Abstract
Under continuous far red light, anthocyanin synthesis in young, dark-grown cabbage seedlings (Brassica oleracea cv. Red Acre) is irradiance-dependent and fails to follow the reciprocity (irradiance × time = constant) relationships. Under intermittent far red treatments extended over a prolonged period of time, anthocyanin synthesis becomes dose dependent, and reciprocity relationships are valid. Intermittent far red treatments with short dark intervals between successive irradiations are as effective as continuous treatments, if the total radiation doses applied with the two types of treatments are equal and are applied over equally long periods of time. The high effectiveness of inter-mittent treatments, the dose dependence, and the validity of the reciprocity relationships suggest that cycling between red-absorbing form of phytochrome and far red-absorbing form of phytochrome and the formation of electronically excited far red-absorbing form of phytochrome, or the involvement of a second photoreactive system, besides phytochrome, may play only a minor role in high irradiance reaction anthocyanin synthesis brought about by prolonged exposures to far red irradiation.
Full text
PDF




Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Boisard J., Marmé D., Briggs W. R. In Vivo Properties of Membrane-bound Phytochrome. Plant Physiol. 1974 Sep;54(3):272–276. doi: 10.1104/pp.54.3.272. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Borthwick H. A., Hendricks S. B., Schneider M. J., Taylorson R. B., Toole V. K. The high-energy light action controlling plant responses and development. Proc Natl Acad Sci U S A. 1969 Oct;64(2):479–486. doi: 10.1073/pnas.64.2.479. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Downs R. J., Siegelman H. W. Photocontrol of Anthocyanin Synthesis in Milo Seedlings. Plant Physiol. 1963 Jan;38(1):25–30. doi: 10.1104/pp.38.1.25. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Ku P. K., Mancinelli A. L. Photocontrol of anthocyanin synthesis: I. Action of short, prolonged, and intermittent irradiations on the formation of anthocyanins in cabbage, mustard, and turnip seedlings. Plant Physiol. 1972 Feb;49(2):212–217. doi: 10.1104/pp.49.2.212. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Mancinelli A. L., Yang C. P., Lindquist P., Anderson O. R., Rabino I. Photocontrol of Anthocyanin Synthesis: III. The Action of Streptomycin on the Synthesis of Chlorophyll and Anthocyanin. Plant Physiol. 1975 Feb;55(2):251–257. doi: 10.1104/pp.55.2.251. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Marmé D., Boisard J., Briggs W. R. Binding properties in vitro of phytochrome to a membrane fraction. Proc Natl Acad Sci U S A. 1973 Dec;70(12 Pt 1-2):3861–3865. doi: 10.1073/pnas.70.12.3861. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Marmé D., Mackenzie J. M., Boisard J., Briggs W. R. The isolation and partial characterization of a membrane fraction containing phytochrome. Plant Physiol. 1974 Sep;54(3):263–271. doi: 10.1104/pp.54.3.263. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Quail P. H., Marmé D., Schäfer E. Particle-bound phytochrome from maize and pumpkin. Nat New Biol. 1973 Oct 10;245(145):189–191. doi: 10.1038/newbio245189a0. [DOI] [PubMed] [Google Scholar]
- Quail P. H., Schäfer E. Particle-bound phytochrome: a function of light dose and steady-state level of the far-red-absorbing form. J Membr Biol. 1974;15(4):393–404. doi: 10.1007/BF01870097. [DOI] [PubMed] [Google Scholar]
- Schneider M. J., Stimson W. R. Contributions of photosynthesis and phytochrome to the formation of anthocyanin in turnip seedlings. Plant Physiol. 1971 Sep;48(3):312–315. doi: 10.1104/pp.48.3.312. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Schneider M., Stimson W. Phytochrome and photosystem I interaction in a high-energy photoresponse. Proc Natl Acad Sci U S A. 1972 Aug;69(8):2150–2154. doi: 10.1073/pnas.69.8.2150. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Schopfer P., Mohr H. Phytochrome-mediated Induction of Phenylalanine Ammonia-Lyase in Mustard Seedlings: A Contribution to Eliminate Some Misconceptions. Plant Physiol. 1972 Jan;49(1):8–10. doi: 10.1104/pp.49.1.8. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Shropshire W., Jr Phytochrome, a photochromic sensor. Photophysiology. 1972;(7):33–72. [PubMed] [Google Scholar]