Insight into Carbohydrate Metabolism and Signaling in Grapevine Buds during Dormancy Progression
Perennial fruit crops enter dormancy to ensure bud tissue survival during winter. However, a faster phenological advancement caused by global warming exposes bud tissue to a higher risk of spring frost damage. Tissue dehydration and soluble sugars accumulation are connected to freezing tolerance, bu...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-04-01
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| Series: | Plants |
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| Online Access: | https://www.mdpi.com/2223-7747/11/8/1027 |
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| author | Valeria De Rosa Rachele Falchi Erica Moret Giannina Vizzotto |
| author_facet | Valeria De Rosa Rachele Falchi Erica Moret Giannina Vizzotto |
| author_sort | Valeria De Rosa |
| collection | DOAJ |
| description | Perennial fruit crops enter dormancy to ensure bud tissue survival during winter. However, a faster phenological advancement caused by global warming exposes bud tissue to a higher risk of spring frost damage. Tissue dehydration and soluble sugars accumulation are connected to freezing tolerance, but non-structural carbohydrates also act as metabolic substrates and signaling molecules. A deepened understanding of sugar metabolism in the context of winter freezing resistance is required to gain insight into adaptive possibilities to cope with climate changes. In this study, the soluble sugar content was measured in a cold-tolerant grapevine hybrid throughout the winter season. Moreover, the expression of drought-responsive hexose transporters <i>VvHT1</i> and <i>VvHT5</i>, raffinose synthase <i>VvRS</i> and grapevine ABA-, Stress- and Ripening protein <i>VvMSA</i> was analyzed. The general increase in sugars in December and January suggests that they can participate in protecting bud tissues against low temperatures. The modulation of <i>VvHT5</i>, <i>VvINV</i> and <i>VvRS</i> appeared consistent with the availability of the different sugar species; challenging results were obtained for <i>VvHT1</i> and <i>VvMSA,</i> suggesting interesting hypotheses about their role in the sugar–hormone crosstalk. The multifaceted role of sugars on the intricate phenomenon, which is the response of dormant buds to changing temperature, is discussed. |
| first_indexed | 2024-03-09T04:17:07Z |
| format | Article |
| id | doaj.art-84375cee49374e08b87896ea249598bb |
| institution | Directory Open Access Journal |
| issn | 2223-7747 |
| language | English |
| last_indexed | 2024-03-09T04:17:07Z |
| publishDate | 2022-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Plants |
| spelling | doaj.art-84375cee49374e08b87896ea249598bb2023-12-03T13:51:49ZengMDPI AGPlants2223-77472022-04-01118102710.3390/plants11081027Insight into Carbohydrate Metabolism and Signaling in Grapevine Buds during Dormancy ProgressionValeria De Rosa0Rachele Falchi1Erica Moret2Giannina Vizzotto3Department of Agricultural, Food, Environmental and Animal Sciences, University of Udine, Via delle Scienze 206, 33100 Udine, ItalyDepartment of Agricultural, Food, Environmental and Animal Sciences, University of Udine, Via delle Scienze 206, 33100 Udine, ItalyDepartment of Agricultural, Food, Environmental and Animal Sciences, University of Udine, Via delle Scienze 206, 33100 Udine, ItalyDepartment of Agricultural, Food, Environmental and Animal Sciences, University of Udine, Via delle Scienze 206, 33100 Udine, ItalyPerennial fruit crops enter dormancy to ensure bud tissue survival during winter. However, a faster phenological advancement caused by global warming exposes bud tissue to a higher risk of spring frost damage. Tissue dehydration and soluble sugars accumulation are connected to freezing tolerance, but non-structural carbohydrates also act as metabolic substrates and signaling molecules. A deepened understanding of sugar metabolism in the context of winter freezing resistance is required to gain insight into adaptive possibilities to cope with climate changes. In this study, the soluble sugar content was measured in a cold-tolerant grapevine hybrid throughout the winter season. Moreover, the expression of drought-responsive hexose transporters <i>VvHT1</i> and <i>VvHT5</i>, raffinose synthase <i>VvRS</i> and grapevine ABA-, Stress- and Ripening protein <i>VvMSA</i> was analyzed. The general increase in sugars in December and January suggests that they can participate in protecting bud tissues against low temperatures. The modulation of <i>VvHT5</i>, <i>VvINV</i> and <i>VvRS</i> appeared consistent with the availability of the different sugar species; challenging results were obtained for <i>VvHT1</i> and <i>VvMSA,</i> suggesting interesting hypotheses about their role in the sugar–hormone crosstalk. The multifaceted role of sugars on the intricate phenomenon, which is the response of dormant buds to changing temperature, is discussed.https://www.mdpi.com/2223-7747/11/8/1027<i>Vitis</i> spp.climate changefreezing tolerance<i>VvMSA</i>raffinoseHPLC |
| spellingShingle | Valeria De Rosa Rachele Falchi Erica Moret Giannina Vizzotto Insight into Carbohydrate Metabolism and Signaling in Grapevine Buds during Dormancy Progression Plants <i>Vitis</i> spp. climate change freezing tolerance <i>VvMSA</i> raffinose HPLC |
| title | Insight into Carbohydrate Metabolism and Signaling in Grapevine Buds during Dormancy Progression |
| title_full | Insight into Carbohydrate Metabolism and Signaling in Grapevine Buds during Dormancy Progression |
| title_fullStr | Insight into Carbohydrate Metabolism and Signaling in Grapevine Buds during Dormancy Progression |
| title_full_unstemmed | Insight into Carbohydrate Metabolism and Signaling in Grapevine Buds during Dormancy Progression |
| title_short | Insight into Carbohydrate Metabolism and Signaling in Grapevine Buds during Dormancy Progression |
| title_sort | insight into carbohydrate metabolism and signaling in grapevine buds during dormancy progression |
| topic | <i>Vitis</i> spp. climate change freezing tolerance <i>VvMSA</i> raffinose HPLC |
| url | https://www.mdpi.com/2223-7747/11/8/1027 |
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