Yang Ping, Wang Hong-Lan, Zhang Yan, Jiang Shun-Yuan, Du Jiu-Zhen, Sun Hong-Bing, Zhou Yi, Sun Hui
College of Pharmacy, Southwest Medical University, Luzhou 646000, China.
Sichuan Academy of Chinese Medicine Sciences, Chengdu 610041, China.
Zhongguo Zhong Yao Za Zhi. 2018 Dec;43(24):4824-4830. doi: 10.19540/j.cnki.cjcmm.20181025.009.
To investigate the adaptive mechanism of Notopterygium incisum to water changes, one-year-old seedlings were used as test materials. The characteristics of growth, physiology, and active ingredients of N. incisum were studied at different soil water content by pot experiments. The result showed that: ①The water content at 100% field capacity is conducive to the growth and accumulation of biomass of N. incisum. The leaf length, petiole length, petiole diameter, root diameter, root length and biomass of underground dry of N. incisum were all significantly increased at the 100% field capacity, and they slightly declined at 70% field capacity. 20% field capacity could not provide the necessary water to growth of N. incisum, all N. incisum withered and died. ②With the extension of moisture treatment time, the relative content of chlorophyll (SPAD) in leaves and the activity of peroxidase (POD) in rhizome showed a trend of increasing firstly, decreasing then; the tendency of activity of superoxide dismutase (SOD) in rhizome increased; the content of malondialdehyde (MDA) in rhizome decreased firstly and increased then;. For the late test, the SPAD value, the activity of POD and SOD in N. incisum at the 40% field capacity were lower than 70% field capacity and 100 field capacity, while the content of MDA in rhizome were higher than 70% field capacity and 100% field capacity. ③ At 70% field capacity, the active ingredients accumulated most in the N. incisum. At the 70% field capacity, the notopterol and isoimperatorinwerehigher than100 field capacity and 40 field capacity. In summary, the soil water content at 70%-100% field capacity would contribute to the growth and accumulation of active ingredients of N. incisum.
为探究羌活对水分变化的适应机制，以一年生幼苗为试验材料，通过盆栽试验研究了羌活在不同土壤含水量条件下的生长、生理及活性成分特征。结果表明：①田间持水量100%时有利于羌活的生长和生物量积累。羌活的叶长、叶柄长、叶柄直径、根直径、根长及地下干生物量在田间持水量100%时均显著增加，在田间持水量70%时略有下降。田间持水量20%不能为羌活生长提供必要水分，所有羌活均枯萎死亡。②随着水分处理时间的延长，叶片中叶绿素相对含量（SPAD）和根茎中过氧化物酶（POD）活性呈先升高后降低的趋势；根茎中超氧化物歧化酶（SOD）活性呈升高趋势；根茎中丙二醛（MDA）含量先降低后升高。后期试验中，田间持水量40%时羌活的SPAD值、POD和SOD活性均低于田间持水量70%和100%时，而根茎中MDA含量高于田间持水量70%和100%时。③田间持水量70%时羌活中活性成分积累最多。田间持水量70%时，羌活醇和异欧前胡素含量高于田间持水量100%和40%时。综上所述，田间持水量70%-100%有利于羌活的生长及活性成分积累。
