Labdane diterpenoids from the heartwood of Leucosceptrum canum that impact on root growth and seed germination of Arabidopsis thaliana
文献类型：期刊论文
| 作者 | Liu,Yan; Zhou,Yan-Ying; Luo,Shi-Hong; Guo,Kai; Zhang,Man-Wen; Jing,Shu-Xi; Li,Chun-Huan; Hua,Juan; Li,Sheng-Hong
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| 刊名 | PHYTOCHEMISTRY
 |
| 出版日期 | 2023 |
| 卷号 | 206页码:113531 |
| 关键词 | Leucosceptrum canum Lamiaceae Labdane diterpenoids Leucolactones A-K Phytotoxic activity Auxin accumulation GLANDULAR TRICHOMES COLORED NECTAR AUXIN TRANSPORT GRADIENT WOOD |
| ISSN号 | 1873-3700 |
| DOI | 10.1016/j.phytochem.2022.113531 |
| 英文摘要 | Eleven undescribed diterpenoids possessing labdane, 3,18-cyclo-labdane, 19 (4 -> 3)-labdane and 12-nor-labdane skeletons, named leucolactones A-K, were isolated from the heartwood of a large woody Lamiaceae plant, Leucosceptrum canum. Their structures were determined by NMR, MS, and in the case of leucolactones A by single crystal X-ray diffraction analysis. Plausible biosynthetic pathway of leucolactones were proposed. Leucolactones showed significant inhibitory effects against seed germination and root elongation of Arabidopsis thaliana in the Petri dish bioassay. Among them, the diastereomeric leucolactones G and H were the most potent, with EC50 values for root elongation of 6.53 +/- 1.35 and 9.75 +/- 1.25 mu M, respectively. The preliminary structure-activity relationship of leucolactones was discussed. The increase of auxin reporter activity in A. thaliana DR5::GUS roots by leucolactone H was observed, indicating that leucolactones altered auxin accumulation and distribution. These findings suggested that leucolactones might be involved in regulation of plant growth and development through altering auxin accumulation and distribution, presumably contributing to the heartwood formation in L. canum. |
| 学科主题 | Biochemistry & Molecular Biology ; Plant Sciences |
| WOS记录号 | WOS:000903504400013 |
| 源URL | [http://ir.kib.ac.cn/handle/151853/75431]  |
| 专题 | 中国科学院昆明植物研究所 |
| 推荐引用方式 GB/T 7714 | Liu,Yan,Zhou,Yan-Ying,Luo,Shi-Hong,et al. Labdane diterpenoids from the heartwood of Leucosceptrum canum that impact on root growth and seed germination of Arabidopsis thaliana[J]. PHYTOCHEMISTRY,2023,206:113531. |
| APA | Liu,Yan.,Zhou,Yan-Ying.,Luo,Shi-Hong.,Guo,Kai.,Zhang,Man-Wen.,...&Li,Sheng-Hong.(2023).Labdane diterpenoids from the heartwood of Leucosceptrum canum that impact on root growth and seed germination of Arabidopsis thaliana.PHYTOCHEMISTRY,206,113531. |
| MLA | Liu,Yan,et al."Labdane diterpenoids from the heartwood of Leucosceptrum canum that impact on root growth and seed germination of Arabidopsis thaliana".PHYTOCHEMISTRY 206(2023):113531. |
入库方式： OAI收割
来源：昆明植物研究所
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