The influence of low-vacuum helium cold plasma treatment on the rooting percentage,root growth and physiochemical properties of zoysiagrass stolon cuttings was studied.Zoysiagrass stolon cuttings were pre-treated with...The influence of low-vacuum helium cold plasma treatment on the rooting percentage,root growth and physiochemical properties of zoysiagrass stolon cuttings was studied.Zoysiagrass stolon cuttings were pre-treated with 0,100,200,300 and 400 W of cold plasma for 15 s.The cold plasma positively stimulated rooting and improved the root growth of the zoysiagrass stolon cuttings,and the 300 W treatment produced the best effect.The rooting percentage and root growth parameters,including the root length,total root surface area,total root volume,average root diameter,and root dry weight,significantly improved in response to the cold plasma treatment.In addition,the water uptake and relative conductivity of the stolon cuttings increased significantly in response to the cold plasma treatment.The results revealed that cold plasma-stimulated rooting and root growth appear to be a consequence of the improvement in permeability and water absorbing capacity of zoysiagrass stolon cuttings.The results of the present study will provide inspiration and support for the application of cold plasma in the vegetative propagation of plants.展开更多
目的研究东方草莓Fragaria orientalis Losinsk匍匐茎的化学成分及其神经活性。方法东方草莓匍匐茎80%乙醇提取物采用硅胶、ODS、Sephadex LH-20、半制备HPLC进行分离纯化,根据理化性质及波谱数据鉴定所得化合物的结构。采用6-OHDA诱导...目的研究东方草莓Fragaria orientalis Losinsk匍匐茎的化学成分及其神经活性。方法东方草莓匍匐茎80%乙醇提取物采用硅胶、ODS、Sephadex LH-20、半制备HPLC进行分离纯化,根据理化性质及波谱数据鉴定所得化合物的结构。采用6-OHDA诱导的PC12细胞评价其神经保护活性。结果从中分离得到18个化合物,分别鉴定为meliasendanin D(1)、双酚A(2)、阿魏酸十六烷基酯(3)、octadecyl ferulate(4)、eicosanyl ferulate(5)、piceine(6)、香草酸(7)、反式肉桂酸(8)、顺式肉桂酸(9)、虹彩内酯(10)、ethylβ-D-xylopyranoside(11)、β-谷甾醇(12)、(9Z,12Z,15Z)-9,12,15-十八碳三烯酸(13)、(9Z,12Z,15Z)-9,12,15-十八碳三烯酸甲酯(14)、(9Z,12Z,15Z)-9,12,15-十八碳三烯酸乙酯(15)、(9Z,12Z)-9,12-十八碳二烯酸(16)、(9Z,12Z)-9,12-十八碳二烯酸甲酯(17)、(9Z,12Z)-9,12-十八碳二烯酸乙酯(18)。化合物1、5~8、10、11能升高6-OHDA诱导的PC12细胞存活率,其中化合物6、10最为显著,分别升高了11.8%、12.9%。结论化合物1~11、13~18均为首次从该植物中分离得到。化合物1、5~8、10、11具有神经保护活性。展开更多
基金supported by the Jiangsu Provincial Public Institutions Program for Research Conditions and Building Capacity(No.BM2015019)the Foundation of Jiangsu Key Laboratory for the Research and Utilization of Plant Resources(Institute of Botany,Jiangsu Province and Chinese Academy of Sciences,No.JSPKLB201606)National Natural Science Foundation of China(No.31572155)
文摘The influence of low-vacuum helium cold plasma treatment on the rooting percentage,root growth and physiochemical properties of zoysiagrass stolon cuttings was studied.Zoysiagrass stolon cuttings were pre-treated with 0,100,200,300 and 400 W of cold plasma for 15 s.The cold plasma positively stimulated rooting and improved the root growth of the zoysiagrass stolon cuttings,and the 300 W treatment produced the best effect.The rooting percentage and root growth parameters,including the root length,total root surface area,total root volume,average root diameter,and root dry weight,significantly improved in response to the cold plasma treatment.In addition,the water uptake and relative conductivity of the stolon cuttings increased significantly in response to the cold plasma treatment.The results revealed that cold plasma-stimulated rooting and root growth appear to be a consequence of the improvement in permeability and water absorbing capacity of zoysiagrass stolon cuttings.The results of the present study will provide inspiration and support for the application of cold plasma in the vegetative propagation of plants.
