Open AccessMetabolomic response of Perilla frutescens leaves, an edible-medicinal herb, to acclimatize magnesium oversupply
Author(s) -
Ha In Mun,
Yang Min Kim,
Dong Ho Suh,
Seulbi Lee,
Devendra Singh,
Eun Joo Jung,
Choong Hwan Lee,
Jwakyung Sung
Publication year - 2020
Publication title -
plos one
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.99
H-Index - 332
ISSN - 1932-6203
DOI - 10.1371/journal.pone.0236813
Subject(s) - perilla frutescens , perilla , antioxidant , herb , cinnamic acid , chemistry , shoot , chlorophyll , moringa , medicinal plants , plant physiology , botany , horticulture , biology , food science , medicinal herbs , traditional medicine , biochemistry , raw material , medicine , organic chemistry
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.