Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 1976 Feb;57(2):286-9.
doi: 10.1104/pp.57.2.286.

Stem sensitivity and ethylene involvement in phototropism of mung bean

T Brennan  1 , J E Gunckel
Affiliations

Stem sensitivity and ethylene involvement in phototropism of mung bean

T Brennan et al. Plant Physiol. 1976 Feb.

Abstract

A system is described for the examination of phototropism in the epicotyl of a dicot seedling, mung bean (Phaseolus aureus Roxb.), under conditions approximating nature, including the use of intact, nonetiolated plants exposed to elevated, continuous, white, unilateral light. It is found that in this system perception of the phototropic stimulus by the leaves alone cannot account for the curvature, and that exposure of the stem is also necessary. The phototropic response was found to be strongly altered in nonintact plants. Hypobaric treatment indicates that ethylene may participate in phototropism, possibly by acting as an inhibitor of auxin transport.

PubMed Disclaimer

References

    1. Plant Physiol. 1966 May;41(5):847-51 - PubMed
    1. Plant Physiol. 1967 Jan;42(1):138-43 - PubMed
    1. Plant Physiol. 1974 Sep;54(3):222-5 - PubMed
    1. Proc Natl Acad Sci U S A. 1973 Feb;70(2):591-7 - PubMed
    1. Plant Physiol. 1966 Jan;41(1):45-52 - PubMed

LinkOut - more resources