南方根结线虫的极度敏感趋温性
Extremely Sensitive Thermotaxis of the Nematode Meloidogyne incognita.
作者信息
Pline M, Diez J A, Dusenbery D B
出版信息
J Nematol. 1988 Oct;20(4):605-8.
Abstract
Eggs of the root-knot nematode Meloidogyne incognita were acclimated to 23 C. Newly hatched second-stage juveniles migrated toward higher temperatures when placed in shallow thermal gradients averaging 23 C. The threshold gradient for this response was below 0.001 C/cm, with a best estimate of 4 x 10 C/cm. Calculations of physical limitations on thermotaxis indicate that this sensitivity is well within the limits of what is physically possible.
摘要
根结线虫南方根结线虫的卵适应了23摄氏度。新孵化的二龄幼虫在置于平均温度为23摄氏度的浅热梯度中时会向更高温度迁移。这种反应的阈值梯度低于0.001摄氏度/厘米，最佳估计值为4×10摄氏度/厘米。对趋温性物理限制的计算表明，这种敏感性完全在物理上可能的范围内。
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