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| DOI | 10.3389/fpls.2024.1360381 |
| Phloem anatomy predicts berry sugar accumulation across 13 wine-grape cultivars | |
| 发表日期 | 2024 |
| ISSN | 1664-462X |
| 起始页码 | 15 |
| 卷号 | 15 |
| 英文摘要 | Introduction Climate change is impacting the wine industry by accelerating ripening processes due to warming temperatures, especially in areas of significant grape production like California. Increasing temperatures accelerate the rate of sugar accumulation (measured in SUPERSCRIPT ZEROBrix) in grapes, however this presents a problem to wine makers as flavor profiles may need more time to develop properly. To alleviate the mismatch between sugar accumulation and flavor compounds, growers may sync vine cultivars with climates that are most amenable to their distinct growing conditions. However, the traits which control such cultivar specific climate adaptation, especially for SUPERSCRIPT ZEROBrix accumulation rate, are poorly understood. Recent studies have shown that higher rates of fruit development and sugar accumulation are predicted by larger phloem areas in different organs of the plant.Methods Here we test this phloem area hypothesis using a common garden experiment in the Central Valley of Northern California using 18 cultivars of the common grapevine (Vitis vinifera) and assess the grape berry sugar accumulation rates as a function of phloem area in leaf and grape organs.Results We find that phloem area in the leaf petiole organ as well as the berry pedicel is a significant predictor of SUPERSCRIPT ZEROBrix accumulation rate across 13 cultivars and that grapes from warm climates overall have larger phloem areas than those from hot climates. In contrast, other physiological traits such as photosynthetic assimilation and leaf water potential did not predict berry accumulation rates.Discussion As hot climate cultivars have lower phloem areas which would slow down brix accumulation, growers may have inadvertently been selecting this trait to align flavor development with sugar accumulation across the common cultivars tested. This work highlights a new trait that can be easily phenotyped (i.e., petiole phloem area) and be used for growers to match cultivar more accurately with the temperature specific climate conditions of a growing region to obtain satisfactory sugar accumulation and flavor profiles. |
| 英文关键词 | phloem area; Brix accumulation; berry ripening; climate adaptation; viticulture; sieve plates |
| 语种 | 英语 |
| WOS研究方向 | Plant Sciences |
| WOS类目 | Plant Sciences |
| WOS记录号 | WOS:001196338300001 |
| 来源期刊 | FRONTIERS IN PLANT SCIENCE
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/290791 |
| 作者单位 | University of California System; University of California Davis |
| 推荐引用方式 GB/T 7714 | . Phloem anatomy predicts berry sugar accumulation across 13 wine-grape cultivars[J],2024,15. |
| APA | (2024).Phloem anatomy predicts berry sugar accumulation across 13 wine-grape cultivars.FRONTIERS IN PLANT SCIENCE,15. |
| MLA | "Phloem anatomy predicts berry sugar accumulation across 13 wine-grape cultivars".FRONTIERS IN PLANT SCIENCE 15(2024). |
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