摄入已知致癌的多芳香烃对三种蝗虫的影响

Jacques Bouchard
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引用次数: 2

摘要

本文首先介绍了三种蝗虫(Gomphocerus sibiricus, Gomphocerus rufus和Euchorthippus pulvinatus)摄入多芳香烃(HAP)*后的实验结果。我们想要评估它们的毒性,然后确定它们在生物体中的位置。使用了两种对哺乳动物致癌的HAP。它们对我们的蝗虫是剧毒的。摄入0.015毫克或0.06毫克的3 -甲基胆蒽分别杀死25%和50%。而且,苯并a-芘似乎具有更大的毒性,而白斑蝶是最具抗性的物种。3mc和BaP在紫外线下呈强荧光,解剖后可以很容易地在生物体中检测到,使用冷冻材料可以更详细地检测到。显微镜下可见中肠吸收活性;大多数器官因此被完整的碳氢化合物或其各种衍生物侵入。肌肉和生殖器官发出明亮的荧光,这种荧光在神经系统中达到最大。麻风管似乎是消除这些产品的主要途径。一些器官的显著易感性对我们的研究进展是令人鼓舞的。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Effets produits chez trois espèces de criquets par l'ingestion d'hydrocarbures polyaromatiques réputés cancérogènes

In a first approach to studying the effects of air pollutants, we describe some experimental results obtained after ingestion of polyaromatic hydrocarbons (HAP)* by three species of locusts (Gomphocerus sibiricus, Gomphocerus rufus and Euchorthippus pulvinatus). We wanted to evaluate their toxicity, then to locate them in the organism. Two HAP, carcinogenic for mammals, were used. They are highly toxic for our locusts. Ingestion of 0.015 or 0.06 mg of 3 methylcholanthrene kills respectively 25 % and 50 % of them. Moreover, benzo-a-pyrene seems to have a greater toxicity, and E. pulvinatus is the most resistant species. Strongly fluorescent in UV light, 3 MC and BaP can be easily detected in the organism after dissection, and with more detail using frozen material. The microscope shows absorption activity of midgut; most of the organs are consequently invaded by intact hydrocarbon or its various derivatives. Muscles and reproductive organs show a bright fluorescence, which reaches its maximum in the nervous system. Tubes of Malpighi seem to be the principal route of elimination of these products. The remarkable susceptibility of some organs is encouraging for the progress of our study.

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