Physiological and Biochemical Responses to Sublethal Concentrations of the Novel Pyropene Insecticide, Afidopyropen, in Whitefly Bemisia tabaci MED (Q Biotype)

Bemisia tabaci is a devastating agricultural insect pest worldwide, and B. tabaci MED (formerly biotype ‘Q’) threatens the production of horticultural and economic crops in China as a growing number of cases of insecticide resistance have issued, highlighting th...

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Autores principales:	Xuan Zhou, Ziyi Zhang, Huixin Zheng, Qinghe Zhang, Jingyu Gong, Chuanren Li, Ran Wang
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	sucking insect pest control toxicity sublethal effects metabolic enzymes Agriculture S
Acceso en línea:	https://doaj.org/article/d2b730e3d25645e0a6f0c26d53f8b30f
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spelling	oai:doaj.org-article:d2b730e3d25645e0a6f0c26d53f8b30f2021-11-25T16:09:14ZPhysiological and Biochemical Responses to Sublethal Concentrations of the Novel Pyropene Insecticide, Afidopyropen, in Whitefly <i>Bemisia tabaci</i> MED (Q Biotype)10.3390/agronomy111122602073-4395https://doaj.org/article/d2b730e3d25645e0a6f0c26d53f8b30f2021-11-01T00:00:00Zhttps://www.mdpi.com/2073-4395/11/11/2260https://doaj.org/toc/2073-4395<i>Bemisia tabaci</i> is a devastating agricultural insect pest worldwide, and <i>B. tabaci</i> MED (formerly biotype ‘Q’) threatens the production of horticultural and economic crops in China as a growing number of cases of insecticide resistance have issued, highlighting the requirement for alternative methods and measures of pest management. In the present work, the toxicities of eight popular chemical agents, including the novel pyropene insecticide afidopyropen, on adults of <i>B. tabaci</i> MED were determined, and then physiological and biochemical responses to sublethal concentrations were confirmed. Among all tested chemical agents, afidopyropen exhibited the highest toxicity to adult whiteflies (LC<sub>50</sub>: 7.38 mg/L). The sublethal effects of afidopyropen were studied at two sublethal concentrations, LC<sub>10</sub> (0.53 mg/L) and LC<sub>25</sub> (1.84 mg/L), and LC<sub>25</sub> treatment extended the duration of growth stages and reduced viabilities in the stages of nymphal, pseudopupae, and adults. The egg-laying days and eggs laid per female were also decreased significantly, as was hatchability in the LC<sub>25</sub> treatment. Metabolic enzyme assays suggested that the sublethal effects of LC<sub>25</sub> treatment could be ascribable to enhanced detoxification mediated by glutathione S-transferase. In summary, our findings indicate that afidopyropen can be used as a chemical agent for the management of <i>B. tabaci</i> MED whiteflies.Xuan ZhouZiyi ZhangHuixin ZhengQinghe ZhangJingyu GongChuanren LiRan WangMDPI AGarticlesucking insectpest controltoxicitysublethal effectsmetabolic enzymesAgricultureSENAgronomy, Vol 11, Iss 2260, p 2260 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	sucking insect pest control toxicity sublethal effects metabolic enzymes Agriculture S
spellingShingle	sucking insect pest control toxicity sublethal effects metabolic enzymes Agriculture S Xuan Zhou Ziyi Zhang Huixin Zheng Qinghe Zhang Jingyu Gong Chuanren Li Ran Wang Physiological and Biochemical Responses to Sublethal Concentrations of the Novel Pyropene Insecticide, Afidopyropen, in Whitefly <i>Bemisia tabaci</i> MED (Q Biotype)
description	<i>Bemisia tabaci</i> is a devastating agricultural insect pest worldwide, and <i>B. tabaci</i> MED (formerly biotype ‘Q’) threatens the production of horticultural and economic crops in China as a growing number of cases of insecticide resistance have issued, highlighting the requirement for alternative methods and measures of pest management. In the present work, the toxicities of eight popular chemical agents, including the novel pyropene insecticide afidopyropen, on adults of <i>B. tabaci</i> MED were determined, and then physiological and biochemical responses to sublethal concentrations were confirmed. Among all tested chemical agents, afidopyropen exhibited the highest toxicity to adult whiteflies (LC<sub>50</sub>: 7.38 mg/L). The sublethal effects of afidopyropen were studied at two sublethal concentrations, LC<sub>10</sub> (0.53 mg/L) and LC<sub>25</sub> (1.84 mg/L), and LC<sub>25</sub> treatment extended the duration of growth stages and reduced viabilities in the stages of nymphal, pseudopupae, and adults. The egg-laying days and eggs laid per female were also decreased significantly, as was hatchability in the LC<sub>25</sub> treatment. Metabolic enzyme assays suggested that the sublethal effects of LC<sub>25</sub> treatment could be ascribable to enhanced detoxification mediated by glutathione S-transferase. In summary, our findings indicate that afidopyropen can be used as a chemical agent for the management of <i>B. tabaci</i> MED whiteflies.
format	article
author	Xuan Zhou Ziyi Zhang Huixin Zheng Qinghe Zhang Jingyu Gong Chuanren Li Ran Wang
author_facet	Xuan Zhou Ziyi Zhang Huixin Zheng Qinghe Zhang Jingyu Gong Chuanren Li Ran Wang
author_sort	Xuan Zhou
title	Physiological and Biochemical Responses to Sublethal Concentrations of the Novel Pyropene Insecticide, Afidopyropen, in Whitefly <i>Bemisia tabaci</i> MED (Q Biotype)
title_short	Physiological and Biochemical Responses to Sublethal Concentrations of the Novel Pyropene Insecticide, Afidopyropen, in Whitefly <i>Bemisia tabaci</i> MED (Q Biotype)
title_full	Physiological and Biochemical Responses to Sublethal Concentrations of the Novel Pyropene Insecticide, Afidopyropen, in Whitefly <i>Bemisia tabaci</i> MED (Q Biotype)
title_fullStr	Physiological and Biochemical Responses to Sublethal Concentrations of the Novel Pyropene Insecticide, Afidopyropen, in Whitefly <i>Bemisia tabaci</i> MED (Q Biotype)
title_full_unstemmed	Physiological and Biochemical Responses to Sublethal Concentrations of the Novel Pyropene Insecticide, Afidopyropen, in Whitefly <i>Bemisia tabaci</i> MED (Q Biotype)
title_sort	physiological and biochemical responses to sublethal concentrations of the novel pyropene insecticide, afidopyropen, in whitefly <i>bemisia tabaci</i> med (q biotype)
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/d2b730e3d25645e0a6f0c26d53f8b30f
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Physiological and Biochemical Responses to Sublethal Concentrations of the Novel Pyropene Insecticide, Afidopyropen, in Whitefly <i>Bemisia tabaci</i> MED (Q Biotype)

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