Delphinium delavayi

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Scientific/model-organism use:
Delphinium delavayi is employed in genetic and molecular studies of plant secondary metabolism. Researchers have generated transcriptomic data for D. delavayi, which are publicly accessible to support gene discovery and functional analysis. The species has been used to investigate the evolution of the delphinine biosynthetic pathway and to compare alkaloid profiles across Ranunculaceae, with results published in peer‑reviewed journals. In addition, D. delavayi is included in broader phylogenetic analyses of the family, helping to resolve relationships among genera and to map the distribution of alkaloid‑related genes. Seed and DNA voucher specimens of D. delavayi are preserved in national and international gene banks, providing permanent access for future genomic studies and comparative analyses within the family.

Properties relevant to use:
The aerial parts of D. delavayi contain high levels of the diterpenoid alkaloid delphinine, which can constitute up to several percent of dry weight in mature leaves and flowers. Delphinine is a C19‑diterpenoid alkaloid with a toxic, nitrogenous structure that makes the plant unsuitable for food or medicinal use without extensive processing. The flowers also accumulate anthocyanins, principally delphinidin‑based glycosides, which give the characteristic blue‑violet coloration and display good stability under acidic conditions, a property of interest for natural dye research. The plant’s vegetative tissue is fibrous, with a bast‑fiber component similar to that of other Ranunculaceae, but it is not exploited commercially for fiber, oil, gum, or resin production.

Sustainability and sourcing:
In its native range in southwestern China, D. delavayi grows in forest margins and alpine meadows and is not currently listed as threatened on the IUCN Red List. Local regulations protect wild populations, requiring permits for collection of seeds or plant material. Commercial production is limited; most ornamental and scientific material originates from cultivated stock propagated by seed or vegetative division in botanical gardens and private collections. Cultivation reduces harvest pressure on wild populations, and the species is subject to the same plant‑trade regulations as other non‑CITES‑listed ornamental perennials. Export of plant material requires phytosanitary certification under China’s Plant Quarantine Regulations, ensuring compliance with international trade standards.

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