The effects of root decapitation on lateral root formation and cytokinin production in Pisum sativum [endogenous cytokinins, pea seedlings]
1981
Forsyth, C. | Staden, J. Van (Natal Univ., Pietermaritzburg (South Africa). Dept. of Botany)
Decapitation of the primary roots of Pisum sativum L. resulted in a significant increase in the initiation of lateral root primordia within 12 h of the surgical treatment. Although this increase occurred both in the light and in the dark, lateral root initiation and development was much more rapid in the dark. The formation of lateral root primordia was accompanied by increased levels of endogenous cytokinins suggesting that newly formed root primordia start producing cytokinins very soon after being initiated. The significance of the present results in terms of possible sites of synthesis in vegetative tissue is discussed.
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