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Phytochrome controlled gibberellin metabolism in etioplast envelopes

✍ Scribed by R. J. Cooke; R. E. Kendrick

Book ID: 104749364
Publisher: Springer-Verlag
Year: 1976
Tongue: English
Weight: 455 KB
Volume: 131
Category: Article
ISSN: 0032-0935
DOI: 10.1007/bf00385431

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✦ Synopsis

Disruption of preparations of intact etioplasts isolated from wheat (Triticum aestivum L.) leaves in the dark leads to an increase in the level of extractable gibberellin-like (GA-like) activity. Irradiation of disrupted preparations with red light causes an alteration in the Rf of part of the GA-like activity. A study of sub-etioplast fractions prepared by gradient centrifugation indicates that the phytochrome and the GA-like substances are associated principally with the etioplast envelope.

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