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园艺学报 ›› 2024, Vol. 51 ›› Issue (10): 2413-2426.doi: 10.16420/j.issn.0513-353x.2023-0872

• 栽培·生理生化 • 上一篇    下一篇

冠菌素对‘火焰无核’葡萄内源激素及花色苷合成关键酶活性的影响

麦斯乐1,2, 王艳蒙1,2, 朱学慧2, 韩守安2, 王敏2, 谢辉2, 杭林枫3, 张雯2,*()   

  1. 1 新疆农业大学园艺学院,乌鲁木齐 830052
    2 新疆农业科学院园艺作物研究所/农业农村部新疆地区果树科学观测试验站/新疆作物化学调控工程技术研究中心/新疆特色果蔬基因组研究与遗传改良重点实验室,乌鲁木齐 830091
    3 成都新朝阳作物科学股份有限公司,成都 611630
  • 收稿日期:2023-11-03 修回日期:2024-08-08 出版日期:2024-10-25 发布日期:2024-10-21
  • 通讯作者:
    *E-mail:
  • 基金资助:
    “天山英才”青年拔尖人才项目(2023TSYCCX0022); “天山英才”青年拔尖人才项目(2022TSYCCX0068); 现代农业产业技术体系建设专项资助(CARS-29-ZP-08); 新疆维吾尔自治区重点研发专项(2022B02045); 新疆维吾尔自治区重点研发专项(2022B02034); 新疆乌鲁木齐北疆葡萄种质资源与果园生态新疆野外科学观测研究站项目(XJYWZ2307); 国家自然科学基金项目(31460429); 新疆维吾尔自治区天山创新团队项目(2022D14014)

Effects of Coronatine on Endogenous Hormone Content and Activities of Key Anthocyanin Synthesis Enzymes in‘Flame Seedless’Grape Berry

MAI Sile1,2, WANG Yanmeng1,2, ZHU Xuehui2, HAN Shou’an2, WANG Min2, XIE Hui2, HANG Linfeng3, ZHANG Wen2,*()   

  1. 1 College of Horticulture,Xinjiang Agricultural University,Urumqi 830052,China
    2 Institute of Horticultural Crops,Xinjiang Academy of Agricultural Sciences/Scientific Observing and Experimental Station of Pomology(Xinjiang),Ministry of Agriculture and Rural Affairs/Xinjiang Crop Chemical Regulation Engineering Technology Research Center/Key Laboratory of Horticulture Crop Genomics Research and Genetic Improvement in Xinjiang,Urumqi 830091,China
    3 Chengdu Newsun Crop Science Co.,Ltd.,Chengdu 611630,China
  • Received:2023-11-03 Revised:2024-08-08 Published:2024-10-25 Online:2024-10-21

摘要:

以新疆主栽红色葡萄品种‘火焰无核’为试材,于果实转色初期(花后47 d)用新型植物生长调节剂冠菌素(coronatine,COR)不同浓度溶液进行蘸穗处理,研究其对果实品质、果皮花色苷、内源激素及花色苷合成关键酶活性的影响,以期探明COR促进葡萄果皮花色苷积累,改善果实着色的作用机制。研究结果表明,不同浓度COR处理均可以改善果实品质,显著提高果皮花色苷含量,提高部分时期生长素(IAA)、赤霉素(GA)、茉莉酸(JA)含量和转色后期脱落酸(ABA)含量,以及花色苷合成关键酶PAL、CHS、CHI、F3H、DFR、ANS和UFGT的活性,促进花色苷的合成积累,改善果实着色。其中COR稀释3 000倍处理效果最佳,花后57 d,与对照相比,总糖含量提高了12.34%,总有机酸含量降低了22.40%,固酸比提高了44.70%,花色苷含量提高了56.88%,JA含量提高了80.04%。相关性分析表明,JA含量与大多数时期的花色苷合成关键酶活性呈正相关,JA含量及关键酶活性与花色苷含量基本呈正相关。综合分析认为,果实转色初期外源COR处理主要通过促进果皮JA合成,进而提高花色苷合成关键酶活性,促进果皮花色苷合成,改善着色。

关键词: 葡萄, 着色, 冠菌素, 花色苷, 内源激素, 花色苷合成关键酶

Abstract:

‘Flame Seedless’grape,the main red grape cultivar in Xinjiang,was used as the test material in this study. To explore the mechanism of action of the plant growth regulator coronatine (COR)in promoting anthocyanin accumulation in grape peel and improving fruit coloring,it determined the effects of COR on fruit quality,anthocyanin,endogenous hormones,and the activity of key enzymes involved in anthocyanin synthesis. Three COR concentrations were prepared for solution dipping treatments in the early fruit color conversion stage(47 days after full blooming). The results showed that the treatment with all three concentrations of COR could improve fruit quality,significantly increase anthocyanin content in peel,and increase indoleacetic acid(IAA),gibberellin(GA),jasmonic acid (JA)content in some periods as well as the abscisic acid(ABA)content at the late stage of color conversion. The activities of key enzymes involved in anthocyanin synthesis,namely PAL,CHS,CHI,F3H,DFR,ANS,and UFGT,were increased,which promoted the synthesis and accumulation of anthocyanins and improved fruit coloring. Among the three treatments,the treatment with COR diluted 3 000 times yielded the excellent results. Compared with the control(water),the treatment with COR diluted 3 000 times exhibited 12.34% higher total soluble sugars content,22.40% lower total organic acids content,44.70% higher TSS/TA ratio,56.88% higher anthocyanin content,and 80.04% higher JA content. Correlation analysis showed that the JA content was positively correlated with the activity of key enzymes involved in anthocyanin synthesis in most periods,and both JA content and key anthocyanin synthesis enzyme activities were positively correlated with the anthocyanin content. Comprehensive analysis showed that COR treatment in the early stage of fruit coloration mainly promoted the synthesis of JA in berry,thereby increasing the activity of key enzymes involved in the anthocyanin synthesis pathway,which promoted anthocyanin synthesis in the peel and enhanced the appearance fruit color.

Key words: grape, coloring, coronatine, anthocyanin, endogenous hormone, key anthocyanin synthesis enzymes