Topic
Zeatin
About: Zeatin is a research topic. Over the lifetime, 2467 publications have been published within this topic receiving 64092 citations. The topic is also known as: Zeatin & (E/Z)-zeatin.
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01 Feb 2009
8 citations
01 Apr 1976
TL;DR: The results strongly indicate that after uptake by the stalk zeatin is converted into the corresponding mono-, di- and tri-phosphate ribonucleotides, whereas incubation of phloem sap withZeatin only resulted in the formation of the mono-ribonucleotide.
Abstract: SUMMARY
The metabolism of zeatin-8-14C in detached inflorescence stalks of Yucca flaccida has been studied. The compound has been fed either through the xylem or has been added directly to phloem exudate.
The results strongly indicate that after uptake by the stalk zeatin is converted into the corresponding mono-, di- and tri-phosphate ribonucleotides, whereas incubation of phloem sap with zeatin only resulted in the formation of the mono-ribonucleotide.
8 citations
TL;DR: A simple procedure for the separation of the cis and trans isomers of zeatin and ribosylzeatin by column chromatography on a neutral polystyrene resin, Porapak Q, in aqueous ethanol solutions is reported.
Abstract: A simple procedure for the separation of the cis and trans isomers of zeatin and ribosylzeatin by column chromatography on a neutral polystyrene resin, Porapak Q, in aqueous ethanol solutions is reported. The method has been used to examine the stereoisomer composition of ribosylzeatin isolated from wheat germ transfer RNA. Chromatographic data for several other cytokinins are also presented.
8 citations
TL;DR: The results indicated that GA, ETH, and BR signaling can promote vegetative and reproductive development of lotus and external application of 28-epihomobrassinolide resulted in growth-promoting phenotypes including longer scapes, thicker leaves, and prolonged flowering.
8 citations
TL;DR: Buds are induced only by cytokinins, the largest number being produced with kinetin, followed by benzylaminopurine, bryokinin (2iP) and zeatin, and normal shoot buds were formed but their number was considerably reduced.
Abstract: SUMMARY Protonema of Trematodon brevicalyx remains bud-free on basal medium (Knop's Major and Nitsch's Minor salts). Indoleacetic acid (IAA), gibberellic acid, abscisic acid, chelates, salicylic acid and altered temperature, pH, agar, sucrose levels, light levels and photoperiod do not induce buds but affect gemma initiation and growth rates of protonema. Buds are induced only by cytokinins, the largest number being produced with kinetin, followed by benzylaminopurine, bryokinin (2iP) and zeatin. When varying concentrations of IAA (10-4 to 10-8 M) were added together with the optimum concentration of kinetin (10-5 M), normal shoot buds were formed but their number was considerably reduced.
8 citations