害虫与否？金龟子（鞘翅目：金龟科）与持久性有机污染物的接触
A Pest or Otherwise? Encounter of (Coleoptera: Scarabaeidae) with Persistent Organic Pollutants.
作者信息
Shen Meng-Wei, Chen Hung-Chuan, Chen Shyi-Tien
机构信息
Ph.D. Program in Engineering Science and Technology, College of Engineering, National Kaohsiung University of Science and Technology, Kaohsiung City 82445, Taiwan.
Department of Safety, Health and Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung City 82445, Taiwan.
出版信息
Insects. 2021 Sep 12;12(9):818. doi: 10.3390/insects12090818.
The potential use of invertebrates as bioreactors to treat environmental pollutants is promising and of great interest. Three types of the persistent organic pollutants (POPs), namely pentachlorophenol (PCP), PAHs (naphthalene and phenanthrene) and dieldrin (DLN), were spiked in soil and treated by using larvae, a known pest of coconut trees in southeast Asia, and also the indicators of POP toxicity and the fate and degradability of the ingested POPs were assessed. The larvae were tested at various levels of the POPs and went through an acclimation process. Without acclimation, the tolerance limits of the larvae toward PCP, PAHs and DLN were 200, 100 and 0.1 mg/kg-soil, respectively, yet with acclimation, the tolerance levels increased to 800, 400 and 0.5 mg/kg-soil, respectively. Biodegradation rates of all the tested POPs were >90% by week 2, with <5% and nearly 0% remaining in the feces and body of the larvae, respectively. The results suggest that the use of the beetle larvae in soil POP decontamination is doable.
利用无脊椎动物作为生物反应器来处理环境污染物具有广阔前景且备受关注。三种持久性有机污染物（POPs），即五氯苯酚（PCP）、多环芳烃（萘和菲）和狄氏剂（DLN），被添加到土壤中，并使用椰心叶甲幼虫进行处理，椰心叶甲是东南亚椰树的一种已知害虫，同时也是POP毒性以及摄入的POPs的归宿和降解性的指示生物。对幼虫在不同POPs水平下进行测试，并使其经历驯化过程。未经驯化时，幼虫对PCP、多环芳烃和狄氏剂的耐受极限分别为200、100和0.1毫克/千克土壤，但经过驯化后，耐受水平分别提高到800、400和0.5毫克/千克土壤。到第2周时，所有测试的POPs的生物降解率均>90%，分别有<5%和几乎0%残留在幼虫的粪便和体内。结果表明，利用甲虫幼虫进行土壤POPs去污是可行的。
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