Journal ArticleDOI
An enzyme from lupin seeds forming alanine derivatives of cytokinins
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TLDR
A new enzyme, which catalyses the conversion of the cytokinin zeatin to the alanine conjugate l upinic acid, has been partly purified from developing lupin seed and the possible role of the enzyme, tentatively called β-(9-cytokinin)alanine synthase or lupinic acid synthase, in the regulation of hormone activity is discussed.About:
This article is published in Phytochemistry.The article was published on 1983-01-01. It has received 28 citations till now. The article focuses on the topics: Alanine & Hormone activity.read more
Citations
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Journal ArticleDOI
Cytokinin metabolism and action
David W. S. Mok,Machteld C. Mok +1 more
TL;DR: This review centers on cytokinin metabolism with connecting discussions on biosynthesis and signal transduction, and important findings are summarized with emphasis on metabolic enzymes and genes.
Journal ArticleDOI
Evolution of cytokinin biosynthesis and degradation
TL;DR: This review summarizes present knowledge on the enzymes that synthesize cytokinins, form cytokinin conjugates, and carry out irreversible elimination of the hormones, including their phylogenetic analysis and possible variations in different organisms.
Journal ArticleDOI
Conjugates of auxin and cytokinin.
Andrzej Bajguz,Alicja Piotrowska +1 more
TL;DR: The concept of reversible conjugation of auxins and cytokinins suggests that under changeable environmental, developmental or physiological conditions these compounds can be a source of free hormones.
Journal ArticleDOI
Cytokinins: biosynthesis, metabolism and perception.
TL;DR: This review summarizes the current status of knowledge on cytokinin biosynthesis, metabolism and signal transduction, with an emphasis on genes encoding metabolic enzymes and putative receptors, and genes rapidly induced by cytokinins.
Journal ArticleDOI
Phytohormone Conjugates: Nature and Function
TL;DR: Recent developments in studies on phytohormone conjugation, involving both biochemical and molecular biology approaches, are presented and the nature and possible functions of the conjugates are discussed.
References
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Journal Article
Protein Measurement with the Folin Phenol Reagent
TL;DR: Procedures are described for measuring protein in solution or after precipitation with acids or other agents, and for the determination of as little as 0.2 gamma of protein.
Journal ArticleDOI
Estimation of the molecular weights of proteins by Sephadex gel-filtration.
TL;DR: The results are similar to those of previous studies, where the objective was to establish a cause-and-effect relationship, rather than a straightforward relationship between the number of cells and the content of the molecule.
Journal ArticleDOI
Hydrophobic effects in reversed-phase liquid chromatography
TL;DR: The role of hydrophobic effects in revered-phase liquid chromatography is examined in this article, where a new topological index, the molecular connectivity, is introduced to represent solute surface area.
Journal ArticleDOI
Association of the α and β2 Subunits of the Tryptophan Synthetase of Escherichia coli
TL;DR: The results indicate that the fully associated enzyme (α2β2) has a sedimentation coefficient of 6.4S and is in relatively rapid equilibrium with the free subunits, consistent with the reversible binding of individual α subunits to two identical and independent sites on the β2 subunit.
Journal ArticleDOI
Regulators of cell division in plant tissues : XXV. Metabolism of zeatin by lupin seedlings.
TL;DR: In this article, the radioactivity in the xylem sap of intact seedlings, supplied with [(3)H]zeatin via the roots, was largely due to Zeatin, dihydrozeatin and zeatin riboside.
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Chatfield Jm,Armstrong Dj +1 more