Phytotoxicity mechanisms of two coumarin allelochemicals from Stellera chamaejasme in lettuce seedlings | |
Department | 中科院西北特色植物资源化学重点实验室/甘肃省天然药物重点实验室 |
Yan ZQ(燕志强)1; Wang DD(王丹丹)1; Cui HY(崔海燕)2; Zhang DH(张等宏)3; Sun YH(孙玉合)4; Jin H(金辉)1; Li XZ(李秀壮)1; Yang XY(杨晓燕)1; Guo HR(郭鸿儒)1; He XF(何小凤)1; Pan L(潘乐)1; Ren X(任夏)1; Guo K(郭凯)1; Qin B(秦波)1; Qin B(秦波) | |
2016 | |
Source Publication | Acta Physiologiae Plantarum |
ISSN | 0137-5881 |
Volume | 38Issue:10Pages:248(1-10) |
Abstract | Stellera chamaejasme, a perennial weed which is an ecological threat, is widely distributed in some grasslands of Central and Eastern Asia. Our previous studies have identified several allelochemicals including two coumarins (umbelliferone and daphnoretin), from S. chamaejasme, and confirmed that allelopathy contributed to the competitive behavior of this weed. In this study, the inhibitory effects of umbelliferone and daphnoretin on lettuce seedlings and the mechanisms of their phytotoxicity were investigated. Results showed that shoot and root elongation and fresh weight of lettuce seedlings were effectively inhibited by umbelliferone in a concentration-dependent manner. Daphnoretin showed a weaker phytotoxicity. Both of the coumarins arrested the mitosis process in lettuce root tips and induced proline overproduction. Additionally, loss of cell viability and overproduction of reactive oxygen species in lettuce root cells were found after treatments with umbelliferone. Moreover, umbelliferone caused lipid peroxidation. These results suggested that umbelliferone displayed stronger phytotoxicity than daphnoretin on lettuce growth, and that the two coumarins had different mechanisms of phytotoxicity. That of daphnoretin was mainly dependent on its inhibitory effects on mitosis. Umbelliferone caused membrane lipid peroxide formation and cell death by inducing ROS overproduction, and impacted cell division, which resulted in growth inhibition of the receptor plant. |
Keyword | Cell Viability Daphnoretin Phytotoxicity Lettuce Mitosis Reactive Oxygen Species Umbelliferone |
Subject Area | 植物化学生态研究 |
DOI | 10.1007/s11738-016-2270-z |
Funding Organization | the National Natural Science Foundation of China (No. 31300290;21302195;31570354);CAS "Light of West China" Program;Agricultural Biotechnology Research and Development Program of Gansu Province (GNSW-2015-25);Cooperation Program to Gansu Province of Lanzhou Branch of the Chinese Academy of Sciences;the Open Project of Key Laboratory for Tobacco Gene Resources, Institute of Tobacco Research, Chinese Academy of Agricultural Sciences |
Indexed By | SCI |
If | 1.364 |
Language | 英语 |
Funding Project | 植物化学生态研究组 |
compositor | 第一作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/20377 |
Collection | 中科院西北特色植物资源化学重点实验室/甘肃省天然药物重点实验室 |
Corresponding Author | Qin B(秦波) |
Affiliation | 1.CAS Key Laboratory of Chemistry of Northwestern Plant Resources, Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences 2.School of Forensic Medicine, Shanxi Medical University 3.Enshi Academy of Agricultural Sciences 4.Key Laboratory for Tobacco Gene Resources, Institute of Tobacco Research, Chinese Academy of Agricultural Sciences |
Recommended Citation GB/T 7714 | Yan ZQ,Wang DD,Cui HY,et al. Phytotoxicity mechanisms of two coumarin allelochemicals from Stellera chamaejasme in lettuce seedlings[J]. Acta Physiologiae Plantarum,2016,38(10):248(1-10). |
APA | Yan ZQ.,Wang DD.,Cui HY.,Zhang DH.,Sun YH.,...&秦波.(2016).Phytotoxicity mechanisms of two coumarin allelochemicals from Stellera chamaejasme in lettuce seedlings.Acta Physiologiae Plantarum,38(10),248(1-10). |
MLA | Yan ZQ,et al."Phytotoxicity mechanisms of two coumarin allelochemicals from Stellera chamaejasme in lettuce seedlings".Acta Physiologiae Plantarum 38.10(2016):248(1-10). |
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