Kinetin-Induced Chloroplast Maturation in Cultures of Tobacco Tissue

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Science  17 Sep 1965:
Vol. 149, Issue 3690, pp. 1387-1388
DOI: 10.1126/science.149.3690.1387


Cultured tobacco tissue possesses proplastids capable of differentiating into mature chloroplasts. Kinetin (6-furfurylaminopurine) is a specific requirement for this differentiation; the absence of this compound results in a blockage of the formation of grana. The possibility that kinetin exerts a direct effect upon chloroplast differentiation is considered.