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首页> 外文期刊>Dose-response >DEPENDENCE OF DANDELION (TARAXACUM OFFICINALE WIGG.) SEED REPRODUCTION INDICES ON INTENSITY OF MOTOR TRAFFIC POLLUTION
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DEPENDENCE OF DANDELION (TARAXACUM OFFICINALE WIGG.) SEED REPRODUCTION INDICES ON INTENSITY OF MOTOR TRAFFIC POLLUTION

机译：蒲公英种子繁殖指数对机动车交通污染强度的影响

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摘要

Dandelion (Taraxacum officinale Wigg.) seed reproduction indices such as the total number of seeds, the number of normally developed seeds and underdeveloped seeds per anthodium, and seed weight are suggested to assess the level of environmental pollution (bioindication). However, the non-monotonic dose-response dependences (hormesis and paradoxical effects) of these indices are insufficiently explored upon exposure to pollution. We studied the dependence of some T. officinale seed reproduction indices on intensity of motor traffic pollution in wide range of values over 2 years of observation. In 2010, the increase in traffic intensity induced a monotonic increase in the total seed number and the number of normally developed seeds. Besides, motor traffic pollution decreased the number of undeveloped seeds and seed weight in comparison with the control. In 2011, for all studied T. officinale indices except seed weight, complicated non-monotonic dependences on traffic intensity were found that could be attributed to paradoxical effects. It is hypothesised that the significant differences in the studied dependencies in 2010-2011 were caused by changes in weather conditions because traffic intensity did not differ significantly between the two observation years.
机译：建议使用蒲公英（Taraxacum officinale Wigg。）种子繁殖指数，例如种子总数，每只蒽的正常发育的种子数和发育不足的种子数以及种子重量，以评估环境污染的水平（生物指示）。但是，在暴露于污染后，这些指标的非单调剂量反应依赖性（毒副作用和反常效应）尚未得到充分研究。我们在2年的观察中，研究了一些T.officinale种子繁殖指数对机动车交通污染强度的依赖性，涉及的值范围很广。 2010年，交通强度的增加导致种子总数和正常发育种子数单调增加。此外，与对照相比，机动车交通污染减少了未发育种子的数量和种子重量。在2011年，对于所有研究的T.officinale指数（种子重量除外），发现对交通强度的复杂非单调依赖性可能归因于悖论效应。假设2010-2011年间研究依赖性的显着差异是由于天气状况的变化而引起的，因为交通强度在两个观测年之间没有显着差异。

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