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首页> 外文期刊>Parasitology Research >Sublethal effects of atrazine and glyphosate on life history traits of Aedes aegypti and Aedes albopictus (Diptera: Culicidae)
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Sublethal effects of atrazine and glyphosate on life history traits of Aedes aegypti and Aedes albopictus (Diptera: Culicidae)

机译：阿特拉津和草甘膦的亚致死作用对埃及伊蚊和白纹伊蚊生活史特征的影响（双翅目：:科）

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Although exposure of mosquito larvae to agricultural chemicals such as herbicides is common and widespread, our understanding of how these chemicals affect mosquito ecology and behavior is limited. This study investigated how an environmentally relevant concentration of two herbicides, atrazine and glyphosate, affects mosquito life history traits. One hundred and fifty (150) first instar Aedes (Stegomyia) aegypti (L.) or Aedes (Stegomyia) albopictus (Skuse) larvae were reared in 1.6 L of live oak leaf (Quercus virginiana) infusion in the presence (5 mg/L) or absence (0 mg/L) of atrazine or glyphosate. The containers were monitored daily to determine the emergence rates, sex ratio, male and female emergence times, and female body size. Emergence rates of A. aegypti from atrazine treatment were significantly higher relative to either glyphosate or control treatments (A. aegypti: atrazine=93±6 % (±95 % CI), glyphosate=82±5 %, control=78±5 %), while emergence rates of A. albopictus in atrazine treatments were significantly higher than in glyphosate treatments but not in controls (A. albopictus: atrazine=84±5 %, glyphosate=76±4 %, control=78±4 %). For both mosquito species, a sex ratio distortion with male bias was observed in control and glyphosate treatments, but not in atrazine treatments (A. aegypti: atrazine=0.90±0.17 (±SE), glyphosate=1.63±0.21, control=1.69±0.26; A. albopictus: atrazine=1.09±0.08, glyphosate=1.88±0.12, control=1.37±0.11). Emergence times for both sexes of the two mosquito species were significantly longer in atrazine treatments compared to glyphosate or control treatments (A. aegypti: females: atrazine=11.20±0.50 (days±95 % CI), glyphosate=9.71±0.23, control=9.87±0.21; males: atrazine=9.46±0.27, glyphosate=8. 80±0.25, control=8.85±0.24; A. albopictus: females: atrazine=17.40±1.70, glyphosate=12.4±0.40, control=12.5±0. 30; males: atrazine=12.96±0.41, glyphosate=10.48±0.24, control=10.64±0.37). For A. albopictus but not A. aegypti, adult females from atrazine treatment had significantly longer wing lengths compared to those from glyphosate or control treatments (A. albopictus: atrazine=3.06±0.07 (mm±95 % CI), glyphosate=2.80±0.07, control=2.83±0.06). These results demonstrate the potential for atrazine, a widely used herbicide, to influence epidemiologically relevant life history traits of mosquitoes.
机译：尽管蚊虫幼虫暴露于农药等除草剂是普遍且普遍的，但我们对这些化学物质如何影响蚊子生态和行为的理解是有限的。这项研究调查了与环境有关的两种除草剂阿特拉津和草甘膦的浓度如何影响蚊子的生活史特征。在存在（5 mg / L）的1.6 L活橡树叶（Quercus virginiana）输注液中饲养一百五十（150）只第一龄伊蚊（Stegomyia）埃及伊蚊（L.）或伊蚊（Stegomyia）albopictus（Skuse）幼虫。 ）或不存在（0 mg / L）阿特拉津或草甘膦。每天对容器进行监测，以确定出苗率，性别比，男女出苗时间和女性体型。相对于草甘膦或对照处理，来自阿特拉津处理的埃及埃及按蚊的出现率显着更高（埃及埃及：阿特拉津= 93±6％（±95％CI），草甘膦= 82±5％，对照= 78±5％ ），而阿特拉津处理中的白粉病菌的出现率显着高于草甘膦治疗，但对照组中则没有（白化病菌：阿特拉津= 84±5％，草甘膦= 76±4％，对照组= 78±4％）。对于这两种蚊子，在对照和草甘膦处理中均观察到男性偏向的性别比畸变，但在阿特拉津处理中未观察到（埃及埃及蚊：阿特拉津= 0.90±0.17（±SE），草甘膦= 1.63±0.21，对照= 1.69± 0.26; A。albopictus：阿特拉津= 1.09±0.08，草甘膦= 1.88±0.12，对照= 1.37±0.11）。与草甘膦或对照处理相比，阿特拉津处理中两种蚊虫的男女出现时间明显更长（埃及埃及：女性：阿特拉津= 11.20±0.50（天±95％CI），草甘膦= 9.71±0.23，对照= 9.87±0.21;雄性：阿特拉津＝ 9.46±0.27，草甘膦＝ 8。80±0.25，对照＝ 8.85±0.24;白纹曲霉：雌性：阿特拉津＝ 17.40±1.70，草甘膦＝ 12.4±0.40，对照＝ 12.5±0。 30;男性：阿特拉津＝ 12.96±0.41，草甘膦＝ 10.48±0.24，对照＝ 10.64±0.37）。对于白粉病而不是埃及埃及灰霉病，通过阿特拉津处理的成年雌性的机翼长度比草甘膦或对照处理的成年女性明显长（白蚁：阿特拉津= 3.06±0.07（mm±95％CI），草甘膦= 2.80± 0.07，对照＝ 2.83±0.06）。这些结果表明，广泛使用的除草剂阿特拉津有可能影响蚊子的流行病学相关生活史特征。

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