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Plant Physiology 43:1259-1263 (1968) © 1968 American Society of Plant Biologists Kinetically Distinguishable Populations of Phytochrome 1The Biological Laboratories, Harvard University, Cambridge, Massachusetts 02138
Two or more kinetically distinguishable populations of phytochrome molecules were observed in living tissues of oat, pea, maize, and cauliflower, as well as in extracts of oat. At least 3 different populations occurred in cauliflower florets, while 2 were observed in each of the other species. In extracted oat phytochrome, the relative proportions of the 2 forms remained constant during successive stages of purification. The physiological significance of this multiplicity of forms remains unclear.
2 National Science Foundation Senior Postdoctoral Fellow. Permanent address: Department of Biological Sciences, University of California, Santa Barbara, California 93106. 1 Supported by National Science Foundation Grant GB-6683 and a grant from Research Corporation to W. R. Briggs. This article has been cited by other articles:
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