在可控温度下，南方根结线虫和北方根结线虫的垂直迁移
Vertical Migration of Meloidogyne chitwoodi and M. hapla under Controlled Temperature.
作者信息
Pinkerton J N, Mojtahedi H, Santo G S, O'Bannon J H
出版信息
J Nematol. 1987 Apr;19(2):152-7.
Migratory ability of second-stage juveniles (J2) of two Meloidogyne chitwoodi races and a M. hapla population were compared in soil-filled columns at 12, 18, and 24 C. J2 of all populations migrated farthest at 18 C and least at 12 C. Nematode survival was significantly reduced (P = 0.05) at 24 C.M. chitwoodi J2 migrated further and in greater numbers than M. hapla J2 at all temperatures. A comparison with and without a host plant demonstrated no preferential migration toward the plant. Water percolation through the migration columns stimulated upward migration.
在12℃、18℃和24℃条件下，比较了两个根结线虫（Meloidogyne chitwoodi）生理小种的二龄幼虫（J2）和一个北方根结线虫（M. hapla）群体在装满土壤的柱体中的迁移能力。所有群体的J2在18℃时迁移距离最远，在12℃时迁移距离最短。在24℃时，线虫存活率显著降低（P = 0.05）。在所有温度下，根结线虫J2比北方根结线虫J2迁移得更远且数量更多。有宿主植物和无宿主植物的比较表明，线虫没有向植物优先迁移。水分通过迁移柱体的渗透刺激了向上迁移。
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