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Avalos A, Vicente C. Equivalence between Pfr and Cyclic AMP in the Induction of d-Usnic Acid Dehydrogenase in the Lichen Evernia prunastri. Plant Physiol. 1987;84(3):803-7doi: 10.1104/pp.84.3.803.
Avalos, A., & Vicente, C. (1987). Equivalence between Pfr and Cyclic AMP in the Induction of d-Usnic Acid Dehydrogenase in the Lichen Evernia prunastri. Plant physiology, 84(3), 803-7. https://doi.org/10.1104/pp.84.3.803
Avalos, A, and Vicente, C. "Equivalence between Pfr and Cyclic AMP in the Induction of d-Usnic Acid Dehydrogenase in the Lichen Evernia prunastri." Plant physiology vol. 84,3 (1987): 803-7. doi: https://doi.org/10.1104/pp.84.3.803
Avalos A, Vicente C. Equivalence between Pfr and Cyclic AMP in the Induction of d-Usnic Acid Dehydrogenase in the Lichen Evernia prunastri. Plant Physiol. 1987 Jul;84(3):803-7. doi: 10.1104/pp.84.3.803. PMID: 16665525; PMCID: PMC1056673.
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Plant Physiol. 1987 Jul;84(3):803-7. doi: 10.1104/pp.84.3.803.

Equivalence between Pfr and Cyclic AMP in the Induction of d-Usnic Acid Dehydrogenase in the Lichen Evernia prunastri.

Plant physiology

A Avalos, C Vicente

Affiliations

  1. Laboratory of Plant Physiology, The Lichen Team, Faculty of Biology, Complutense University, 28040 Madrid, Spain.

PMID: 16665525 PMCID: PMC1056673 DOI: 10.1104/pp.84.3.803

Abstract

d-Usnic acid dehydrogenase is induced in Evernia prunastri thalli by a supply of exogenous d-usnic acid in light. This effect is enhanced by red light pulses through a two step way: a very rapid increase of activity after the first 10 minutes of red light, which is not reversed by far-red light, and a slow enhancement following successive red light pulses at the beginning of each hour of incubation. The last response is completely reversed by far-red following red light. Although induction of the enzyme is not achieved in the dark, 0.1 and 0.5 millimolar cyclic AMP, or 0.1 millimolar dibutyryl cyclic AMP substitutes light action and, then, the enzyme is produced. In addition, phytochrome-far red-absorbing form-increases the amount of endogenously produced cyclic AMP and this effect is shown to be photoreversible when ethylenediaminetetraacetic acid is inhibiting adenylate cyclase.

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