دورية أكاديمية

Auxin action: the search for the receptor.

التفاصيل البيبلوغرافية
العنوان: Auxin action: the search for the receptor.
المؤلفون: Cross, J. W.
المصدر: Plant, Cell & Environment; Jul1985, Vol. 8 Issue 5, p351-359, 9p
مصطلحات موضوعية: AUXIN, PLANT regulators, PLANT growth, ACETIC acid
مستخلص: The molecular specificity of the substances which have auxin activity implies the existence of specific receptors. There have been many efforts to identify and isolate these receptors on the assumption that they should bind auxins with affinities coordinate to their activities in bioassays. However, the known complexity of auxin uptake and metabolism make this assumption seriously deficient. Although several such binding sites have, in fact, been identified, proof of a connection between these sites and auxin action has been lacking. Definite proof would include a requirement that the site be reconstituted, together with the appropriate macromolecular machinery, to construct a model of an auxin response. At the moment, our ignorance of the biochemistry and molecular biology of auxin growth responses makes such a proof difficult. However, two avenues of research promise to accelerate the rate of progress. The increasingly potent tools of molecular biology should soon allow the dissection of auxinregulated gene expression, while improved knowledge of plasma membrane proton pumps and the mechanism of cell wall biosynthesis should produce, in parallel, an understanding of the auxin regulation of acid growth. [ABSTRACT FROM AUTHOR]
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قاعدة البيانات: Complementary Index
الوصف
تدمد:01407791
DOI:10.1111/j.1365-3040.1985.tb01410.x