| 大豆根系分泌物中氨基酸组分与抗大豆胞囊线虫的相关性研究 |
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| 引用本文： | 王雪,段玉玺,陈立杰,王媛媛. 大豆根系分泌物中氨基酸组分与抗大豆胞囊线虫的相关性研究[J]. 沈阳农业大学学报, 2008, 39(6) |
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| 作者姓名： | 王雪 段玉玺 陈立杰 王媛媛 |
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| 作者单位： | 沈阳农业大学中国北方植物线虫研究所,沈阳,110161 |
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| 基金项目： | 国家自然科学基金项目 ， 十一五国家科技支撑计划项目 |
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| 摘 要： | 以5种对大豆胞囊线虫(soybean cyst nematode,SCN)不同抗性的大豆品种为试材.对其根系分泌物中的氨基酸组分进行测定,并对氨基酸组分与抗大豆胞囊线虫之间的相关性进行了分析.研究结果表明:感病品种根系分泌物能够刺激胞囊的孵化,而抗病品种根系分泌物对胞囊的孵化未表现明显刺激作用.同时,在研究不同抗性品种根系分泌物对SCN二龄幼虫趋化性的影响时还发现,感病品种根系分泌物对SCN二龄幼虫表现了明显的吸引性.在供试的5种大豆品种根系分泌物中共检测到了14种氨基酸,只有精氨酸和脯氨酸在抗感品种中均未检测到.根系分泌物中,氨基酸的总含量在感病品种中的平均表达量为87.90mg·L-1,显著高于在抗病品种中的平均表达量(26.77 mg·L-1),其中谷氨酸、甘氨酸、丙氨酸、亮氨酸、赖氨酸和苯丙氨酸等的表达量与抗病性呈一定负相关.而酪氨酸和半胱氨酸的表达量与抗病性呈一定正相关.
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| 关 键 词： | 大豆 豆胞囊线虫 根系分泌物 氨基酸 |
Correlation Analysis of Amino Acids Components in Soybean Cultivars Root Exudates and Resistance to Soybean Cyst Nematode |
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| WANG Xue,DUAN Yu-xi,CHEN Li-jie,WANG Yuan-yuan. Correlation Analysis of Amino Acids Components in Soybean Cultivars Root Exudates and Resistance to Soybean Cyst Nematode[J]. Journal of Shenyang Aricultural University, 2008, 39(6) |
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| Authors: | WANG Xue DUAN Yu-xi CHEN Li-jie WANG Yuan-yuan |
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| Affiliation: | WANG Xue,DUAN Yu-xi,CHEN Li-jie,WANG Yuan-yuan(Nematology Institute of Northern China,Shenyang Agricultural University,Shenyang 110161,China) |
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| Abstract: | Root exudates were collected from five soybean cultivars with different resistance to SCN.Free amino acids from the exudates were detected using an automatic amino acid analyzer and their relationships with the resistance of soybean cyst nema-tode were studied.The results indicated that the types and contents of amino acids examined were different in these root exu-dates.Root exudates of susceptible cultivars stimulated hatching cyst of SCN,and attracted to the J2 of SCN.Fourteen kinds of amino acids were d... |
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| Keywords: | soybean Heterodera glycines root exudates amino acids |
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