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Bown AW, Reeve DR, Crozier A. The effect of light on the gibberellin metabolism and growth of Phaseolus coccineus seedlings. Planta. 1975;126(1):83-91doi: 10.1007/BF00389362.
Bown, A. W., Reeve, D. R., & Crozier, A. (1975). The effect of light on the gibberellin metabolism and growth of Phaseolus coccineus seedlings. Planta, 126(1), 83-91. https://doi.org/10.1007/BF00389362
Bown, A W, et al. "The effect of light on the gibberellin metabolism and growth of Phaseolus coccineus seedlings." Planta vol. 126,1 (1975): 83-91. doi: https://doi.org/10.1007/BF00389362
Bown AW, Reeve DR, Crozier A. The effect of light on the gibberellin metabolism and growth of Phaseolus coccineus seedlings. Planta. 1975 Jan;126(1):83-91. doi: 10.1007/BF00389362. PMID: 24430090.
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Planta. 1975 Jan;126(1):83-91. doi: 10.1007/BF00389362.

The effect of light on the gibberellin metabolism and growth of Phaseolus coccineus seedlings.

Planta

A W Bown, D R Reeve, A Crozier

Affiliations

  1. Department of Botany, The University, G12 8QQ, Glasgow, U.K..

PMID: 24430090 DOI: 10.1007/BF00389362

Abstract

Light inhibits the rate of stem elongation of Phaseolus coccineus L. seedlings. Gibberellin A4 (GA4), an endogenous component of Phaseolus seedlings (Bowen et al., Phytochem. 12, 2935-2941, 1973) promotes stem growth in the light but not in darkness. Dark-grown seedlings contain larger GA pools than light-grown plants. Apically applied [(3)H]GA4 in etiolated bolised more extensively in the light. The slower rate of metabolism of [(3)H]GA4 in etiolated seedlings is not a consequence of isotopic dilution by the endogenous GA4 pool or a lack of penetration of the labelled material. While it can be concluded that the capacity of seedlings to metabolise [(3)H]GA4 is greater in the light than in darkness, it does not necessarily follow that there is a more rapid rate of turnover of endogenous GA4 in light-grown tissues. The results are discussed in relation to the involvement of GAs in the inhibitory effects of ligh on stem elongation.

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