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. 1971 May;47(5):668–671. doi: 10.1104/pp.47.5.668

Red and Far Red Effects on Phenylalanine Ammonia-Lyase in Raphanus and Sinapis Seedlings Do Not Correlate with Phytochrome Spectrophotometry 1

Enrico Bellini a,2, William S Hillman a
PMCID: PMC396747  PMID: 16657681

Abstract

In seedlings of Raphanus sativus (radish) and Sinapis alba (mustard), irradiation for 6 hours with far red light significantly increases the extractable activity of phenylalanine ammonia-lyase by the end of the light period. A schedule of 10 minutes red light-110 minutes darkness-10 minutes red-110 minutes darkness-10 minutes red-110 minutes darkness has no effect as compared to dark controls. However, the red light program maintains a level of far red-absorbing phytochrome always measurable by in vivo spectrophotometry during the 6-hour experimental period. We conclude that the far red effect on this enzyme and for this specific material cannot be explained solely by formation and maintenance of far red-absorbing phytochrome.

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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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