Glyphosate impairs collective thermoregulation in bumblebees

Science, Journal Year: 2022, Volume and Issue: 376(6597), P. 1122 - 1126

Published: June 2, 2022

Insects are facing a multitude of anthropogenic stressors, and the recent decline in their biodiversity is threatening ecosystems economies across globe. We investigated impact glyphosate, most commonly used herbicide worldwide, on bumblebees. Bumblebee colonies maintain brood at high temperatures via active thermogenesis, prerequisite for colony growth reproduction. Using within-colony comparative approach to examine effects long-term glyphosate exposure both individual collective thermoregulation, we found that whereas weak level individual, ability necessary decreased by more than 25% during periods resource limitation. For pollinators our heavily stressed ecosystems, carries hidden costs have so far been largely overlooked.

Language: Английский

---

Pesticides have negative effects on non-target organisms

Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)

Published: Feb. 13, 2025

Pesticides affect a diverse range of non-target species and may be linked to global biodiversity loss. The magnitude this hazard remains only partially understood. We present synthesis pesticide (insecticide, herbicide fungicide) impacts on multiple organisms across trophic levels based 20,212 effect sizes from 1,705 studies. For plants, animals (invertebrate vertebrates) microorganisms (bacteria fungi), we show negative responses the growth, reproduction, behaviour other physiological biomarkers within terrestrial aquatic systems. formulated for specific taxa negatively affected groups, e.g. insecticidal neonicotinoids affecting amphibians. Negative effects were more pronounced in temperate than tropical regions but consistent between environments, even after correcting field-realistic environmentally relevant exposure scenarios. Our results question sustainability current use support need enhanced risk assessments reduce risks ecosystems. Wan et al. found that insecticides, fungicides herbicides have

Language: Английский

---

Effects of Free or Immobilized Bacterium Stenotrophomonas acidaminiphila Y4B on Glyphosate Degradation Performance and Indigenous Microbial Community Structure

Journal of Agricultural and Food Chemistry, Journal Year: 2022, Volume and Issue: 70(43), P. 13945 - 13958

Published: Oct. 24, 2022

The overuse of glyphosate has resulted in serious environmental contamination. Thus, effective techniques to remove from the environment are required. Herein, we isolated a novel strain Stenotrophomonas acidaminiphila Y4B, which completely degraded and its major metabolite aminomethylphosphonic acid (AMPA). Y4B over broad concentration range (50–800 mg L–1), with degradation efficiency 98% within 72 h (50 L–1). via AMPA pathway by cleaving C–N bond, followed subsequent metabolism. demonstrated strong competitiveness substantially accelerated different soils, degrading 71.93 89.81% (400 kg–1) 5 days sterile nonsterile respectively. immobilized cells were more efficient than their free they displayed excellent biodegradation sediment–water system. Taken together, is an ideal degrader for bioremediation glyphosate-contaminated sites.

Language: Английский

---

EU need to protect its environment from toxic per- and polyfluoroalkyl substances

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 876, P. 162770 - 162770

Published: March 10, 2023

The Environmental Protection Agencies (EPAs) of Denmark, Sweden, Norway, Germany and the Netherlands submitted a proposal to European Chemical Agency (ECHA) in February 2023 calling for ban use toxic industrial chemicals per- polyfluoroalkyl substances (PFAS). These are highly causing elevated cholesterol, immune suppression, reproductive failure, cancer neuro-endocrine disruption humans wildlife being significant threat biodiversity human health. main reason is recent findings flaws transition PFAS replacements that leading widespread pollution. Denmark was first country banning PFAS, now other EU countries support restrictions these carcinogenic, endocrine disruptive immunotoxic chemicals. proposed plan among most extensive received by ECHA 50 years. initiate establishment groundwater parks try protect its drinking water. areas free agricultural activities nutritious sewage sludge secure water xenobiotic including PFAS. pollution also reflects lack comprehensive spatial temporal environmental monitoring programs EU. Such should include key indicator species across ecosystems livestock, fish wildlife, facilitate detection early ecological warning signals sustain public Simultaneously with inferring total ban, push more persistent, bioaccumulative (PBT) be listed on Stockholm Convention (SC) Annex A such as PFOS (perfluorooctane sulfonic acid) currently SCs B. combination regulative combined pan-European biomonitoring programs, would pave way forward cleaner environment health

Language: Английский

---

Terrestrial ecotoxicity of glyphosate, its formulations, and co-formulants: evidence from 2010–2023

Environmental Sciences Europe, Journal Year: 2023, Volume and Issue: 35(1)

