Isolation, identification and biological activity of new endogenous cytokinin class
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15410%2F03%3A00001337" target="_blank" >RIV/61989592:15410/03:00001337 - isvavai.cz</a>
Alternative codes found
RIV/61989592:15310/03:00001337
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Isolation, identification and biological activity of new endogenous cytokinin class
Original language description
Our research of naturally occuring cytokinins in plants led to the discovery of four new plant hormone substances: 6-(2-methoxybenzylamino)purine and 6-(3-methoxybenzylamino)purine and their 9-b-D-ribofuranosyl derivates. These substances were identifiedin Arabidopsis thaliana plants and Populus x canadensis leaves by capillary-liquid chromatography/ frit-fast atom bombardment - mass spectrometry after precolumn derivatization. Endogenous levels of the methoxytopolins were studied using enzyme-linked immunosorbent assays of HPLC-fractionated extracts. Their high cytokinin activity was demonstrated in three bioassays testing their ability to stimulate tobacco callus growth, to delay chlorophyll degradation in excised wheat leaves, and to induce betacyanin synthesis in Amaranthus caudatus var. atropurpurea cotyledons.The results showed particularly their great potential as anti-senescence factors. Moreover, the ability of new derivatives (in micromolar concentrations) to inhibit growth
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
EF - Botany
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GA522%2F01%2F0275" target="_blank" >GA522/01/0275: Study of new cytokinin metabolites: isolation, identification and biosynthesis</a><br>
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2003
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Plant Biology 2003 - the 2003 annual meeting of the American Society of Plant Biology
ISBN
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ISSN
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e-ISSN
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Number of pages
286
Pages from-to
150
Publisher name
American Society of Plant Physiologists
Place of publication
Honolulu
Event location
Honolulu
Event date
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Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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