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Sublethal effects of Isoclast™ Active (50% sulfoxaflor water dispersible granules) on larval and adult worker honey bees (Apis mellifera L.)
Ecotoxicology and Environmental Safety ( IF 6.8 ) Pub Date : 2021-05-28 , DOI: 10.1016/j.ecoenv.2021.112379
Jiahuan Li 1 , Liuwei Zhao 2 , Suzhen Qi 2 , Wenting Zhao 3 , Xiaofeng Xue 2 , Liming Wu 2 , Shaokang Huang 4
Affiliation  

Sulfoxaflor is a novel sulfoximine insecticide which is widely used to control crop pests. Risk assessments have reported its high toxicity to pollinators. However, sulfoxaflor is not persistent in the environment and few studies have addressed its negative effects on larval and newly emerged honeybees at environmentally relevant concentrations. In the present study, the sublethal effects of a sulfoxaflor commercial product, Isoclast™ Active, were evaluated in the laboratory using larvae and newly emerged worker honeybees. The results of 96-h acute toxicity showed that Isoclast is moderately toxic to adult bees, and it could induce significant death and growth failure of larvae after continuous dietary intake. In addition, Isoclast induced significant changes in antioxidative (SOD, CAT), lipid peroxidation (POD, LPO, MDA), detoxification (GST, GR, GSH) and signal transduction-related (AChE, ACh) enzymes or products both in larvae and adult honey bees under residue levels. Here we firstly reported the lethal and sublethal effects of commercial sulfoxaflor to honeybees’ larvae and young workers. All these findings revealed the potential risks of sulfoxaflor residue in environment to honey bees, and may also to other pollinators. This is a laboratory mimic studies, and further studies are still needed to investigate the risks and in-depth mechanisms of sulfoxaflor to bees in field.



中文翻译:

Isoclast™ Active(50% sulfoxaflor 水分散粒剂)对幼虫和成年工蜂(Apis mellifera L.)的亚致死作用

磺胺嘧啶是一种新型的亚砜亚胺杀虫剂,广泛用于防治农作物害虫。风险评估报告称其对传粉媒介具有高毒性。然而,氟啶虫胺在环境中不具有持久性,很少有研究在环境相关浓度下解决其对幼虫和新出现的蜜蜂的负面影响。在本研究中,在实验室中使用幼虫和新出现的工蜂评估了氟啶虫胺嘧啶商业产品 Isoclast™ Active 的亚致死作用。96 h急性毒性结果表明,Isoclast对成年蜜蜂有中度毒性,连续采食后可导致幼虫明显死亡和生长障碍。此外,Isoclast 在抗氧化(SOD、CAT)、脂质过氧化(POD、LPO、MDA)、解毒(GST、GR、GSH) 和信号转导相关 (AChE, ACh) 酶或产物在残留水平下幼虫和成年蜜蜂。在这里,我们首先报告了商业氟啶虫胺对蜜蜂幼虫和年轻工人的致死和亚致死作用。所有这些发现都揭示了环境中氟啶虫胺残留对蜜蜂以及其他传粉媒介的潜在风险。这是一项实验室模拟研究,尚需进一步研究以调查氟啶虫胺对大田蜜蜂的危害和深入机制。所有这些发现都揭示了环境中氟啶虫胺残留对蜜蜂以及其他传粉媒介的潜在风险。这是一项实验室模拟研究,尚需进一步研究以调查氟啶虫胺对大田蜜蜂的危害和深入机制。所有这些发现都揭示了环境中氟啶虫胺残留对蜜蜂以及其他传粉媒介的潜在风险。这是一项实验室模拟研究,尚需进一步研究以调查氟啶虫胺对大田蜜蜂的危害和深入机制。

更新日期:2021-05-30
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