Chemical constituents of Rhododendron virgatum Hook and their chemotaxonomic significance

IF 1.4 4区生物学 Q4 BIOCHEMISTRY & MOLECULAR BIOLOGY

Biochemical Systematics and Ecology Pub Date : 2025-06-10 DOI:10.1016/j.bse.2025.105059

Gui-fang Li , Xin Wang , Hong-ying Chen , Shuai Huang , Lin Chen , Xian-li Zhou

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Abstract

Sixteen compounds were isolated from the whole plant of Rhododendron virgatum Hook by silica gel column chromatography and MCI column chromatography, including ten triterpenoids (1, 2, 4, 6, 8–11, 15, 16), one sterol (7), one flavonoid (12), one phenolic compound (13) and one phenylpropanoid compound (14), together with two unusual chromane derivatives (3 and 5). Structures of all compounds were identified by comprehensive analyses of physicochemical properties and NMR data. All compounds were isolated from R. virgatum for the first time. Among them, compounds 5, 14 and 16 were isolated from the genus Rhododendron for the first time. Additionally, the potential insecticidal activity of the isolated compounds was also evaluated in vitro by testing their inhibition rate against Sf9 cells. The significance of these compounds in chemotaxonomy was assessed through their chemical profiles and distribution across Rhododendron species.

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维加杜鹃的化学成分及其化学分类意义

通过硅胶柱层析和MCI柱层析，从维加杜鹃（Rhododendron virgatum Hook）全株中分离得到16个化合物，包括10个三萜（1,2,4,6,8 - 11,15,16），1个甾醇(7)，1个类黄酮（12），1个酚类化合物（13）和1个苯丙类化合物（14），以及2个罕见的铬衍生物（3和5）。所有化合物的结构通过物理化学性质和核磁共振数据的综合分析确定。所有化合物均为首次从该植物中分离得到。其中化合物5、14和16为首次从杜鹃属植物中分离得到。此外，还通过体外对Sf9细胞的抑制率来评价分离化合物的潜在杀虫活性。通过这些化合物的化学特征和在杜鹃属植物中的分布来评估它们在化学分类上的意义。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Biochemical Systematics and Ecology 生物-进化生物学

CiteScore

3.00

自引率

12.50%

发文量

147

审稿时长

43 days

期刊介绍： Biochemical Systematics and Ecology is devoted to the publication of original papers and reviews, both submitted and invited, in two subject areas: I) the application of biochemistry to problems relating to systematic biology of organisms (biochemical systematics); II) the role of biochemistry in interactions between organisms or between an organism and its environment (biochemical ecology). In the Biochemical Systematics subject area, comparative studies of the distribution of (secondary) metabolites within a wider taxon (e.g. genus or family) are welcome. Comparative studies, encompassing multiple accessions of each of the taxa within their distribution are particularly encouraged. Welcome are also studies combining classical chemosystematic studies (such as comparative HPLC-MS or GC-MS investigations) with (macro-) molecular phylogenetic studies. Studies that involve the comparative use of compounds to help differentiate among species such as adulterants or substitutes that illustrate the applied use of chemosystematics are welcome. In contrast, studies solely employing macromolecular phylogenetic techniques (gene sequences, RAPD studies etc.) will be considered out of scope. Discouraged are manuscripts that report known or new compounds from a single source taxon without addressing a systematic hypothesis. Also considered out of scope are studies using outdated and hard to reproduce macromolecular techniques such as RAPDs in combination with standard chemosystematic techniques such as GC-FID and GC-MS.