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PHYTOCHROME REGULATION OF EXTRACTABLE CYTOCHROME OXIDASE ACTIVITY DURING EARLY GERMINATION OF BROMUS STERILIS L. AND LACTUCA SATIVA L. CV. GRAND RAPIDS SEEDS
Author(s) -
HILTON J. R.,
OWEN P. D.
Publication year - 1985
Publication title -
new phytologist
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.742
H-Index - 244
eISSN - 1469-8137
pISSN - 0028-646X
DOI - 10.1111/j.1469-8137.1985.tb02768.x
Subject(s) - lactuca , germination , radicle , phytochrome , botany , biology , red light
S ummary Phytochrome‐induced changes in the activity of cytochrome oxidase, the respiratory enzyme involved in the terminal oxidation of substrates of the tricarboxylic acid cycle, have been detected during the early stages of germination prior to radicle protrusion. Photoreversible changes in extractable enzyme activity have been demonstrated in the seeds of two species; Lactuca sativa , in which germination is promoted by Pfr, and Bromus sterilis , in which germination is inhibited by Pfr.