Cytokinins from the Moss Physcomitrella patens |
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Authors: | Wang T L Horgan R Cove D |
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Institution: | Department of Genetics, University of Leeds, Leeds, LS2 9JT United Kingdom. |
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Abstract: | 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-(Δ2-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. |
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