ArticleJournal of plant research2022
Transcriptome revealing the dual regulatory mechanism of ethylene on the rhynchophylline and isorhynchophylline in Uncaria rhynchophylla.
Article in Journal of plant research, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed, 21 citations in OpenAlex.
- The genome of the medicinal plant Uncaria rhynchophylla provides new insights into monoterpenoid indole alkaloid metabolism and its molecular regulatory mechanism.Molecular horticulture · 2026Article
- A sterile plant culture system ofPlant biotechnology (Tokyo, Japan) · 2025Article
- Identification of critical transition signal (CTS) to characterize regulated stochasticity during ABA-induced growth-to-defense transition.BMC plant biology · 2025Article
- Phytochrome interacting factor 3 mediates low light signaling to regulate isorhynchophylline biosynthesis in Uncaria rhynchophylla.Scientific reports · 2024Article
- Exogenous ethephon treatment on the biosynthesis and accumulation of astragaloside IV in Astragalus membranaceus Bge. Var. Mongholicus (Bge.) Hsiao.Botanical studies · 2024Article
- Recent advances in understanding the regulation of plant secondary metabolite biosynthesis by ethylene-mediated pathways.Physiology and molecular biology of plants : an international journal of functional plant biology · 2024Review
- Profiles of Metabolic Genes inBiomolecules · 2022Article
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Authors and funding
6 authors at 1 institution in 1 country.
Funding
Abstract
Rhynchophylline (RIN) and isorhynchophylline (IRN) are extracted from Uncaria rhynchophylla, which are used to treat Alzheimer's disease. However, the massive accumulation of RIN and IRN in U. rhynchophylla requires exogenous stimulation. Ethylene is a potential stimulant for RIN and IRN biosynthesis, but there is no study on the role of ethylene in RIN or IRN synthesis. This study investigated the regulation of ethylene in RIN and IRN biosynthesis in U. rhynchophylla. An increase in the content of RIN and IRN was observed that could be attributed to the release of ethylene from 18 mM ethephon, while ethylene released from 36 mM ethephon reduced the content of RIN and IRN. The transcriptome and weighted gene co-expression network analysis indicated the up-regulation of seven key enzyme genes related to the RIN/IRN biosynthesis pathway and starch/sucrose metabolism pathway favored RIN/IRN synthesis. In comparison, the down-regulation of these seven key enzyme genes contributed to the reduction of RIN/IRN. Moreover, the inhibition of photosynthesis is associated with a reduction in RIN/IRN. Photosynthesis was restrained owing to the down-regulation of Lhcb1 and Lhcb6 after 36 mM ethephon treatment and further prevented supply of primary metabolites (such as α-D-glucose) for RIN/IRN synthesis. However, uninterrupted photosynthesis ensured a normal supply of primary metabolites at 18 mM ethephon treatment. AP2/ERF1, bHLH1, and bHLH2 may positively regulate the RIN/IRN accumulation, while NAC1 may play a negative regulatory role. Our results construct the potential bidirectional model for ethylene regulation on RIN/IRN synthesis and provide novel insight into the ethylene-mediated regulation of the metabolism of terpenoid indole alkaloids.
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