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. 1969 Jan;44(1):105–109. doi: 10.1104/pp.44.1.105

Evidence for Bound Phytochrome in Oat Seedlings 1

Bernard Rubinstein a,2, K Susan Drury a,3, R B Park a
PMCID: PMC396046  PMID: 16657022

Abstract

Phytochrome is consistently observed in pellets centrifuged from homogenates of etiolated, 5-day-old oat seedlings. The majority of pigment associated with the pellet cannot be removed by buffer washes, nor can appreciable quantities of additional phytochrome be adsorbed onto the sedimented material. Over 70% of phytochrome in the pellet is released by 1% Triton X-100.

Storage at 0°, irradiation by white light, and Triton treatment all cause much greater loss of photoreversibility in pelleted phytochrome than in supernatant phytochrome. We conclude that the phytochrome in the 1500 to 40,000g (30 min) pellet is distinct from the soluble phytochrome in the supernatant.

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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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