| 摘要 |
The present invention provides a method of modifying one or more plant cytokinin-mediated morphological, biochemical and physiological properties or characteristics, such as one or more environmental adaptive responses and/or developmental processes, including but not limited to the initiation, promotion, stimulation or enhancement of cell division and/or seed development and/or tuber formation and/or shoot initiation and/or bushiness and/or dwarfism and/or pigment synthesis, and/or the modification of source/sink relationships, and/or the inhibition of root growth and/or the inhibition of apical dominance and/or the delay of senescence and/or increased tuberisation and/or increased grain size, said method comprising expressing a cell cycle control protein, in particular the Cdc25 phosphoprotein phosphatase, in the plant, operably under the control of a regulatable promoter sequence such as a cellspecific promoter, tissue-specific promoter, or organ-specific promoter sequence.
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