Published: July 8, 2023

Abstract Glyphosate (GLY), the most widely used herbicide in world, is frequently detected various environmental matrices, including soil, foundation of agriculture. In practice, more than 2000 GLY-based (GBH) products are used, consisting one or active ingredients (AIs) and so-called “inert” co-formulants that increase efficacy AIs. However, focus ecotoxicological assessments mainly on AIs, while organisms exposed to complex pesticide formulations under real-world conditions. Overall, effects non-target indicate a broad range biochemical physiological modes action, which contrasts with general assumption herbicides specific act only target plants. Both GLY alone GBHs have unintended side-effects many terrestrial organisms, plants, microorganisms, insects, spiders, earthworms, as well vertebrates such amphibians, reptiles, mammals. One triggering mechanisms for these oxidative stress consequences parameters DNA damage. addition, disruptions physiological, behavioral ecological processes been reported. Most studies examined short-term single application GLY/GBH species. agricultural practice applying two three times during cultivation season over an extended period time, interactions other pesticides agrochemicals applied same field, within field landscape rarely considered. vast majority cases, toxicity exceeds GLY, demonstrating supposedly inert either toxic their own right interact add The chemical diversity different non-disclosure make it difficult attribute substances GBH. Moreover, impurities (e.g., heavy metals arsenic, chromium, cobalt) pose additional environment food safety risks. These impacts even critical because so distributed worldwide pollutants stressors. Based available literature ecotoxicity, given drastic decline biodiversity, we conclude continued high use GBHs, resulting increased exposure risk, cannot be considered ecologically sustainable.

Language: Английский

---

A perspective on green, blue, and grey spaces, biodiversity, microbiota, and human health

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 892, P. 164772 - 164772

Published: June 10, 2023

Humans have lived from equator to poles for millennia but are now increasingly intruding into the wild spaces of other species and steadily extruding ourselves our own spaces, with a profound impact on: relationship natural world; survival species; pollution; climate change; etc. We yet grasp how these changes directly health. The primary focus this paper is on beneficial influence proximity environment. summarize evidence associations between exposure green space blue improvements in In contrast, grey - urban landscape largely presents hazards as well reducing isolating us discuss various hypotheses that might explain why green, blue, affect health particularly importance biodiversity hypothesis role microbiota. possible mechanisms routes air, soil, water. highlight problem assessment, noting many current tools not fit purpose understanding space, aerosols, soils, briefly differences indigenous perspectives nature environment more dominant international-science view. Finally, we present research gaps future directions, focusing ways which even absence full by begin implement policies restore some balance aim large global burden ill

Language: Английский

---

Recent advances in insect thermoregulation

Journal of Experimental Biology, Journal Year: 2023, Volume and Issue: 226(18)

Published: Sept. 12, 2023

Ambient temperature (Ta) is a critical abiotic factor for insects that cannot maintain constant body (Tb). Interestingly, Ta varies during the day, between seasons and habitats; must constantly cope with these variations to avoid reaching deleterious effects of thermal stress. To minimize risks, have evolved set physiological behavioral thermoregulatory processes as well molecular responses allow them survive perform under various conditions. These strategies range from actively seeking an adequate environment, cooling down through evaporation fluids synthesizing heat shock proteins prevent damage at cellular level after exposure. In contrast, endothermy may insect fight parasitic infections, fly within large facilitate nest defense. Since May (1979), Casey (1988) Heinrich (1993) reviewed literature on thermoregulation, hundreds scientific articles been published subject new insights in several groups emerged. particular, technical advancements provided better understanding mechanisms underlying processes. This present Review aims provide overview findings focus groups, including blood-feeding arthropods, explore impact thermoregulation exposure immunity pathogen development. Finally, it provides into current knowledge gaps field discusses context climate change.

Language: Английский

---

The effects of glyphosate, pure or in herbicide formulation, on bumble bees and their gut microbial communities

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 872, P. 162102 - 162102

Published: Feb. 9, 2023

Language: Английский

---

Cellular Response and Molecular Mechanism of Glyphosate Degradation by Chryseobacterium sp. Y16C

Journal of Agricultural and Food Chemistry, Journal Year: 2023, Volume and Issue: 71(17), P. 6650 - 6661

Published: April 21, 2023

Glyphosate is one of the most widely used herbicides worldwide. Unfortunately, continuous use glyphosate has resulted in serious environmental contamination and raised public concern about its impact on human health. In our previous study, Chryseobacterium sp. Y16C was isolated characterized as an efficient degrader that can completely degrade glyphosate. However, biochemical molecular mechanisms underlying biodegradation ability remain unclear. this physiological response to stimulation at cellular level. The results indicated that, process degradation, induced a series responses membrane potential, reactive oxygen species levels, apoptosis. antioxidant system activated alleviate oxidative damage caused by Furthermore, novel gene, goW, expressed gene product, GOW, enzyme catalyzes with putative structural similarities glycine oxidase. GOW encodes 508 amino acids, isoelectric point 5.33 weight 57.2 kDa, which indicates it displays maximum activity 30 °C pH 7.0. Additionally, metal ions exhibited little influence except for Cu2+. Finally, substrate, catalytic efficiency higher than glycine, although opposite were observed affinity. Taken together, current study provides new insights deeply understand reveal degradation bacteria.

Language: Английский

---

Environmental impacts of genetically modified crops

Science, Journal Year: 2024, Volume and Issue: 385(6712)

Published: Aug. 29, 2024

Genetically modified (GM) crops have been adopted by some of the world's leading agricultural nations, but full extent their environmental impact remains largely unknown. Although concerns regarding direct effects GM declined, led to indirect changes in practices, including pesticide use, expansion, and cropping patterns, with profound implications. Recent studies paint a nuanced picture these impacts, mixed crop adoption on biodiversity, deforestation, human health that vary trait geographic scale. New or gene-edited different traits would likely impacts.

Language: Английский

---