Metabolomic response of Perilla frutescens leaves, an edible-medicinal herb, to acclimatize magnesium oversupply

High salt accumulation, resulting from the rampant use of chemical fertilizers in greenhouse cultivation, has deleterious effects on plant growth and crop yield. Herein, we delineated the effects of magnesium (Mg) oversupply on Perilla frutescens leaves, a traditional edible and medicinal herb used...

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Bibliographic Details
Published in:PloS one 2020-07, Vol.15 (7), p.e0236813-e0236813
Main Authors: Mun, Ha In, Kim, Yangmin X, Suh, Dong Ho, Lee, Seulbi, Singh, Digar, Jung, Eun Sung, Lee, Choong Hwan, Sung, Jwakyung
Format: Article
Language:English
Subjects:
Abiotic stress
Acclimatization
Agricultural production
Agrochemicals
Amino acids
Antifungal agents
Antioxidants
Biology and Life Sciences
Biotechnology
Botanical research
Carbohydrates
Chlorophyll
Chlorophyll content
Cinnamic acid
Correlation analysis
Crop yield
Cultivation
Environmental aspects
Fertilizers
Flavonoids
Greenhouse effect
Greenhouses
Harvest
Herbal medicine
Herbs
Hydrochloric acid
Lamiaceae
Leaves
Magnesium
Magnesium (Nutrient)
Medicinal plants
Metabolism
Metabolites
Metabolomics
Perilla frutescens
Phenotypes
Physical Sciences
Physiological aspects
Physiology
Phytochemicals
Plant acclimatization
Plant growth
Relative abundance
Rural development
Salinity
Sodium
Solutes
Triterpenoids
Water shortages
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Summary:High salt accumulation, resulting from the rampant use of chemical fertilizers in greenhouse cultivation, has deleterious effects on plant growth and crop yield. Herein, we delineated the effects of magnesium (Mg) oversupply on Perilla frutescens leaves, a traditional edible and medicinal herb used in East-Asian countries. Mg oversupply resulted in significantly higher chlorophyll content coupled with lower antioxidant activities and growth, suggesting a direct effect on subtle metabolomes. The relative abundance of bioactive phytochemicals, such as triterpenoids, flavonoids, and cinnamic acids, was lower in the Mg-oversupplied plants than in the control. Correlation analysis between plant phenotypes (plant height, total fresh weight of the shoot, leaf chlorophyll content, and leaf antioxidant content) and the altered metabolomes in P. frutescens leaves suggested an acclimatization mechanism to Mg oversupply. In conclusion, P. frutescens preferentially accumulated compatible solutes, i.e., carbohydrates and amino acids, to cope with higher environmental Mg levels, instead of employing secondary and antioxidative metabolism.
ISSN:1932-6203
1932-6203
DOI:10.1371/journal.pone.0236813