Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 15 of 15 for “"Zeatin"”.
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Identification of soybean, Glycine max (L.) Merr., cytokinins
… and relatively non-polar groups, compared to zeatin. The polar fraction was the single most bioactive fraction and the active substance was tentatively identified as a zeatin glucoside or zeatin riboside glucoside. The moderately polar fraction contained bioactive substances that co-eluted …
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Water, mineral nutrient and hormone flows and exchanges in the hemiparasitic association between root hemiparasite Rhinanthus minor and the host Hordeum vulgare
… and metabolism of abscisic acid (ABA) and zeatin type cytokinins (zeatin Z, zeatin riboside ZR, zeatin nucleotide ZN) within the host, the parasite and between host and parasite and the flows and partitioning of the transport metabolites mannitol in the parasite, and of sucrose in the host, …
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Detection of trace concentrations of small and big molecules through vibrational spectroscopy
… X-ray photoelectron spectroscopy. We analyzed zeatin, a small plant hormone (219 Da), and hemoglobin (Hb), a large protein (64,500 Da). Zeatin detection ranged from 1 mM to 1 nM, even in complex bacterial media, while Hb detection involved ligand-functionalized substrates targeting the heme …
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Expanding the genetic variability of flatpea using tissue culture, mutagenesis, and intercrossing techniques
… 5.0 µM IAA (indole acetic acid) and 2.5 µM zeatin for callus initiation; after two subcultures, calli were transferred to a regeneration medium containing 0.1 µM IAA and 1.0 µM zeatin. Calli and regenerated root tissue contained 47 and 381 as much DABA as leaf tissue from 'Lathco' flatpea …
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Development of in vitro regeneration and gene transfer systems for conifer species
… Skoog (WS) medium supplemented with 15 $\mu$M zeatin was found to be optimum for shoot proliferation. Using in vitro-grown needles of S. sempervirens, shoot organogenesis and somatic embryogenesis were induced. The influence of genotype and various cytokinins (BA, BPA, and TDZ) in combination …
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Discovery, surveillance, and management of herbicide-resistant amaranthus spp
… acid (IAA) at 0.9 mg L-1 and the cytokinin trans-zeatin-riboside (zeatin) at 2.8 mg L-1. Root regeneration was consistently achieved from callus utilizing a MS media supplemented with 4.2 mg L-1 zeatin in the absence of IAA. Utilizing a linear dilution series, zeatin was determined to be unable to …
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Analyse von Protein-Protein Interaktionen im Typ IV Sekretionssystem von Agrobacterium tumefaciens
… und N-terminaler Sequenzierung als „trans-Zeatin produzierendes Protein“ (Tzs) identifiziert. Die Untersuchung der enzymatischen Aktivität von Tzs ergab eine Umsetzung von 4-Hydroxy-3-methyl-2-(E)-butenyldiphosphat (HMBPP) mit AMP zu Zeatinribosid-5´-monophosphat (ZMP), einem Phytohormon …
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Development of novel in vitro systems for natural anthocyanin production
… supplemented with sucrose 30%, IAA 2.26 $\mu$M, zeatin 3.49 $\mu$M, and pH 5.7 (adjusted prior autoclaving) was optimal for growth and anthocyanin production in callus cultures. In cell culture suspensions, the medium composition was similar to callus cultures, but sucrose concentration was …
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De novo morphogenesis on tomato thin cell layers and variation for genetic recombination among plantlets regenerated from tissue culture
… in subsequent experiments by substituting 10 µM zeatin or 10 µM benzyladenine for kinetin. Root formation occurred when media contained higher (0.1 and 10µM) auxin concentrations. Flowers were formed on elongated shoots with several leaves when media contained 10µM IAA and 0.1µM kinetin. …
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Az in vitro szaporítás hatékonyságának fokozását célzó eljárások alakalmazása kertészeti növényeken
… Különböző citokininek (kinetin, 2iP, BAP, zeatin, TDZ) hatását vizsgáltuk a hajtáscsúcsból, valamint levél-, levélnyél-, internódium- és gyökér darabokból történő hajtásindukció folyamatában Atropa belladonna és Populus alba tenyészetekben. A leghatékonyabb citokinin ill. ennek optimális …
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Characterization of molecular functions of polyamines in fruit development and ripening in tomato (Solanum lycopersicum)
… glycolysis, starch and sugar metabolism, and zeatin biosynthesis. Taken together these results indicate that SPD is associated with enhancing many metabolic pathways and delaying senescence-related processes leading to improved postharvest fruit quality. I have collated transcriptome of …
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Characterization of molecular functions of polyamines in fruit development and ripening in tomato (Solanum lycopersicum)
… glycolysis, starch and sugar metabolism, and zeatin biosynthesis. Taken together these results indicate that SPD is associated with enhancing many metabolic pathways and delaying senescence-related processes leading to improved postharvest fruit quality. I have collated transcriptome of …
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Analyse des Wachstums von Tabakpflanzen bei ambienter (360 ppm) und erhöhter (700 ppm) CO2-Konzentration - Rolle von Phytohormonen bei der Wachstumsregulation
… In den meisten Organen dominierten die CK der Zeatin-Familie, insbesondere die Riboside. Lediglich in den Blättern waren besonders die CK der Dihydrozeatin- (Sink-Blätter) aber auch jene der Isopentenyladenin-Familie (Source-Blätter) etwa gleich stark vertreten. Aufgrund der Unterschiede in den …
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GENETIC MANIPULATION OF CYTOKININ LEVELS IN NEW PLANT TYPE RICE
… (CK-7-Nglucosides and CK-9-N-glucosides), cis-zeatin and its derivative CKs. The results showed that it is not the actual content of CKs but the changes in dynamics of CKs which are decisive for fast senescence. The grain filling percentage was positively and significantly correlated with the …
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Signal-metabolome interactions in plants
From its first use in the field of biochemistry, instrumental analysis offered a variety of invaluable tools for the comprehensive description of biological systems. Multi-selective methods that aim to cover as many endogenous compounds as possible in biological samples use different analytical …