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. 1971 May;47(5):676–681. doi: 10.1104/pp.47.5.676

Rhythmic Leaf Movements in Biloxi Soybean and Their Relation to Flowering 1

David E Brest a,2, Takashi Hoshizaki a, K C Hamner a
PMCID: PMC396749  PMID: 16657683

Abstract

The rhythmic leaf movement of Biloxi soybean (Glycine max) and its relationship to the rhythmic flowering response were studied. The movements of fully expanded trifoliate leaves were recorded with kymographs and time lapse photography in growth chambers. A comparison between the leaf movement rhythm and the rhythmic flowering response indicates that a high degree of similarity exists between the two rhythms. A definite relationship was shown to exist between the direction of the leaf movement and the photophil-photophobe phases of the rhythmic flowering response.

Short light perturbations may affect flowering by interacting directly with the flowering process while not affecting the basic endogenous rhythm. Long light perturbations may affect flowering by phase shifting the basic endogenous rhythm. Thus, light perturbations appear to have a dual effect on the flowering response of Biloxi soybean. The hypothesis that both the flowering rhythm and the leaf movement rhythm are coupled to the same basic oscillator is supported by the similarity of the phase shifts induced in the two rhythms by identical light perturbations.

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Selected References

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

  1. Brest D. E., Hoshizaki T., Hamner K. C. Circadian leaf movements in biloxi soybeans. Plant Physiol. 1970 May;45(5):647–648. doi: 10.1104/pp.45.5.647. [DOI] [PMC free article] [PubMed] [Google Scholar]
  2. Carpenter B. H., Hamner K. C. Effect of Light Quality on the Rhythmic Flowering Response of Biloxi Soybean. Plant Physiol. 1963 Nov;38(6):698–703. doi: 10.1104/pp.38.6.698. [DOI] [PMC free article] [PubMed] [Google Scholar]
  3. Coulter M. W., Hamner K. C. Photoperiodic Flowering Response of Biloxi Soybean in 72-Hour Cycles. Plant Physiol. 1964 Sep;39(5):848–856. doi: 10.1104/pp.39.5.848. [DOI] [PMC free article] [PubMed] [Google Scholar]
  4. DE COURSEY P. J. Daily light sensitivity rhythm in a rodent. Science. 1960 Jan 1;131(3392):33–35. doi: 10.1126/science.131.3392.33. [DOI] [PubMed] [Google Scholar]
  5. Hoshizaki T., Brest D. E., Hamner K. C. Xanthium leaf movements in light and dark. Plant Physiol. 1969 Jan;44(1):151–152. doi: 10.1104/pp.44.1.151. [DOI] [PMC free article] [PubMed] [Google Scholar]
  6. Shumate W. H., Reid H. B., Hamner K. C. Floral Inhibition of Biloxi Soybean During a 72-hour Cycle. Plant Physiol. 1967 Nov;42(11):1511–1518. doi: 10.1104/pp.42.11.1511. [DOI] [PMC free article] [PubMed] [Google Scholar]
  7. Takimoto A., Hamner K. C. Effect of Double Red Light Interruptions on the Photoperiodic Response of Pharbitis nil. Plant Physiol. 1965 Sep;40(5):855–858. doi: 10.1104/pp.40.5.855. [DOI] [PMC free article] [PubMed] [Google Scholar]
  8. Takimoto A., Hamner K. C. Effect of Temperature and Preconditioning on Photoperiodic Response of Pharbitis nil. Plant Physiol. 1964 Nov;39(6):1024–1030. doi: 10.1104/pp.39.6.1024. [DOI] [PMC free article] [PubMed] [Google Scholar]

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