Comparative Analysis of the Translocation of [14C]CO2-Derived Photosynthetic Products and Foliar-Applied [14C]-Sucrose in Soybean

Photosynthates are translocated into the plant tissue mainly in the form of sucrose. To determine whether there are differences in translocation between internally produced photosynthates and externally applied sucrose, 14CO2 or 14C-sucrose was supplied to specific soybean leaves and the 14C activit...

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Bibliographic Details
Published inRADIOISOTOPES Vol. 74; no. 1; pp. 91 - 102
Main Authors Kaiho-Soma, Ai, Sugita, Ryohei, Kurita, Yuko, Kobayashi, Natsuko I., Nakanishi, Tomoko M., Tanoi, Keitaro
Format Journal Article
LanguageEnglish
Japanese
Published Japan Radioisotope Association 15.03.2025
公益社団法人 日本アイソトープ協会
Subjects
carbon-14
photosynthesis
soybean
translocation
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Summary:Photosynthates are translocated into the plant tissue mainly in the form of sucrose. To determine whether there are differences in translocation between internally produced photosynthates and externally applied sucrose, 14CO2 or 14C-sucrose was supplied to specific soybean leaves and the 14C activity distribution was compared. The distribution rates were almost the same among the above-ground tissues, but different in the roots. Care should be taken when using 14C-sucrose as a photosynthate, especially when focusing on roots.
ISSN:0033-8303
1884-4111
DOI:10.3769/radioisotopes.740116