[1]童晓翠,庞珂佳,王俊儒*,等.卷丹鳞茎水浸提液对生菜化感作用的研究[J].西北林学院学报,2008,23(05):154.
　ONG Xiao cui,PANG Ke jia,WANG Jun ru*,et al.Allelopathic Effect of the Aqueous Extracts from the Bulbs of Lilium lancifolium on Lettuce[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2008,23(05):154.
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卷丹鳞茎水浸提液对生菜化感作用的研究()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第23卷
期数:
2008年05期
页码:
154
栏目:
林产化学
出版日期:
2008-09-30

文章信息/Info

Title:
Allelopathic Effect of the Aqueous Extracts from the Bulbs of Lilium lancifolium on Lettuce
作者:
童晓翠1; 庞珂佳2; 王俊儒2*; 牛立新3
1. 西北农林科技大学 生命科学学院； 2. 理学院； 3. 园艺学院，陕西 杨陵 712100
Author(s):
ONG Xiaocui1; PANG Kejia2; WANG Junru2*; NIU Lixin3
1. College of Life Sciences，Northwest A&F University；2. College of Science;3.College of Horticulture, Yangling，Shaanxi 712100，China
关键词:
卷丹; 生菜; 化感作用
Keywords:
Lilium lancifolium;  lettuce;  allelopathy
分类号:
S644.1
文献标志码:
A
摘要:
为了研究卷丹鳞茎水提液对生菜的化感作用及其作用机理，以卷丹鳞茎为供体，生菜为受体，运用培养皿法测定了不同浓度卷丹鳞茎水提液处理的生菜种子萌发和幼苗生长情况，超氧阴离子自由基含量和保护酶活性。在最高浓度100 g·L-1的卷丹鳞茎水提液的作用下，18 h生菜种子萌发率由对照的59%降到0; 72 h时根长和下胚轴长分别比对照降低了78.3%和47.3%。随水提液浓度的增加，生菜幼苗中的超氧阴离子自由基的含量最高增加到对照的2.85倍，SOD、POD和CAT的活性分别增加到对照的2.37倍、2.47倍和1.23倍。这些结果表明，卷丹鳞茎水提液对生菜种子的萌发、早期幼苗的生长均显示出明显的抑制作用，并对生菜幼苗的抗氧化系统产生了干扰。
Abstract:
Allelopathetic effects and mechanisms of the aqueous extracts from the bulbs of Lilium lancifolium on lettuce were investigated. The germination, growth, the content of superoxide anion and the activities of scavenging enzymes of lettuce treated by the aqueous extracts were studied by adopting petri dish bioassay. At the highest concentration 100 g per litre of the aqueous extracts from the bulbs of L. lancifolium, the germination rate of lettuce within 18 h was 0, whereas the germination rate of the control was 59%; Within 72 h the length of root and hypocotyl were decreased with 78.3% and 47.3% respectively, compared with the control. With the increase of the aqueous extracts concentration, the highest content of superoxide anion in the lettuce seedlings was 2.85times of control, and the activities of SOD, POD, and CAT were 2.37times, 2.47times, 1.23times of that in control, respectively. These results suggested that the germination and growth of lettuce were significantly inhibited by the aqueous extracts from the bulbs of L. lancifolium，and the protective system in the seedling was seriously disturbed.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期：20080516修回日期：20080528 基金项目： 2005年教育部新世纪优秀人才支持计划(NCET050855)。 作者简介：童晓翠，女，在读硕士，主要从事药用植物化学成分的研究。 *通讯作者：王俊儒，男，博士，教授，主要从事植物资源化学和环境生物学研究。Email: wangjr07@163.com
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