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Suppression of red color development associated with anthocyanin accumulation in the epicarp of grape (Vitis labrusca x vinifera cv. Ruby Roman) berries caused by air temperature in daylight periods higher than 33 degrees C during maturation
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| Title: | Suppression of red color development associated with anthocyanin accumulation in the epicarp of grape (Vitis labrusca x vinifera cv. Ruby Roman) berries caused by air temperature in daylight periods higher than 33 degrees C during maturation |
| Authors: | Matsuda, Kenichi Browse this author | | Gao-Takai, Mei Browse this author | | Date, Ayaka Browse this author | | Suzuki, Takashi Browse this author →KAKEN DB |
| Keywords: | Color chart | | Degree of color density | | Fruit maturation | | HPLC | | Spot-cooling system |
| Issue Date: | 15-Oct-2021 |
| Publisher: | Elsevier |
| Journal Title: | Scientia horticulturae |
| Volume: | 288 |
| Start Page: | 110381 |
| Publisher DOI: | 10.1016/j.scienta.2021.110381 |
| Abstract: | The effect of high air temperature on the anthocyanin accumulation in the epicarp of 'Ruby Roman' grape (Vitis labruscana x vinifera) berries was examined. Seventeen types of anthocyanin were detected from the epicarp tissue of the matured berries using HPLC. Since a strong positive correlation (P < 0.005, R-2 = 0.937) was confirmed between the degree of color density evaluated using a color chart and the total content of anthocyanins quantified separately, it seems possible to trace anthocyanin accumulation using the color chart on each berry during maturation at different air temperatures. Four conditions were designed for cooling the fruit clusters with a spot-cooling system, which can keep air temperature 4-5 degrees C lower for 60-70 days after the full-bloom, i.e. consecutive (0:00-24:00) cooling, daytime (6:00-18:00) cooling, nighttime (18:00-6:00) cooling and no-cooling (control). The degree of color density showed statistically higher (P < 0.05) values in the consecutive-cooling treatment than that of the control through the post-cooling duration (0-15 days after cooling). To clarify the effect of temperature zones with or without daylight on the anthocyanin accumulation in the epicarp, percentage of exposure time to each temperature zone of < 21, 21-24, 24-27, 27-30, 30-33, 33-36 and 36 degrees C <= were calculated for both daylight and dark periods, separately. Correlations of the Delta time% (the amount of difference in percentage of exposure time from the control) with the Delta color degree (the amount of difference in degree of color density from the control) in the daylight period were positive at temperature zones of < 30 degrees C, but turned to negative at those of 30 degrees C <=. The fact that correlation coefficient was statistically significant (P < 0.05) at the temperature zones of 27-30 degrees C (positive) and 33-36 degrees C (negative) in the daylight period shows that the threshold where the anthocyanin accumulation starts to be suppressed exists within 30-33 degrees C. |
| Rights: | © 2021. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/ | | https://creativecommons.org/licenses/by-nc-nd/4.0/ |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/90551 |
| Appears in Collections: | 農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 鈴木 卓
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