Characterization of antibiosis and antixenosis to the soybean aphid (Hemiptera: Aphididae) in several soybean genotypes
Characterization of antibiosis and antixenosis to the soybean aphid (Hemiptera: Aphididae) in several soybean genotypes
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DOI：
10.1603/0022-0493-99.5.1884
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发表时间：
2006-10-01
影响因子：
2.2
通讯作者：
Campbell, Leslie R.
中科院分区：
文献类型：
--
作者：
Diaz-Montano, John;Reese, John C.;Campbell, Leslie R.
大豆蚜（Aphis glycines Matsumura）是大豆（Glycine max（L.）我的天啊，在北美，它可以减少50%的产量。自2000年A.大豆是第一次在美国发现，这种昆虫的研究和可能的控制方法已经开始。植物对该蚜虫的抗性是综合防治的一个重要组成部分。A.繁殖在无农药温室中比较了240个大豆条目上的甘氨酸。与敏感对照相比，11个条目产生的细菌较少，这些条目用于后续实验以评估细菌和抗毒素作用。抗生素是在真正的无选择测试中估计的，在该测试中，将成虫单独限制在贴在叶子上侧的双面粘性笼子中。在选择试验中评估了抗异种性，其中所有条目都种植在一个盆中。将成虫置于盆的中心，24小时后计数每株植物上的成虫数量。在评价的11个条目中，9个对A显示出中度抗生素效应。另外两个品系（K1639和Pioneer 95B97）不仅表现出很强的抗菌作用，而且还表现出作为A.甘氨酸本研究中发现的抗性大豆材料是A.甘氨酸对照。
The soybean aphid, Aphis glycines Matsumura (Hemiptera: Aphididae), is an introduced pest of soybean, Glycine max (L.) Merr., in North America, and it can reduce yields by 50%. Since 2000, when A. glycines was first detected in the United States, studies of this insect and possible control methods have been initiated. Plant resistance to this aphid species is one important component of integrated control. Reproduction of A. glycines was compared on 240 soybean entries in a pesticide-free greenhouse. Eleven entries had fewer nymphs produced, compared with the susceptible checks, and these entries were used in follow-up experiments to assess antibiosis and antixenosis. Antibiosis was estimated in true no-choice tests, in which adults were confined individually in double-sided sticky cages stuck to the upper side of leaves. Antixenosis was assessed in choice tests, in which all entries were planted in a single pot. Adult aphids were placed in the center of the pot, and 24 h later the number of adults on each plant was counted. Of the 11 entries evaluated, nine showed a moderate antibiotic effect to A. glycines, and the other two entries (K1639 and Pioneer 95B97) showed not only a strong antibiotic effect but also exhibited antixenosis as a category of resistance to A. glycines. The resistant soybean entries found in this work are potential sources for A. glycines control.