Sammanfattning

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

Publicerad i

Physiologia Plantarum
2004, Volym: 121, nummer: 3, sidor: 439-447
Utgivare: BLACKWELL MUNKSGAARD

SLU författare

• Nicander, Björn

  • Institutionen för växtbiologi, Sveriges lantbruksuniversitet
    

• Gerhardson, Berndt

  • Institutionen för skoglig mykologi och växtpatologi, Sveriges lantbruksuniversitet
    

UKÄ forskningsämne

Landskapsarkitetktur
Miljö- och naturvårdsvetenskap
Livsmedelsvetenskap


Publikationens identifierare

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

Permanent länk till denna sida (URI)

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