Quantification of cytokinin o-glucosides by negative ion mass spectrometry.
Pulsed positive ion-negative ion chemical ionization mass spectra of O-glucosyl-zeatin and -dihydrozeatin, their ribosides, and their N-9 2-cyanoethyl and 2-chloro-2-cyanoethyl derivatives are reported. By methods based on these spectra, the levels of the glucosides were determined in soybean (Glycine max) leaves.
Letham
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Plant Cell Biology Group, Research School of Biological Sciences, The Australian National University, P. O. Box 475, Canberra City, ACT, 2601, Australia.
Singh
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