摘要
[目的]明确干旱胁迫对柽柳-肉苁蓉间同化产物的运输及有效成分含量的影响。[方法]以中国柽柳和管花肉苁蓉为材料,研究不同土壤水分下柽柳-肉苁蓉的生长状况、碳水化合物分配规律和有效成分含量变化。[结果]土壤干旱导致管花肉苁蓉接种率下降了51.7%,生长受到抑制,生物量仅为对照的12.5%;适宜条件下,管花肉苁蓉体内松果菊苷和毛蕊花糖苷含量分别为严重干旱下的1.3和1.2倍,但土壤干旱下管花肉苁蓉体内半乳糖醇含量提高2.1倍;土壤干旱导致管花肉苁蓉体内可溶性糖含量降低39.8%,淀粉含量下降37.7%;管花肉苁蓉可溶性糖分配比例由正常条件下的66.6%下降到19.1%,非结构性碳水化合物由65.3%下降到12.9%。[结论]土壤干旱导致寄主柽柳同化产物向管花肉苁蓉的运输比例降低,管花肉苁蓉生物产量下降。
[Objective] The research aimed to clear the effects of drought stress on transport of assimilation product and effective constituent contents among Tamarix chinesis and Cistanche tubulosa.[Method] Take Tamarix chinesis and Cistanche tubulosa as the materials,their growth condition,the carbohydrate assignment rule and the effective constituent contents change were studied under the different soil moisture.[Result] Under drought stress,the inoculation rate of Cistanche tubulosa has dropped 51.7%,growth was inhibited,the biomass was only 12.5% of the comparison.Under the suitable condition,Echinacoside and Verbascoside of Cistanche tubulosa increased by 1.3 times and 1.2 times;but under drought stress,the content of Galactitol was increased by 2.1 times,the soluble sugar content of cistanche tubulosa decreased 39.8%,the starch content decreased 37.7%.And,the distribution proportion of soluble sugar of cistanche tubulosa decreased from 66.6% to 19.1%,The distribution proportion of non-structural carbohydrates decreased from 65.3% to 12.9%.[Conclusion] Soil drought caused the transport proportion of Cistanche tubulosa decreased which transported by the assimilation product of host Tamarix chinesis and the biomass of Cistanche tubulosa declined.
出处
《安徽农业科学》
CAS
北大核心
2010年第26期14246-14247,14249,共3页
Journal of Anhui Agricultural Sciences
基金
国家"十一五"支撑计划(2006BAD26B04)
新疆自治区"十一五"科技攻关(200733146)
关键词
干旱胁迫
柽柳
管花肉苁蓉
碳水化合物
有效成分
Drought stress； Tamarix chinesis； Cistanche tubulosa； Carbohydrates； Effective constituent；
