| 木麻黄水浸液对青皮种子的化感效应 |
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| 引用本文： | 王春晴,刘强,张渝杰,丁勇,李蕾.木麻黄水浸液对青皮种子的化感效应[J].西北林学院学报,2012,27(3):80-86. |
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| 作者姓名： | 王春晴 刘强 张渝杰 丁勇 李蕾 |
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| 作者单位： | 1. 海南师范大学生命科学学院,海南海口571158;海南省热带动植物生态学重点实验室,海南海口571158
2. 海南师范大学生命科学学院,海南海口,571158 |
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| 基金项目： | 973计划前期研究专项(2008CB117008);海南师范大学植物学重点学科基金(HS-1-2011-071001) |
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| 摘 要： | 采用GC-MS技术,比较木麻黄根、根际土壤和凋落物3种浸提液的成分差异和含量差异,并研究了3种浸提液对青皮种子萌发的化感作用。结果表明:(1)浸提液处理延迟并抑制了青皮种子的萌发,降低了种子的发芽能力以及发芽速度,并且土壤浸提液处理的抑制程度最大,其次分别是凋落物浸提液和根浸提液。(2)3种浸提液中都含有的成分为1,2-二氢-3-巯基-3H-1,2,4-三唑,根际土壤浸提液中含量最高(70.41%),根系浸提液次之(21.79%),凋落物浸提液中含量最低(18.78%)。3,6-二甲基-1,2,4,5-四嗪、1,2,4-三硫环戊烷(1,2,4-Trithiolane)在根系及凋落物中均有分布。
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| 关 键 词： | 木麻黄 水浸液 分离鉴定 青皮种子 发芽率 化感作用 |
Isolation and Identification of the Aqueous Extract from Casuarina equisetifolia and Allelopathy Effects on the Seed Germination of Vatica mangachapoi |
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| WANG Chun-qing
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LIU Qiang
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ZHANG Yu-jie
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DING Yong
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LI Lei.Isolation and Identification of the Aqueous Extract from Casuarina equisetifolia and Allelopathy Effects on the Seed Germination of Vatica mangachapoi[J].Journal of Northwest Forestry University,2012,27(3):80-86. |
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| Authors: | WANG Chun-qing LIU Qiang ZHANG Yu-jie DING Yong LI Lei |
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| Institution: | 1,2*(1.College of Life Science,Hainan Normal University,Haikou,Hainan 571158,China;2.The Key Laboratory of Tropical Animal and Plant Ecology of Hainan Province,Haikou,Hainan 571158,China) |
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| Abstract: | Differences in compositions and contents of the aqueous extracts from the root,rhizosphere soil and the litter of Casuarina equisetifolia were studied by using the gas chromatography and mass spectroscopy.Allelopathy effects of three types of the extract on the seed germination were also researched.The results showed that:(1) All the three extracts inhibited and delay the seed germination,reduced seed germination capacity and rate.The rhizosphere soil extract had the strongest inhibitory effects,followed by the litter and root extracts.(2) Compound 3H-1,2,4-triazole-3-thione were found in all the 3 kinds of aqueous extracts,highest(70.41%) in rhizosphere soil extracts,followed by root extract(21.79%),and litter extract(18.78%).Compounds 3,6-dimethyl-1,2,4,5-tetrazine and 1,2,4-trithiolane were identified in the root and litter extracts. |
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| Keywords: | Casuarina equisetifolia aqueous extract isolation and identification Vatica mangachapoi seed germination rate allelopathy |
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