Journal of Nuclear Agricultural Sciences ›› 2022, Vol. 36 ›› Issue (2): 466-472.DOI: 10.11869/j.issn.100-8551.2022.02.0466

• Isotope Tracer Technique·Ecology and Environment·Physiology • Previous Articles     Next Articles

Impact of Piriformospora indica on the Yield, Quality and Postharvest Disease Resistance of Fruit in Cherry Tomato

WANG Huili1(), ZHENG Xiaodong2,*()   

  1. 1Department of Art, Zhejiang Vocational College of Special Education, Hangzhou, Zhejiang 310023
    2Institute of Food Biotechnology, Zhejiang University, Hangzhou, Zhejiang 310058
  • Received:2021-05-17 Accepted:2021-08-11 Online:2022-02-10 Published:2022-01-17
  • Contact: ZHENG Xiaodong

印度梨形孢对樱桃番茄产量、品质及采后抗性的影响

王慧俐1(), 郑晓冬2,*()   

  1. 1浙江特殊教育职业学院艺术系,浙江 杭州 310023
    2浙江大学食品生物科学技术研究所,浙江 杭州 310058
  • 通讯作者: 郑晓冬
  • 作者简介:王慧俐,女,副教授,主要从事果蔬生物防治与特殊教育研究。E-mail: wanghl188@126.com
  • 基金资助:
    “十三五”国家重点研发计划(2016YFD0401201);国家自然科学基金项目(31571897);浙江特殊教育职业学院教学创新团队(XJTD202001)

Abstract:

The seedlings of cherry tomato Hangza No.5 cultivar were chosen to inoculate the root endophytic fungus, Piriformospora indica (P. indica) in pot culture under greenhouse to study the effects of P. indica inoculation on the total yield, fruit quality and postharvest disease resistance. The total yield, natural decay rate, resistance to the pathogen and quality changes during storage were determined when the fruit reached maturity. The results showed that P. indica inoculation had no significant effect on the total yield of cherry tomatoes, but it could improve the fruit quality,including increasing the content of soluble protein and vitamin C in fruit by 0.03 mg·g-1and 3.9 mg·100g-1, respectively. Meanwhile, it could delay the decrease of fruit firmness, vitamin C and soluble protein content during storage, as well as increase postharvest disease resistance of the fruits. The incidence of natural decay, black spot and gray mold decreased by 25.0, 20.0 and 17.5 points compared with the control, respectively. The possible mechanism of disease resistance in the fruit induced by P. indica inoculation at seedling stage include improving the postharvest fruit quality, reducing the softening rate of the fruit, and then delaying the process of fruit maturation and senescence, and activating resistance-related enzymatic activity, peroxidase(POD) and polyphenol oxidase(PPO) activity mainly, during storage. These results offer a theoretical basis for the application of P.indica in the production of cherry tomato.

Key words: Piriformospora indica, cherry tomato, fruit quality, disease resistance

摘要:

为探讨内生真菌印度梨形孢(Piriformospora indica)对樱桃番茄(Lycopersicon esculentum Mill.)产量、品质及采后抗性的影响,本研究以杭杂5号樱桃番茄幼苗为试验材料,于温室大棚盆栽条件下在植株根部接种印度梨形孢,待果实成熟时测定果实的产量、自然腐烂率、对病原菌的抗性及贮藏期的品质变化。结果表明,苗期植株接种印度梨形孢对樱桃番茄总产量无显著影响,但能提高樱桃番茄果实品质,果实可溶性蛋白含量、维生素C含量分别比对照高0.03 mg·g-1和3.9 mg·100g-1;能延缓贮藏期果实硬度、维生素C和可溶性蛋白含量的下降;能提高果实的采后抗性,果实采后自然腐烂率、黑斑病和灰霉病的发病率分别比对照降低了25.0、20.0和17.5个百分点。苗期接种印度梨形孢诱导果实抗性的可能机制包括提高了果实的采后品质,降低了果实软化速度从而延缓了果实成熟衰老的进程,激活了贮藏期间与抗性相关的过氧化物酶(POD)和多酚氧化酶(PPO)的活性。本研究结果为印度梨形孢在樱桃番茄生产上的应用提供了理论基础。

关键词: 印度梨形孢, 樱桃番茄, 果实品质, 抗病性