Journalartikel

Jahr der Veröffentlichung: 1987

Seiten: 111-121

Zeitschrift: Journal of Plant Physiology

Bandnummer: 127

Heftnummer: 1-2

ISSN: 0176-1617

eISSN: 1618-1328

DOI Link: https://doi.org/10.1016/S0176-1617(87)80045-7

Verlag: Elsevier

Abstract: 
The major cytokinins in carrot (Daucus carota L.) were identified as 2-isopentenyladenine and 2-isopentenyladenosine. Both cytokinins occurred in the shoot, whereas only 2-isopentenyladenine could be detected in the root. The concentration of these two cytokinins increased with the development of the taproot and a strong positive correlation was found between root diameter and endogenous cytokinin concentration. An oscillation of the cytokinin concentration over 24 hours was observed in 4 different carrot cultivars and the wild carrot, with a maximum around noon and a minimum at night. Since these changes in cytokinin concentration over 24 hours could be maintained under environmentally controlled conditions it was concluded that a circadian rhythm exists for endogenous cytokinin concentration.

Harvard-Zitierstil: STIEBELING, B. and NEUMANN, K. (1987) IDENTIFICATION AND CONCENTRATION OF ENDOGENOUS CYTOKININS IN CARROTS (DAUCUS-CAROTA L) AS INFLUENCED BY DEVELOPMENT AND A CIRCADIAN-RHYTHM, Journal of Plant Physiology, 127(1-2), pp. 111-121. https://doi.org/10.1016/S0176-1617(87)80045-7

APA-Zitierstil: STIEBELING, B., & NEUMANN, K. (1987). IDENTIFICATION AND CONCENTRATION OF ENDOGENOUS CYTOKININS IN CARROTS (DAUCUS-CAROTA L) AS INFLUENCED BY DEVELOPMENT AND A CIRCADIAN-RHYTHM. Journal of Plant Physiology. 127(1-2), 111-121. https://doi.org/10.1016/S0176-1617(87)80045-7