| 地黄根系分泌物生物活性研究及化感物质的鉴定 |
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| 引用本文： | 郜峰,洪冲,陈红歌,刘新育,王明道.地黄根系分泌物生物活性研究及化感物质的鉴定[J].江西农业学报,2010,22(3):131-134. |
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| 作者姓名： | 郜峰 洪冲 陈红歌 刘新育 王明道 |
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| 作者单位： | 河南农业大学,生命科学学院,河南,郑州,450002 |
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| 基金项目： | 国家自然科学基金项目“阿魏酸影响地黄块根膨大机理研究”(30671201);;河南农业大学创新基金“地黄对芝麻的化感作用研究”(2009-CX-017) |
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| 摘 要： | 采用砂粒为培养地黄苗的基质,利用XAD-4柱循环收集地黄根系分泌物,通过对地黄、莴苣、芝麻、萝卜的生物测定,将有影响的组分进行GC-MS物质鉴定。研究结果显示:根系分泌物的酸性组分和中碱性组分对作物胚根和胚芽伸长都有抑制作用,随添加量的增加抑制加强,其中对萝卜胚根的影响表现为低促高抑。分别将两种组分进行GC-MS物质鉴定,发现在两种组分中都含有长链脂肪酸和阿魏酸等常见的化感物质。
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| 关 键 词： | 地黄 根系分泌物 化感物质 GC-MS |
Bioactivity of Root Exudates of Rehmannia glutinosa and Identification of Their Allelopathic Compounds |
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| GAO Feng,HONG Chong,CHEN Hong-ge,LIU Xin-yu,WANG Ming-dao.Bioactivity of Root Exudates of Rehmannia glutinosa and Identification of Their Allelopathic Compounds[J].Acta Agriculturae Jiangxi,2010,22(3):131-134. |
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| Authors: | GAO Feng HONG Chong CHEN Hong-ge LIU Xin-yu WANG Ming-dao |
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| Affiliation: | College of Life Science/a>;Henan Agricultural University/a>;Zhengzhou 450002/a>;China |
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| Abstract: | Sand was used as the substrate of cultivating the seedlings of Rehmannia glutinosa,the exudates from the root system of Rehmannia glutinosa seedlings were cyclically collected by XAD-4 resin column,then the bioactivity of the exudates to Rehmannia glutinosa,lettuce,sesame and radish was determined,finally the influential fractions in root exudates were identified by GC-MS.The results showed that both the acidic fraction and alkaline fraction in root exudates had restraining effect on the radical and embryo ... |
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| Keywords: | Rehmannia glutinosa Root exudates Allelochemicals GC-MS |
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