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Plant Physiology 68:735-738 (1981)
© 1981 American Society of Plant Biologists

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Articles

Cytokinins from the Moss Physcomitrella patens1

Trevor L. Wang2, Roger Horgan3 and David Cove

Department of Genetics, University of Leeds, Leeds, LS2 9JT United Kingdom

Gametophore-over-producing mutants of the moss, Physcomitrella patens, when grown in liquid culture export high levels of cytokinin into their culture medium. The cytokinin produced by these mutants is postulated to account for their peculiar phenotype, that of mosses treated with exogenous cytokinin. N6-({Delta}2-isopentenyl)adenine, the major cytokinin, has been identified previously in two of these mutants (Wang, Cove, Beutelmann, Hartmann 1980 Phytochemistry 19: 1103-1105) and now in additional representatives. A second cytokinin, zeatin, has been identified by its chromatographic behavior and mass spectrum including chemical ionization mass spectrometry of its permethyl derivative.

2 To whom requests for reprints should be addressed at: Department of Applied Genetics, John Innes Institute, Colney Lane, Norwich, NR4 7UH, United Kingdom.

3 Present address: Department of Botany and Microbiology, the University College of Wales, Penglais, Aberystwyth, Dyfed, SY23 3AN, United Kingdom.

1 This work was supported by grant GR/A/3800.7 from the Science Research Council to D. J. C.




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Copyright © 1981 by the American Society of Plant Biologists