A plant hormone that promotes cell division and differentiation, particularly in shoots and leaves. Cytokinins work together with auxins to regulate plant growth and development, often having opposite effects.
From Greek 'kytos' meaning cell and 'kinein' meaning to move, coined in 1955 when scientists discovered this hormone's role in stimulating cell division (cytokinesis). The name reflects its function in moving cells through division.
Cytokinin is like auxin's dance partner in plant growth - while auxin says 'grow longer,' cytokinin says 'divide more,' and together they choreograph whether a plant becomes tall and spindly or short and bushy!
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