Metabolism of /sup 14/C-zeatin in Phaseolus embryos: occurrence of O-xylosyldihydrozeatin and its ribonucleoside. [Phaseolus acutifolius; Phaseolus coccineus]

Journal Article · Wed Jul 01 00:00:00 EDT 1987 · Plant Physiol.; (United States)

OSTI ID:6075385

Mok, D W.S.; Mok, M C

The metabolism of trans-(8-/sup 14/C)zeatin was examined in embryos of Phaseolus acutifolius A. Gray P.I. 321637 and Phaseolus coccineus Lam. cys Scarlet Runner and Desiree. In both species zeatin was converted to ribosylzeatin, ribosylzeatin 5'-monophosphate, O-glucosyl-9-ribosylzeatin and the recently discovered O-xylosyl derivatives of zeatin and ribosylzeatin. Two new metabolites, identified by enzyme degradation and gas chromatography-mass spectrography analyses as O-xylosyldihydrozeatin and its ribonucleoside, were recovered from P. coccineus embryos. From this and previous studies it may be concluded that the potential to form O-xylosyl derivatives of zeatin is present only in embryos of three Phaseolus species (P. vulgaris L., P. coccineus, and P. acutifolius), but not in P. lunatus L., while the reduction of the side chain is most prominent in P. coccineus.

• Research Organization: Oregon State Univ., Corvallis
• OSTI ID: 6075385
• Journal Information: Plant Physiol.; (United States), Vol. 84:3
• Country of Publication: United States
• Language: English

Related Subjects

59 BASIC BIOLOGICAL SCIENCES
PLANT GROWTH REGULATORS
METABOLISM
METABOLITES
SEEDS
CARBON 14 COMPOUNDS
GAS CHROMATOGRAPHY
MASS SPECTROSCOPY
NUCLEOSIDES
PHASEOLUS
TRACER TECHNIQUES
BACTERIA
CHROMATOGRAPHY
ISOTOPE APPLICATIONS
LABELLED COMPOUNDS
LEGUMINOSAE
MICROORGANISMS
NUCLEOTIDES
ORGANIC COMPOUNDS
PLANTS
RHIZOBIUM
RIBOSIDES
SEPARATION PROCESSES
SPECTROSCOPY
550201* - Biochemistry- Tracer Techniques