Articles
CARBOHYDRATES VARIATION IN LEAVES AND FLASHY TAPROOT OF VERNALIZED AND NON-VERNALIZED RADISH (RAPHANUS SATIVUS L.) DURING FLASHY TAPROOT DEVELOPMENT
Article number
936_59
Pages
443 – 448
Language
English
Abstract
Radish (Raphanus sativus L.) vernalization is an important stage and has great relationship with carbohydrate metabolism.
Leaves (source) and fleshy taproot (sink) carbohydrate levels were investigated during flashy taproot development of radish Weixianqing with vernalization (4°C temperature treatment for 1 month: WVR) and non-vernalization (without low temperature treatment: NVR).The results showed that during the two-leaf stage of NVR, glucose content ranked the first, followed by fructose, then was sucrose, raffinose, and galactose content was the lowest; After that stage, the content of all kinds of soluble sugar in NVR declined slowly, and all soluble sugar concentration peaked at the 7th day after broken belly stage began.
The total sugar variation tendency in NVR flashy taproots was the same as that in leaves, the primary sugars accumulated in root were mainly glucose, fructose and sucrose, while raffinose and galactose were nearly zero.
Compared with the NVR, the total sugar and all kinds of soluble sugar in leaves and flashy taproot were higher in WVR, especially for sucrose and raffinose, which were much higher.
Leaves (source) and fleshy taproot (sink) carbohydrate levels were investigated during flashy taproot development of radish Weixianqing with vernalization (4°C temperature treatment for 1 month: WVR) and non-vernalization (without low temperature treatment: NVR).The results showed that during the two-leaf stage of NVR, glucose content ranked the first, followed by fructose, then was sucrose, raffinose, and galactose content was the lowest; After that stage, the content of all kinds of soluble sugar in NVR declined slowly, and all soluble sugar concentration peaked at the 7th day after broken belly stage began.
The total sugar variation tendency in NVR flashy taproots was the same as that in leaves, the primary sugars accumulated in root were mainly glucose, fructose and sucrose, while raffinose and galactose were nearly zero.
Compared with the NVR, the total sugar and all kinds of soluble sugar in leaves and flashy taproot were higher in WVR, especially for sucrose and raffinose, which were much higher.
Authors
X. Du, J. Cheng, L. Yang , S. Wang
Keywords
radish, vernalization, soluble sugar
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