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Phenotypic response of different cytokinins on M. atropurpureum. (a) 10 μM BAP. (b) 50 μM cis-zeatin. (c) 10 μM dihydrozeatin. (d) 50 μM kinetin. (e) 60 μM trans-zeatin. Pseudonodules are shown 4 weeks after treatment. Bars (a–d) 500 μm; (e) 200 mm.
