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The loss of phytochrome photo reversibility in vitro part 2 properties of killer and its reaction with phytochrome


, : The loss of phytochrome photo reversibility in vitro part 2 properties of killer and its reaction with phytochrome. Planta (Heidelberg) 135(3): 217-224

Killer, a substance extracted from stem tissue of etiolated pea seedlings (Pisum sativum L. v. Alaska), interacts specifically with the far-red-absorbing form of phytochrome (Pfr) in vitro in a temperature-independent, rapid, stoichiometric fashion to cause a loss of phytochrome photoreversibility. The chromatographic, solubility, and spectral properties of partially purified fractions indicate that Killer is a cyclic, unsaturated molecule containing ionizible hydroxyl groups; its MW is unknown, although probably low. Possible mechanisms by which the Killer-phytochrome interaction results in the loss of photoreversibility are discussed.

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Related references

Fox, L.R., 1975: Loss of phytochrome photo reversibility in vitro part 1 extraction and partial purification of killer. Plant Physiology (Rockville) 55(2): 386-389

Fox, L.R., 1977: The loss of phytochrome photoreversibility in vitro : II. Properties of killer and its reaction with phytochrome. "Killer", a substance extracted from stem tissue of etiolated pea seedlings (Pisum sativum L. v. Alaska), interacts specifically with the far-red-absorbing form of phytochrome (Pfr) in vitro in a temperature-independent, rapid, stoichiom...

Fox, L.R., 1977: The loss of phytochrome photoreversibility in vitro. 2. Properties of Killer and its reaction with phytochrome. "Killer", a substance extracted from stem tissue of etiolated pea seedlings, interacted specifically with the far-red-absorbing form of phytochrome (Pfr) in vitro in a temp.-independent, rapid, stoichiometric fashion to cause a loss of p...

Lisansky S.G., 1972: Altering rates of decay of photo reversibility of phytochrome in vitro. Plant Physiology (rockville)ppl): 65

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Warner T.J.; Ross J.D.; Coombs J., 1981: Phytochrome control of maize zea mays cultivar northern belle coleoptile section elongation a rapid loss of photo reversibility. A rapid loss of far red light (FR) reversibility of red-light (R) stimulated elongation of maize coleoptile sections was observed. Reversal was not possible when the interval between R and FR treatment was greater than 45 s. Most R-stimulated elon...

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Thummler F.; Rudiger W., 1984: Models for the photo reversibility of phytochrome. Photochemistry & Photobiology 39(SUPPL): 85S