Plant Growth Promotion and Biocontrol by Endophytic and Rhizospheric Microorganisms From the Tropics: A Review and Perspectives

Frontiers in Sustainable Food Systems, Год журнала: 2022, Номер 6

Опубликована: Март 21, 2022

Currently, the tropics harbor a wide variety of crops to feed global population. Rapid population expansion and consequent major demand for food agriculture-based products generate initiatives tropical forest deforestation, which contributes land degradation loss macro micronative biodiversity ecosystems. Likewise, entire dependence on fertilizers pesticides also negative impacts environmental human health. To guarantee current future safety, as well natural resource preservation, systems sustainable in have attracted substantial attention worldwide. Therefore, use beneficial plant-associated microorganisms is promising way solve issues concerning modern agriculture environment. Efficient strains bacteria fungi are rich source that might improve crop yield numerous biological ways, such nitrogen fixation, hormone production, mobilization insoluble nutrients, mechanisms related plant biotic abiotic stress alleviation. Additionally, these exhibit great potential biocontrol phytopathogens pest insects. This review addresses research regarding endophytic rhizospheric associated with plants alternative control diseases enhance production minimize ecological damage

Язык: Английский

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Pesticide mixtures detected in crop and non-target wild plant pollen and nectar

The Science of The Total Environment, Год журнала: 2023, Номер 879, С. 162971 - 162971

Опубликована: Март 21, 2023

Cultivation of mass flowering entomophilous crops benefits from the presence managed and wild pollinators, who visit flowers to forage on pollen nectar. However, management these typically includes application pesticides, which may pose a hazard for pollinators foraging in an agricultural environment. To determine levels potential exposure their concentration nectar need assessing, both within beyond target crop plants. We selected ten pesticide compounds one metabolite analysed occurrence (Brassica napus) plant (Rubus fruticosus agg.), was field edges. Nectar plants were collected five spring winter sown B. napus fields Ireland, tested residues, using QuEChERS Liquid Chromatography tandem spectrometry (LC-MS/MS). Pesticide residues detected Most detections with no recorded respective that year, but higher concentrations observed recently treated fields. Overall, more than plant, had highest mean residues. All matrices contaminated at least three compounds, most frequently fungicides. The common compound mixture comprised fungicides azoxystrobin, boscalid, neonicotinoid insecticide clothianidin, not applied Our results indicate persistent like neonicotinoids, should be continuously monitored fate toxicological evaluation mixtures identified present study performed, impacts insects exposed them.

Язык: Английский

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Moving past neonicotinoids and honeybees: A systematic review of existing research on other insecticides and bees

Environmental Research, Год журнала: 2023, Номер 235, С. 116612 - 116612

Опубликована: Июль 14, 2023

Synthetic pesticides (e.g. herbicides, fungicides and insecticides) are used widely in agriculture to protect crops from pests, weeds disease. However, their use also comes with a range of environmental concerns. One key concern is the effect insecticides on non-target organisms such as bees, who provide pollination services for wild plants. This systematic literature review quantifies existing research bees broadly, then focuses more specifically non-neonicotinoid non-honeybees. We find that articles honeybees (Apis sp.) account 80% all research, other combined making up 20%. Neonicotinoids were studied 34% across most insecticide class non-honeybees overall, almost three times many studies than second class. Of classes non-honeybees, pyrethroids organophosphates followed by carbamates, represented bee taxa bumblebees (Bombus), leaf-cutter (Megachile) mason (Osmia). Research has taken place several countries, highest numbers Brazil US, notable gaps countries Asia, Africa Oceania. Mortality was type, while sub-lethal effects behaviour less studied. Few tested how influenced multiple pressures, climate change co-occurring (cocktail effects). As anthropogenic pressures do not occur isolation, we suggest future addresses these knowledge gaps. Given changing global patterns use, increasing inclusion both pesticide risk assessment, there need expanding beyond its current state ensure strong scientific evidence base development assessment associated policy.

Язык: Английский

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Health effects of herbicides and its current removal strategies

Bioengineered, Год журнала: 2023, Номер 14(1)

Опубликована: Сен. 25, 2023

The continually expanding global population has necessitated increased food supply production. Thus, agricultural intensification been required to keep up with demand, resulting in a sharp rise pesticide use. aids the prevention of potential losses caused by pests, plant pathogens, and weeds, but excessive use over time accumulated its occurrence environment subsequently rendered it one emerging contaminants concern. This review highlights sources classification herbicides their fate environment, special focus on effects human health methods remove herbicides. impacts discussion was relation toxic effects, cell disruption, carcinogenic impacts, negative fertility neurological impacts. removal treatments described herein include physicochemical, biological, chemical treatment approaches, advanced oxidation processes (AOPs). Also, alternative, green, sustainable options were discussed shed insight into effective technologies for To conclude, this serves as stepping stone better

Язык: Английский

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Ecotoxicological effects of common fungicides on the eastern honeybee Apis cerana cerana (Hymenoptera)

The Science of The Total Environment, Год журнала: 2023, Номер 868, С. 161637 - 161637

