PMC free article] [PubMed] [Google Scholar]
  6. Satter R. L., Galston A. W. Phytochrome-controlled Nyctinasty in Albizzia julibrissin: III. Interactions between an Endogenous Rhythm and Phytochrome in Control of Potassium Flux and Leaflet Movement. Plant Physiol. 1971 Dec;48(6):740–746. doi: 10.1104/pp.48.6.740. [DOI] [PMC free article] [PubMed] [Google Scholar]
  7. Satter R. L., Galston A. W. Potassium flux: a common feature of albizzia leaflet movement controlled by phytochrome or endogenous rhythm. Science. 1971 Oct 29;174(4008):518–520. doi: 10.1126/science.174.4008.518. [DOI] [PubMed] [Google Scholar]
  8. Sawhney B. L., Zelitch I. Direct determination of potassium ion accumulation in guard cells in relation to stomatal opening in light. Plant Physiol. 1969 Sep;44(9):1350–1354. doi: 10.1104/pp.44.9.1350. [DOI] [PMC free article] [PubMed] [Google Scholar]
  9. Tal M., Imber D. Abnormal Stomatal Behavior and Hormonal Imbalance in flacca, a Wilty Mutant of Tomato: II. Auxin- and Abscisic Acid-like Activity. Plant Physiol. 1970 Sep;46(3):373–376. doi: 10.1104/pp.46.3.373. [DOI] [PMC free article] [PubMed] [Google Scholar]
  10. Tanada T. A rapid photoreversible response of barley root tips in the presence of 3-indoleacetic Acid. Proc Natl Acad Sci U S A. 1968 Feb;59(2):376–380. doi: 10.1073/pnas.59.2.376. [DOI] [PMC free article] [PubMed] [Google Scholar]
  11. VANSTEVENINCK R. F. EFFECT OF INDOLYL-3-ACETIC ACID ON THE PERMEABILITY OF MEMBRANES IN STORAGE TISSUE. Nature. 1965 Jan 2;205:83–84. doi: 10.1038/205083a0. [DOI] [PubMed] [Google Scholar]
  12. Young R. E., Pratt H. K., Biale J. B. IDENTIFICATION OF ETHYLENE AS A VOLATILE PRODUCT OF THE FUNGUS PENICILLIUM DIGITATUM. Plant Physiol. 1951 Apr;26(2):304–310. doi: 10.1104/pp.26.2.304. [DOI] [PMC free article] [PubMed] [Google Scholar]

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

RESOURCES