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Changes in endogenous cytokinin levels in cotyledons of Cucurbita pepo (zucchini) during natural and dark-induced senescence



Changes in endogenous cytokinin levels in cotyledons of Cucurbita pepo (zucchini) during natural and dark-induced senescence



Physiologia Plantarum 122(1): 133-142



Cytokinin (CK) levels in cotyledons of Cucurbita pepo L. (zucchini) were investigated through the processes of post-germination, greening, natural senescence and subsequent rejuvenation. The concentrations of the physiologically active CK bases, ribosides and nucleotides, as well as the cis-isomers of zeatin derivatives, decreased between the first and fifth weeks of cultivation under controlled light conditions.

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Accession: 004067344

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DOI: 10.1111/j.1399-3054.2004.00378.x


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