Xinjiang Agricultural Sciences ›› 2021, Vol. 58 ›› Issue (3): 540-546.DOI: 10.6048/j.issn.1001-4330.2021.03.017

• Horticultural Special Local Products·Plant Protection·Animal Husbandry Veterinarian·Microbes·Agroecological Environment • Previous Articles     Next Articles

The Relationship between the Anatomical Structure of Malus sieversii Branches and the Resistance to Agrilusmali

ZHANG Xiaoyan1, MEI Chuang2, YAN Peng2, Aisajan Mamat2, MA Kai2, HAN Liqun2, WANG Jixun2, DONG Lianxin1   

  1. 1. College of Forestry and Horticulture,Xinjiang Agricultural University,Urumqi 830052,China;
    2. Scientific Observing and Experimental Station of Pomology (Xinjiang),MOARA,P. R. China/ Research Institute of Horticultural Crops, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China
  • Received:2020-06-15 Online:2021-03-20 Published:2021-03-30
  • Correspondence author: DONG Lianxin (1963-), male, native of Jiangsu, associate professor, Ph.D., research direction is horticultural crop resources and breeding, (E-mail) dlx-xj@163.com
    MEI Chuang (1985-), male, born in Nanchong, Sichuan, associate researcher, PhD, research direction is fruit tree breeding and biotechnology, (E-mail) meichuangxj@163.com
  • Supported by:
    The National Natural Science Foundation of China(31960583);China Agriculture Research System (CARS-27); the Key R & D Project of Xinjiang Uyghur Autonomous Region(2018B01006-4)

新疆野苹果枝条解剖结构与苹果小吉丁虫抗性的关系

张小燕1, 梅闯2, 闫鹏2, 艾沙江·买买提2, 马凯2, 韩立群2, 王继勋2, 董连新1   

  1. 1.新疆农业大学林学与园艺学院,乌鲁木齐 830052;
    2.新疆农业科学院园艺作物研究所/农业部新疆地区果树科学观测试验站,乌鲁木齐 830091
  • 通讯作者: 董连新(1963-),男,江苏人,副教授,博士,研究方向为园艺作物资源与育种,(E-mail)dlx - xj@163.com
    梅闯(1985-),男,四川南充人,副研究员,博士,研究方向为果树育种与生物技术,(E-mail)meichuangxj@163.com
  • 作者简介:张小燕(1996-),女,贵州人,硕士研究生,研究方向为果树育种与生物技术,(E-mail)1121490851 @qq.com
  • 基金资助:
    国家自然科学基金(31960583);国家现代苹果产业技术体系建设专项(CARS-27);新疆维吾尔自治区重点研发计划(2018B01006-4)

Abstract: 【Objective】 To understand the relationship between the anatomical structure of Malus sieversii branches and the resistance to Agrilusmali and provide reference for the breeding and biological control of Malus sieversii.【Methods】 In this study, insect-resistant and sensitive plants of Malus sieversii were used as experimental materials.The internal anatomical characteristics of the Malus sieversii branches were observed with an optical microscope to explore the causes of the insect-resistant phenotype.【Result】 Under natural conditions, the anatomical structure of xylem of Malus sieversii branches was analyzed.The vessel density had a greater effect on insect resistance.The vessel density of insect-resistant plants was lower than that of sensitive plants, which were 136.2 and 163.1 n/μm2, respectively; xylem thickness and xylem ray width had little effect on insect resistance of Malus sieversii plants.From the anatomical structure of the bark of Malus sieversii, the thickness of the cortex and phloem of resistant and susceptible Malus sieversiiplants were significantly different.The phloem thickness of insect-resistant plants was lower than that of sensitive plants, which were 194.9 and 432.3 μm, respectively; Cortex thickness of insect-resistant plants was higher than that of sensitive plants, which were 1,282.9 and 1,037.7 μm, respectively; there was no significant difference in the thickness of periderm.【Conclusion】 The anatomical structure of Malus sieversii branches has a great influence on the resistance to insects.The smaller the density of the xylem vessel of the branches, the better the insect resistance; the lower the thickness of the phloem, the higher the thickness of the cortex, and the more obvious the phenotype with insect resistance.

Key words: Malus sieversii; Agrilusmali Mats; xylem; phloem; anatomical structure

摘要: 【目的】 研究新疆野苹果枝条解剖结构与苹果小吉丁虫抗性的关系,为新疆野苹果抗虫育种、生物防治提供参考。【方法】 以新疆野苹果抗虫植株和敏感植株为材料,研究光学显微镜观察野苹果枝条内部解剖特征,分析抗虫表型形成原因。【结果】 新疆野苹果枝条木质部解剖,导管密度对抗虫性的影响较大,抗虫植株的导管密度低于敏感植株,分别为136.2 和163.1 n/μm2;木质部厚度、木化射线宽度对新疆野苹果植株的抗虫性影响不大。新疆野苹果抗、感植株的皮层厚度及韧皮部厚度都存在显著差异,其中抗虫植株韧皮部厚度低于敏感植株,分别为194.9和432.3 μm;抗虫植株皮层厚度高于敏感植株,分别为1 282.9和1 037.7 μm;周皮厚度差异不显著。【结论】 新疆野苹果枝条木质部导管密度越小,抗虫性越好,韧皮部厚度越低,皮层厚度高,抗虫表型越明显。

关键词: 新疆野苹果, 苹果小吉丁虫, 木质部, 韧皮部, 解剖结构

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