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Integrative analysis on insect-resistant characteristics and widely targeted metabolic differences of Malus sieversii

文献类型： 外文期刊

作者： Mei, Chuang 1 ; Zhang, Xiaoyan 2 ; Yan, Peng 1 ; Mamat, Aiajan 1 ; Han, Liqun 1 ; Ma, Kai 1 ; Zhong, Haixia 1 ; Wang, Jixun 1 ;

作者机构： 1.Xinjiang Acad Agr Sci, Sci Observing & Expt Stn Pomol Xinjiang, Minist Agr, Inst Hort Crops, Urumqi 830091, Peoples R China

2.Xinjiang Agr Univ, Coll Forestry & Hort, Urumqi 830052, Peoples R China

关键词： Malus sieversii; Agrilus mali Matsumura; anatomical structure; metabolism

期刊名称：EUROPEAN JOURNAL OF HORTICULTURAL SCIENCE （ 影响因子：0.9； 五年影响因子：1.4 ）

ISSN： 1611-4426

年卷期： 2022 年 87 卷 5 期

页码：

收录情况： SCI

摘要： Agrilus mali Matsumura is a devastating pest of Malus sieversii. According to our previous research, this wild apple single plant is resistant to pest infestation. In this study, differences in internal anatomical structures of plant branches using paraffin sections were observed. Meanwhile, the metabolic differences between resistant and sensitive strains, the expression of key synthetic genes in biosynthetic pathways such as phenylpropane and flavonoids, and key enzyme activity were analyzed by a wildly targeted UPLC-MS/MS based metabolomics study. Optical microstructure analysis showed that the vessel density and phloem thickness of the resistant strains of Malus sieversii were significantly lower than those of the sensitive strains. Metabolome analysis showed that a total of 518 metabolites were detected in sensitive and resistant strains, of which 123 were differential metabolites, 80 metabolites were up-regulated, and 43 metabolites were down-regulated. KEGG pathway analysis showed that these metabolites were mainly involved in secondary metabolism, phenylpropane and flavonoids and other metabolic pathways related to pest defense. These findings provide useful information for the study of the molecular mechanism of interaction between Agrilus mali Matsumura and Malus sieversii.

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