Опубликована: Янв. 14, 2023

The widespread use of fungicides for plant protection has increased the potential pollinator exposure. This study therefore aimed at assessing acute and chronic effects on pollinators. For this purpose, oral toxicity common azoxystrobin, pyraclostrobin, boscalid to Eastern honeybee Apis cerana cerena was first evaluated, multiple aspects were investigated after exposure a one-tenth medium lethal dose (LD50) 10 days. revealed that LD50 values pyraclostrobin adult honeybees 12.7 μg/bee, 36.6 >119 respectively. Midgut epithelial cells fungicide caused intercellular spaces varying degrees vacuolization. Exposure these three their binary mixtures significantly affected glycerophospholipid, alanine, aspartate, glutamate metabolism in midguts. Additionally, relative composition Lactobacillus, dominant functional genus guts decreased microbial balance disrupted. All induced strong transcriptional upregulation genes associated with immune response encoding enzymes related oxidative phosphorylation metabolism, including abaecin, apidaecin, hymenotaecin, cyp4c3, cyp6a2 hbg3. Our provides important insight understanding commonly used nontarget contributes more comprehensive assessment ecological environmental safety.

Язык: Английский

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Neonicotinoids in the agroecosystem: In-field long-term assessment on honeybee colony strength and microbiome

The Science of The Total Environment, Год журнала: 2020, Номер 762, С. 144116 - 144116

Опубликована: Дек. 16, 2020

Язык: Английский

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Review on Sublethal Effects of Environmental Contaminants in Honey Bees (Apis mellifera), Knowledge Gaps and Future Perspectives

International Journal of Environmental Research and Public Health, Год журнала: 2021, Номер 18(4), С. 1863 - 1863

Опубликована: Фев. 14, 2021

Honey bees and the pollination services they provide are fundamental for agriculture biodiversity. Agrochemical products other classes of contaminants, such as trace elements polycyclic aromatic hydrocarbons, contribute to general decline bees’ populations. For this reason, effects, particularly sublethal effects contaminants need be investigated. We conducted a review existing literature regarding type evaluated in Apis mellifera, collecting information about regions, methodological approaches, honey life stages. Europe North America regions which A. mellifera biological responses were mostly studied most investigated compounds insecticides. was more laboratory than field conditions. Through observation different examined, we found that there several knowledge gaps should addressed, within enzymatic molecular responses, those immune system genotoxicity. The importance developing an integrated approach combines at levels, from organism population, needs highlighted order evaluate impact anthropogenic contamination on pollinator species.

Язык: Английский

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Non-insecticide pesticide impacts on bees: A review of methods and reported outcomes

Agriculture Ecosystems & Environment, Год журнала: 2021, Номер 314, С. 107423 - 107423

Опубликована: Апрель 7, 2021

Язык: Английский

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Antifungal weapons of Lysobacter , a mighty biocontrol agent

Environmental Microbiology, Год журнала: 2021, Номер 23(10), С. 5704 - 5715

Опубликована: Июль 19, 2021

Summary Bacteria interact with fungi in a variety of ways to inhibit fungal growth, while the underlying mechanisms remain only partially characterized. The plant‐beneficial Bacillus and Pseudomonas species are well‐known antifungal biocontrol agents, whereas Lysobacter far less studied. Members easy grow fermenters safe humans, animals plants. These environmentally ubiquitous bacteria use diverse arsenal weapons prey on other microorganisms, including oomycetes. small molecular toxins secreted by represent long‐range effective against filamentous fungi. hydrolytic enzymes act as intermediate‐range non‐filamentous contact‐dependent killing devices proposed work short‐range weapons. We describe here structure, biosynthetic pathway, action mode applications one best‐characterized weapons, heat‐stable factor (HSAF) produced enzymogenes . discuss how flagellar type III secretion system has evolved into an enzyme machine for highlight intricate mechanism coordinating production weapon, HSAF device, VI system. also overview regulatory involving specific transcription factors bacterial second messenger c‐di‐GMP.

Язык: Английский

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Reducing overall herbicide use may reduce risks to humans but increase toxic loads to honeybees, earthworms and birds

Environmental Sciences Europe, Год журнала: 2022, Номер 34(1)

Опубликована: Май 13, 2022

Abstract Background Pesticide use has been associated with risks for human health and an overall decline in biodiversity. Although herbicides are the most commonly used pesticides worldwide, they have received less attention this debate. We investigated extent to which long-term trends herbicide Austria influence potential toxic exposures non-target organisms humans. analyzed official sales data of 101 active ingredients (AIs) approved between 2010 2019 regarding their ecotoxicological properties based on lethal doses (LD 50 LC ) weighed by persistence environment (DT honeybees ( Apis mellifera ), earthworms Eisenia fetida birds Serinus serinus ). Human were qualitatively assessed hazard statements AIs used. Results In Austria, amounts sold decreased significantly 24% from 1480 1123 tonnes 2019. This also led a considerable decrease classified H-statements EU Pesticides Database: − 71% acute inhalation toxicity, 58% reproductive toxicity,− 47% specific target organ toxicity. Yet, 36% still as highly hazardous according Action Network. Surprisingly, over same period, loads increased 487% (oral exposure), while 498%, 580%. can be attributed shift toward more acutely especially persistent AIs. The problematic AI honeybees, earthworms, humans was diquat. further ranking varied considerably depending organism. It is important note that load assessment, like environmental risk assessments, evaluates but not actual fatalities or real-world exposure. Conclusions Our results show trade-off toxicological hazards other organisms. These interdependencies need considered when implementing pesticide reduction targets protect public biodiversity, such EU´s “farm-to-fork” strategy, aims reduce synthetic pesticides.

Язык: Английский

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