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首页> 外文期刊>Protoplasma: An International Journal of Cell Biology >Pest and natural enemy: how the fat bodies of both the southern armyworm Spodoptera eridania and the predator Ceraeochrysa claveri react to azadirachtin exposure
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Pest and natural enemy: how the fat bodies of both the southern armyworm Spodoptera eridania and the predator Ceraeochrysa claveri react to azadirachtin exposure

机译：害虫和自然敌人：南方武器Spodoptera eridania和捕食者Ceraeochrysa claveri的脂肪体如何对Azadirachtin暴露作出反应

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摘要

The effects of biopesticides on insects can be demonstrated by morphological and ultrastructural tools in ecotoxicological analysis. Azadirachtin-based products are widely used as biopesticides, affecting numerous insect populations. Through morphological biomarkers, this study aimed to characterize the fat bodies of both the southern armyworm Spodoptera eridania and the predator Ceraeochrysa claveri after chronic exposure to azadirachtin. Larvae of S. eridania and C. claveri were fed with fresh purple lettuce leaves (Lactuca sativa) and egg clusters of Diatraea saccharalis treated with azadirachtin solution of 6mg active ingredient (a.i.)/L and 18mg a.i./L for 7days, respectively. The biological data showed a significant reduction in survival and body mass in S. eridania and cytotoxic effects in the parietal and perivisceral fat bodies in both species. Ultrastructural cell damage was observed in the trophocytes of both species such as dilated cisternae of the rough endoplasmic reticulum and swollen mitochondria. Trophocytes of S. eridania and C. claveri of the parietal and perivisceral layers responded to those injuries by different cytoprotective and detoxification means such as an increase in the amount of cytoplasmic granules containing calcium, expression of heat shock protein (HSP)70/HSP90, and development of the smooth endoplasmic reticulum. Despite all the different means of cytoprotection and detoxification, they were not sufficient to recover from all the cellular damages. Azadirachtin exhibited an excellent performance for the control of S. eridania and a moderate selectivity for the predator C. claveri, which presents better biological and cytoprotective responses to chronic exposure to azadirachtin.
机译：生物科技对生态毒理学分析的形态学和超微结构工具可以证明生物化学对昆虫的影响。基于Azadirachtin的产品被广泛用作生物特刊，影响了许多昆虫种群。通过形态学生物标志物，本研究旨在表征南部南部南部南部的脂肪体的脂肪体，慢性暴露于Azadirachtin后捕食者Ceraeochrysa Claveri。 S.Eridania和C.Claveri的幼虫用新鲜的紫莴苣叶（Lactuca Sativa）和蛋白糖酸蛋白酶的蛋白酶喂养，分别用6mg活性成分（A.i.）/ L和18mg A.i./l分别为7天。生物学数据表明，在两种物种中的埃里达尼亚血症和体内和细胞毒性作用中的存活和体重显着降低。在两种种类的滋养细胞中观察到超微结构细胞损伤，例如粗糙的内质网和肿胀的线粒体的扩张岩瘤。 S. Eridania和C.的滋养粒细胞和C. parivisceral的Claveri对这些损伤的损伤是不同的细胞保护和解毒方法，例如含有钙的细胞质颗粒量的增加，热休克蛋白（HSP）70 / Hsp90的表达，平滑内质网的发展。尽管所有的细胞保护和排毒手段，但它们不足以从所有细胞损伤中恢复。 Azadirachtin对S. eridania的控制表现出优异的性能和捕食者C.Claveri的中度选择性，这提出了更好的生物学和细胞保护对Azadirachtin暴露的慢性暴露的反应。

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