EXPERIMENTAL EVALUATION OF DISTRIBUTION OF 14C PHOTOASSIMILATED INTO CARBOHYDRATES IN DIFFERENT GROWTH STAGES OF FRUIT-BEARING APPLE SHOOTS USING A 13CO2 IN-SITU EXPOSURE SYSTEM. Issue 13 (9th September 2022)

• Record Type: Journal Article
• Authors: Satoh, Yuhi; Imada, Shogo; Tako, Yasuhiro; Moriya, Yuki
• Is Part Of: Radiation protection dosimetry. Volume 198:Issue 13/15(2022)
• Page Start: 920
• Page End: 925
• Publication Date: 2022-09-09
• Subjects: Radiation dosimetry -- Periodicals; Radiation -- Safety measures -- Periodicals; 363.1799
• DOI: 10.1093/rpd/ncac011
• Languages: English
• ISSNs: 0144-8420

Abstract

Abstract: In this study, we aimed to investigate the photoassimilation process of 14 CO2 into agricultural plants through determining the photoassimilated carbohydrate- 13 C in each part (leaves, current branch and fruit) of the fruit-bearing apple shoots exposed to 13 CO2 in different growth stages (early and late fruit development stages). The carbohydrate content was assessed as soluble (ethanol-extracted fraction) and other (HCl-extracted and residual fractions) components. The total (i.e. sum of the three fractions) bulk carbohydrate concentrations in all parts of the shoots were statistically similar between different growth stages. The changes in the concentration of 13 C-labeled soluble carbohydrate (i.e. ethanol-extracted fraction) to the total content between different growth stages were statistically unclear among all parts of the shoot. These results suggest that the distribution ratio of photoassimilated 13 C in soluble and other components in the apple shoot was thereabout constantly independent of the growth stages.