Integrated Metabolome and Transcriptome Analysis Unveils the Underlying Molecular Response of Panax ginseng Plants to the Phytophthora cactorum Infection

Hong Kan (), Shuai Qu, Kai Dong, Shihan Wang, Chen Xu, Yingping Wang () and Shuang Hua ()
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Hong Kan: Institute of Special Animal and Plant Sciences, Chinese Academy of Agricultural Sciences, 4899 Juye Street, Changchun 130112, China
Shuai Qu: Biology Institute of Jilin Province, 1244 Qianjin Street, Changchun 130012, China
Kai Dong: National Germplasm Resources Observation Laboratory Station (Changchun), College of Chinese Medicinal Materials, Jilin Agricultural University, 2888 Xincheng Street, Changchun 130118, China
Shihan Wang: National Germplasm Resources Observation Laboratory Station (Changchun), College of Chinese Medicinal Materials, Jilin Agricultural University, 2888 Xincheng Street, Changchun 130118, China
Chen Xu: National Germplasm Resources Observation Laboratory Station (Changchun), College of Chinese Medicinal Materials, Jilin Agricultural University, 2888 Xincheng Street, Changchun 130118, China
Yingping Wang: National Germplasm Resources Observation Laboratory Station (Changchun), College of Chinese Medicinal Materials, Jilin Agricultural University, 2888 Xincheng Street, Changchun 130118, China
Shuang Hua: College of Traditional Chinese Medicine, Jilin Agricultural Science and Technology University, 1 Xuefu Road, Jilin 132109, China

Agriculture, 2023, vol. 13, issue 2, 1-23

Abstract: Due to at least 3 years of cultivation, Panax ginseng (ginseng) is susceptible to being attacked by pathogens which severely affect its quality and yield. Compared with other diseases of ginseng, Phytophthora blight caused by Phytophthora cactorum ( P. cactorum ) can spread rapidly and destroy almost the entire plant of ginseng, such as leaves, stems, and roots. However, little research was focused on this area, and how P. cactorum affected the metabolic profile of ginseng is still obscure. In the current study, we conducted a comprehensive analysis of metabolomics and transcriptomics to compare the differences in health and P. cactorum -affected ginseng leaves and stems. Metabolome analysis revealed that 110 and 113 significant differential metabolites were observably disturbed separately in ginseng leaves and stems. Transcriptome analysis demonstrated that 6424 and 9508 genes had remarkable variation in ginseng leaves and stems. Using conjoint analysis, we also revealed the changes in pathways “Alanine, aspartate and glutamate metabolism”, “Glycine, serine and threonine metabolism”, and “Biosynthesis of unsaturated fatty acids” and “Plant hormone signal transduction” in ginseng response to the P. cactorum . The current work provides an overview of the alteration of metabolic profile and gene expression profiles in ginseng leaves and stems in response to P. cactorum affection, which may help to further screen out the mechanism of plant-pathogen interaction at the molecular level.

Keywords: Panax ginseng; oomycetes; Phytophthora blight; metabolome; transcriptome (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2023
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