Model-based analysis of sugar accumulation in response to source-sink ratio and water supply in grape (Vitis vinifera) berries
文献类型：期刊论文
| 作者 | Dai, Zhan Wu1; Vivin, Philippe1; Robert, Thierry1; Milin, Sylvie1; Li, Shao Hua2; Genard, Michel3 |
| 刊名 | FUNCTIONAL PLANT BIOLOGY
 |
| 出版日期 | 2009 |
| 卷号 | 36期号:6页码:527-540 |
| 关键词 | modelling sugar concentration water supply |
| ISSN号 | 1445-4408 |
| DOI | 10.1071/FP08284 |
| 英文摘要 | The dynamics of sugar (hexose) concentration in ripening grape berries (Vitis vinifera L.) were simulated with a refined mechanistic model. Changes in sugar concentration were reproduced by the sum of sugar import (S), sugar metabolism (M) and water budget (W). S and W were derived from model inputs of fresh and dry mass, and M was simulated with a relative metabolism rate describing the depletion of hexose. The relative metabolism rate was associated with the relative growth rate of dry mass with a coefficient (k) that was constant for a given cultivar under various growth conditions (temperature, water supply, and source-sink ratio) but varied with genotype. The k value was similar to 20% higher for cv. Merlot than for cv. Cabernet Sauvignon, indicating more imported sugars would be depleted by Merlot than Cabernet Sauvignon. The model correctly simulated the negative effect of lowered leaf-to-fruit ratio and the positive effect of water shortage on sugar concentration. Sensitivity analysis revealed that the present model was weakly sensitive to k because of sugar accumulation being predominantly controlled by S, with M relatively small (similar to 20%) with respect to the increment of sugar concentration. Model simulation indicated that the decreasing leaf-to-fruit ratio reduced S more than M and W, causing a net decrease in sugar concentration. In contrast, the water shortage decreased S less than M and W, resulting in a net increase in sugar concentration. |
| WOS研究方向 | Plant Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000267247200006 |
| 出版者 | CSIRO PUBLISHING |
| 源URL | [http://202.127.146.157/handle/2RYDP1HH/1068]  |
| 专题 | 中国科学院武汉植物园 |
| 通讯作者 | Vivin, Philippe |
| 作者单位 | 1.ISVV Bordeaux, INRA, UMR Ecophysiol & Genom Fonct Vigne 1287, F-33882 Villenave Dornon, France 2.Chinese Acad Sci, Wuhan Bot Garden, Wuhan 430074, Peoples R China 3.INRA, UR Plantes & Syst Culture Hort 1115, F-84914 Avignon 9, France |
| 推荐引用方式 GB/T 7714 | Dai, Zhan Wu,Vivin, Philippe,Robert, Thierry,et al. Model-based analysis of sugar accumulation in response to source-sink ratio and water supply in grape (Vitis vinifera) berries[J]. FUNCTIONAL PLANT BIOLOGY,2009,36(6):527-540. |
| APA | Dai, Zhan Wu,Vivin, Philippe,Robert, Thierry,Milin, Sylvie,Li, Shao Hua,&Genard, Michel.(2009).Model-based analysis of sugar accumulation in response to source-sink ratio and water supply in grape (Vitis vinifera) berries.FUNCTIONAL PLANT BIOLOGY,36(6),527-540. |
| MLA | Dai, Zhan Wu,et al."Model-based analysis of sugar accumulation in response to source-sink ratio and water supply in grape (Vitis vinifera) berries".FUNCTIONAL PLANT BIOLOGY 36.6(2009):527-540. |
入库方式： OAI收割
来源：武汉植物园
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