• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Applied Microbiology >Oral or Topical Exposure to Glyphosate in Herbicide Formulation Impacts the Gut Microbiota and Survival Rates of Honey Bees
【24h】

Oral or Topical Exposure to Glyphosate in Herbicide Formulation Impacts the Gut Microbiota and Survival Rates of Honey Bees

机译：除草剂配方中草甘膦的口腔或局部暴露会影响肠道微生物酵母和蜂蜜蜜蜂的存活率

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Honey bees are important agricultural pollinators that rely on a specific gut microbiota for the regulation of their immune system and defense against pathogens. Environmental stressors that affect the bee gut microbial community, such as antibiotics and glyphosate, can indirectly compromise bee health. Most of the experiments demonstrating these effects have been done under laboratory conditions with pure chemicals. Here, we investigated the oral and topical effects of various concentrations of glyphosate in a herbicide formulation on the honey bee gut microbiota and health under laboratory and field conditions. Under all of these conditions, the formulation, dissolved in sucrose syrup or water, affected the abundance of beneficial bacteria in the bee gut in a dose-dependent way. Mark-recapture experiments also demonstrated that bees exposed to the formulation were more likely to disappear from the colony, once reintroduced after exposure. Although no visible effects were observed for hives exposed to the formulation in field experiments, challenge trials with the pathogen Serratia marcescens , performed under laboratory conditions, revealed that bees from hives exposed to the formulation exhibited increased mortality compared with bees from control hives. In the field experiments, glyphosate was detected in honey collected from exposed hives, showing that worker bees transfer xenobiotics to the hive, thereby extending exposure and increasing the chances of exposure to recently emerged bees. These findings show that different routes of exposure to glyphosate-based herbicide can affect honey bees and their gut microbiota.IMPORTANCE The honey bee gut microbial community plays a vital role in immune response and defense against opportunistic pathogens. Environmental stressors, such as the herbicide glyphosate, may affect the gut microbiota, with negative consequences for bee health. Glyphosate is usually sprayed in the field mixed with adjuvants, which enhance herbicidal activity. These adjuvants may also enhance undesired effects in nontargeted organisms. This seems to be the case for glyphosate-based herbicide on honey bees. As we show in this study, oral exposure to either pure glyphosate or glyphosate in a commercial herbicide formulation perturbs the gut microbiota of honey bees, and topical exposure to the formulation also has a direct effect on honey bee health, increasing mortality in a dose-dependent way and leaving surviving bees with a perturbed microbiota. Understanding the effects of herbicide formulations on honey bees may help to protect these important agricultural pollinators.
机译：蜂蜜蜜蜂是重要的农业调查员，依赖于特定的肠道微生物群，用于调节其免疫系统和对抗病原体的防御。影响蜜蜂肠道微生物群落的环境压力源，例如抗生素和草甘膦，可以间接损害蜜蜂健康。在具有纯化学品的实验室条件下，大多数实验已经在实验室条件下进行。在这里，我们研究了各种浓度草甘膦在蜂蜜蜂肠道微生物和实验室条件下的健康中的草甘膦制剂中的口腔和局部效果。在所有这些条件下，溶解在蔗糖糖浆或水中的配方影响了蜂肠中的丰富细菌以剂量依赖的方式。 MARK-RECAPTURE实验还表明，暴露于制剂的蜜蜂更可能从殖民地中消失，一旦暴露后重新引发。虽然未观察到暴露于现场实验中的制剂的荨麻疹的可见效果，但在实验室条件下进行的与病原体乳房的攻击试验表明，与来自对照荨麻疹的蜜蜂相比，蜂巢的蜂巢表现出增加的死亡率。在现场实验中，在从暴露的荨麻疹收集的蜂蜜中检测到草甘膦，表明工人将异卵虫转移到蜂巢中，从而延长暴露并增加暴露于最近出现的蜜蜂的机会。这些发现表明，不同的暴露于基于草甘膦的除草剂的途径可以影响蜂蜜蜜蜂和他们的肠道微生物。分量称蜂蜜蜂肠道微生物群落在免疫应答和防御机会主义病原体中起着至关重要的作用。环境压力源，例如除草剂草甘膦，可能会影响肠道微生物群，对蜂蜜的负面影响。草甘膦通常喷涂在与佐剂混合的场中，这提高了除草活性。这些佐剂还可以增强非靶向生物体的不期望的作用。蜂蜜蜜蜂基于草甘膦的除草剂似乎是这种情况。正如我们在本研究中所展示的那样，口服暴露于纯草甘膦或草甘膦在商业除草剂制剂中，蜂蜜蜜蜂的肠道微生物，并且局部暴露于制剂上也对蜂蜜蜂的健康有直接影响，提高了剂量的死亡率 - 依赖的方式，并用扰动的微生物群离开幸存的蜜蜂。了解除草剂配方对蜂蜜蜜蜂的影响可能有助于保护这些重要的农业调查员。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号