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Research article - Peer-reviewed, 2004

5 '-Deoxyisopentenyladenosine and other cytokinins in culture filtrates of the bacterium Pantoea agglomerans

Omer ZS, Bjorkman PO, Nicander B, Tillberg E, Gerhardson B

Abstract

A Pantoea agglomerans isolate from barley seeds, selected for inducing growth promotion in tomato test plants, was found to excrete several hormones of the cytokinin class into its culture medium. In addition to isopentenyladenine, isopentenyladenosine and the 2-methylthiol derivates of these, an unknown compound with affinity to anticytokinin antibodies was also isolated. Mass spectroscopy indicated the structure of this to be a deoxyisopentenyladenosine. The structure of 9-(5'-deoxy-beta-D-ribofuranosyl)-6-(3-methyl-2-butenylamino)purine was verified after synthesis of standards and analysis with GC-MS. The synthesized 5'-deoxyisopentenyl-adenosine showed activity in the Amaranthus bioassay, specific for cytokinins. To our knowledge this is the first report of a naturally occurring cytokinin containing 5'-deoxyribose

Published in

Physiologia Plantarum
2004, Volume: 121, number: 3, pages: 439-447
Publisher: BLACKWELL MUNKSGAARD

      SLU Authors

    • UKÄ Subject classification

      Landscape Architecture
      Environmental Sciences related to Agriculture and Land-use
      Food Science

      Publication identifier

      DOI: https://doi.org/10.1111/j.1399-3054.2004.00337.x

      Permanent link to this page (URI)

      https://res.slu.se/id/publ/4715