文献类型： 外文期刊

作者： Guo, Chenglin ¹ ; Qin, Liuyan ² ; Ma, Yongling ¹ ; Qin, Jianlin ¹ ;

作者机构： 1.Minist Agr & Rural Affairs, Guangxi Key Lab Biol Crop Dis & Insect Pests, Key Lab Green Prevent & Control Fruits & Vegetabl, Plant Protect Res Inst,Guangxi Acad Agr Sci, Nanning 530007, Peoples R China

2.Guangxi Acad Agr Sci, Biotechnol Res Inst, Nanning 530007, Peoples R China

关键词： Cuscuta japonica Choisy; Host plant; Non-host plant; Parasitism; Metabolome; Transcriptome; Phenylpropanoid biosynthesis

期刊名称：BMC PLANT BIOLOGY （ 影响因子：5.26； 五年影响因子：5.761 ）

ISSN： 1471-2229

年卷期： 2022 年 22 卷 1 期

页码：

收录情况： SCI

摘要： Background Cuscuta japonica Choisy (Japanese dodder) is a parasitic weed that damages many plants and affects agricultural production. The haustorium of C. japonica plays a key role during parasitism in host plants; in contrast, some non-host plants effectively inhibit its formation. However, the metabolic differences between normal dodder in host plants and dodder inhibition in non-host plants are largely unknown. Here, we utilized an integrative analysis of transcriptomes and metabolomes to compare the differential regulatory mechanisms between C. japonica interacting with the host plant Ficus microcarpa and the non-host plant Mangifera indica. Results After parasitization for 24 h and 72 h, the differentially abundant metabolites between these two treatments were enriched in pathways associated with alpha-linolenic acid metabolism, linoleic acid metabolism, phenylpropanoid biosynthesis, and pyrimidine metabolism. At the transcriptome level, the flavor biosynthesis pathway was significantly enriched at 24 h, whereas the plant-pathogen interaction, arginine and proline metabolism, and MARK signaling-plant pathways were significantly enriched at 72 h, based on the differentially expressed genes between these two treatments. Subsequent temporal analyses identified multiple genes and metabolites that showed different trends in dodder interactions between the host and non-host plants. In particular, the phenylpropanoid biosynthesis pathway showed significant differential regulation between C. japonica in host and non-host plants. Conclusions These results provide insights into the metabolic mechanisms of dodder-host interactions, which will facilitate future plant protection from C. japonica parasitism.