Ecophysiological Responses of Triterpene Glycosides in Buds of Aralia elata (Miq.) Seem. to Late Spring Frost with Soil-Mediated Effects
Ning Wang, Dandan Zang, Wenbo Zhao, Yudong Sun, Wei Zhang, Yadong Duan
TL;DR
This study explores how late spring frost and soil properties affect triterpene glycosides in the buds of Aralia elata shrubs in Northeast China.
Contribution
The study identifies specific soil and climatic factors influencing triterpene glycoside levels in Aralia elata buds under late spring frost conditions.
Findings
Araloside VI is positively influenced by frost duration but negatively by temperature rise days.
Araloside V and 4-F8 are positively affected by temperature rise and lowest temperature but negatively by frost frequency.
Soil pH above 5.7 is recommended for higher triterpene glycoside levels in frost-prone regions.
Abstract
Late spring frost (LSF) poses a threat to temperate forest ecosystems; however, its combined effects with soil properties on triterpene glycosides in the buds of valuable shrubs are still unclear. In this study, natural Aralia elata (Miq.) Seem. populations were investigated in 15 counties in Heilongjiang and Jilin provinces in Northeast China. Buds were sampled in 3–5 cm length and used for determining triterpene glycosides (TGs) of Araloside VI, Araloside V, and 4-F8 (structural analogs) in spring of 2023. LSF in Heilongjiang showed longer days reaching 20 °C (CD20) (6.0 ± 2.5 d), LSF number (NLSF) (1.8 ± 0.5 times) and duration (DLSF) (21.5 ± 5.2 d), and days of temperature rise (DTR) (15.9 ± 3.8 d) compared to Jilin (4.4 ± 0.4 d, 1.2 ± 0.4 times, 17.4 ± 3.9 d, 12.0 ± 3.3 d, respectively). Araloside VI (0.30–0.59%) was positively driven by DLSF but negatively driven by DTR. Araloside…
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Taxonomy
TopicsNatural product bioactivities and synthesis · Agronomic Practices and Intercropping Systems · Plant Stress Responses and Tolerance