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. 1973 Oct;52(4):309–311. doi: 10.1104/pp.52.4.309

Phytochrome Destruction

An Apparent Requirement for Protein Synthesis in the Induction of the Destruction Mechanism 1

George H Kidd a,2, Lee H Pratt a
PMCID: PMC366493  PMID: 16658553

Abstract

Examination of the phytochrome destruction reaction as a function of age in etiolated oat (Avena sativa L. cv. Garry) seedlings demonstrates that following illumination of 3-day-old shoots there is a lag, not observed in 4- or 5-day-old oats, prior to the onset of destruction. This light-mediated induction of the phytochrome destruction mechanism in 3-day-old shoots is inhibited by chloramphenicol, actinomycin D, and puromycin suggesting that protein synthesis is required. In 4-day-old shoots, actinomycin D and puromycin do not alter the kinetics of destruction while chloramphenicol partially inhibits the process. Thus, the inhibitors have a specific effect on the induction of the destruction mechanism but not its subsequent operation.

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Selected References

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

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