Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. See plant hormone.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A plant hormone

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. (botany) a plant product that acts like a hormone

Etymologies

Sorry, no etymologies found.

Examples

  • Substantial quantities of abscisic acid, a phytohormone recognized by the scientific community for its health ... science, the closely guarded secrets of one of our nation's most distinctive emblems, maple syrup, are now being revealed.

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  • Mapping and genetic complementation tests indicate that sum63 is allelic to CYP85A2 (AT3G30180) a cytochrome p450 enzyme that catalyzes the final steps in the synthesis of the phytohormone brassinolide.

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  • Abscisic acid (ABA) is an important phytohormone that regulates plant stress responses.

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  • The phytohormone gene list should be considered a tool rather than representing an exhaustive inventory of all known phytohormone genes.

    PLoS Biology: New Articles

  • Of the 95 phytohormone genes that significantly matched the models in L counterpart (negative correlation), and 13 were not significantly expressed.

    PLoS Biology: New Articles

  • These results suggest that the expression of the HUD-containing phytohormone genes increases in the absence of light signaling (darkness or the light signaling mutant, phyB) and that, in part, the circadian clock specifically acts to abrogate this expression during the early part of the dark period.

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  • One explanation is that the circadian clock is required to maintain flux through downstream light signaling pathways in the early part of the night, so despite the plant experiencing darkness, HUD-containing phytohormone gene expression is moderate under long nights.

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  • In the phyB mutant, the HUD-containing phytohormone genes are not directly induced by darkness, but are constantly elevated as compared with the phytohormone genes without the HUD.

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  • We have focused on the phytohormone genes that are correlated with maximal elongation rate, which are the genes that display peak abundance at or around dawn.

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  • The modest increase in hypocotyl length may reflect the fact that there is only a limited set of components in the phytohormone growth pathway available at that time of day, suggesting that the internal coincidence with other phytohormones is also important for growth.

    PLoS Biology: New Articles

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