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协同作用,生物化学变化和形态生理学影响是由Sitophilus zeamais中的烯和烯胺诱导的
Luciano de Souza1, Maria das Graças Cardoso2, Isaac Konig3
1Departamento de Química, Universidade Federal de Lavras (UFLA), Lavras, MG 37200-000, Brazil; Departamento de Entomologia, Universidade Federal de Lavras (UFLA), Lavras, MG 37200-000, Brazil.
Pesticide biochemistry and physiology
|July 31, 2025
概括
像卡瓦克罗尔和甲这样的天然化合物对储存的谷物害虫Sitophilus zeamais表现出强大的杀虫活性. 这些化合物还表现出选择性毒性,提供了潜在的环保害虫控制解决方案.
科学领域:
- 农业昆虫学 农业昆虫学
- 自然产品化学 自然产品化学
- 虫害管理 虫害管理 虫害管理
背景情况:
- 塞托菲勒斯 (Sitophilus zeamais) 是储存谷物的重要害虫,造成了巨大的经济损失.
- 传统的杀虫剂对环境构成风险,并有助于害虫耐药性.
- 探索用于害虫控制的天然化合物对于可持续农业至关重要.
研究的目的:
- 评估各种天然化合物及其混合物对成年S. zeamais. 的杀虫疗效.
- 评估这些化合物对关键酶和昆虫病原学的影响.
- 为了确定这些化合物对非目标有益昆虫的选择性,Tetrastichus howardi.
主要方法:
- 生物测试使用纯化合物和二进制混合物进行,这些化合物包括L-(-) - 卡,卡瓦克罗尔,β-citronellol, (E) -anethole, (E) -cinnamaldehyde,p-anisaldehyde和eugenol.
- 进行了酶活性测定 (甲酸酶,谷氨-S转移酶,谷氨过氧化酶,α-氨酸酶,脂酶) 和组织病理学检查.
- 通过评估对幼虫寄生虫T. howardi.的影响来评估选择性.
主要成果:
- 卡尔瓦克罗尔, (E) 甲和p-anisaldehyde对S. zeamais.表现出最高的杀虫活性.
- p-anisaldehyde显著改变了氧化应激酶和消化酶活动,而卡瓦克罗尔和 (E) - 甲则引起了显著的遗传病学损伤.
- (E) - 丁甲与非目标生物体T. howardi. 显示出最好的兼容性.
结论:
- 一些天然化合物,特别是卡瓦克罗尔, (E) - 丁甲和p-anisaldehyde,对S. zeamais.具有显著的杀虫性能.
- 这些化合物诱导S. zeamais的生理和病理学变化,导致它们的死亡率.
- 这些发现表明,这些天然化合物是储存谷物中综合害虫管理策略的有希望的替代品,其中 (E) - 甲显示出有利的选择性.
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