Mortality and behavior in Heterodera glycines juveniles following exposure to isothiocyanate compounds.
Mortality and behavior in Heterodera glycines juveniles following exposure to isothiocyanate compounds.
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DOI：
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发表时间：
2010-09
影响因子：
1.3
通讯作者：
N. Schroeder;A. MacGuidwin
中科院分区：
文献类型：
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作者：
N. Schroeder;A. MacGuidwin
在这份报告中，我们研究了三种植物来源的异硫氰酸酯化合物对大豆胞囊线虫第二阶段幼虫（J2）的毒性作用。根据死亡率和行为测量，我们发现影响线虫所需的浓度在化合物之间存在显着差异。影响行为所需的浓度显著低于死亡所需的浓度。死亡率和行为的测量被用来调查是否线虫在静止状态下显示降低敏感性异硫氰酸酯相比，积极移动的线虫。死亡率测量结果显示，静态线虫显着不敏感异硫氰酸酯比活跃的线虫。所有的行为测量暴露于苯甲基和苯基异硫氰酸酯表现出显着差异的敏感性之间的静止和活跃的线虫。然而，静态和活动的线虫之间的显着差异，观察到只有一个的五个行为测量暴露于异硫氰酸烯丙酯。这些结果扩展了对H.甘氨酸和说明的影响，行为静止线虫对外源毒素的敏感性。
For this report, we examined the toxic effects of three plant-derived isothiocyanate compounds on second-stage juveniles (J2) of Heterodera glycines. We found significant differences among compounds in the concentration required to affect nematodes, according to mortality and behavioral measurements. The concentrations required to affect behavior were significantly lower than those required for mortality. Both mortality and behavioral measurements were used to investigate whether nematodes in a quiescent state display decreased sensitivity to isothiocyanates compared with actively moving nematodes. Mortality measurements revealed that quiescent nematodes were significantly less sensitive to isothiocyanates than active nematodes. All behavioral measurements following exposure to benzyl- and phenyl isothiocyanate showed significant differences in sensitivity between quiescent and active nematodes. However, significant differences between quiescent and active nematodes were observed in only one of the five behavioral measurements following exposure to allyl isothiocyanate. These results expand the list of plant-derived compounds toxic to H. glycines and illustrate the impact of behavioral quiescence on nematode sensitivity to exogenous toxins.