Metabolic Response of the Lycium barbarum Variety 'Ningqi No. 7' to Drought Stress

has been widely planted in arid and semi-arid areas due to its drought-resistant ability, which is of great economic value as a medicinal and edible homology plant. In this study, the metabolome of the variety "Ningqi 7" under different drought stress conditions was compared and analyzed b...

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Bibliographic Details
Published in:Plants (Basel) 2024-07, Vol.13 (14), p.1935
Main Authors: Liu, Xiao, Wang, Chuanzhe, Xu, Qiao, Zhao, Dan, Liu, Fei, Han, Beibei
Format: Article
Language:English
Subjects:
Amino acids
Antioxidants
Aridity
Biosynthesis
Chromatography
Climate change
Cutin
Deserts
differential metabolite
Drought
Drought resistance
drought resistance mechanism
Energy metabolism
Enzymes
Flavonoids
High performance liquid chromatography
Homology
Liquid chromatography
Lycium barbarum
Lysine
Mass spectrometry
Mass spectroscopy
Medicinal plants
Medicine, Botanic
Medicine, Herbal
Metabolic response
Metabolism
Metabolites
Moisture content
Osmoregulation
Phenylalanine
Physiology
Principal components analysis
Quality control
Scientific imaging
Semi arid areas
Signal transduction
UPLC-MS
Vitamin B6
Water content
Water loss
Water shortages
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Summary:has been widely planted in arid and semi-arid areas due to its drought-resistant ability, which is of great economic value as a medicinal and edible homology plant. In this study, the metabolome of the variety "Ningqi 7" under different drought stress conditions was compared and analyzed by the non-targeted UPLC-MS (ultra-high performance liquid chromatography with mass spectrometry) technique. The results showed that drought stress significantly decreased the water content of leaves, increased the activity of antioxidant enzymes in plants, and up-regulated the metabolites and pathways involved in osmoregulation, antioxidant stress, energy metabolism, and signal transduction. Under moderate drought (40-45% FC), accumulated osmoregulatory substances mainly through the up-regulation of the arginine metabolism pathway. At the same time, phenylalanine metabolism and cutin, suberine, and wax biosynthesis were enhanced to improve the antioxidant capacity and reduce water loss. However, in severe drought (10-15% FC), shifted to up-regulate purine metabolism and lysine degradation and redistributed energy and nitrogen resources. In addition, vitamin B6 metabolism was significantly upregulated in both groups of stress levels, playing a key role in antioxidant and growth regulation. These observations delineate the metabolic adaptations of "Ningqi 7" in response to drought stress.
ISSN:2223-7747
2223-7747
DOI:10.3390/plants13141935