The Effect of Root Formation on the Levels of Protein, Chlorophyll, RNA, DNA and Carbohydrates in Excised Cotyledons of Cucurbita pepo
1976
MOHAMMAD, A. M. S. | AL‐MASHHADANI, Y.
In attached cotyledons of Cucurbita pepo L. protein, chlorophyll, RNA, DNA and carbohydrates were found to increase to a maximum level 14 days after commencement of germination, followed by a sharp decline thereafter. Cotyledons excised and planted in a nutrient solution 14 days after sowing showed maximum levels of protein, chlorophyll, RNA, DNA and soluble and insoluble sugars 52 days after planting. The increase in these compounds coincides with the full development of the root system. Excision earlier or later than 14 days resulted in lower levels of protein and other compounds. The decrease in the level after 52 days was parallel to the senescing phase of the cotyledons.
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