中国中药杂志

2019, v.44(23) 5118-5123

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光照强度对钩藤生长及有效成分含量的影响
Effects of light intensity on growth and content of active components of Uncaria rhynchophyll

王健健;姬拉拉;邓小红;吕立堂;喻理飞;关萍;
WANG Jian-jian;JI La-la;DENG Xiao-hong;LYU Li-tang;YU Li-fei;GUAN Ping;Key Laboratory of Innovation Education of Mountain Plant Resources Conservation and Germplasm,Center for Collaborative Innovation of Mountain Ecology and Agricultural Bioengineering,College of Life Sciences/Academy of Agricultural Bioengineering,Guizhou University;

摘要(Abstract):

该文旨在研究不同光照强度对钩藤生长、生物量积累与分配、叶绿素含量及有效成分的影响,探索钩藤幼苗人工栽培适宜光强条件。以三年生钩藤幼苗为试验材料,采用不同层数黑色遮阳网,设置4个光强水平(100%,70%~75%,30%~35%,5%~10%)进行遮阴处理。结果表明,随光强减弱,钩藤幼苗株高、基径、(根、茎、叶、钩)生物量均呈"增大—减小"的变化趋势,70%~75%光强下,钩藤幼苗株高、基径、(根、茎、叶、钩)生物量显著高于其他处理(P<0. 05); 5%~10%光强下,株高、基径、(根、钩)生物量显著低于其他处理(P<0. 05);随光强减弱,钩藤幼苗叶绿素含量逐渐增多,100%光照下叶绿素含量最小,5%~10%光强下叶绿素含量最高;钩藤幼苗不同器官钩藤碱与异钩藤碱含量随光照强度降低呈不同的变化规律,光强30%~35%下钩藤钩中钩藤碱与异钩藤碱及茎中钩藤碱含量最高,光强5%~10%下钩藤叶片中钩藤碱与异钩藤碱及茎中异钩藤碱含量最高。综上,光强70%~75%适宜幼苗生长和生物量积累;光强30%~35%适宜钩藤幼苗有效成分的积累。
The aim of this study was to study the effects of different light intensity on the growth,biomass accumulation and distribution,chlorophyll content and effective components of Uncaria rhynchophylla seedlings,and explore the suitable light intensity conditions for artificial cultivation of U. rhynchophylla seedlings. Three-year-old U. rhynchophylla seedlings were used as experimental materials. Four light intensity levels( 100%,70%-75%,30%-35%,5%-10%) were set up with different layers of black shading net. With the decrease of light intensity,the results showed that the plant height,basal diameter and biomass( root,stem,leaf and hook) of U.rhynchophylla seedlings exhibited the trend of " increase-decrease". Under 70%-75% light intensity,the plant height,basal diameter,biomass( root,stem,leaf,hook) of U. rhynchophylla seedlings were significantly higher than those of other treatments( P< 0. 05);under 5%-10% light intensity,the plant height,basal diameter and biomass( root,hook) of U. rhynchophylla seedlings were significantly lower than those of other treatments( P<0. 05). With the decrease of light intensity,the chlorophyll content of U. rhynchophylla seedlings increased gradually: under 100% light intensity,the chlorophyll content of U. rhynchophylla seedlings were the smallest,while under 100% light intensity,its chlorophyll content was the highest. With the decrease of light intensity,the contents of rhynchophylline and isorhynchophylline in different organs of U. rhynchophylla seedlings varied: under 30%-35% light intensity,the contents of rhynchophylline and isorhynchophylline in hooks and rhynchophylline content in stems were the highest; under 5%-10% light intensity,the contents of rhynchophylline and isorhynchophylline in leaves and stems of U. rhynchophylla were the highest. In conclusion,70%-75% light intensity is suitable for seedling growth and biomass accumulation,and 30%-35% light intensity is suitable for the accumulation of effective components in U. rhynchophylla seedlings.

关键词(KeyWords): 钩藤;光照强度;生长;有效成分
Uncaria rhynchophyll;light intensity;growth;active ingredient

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(31760155);; 贵州省科技厅自然科学基金项目[2016(1033)];; 贵州省生物学一流学科建设项目(GNYL[2017]009)

作者(Author): 王健健;姬拉拉;邓小红;吕立堂;喻理飞;关萍;
WANG Jian-jian;JI La-la;DENG Xiao-hong;LYU Li-tang;YU Li-fei;GUAN Ping;Key Laboratory of Innovation Education of Mountain Plant Resources Conservation and Germplasm,Center for Collaborative Innovation of Mountain Ecology and Agricultural Bioengineering,College of Life Sciences/Academy of Agricultural Bioengineering,Guizhou University;

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