首页> 外文期刊>Food Chemistry >The roles of ROS production-scavenging system in Lasiodiplodia theobromae (Pat.) Griff. & Maubl.-induced pericarp browning and disease development of harvested longan fruit
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The roles of ROS production-scavenging system in Lasiodiplodia theobromae (Pat.) Griff. & Maubl.-induced pericarp browning and disease development of harvested longan fruit

机译:ROS产生清除系统在Lasiodiplodia theobromae(Pat。)Griff中的作用。和Maubl。引起的龙眼果皮果皮褐变和病情发展

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摘要

Effects of Lasiodiplodia theobromae on reactive oxygen species (ROS) production-scavenging system during L. theobromae-induced pericarp browning and disease development of harvested "Fuyan" longans were investigated. Compared with control longans, L. theobromae-inoculated longans exhibited higher pericarp browning index and fruit disease index, higher pericarp O-2(-center dot) generation rate and MDA content. Moreover, L. theobromae infection also resulted in lower contents of pericarp AsA and GSH, lower levels of pericarp DPPH radical scavenging ability and reducing power. Additionally, L. theobromae infection decreased the activities of pericarp SOD, CAT and APX from day 2 to day 5. These findings suggested that L. theobromae-induced pericarp browning and disease development of harvested longans might be due to reduction of ROS scavenging ability and increase in ROS production, which might stimulate membrane lipid peroxidation, disrupt cellular membrane structure, and cause the loss of cellular compartmentalization and disease resistance, in turn, resulting in pericarp browning and disease development.
机译:研究了Lasiodiplodia theobromae对L. theobromae诱导的果皮褐变和收获的“ Fuyan”龙眼疾病发展过程中活性氧(ROS)产生-清除系统的影响。与对照龙眼相比,接种Theobromae的龙眼表现出更高的果皮褐变指数和果实病指数,更高的果皮O-2(中心点)生成率和MDA含量。此外,Theobromae感染还导致果皮AsA和GSH含量降低,果皮DPPH自由基清除能力降低,功率降低。另外,从第2天到第5天,Theobromae感染会降低果皮SOD,CAT和APX的活性。这些发现表明,L。theobromae引起的果皮褐变和收获龙眼的疾病发展可能是由于ROS清除能力降低和ROS产生的增加,可能会刺激膜脂质过氧化,破坏细胞膜结构,并引起细胞区室化和抗病性的丧失,进而导致果皮褐变和疾病发展。

著录项

  • 来源
    《Food Chemistry》 |2018年第may1期|16-22|共7页
  • 作者单位

    Fujian Agr & Forestry Univ, Inst Postharvest Technol Agr Prod, Coll Food Sci, Fuzhou 350002, Fujian, Peoples R China;

    Fujian Agr & Forestry Univ, Inst Postharvest Technol Agr Prod, Coll Food Sci, Fuzhou 350002, Fujian, Peoples R China;

    Fujian Agr & Forestry Univ, Inst Postharvest Technol Agr Prod, Coll Food Sci, Fuzhou 350002, Fujian, Peoples R China;

    Fujian Agr & Forestry Univ, Inst Postharvest Technol Agr Prod, Coll Food Sci, Fuzhou 350002, Fujian, Peoples R China;

    Fujian Agr & Forestry Univ, Inst Postharvest Technol Agr Prod, Coll Food Sci, Fuzhou 350002, Fujian, Peoples R China;

    Univ Missouri, Div Food Syst & Bioengn, Food Sci Program, Columbia, MO 65211 USA;

    Univ Georgia, Dept Food Sci & Technol, 1109 Expt St, Griffin, GA 30223 USA;

    Fujian Agr & Forestry Univ, Inst Postharvest Technol Agr Prod, Coll Food Sci, Fuzhou 350002, Fujian, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Longan (Dimocarpus longan Lour.) fruit; Pericarp browning; Disease development; Active oxygen metabolism; Reactive oxygen species (ROS); ROS scavenging capacity; Lasiodiplodia theobromae (Pat.) Griff. Maubl.;

    机译:龙眼(Dimocarpus longan Lour。);果皮褐变;疾病发展;活性氧代谢;活性氧(ROS);清除能力;Lasiodiplodia theobromae(Pat。)Griff。 &Maubl。;
  • 入库时间 2022-08-17 23:19:43

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