Rybalka Denis, Brygadyrenko Viktor
Department of Biodiversity and Ecology, Oles Honchar Dnipro National University, Nauky Av., 72, 49010 Dnipro, Ukraine.
Department of Parasitology and Veterinary and Sanitary Expertise, Dnipro State Agrarian and Economic University, Serhii Efremov St., 25, 49000 Dnipro, Ukraine.
Biology (Basel). 2025 Apr 23;14(5):453. doi: 10.3390/biology14050453.
Environmental pollution by toxic compounds affects various species of living organisms, their life cycles, and symbiotic relationships. This study investigated the host-parasite relationship between Linnaeus, 1758 (Coleoptera, Tenebrionidae) and Berthold, 1827 (Eugregarinorida, Gregarinida) under exposure to aniline, formaldehyde, and o-xylene at different concentrations. For laboratory studies, 480 larvae of and five concentrations of the studied organic compounds were used. Groups of , each consisting of ten individuals, were subjected to the tested compounds for 10 days following the initial weight measurement. We measured the body weight and survival rate of and the number of in them to assess the impact of the tested organic compounds on the host-parasite relationship. For all the compounds studied, a decrease in body weight and high mortality were observed in at high concentrations. The lethality of the studied organic compounds was concentration-dependent. o-Xylene showed low toxicity at lower concentrations (10.4 and 26.0 mg/kg of feed), with a survival rate of 93.3% and 86.7%, respectively. At a concentration of 10.4 mg/kg, no lethal cases in were observed. At higher concentrations (78 and 104 mg/kg feed), mortality significantly increased to 33.3% and 53.3%, respectively.
有毒化合物造成的环境污染会影响各种生物物种、它们的生命周期以及共生关系。本研究调查了在暴露于不同浓度的苯胺、甲醛和邻二甲苯的情况下，1758年的步甲属（鞘翅目，拟步甲科）与1827年的簇虫纲（簇虫目）之间的宿主 - 寄生虫关系。对于实验室研究，使用了480只步甲属幼虫和五种浓度的所研究有机化合物。在初始体重测量后，将每组十只个体的步甲属幼虫暴露于受试化合物中10天。我们测量了步甲属幼虫的体重和存活率以及其中簇虫的数量，以评估受试有机化合物对宿主 - 寄生虫关系的影响。对于所有研究的化合物，在高浓度下观察到步甲属幼虫体重下降和高死亡率。所研究有机化合物的致死率与浓度有关。邻二甲苯在较低浓度（饲料中10.4和26.0毫克/千克）时显示出低毒性，存活率分别为93.3%和86.7%。在浓度为10.4毫克/千克时，未观察到步甲属幼虫有致死情况。在较高浓度（饲料中78和104毫克/千克）时，步甲属幼虫死亡率分别显著增加到33.3%和53.3%。
