Toxicity of Manufactured Nanomaterials to Microorganisms

Ge, Yuan; Horst, Allison M.; Kim, Junyeol; Priester, John H.; Welch, Zoë S.; Holden, Patricia A.

doi:10.1002/9781119275855.ch17

Cited by 4 publications

(3 citation statements)

References 222 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The toxicity mechanisms could include membrane disorganization, surface coating-related photocatalytic oxidation and associated cell damage, toxic ion release, and cell-damaging reactive oxygen species (ROS) accumulation. 51,52 The specific toxicity mech- anisms could be related to CNM physicochemical properties (e.g., size and shape), which could vary with CNM type. For example, MWCNTs were more toxic to Bacillus subtilis than graphene, 53 which is consistent with our observation that MWCNTs were more effective on soil prokaryotic communities than graphene.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

“…In monocultures, metal oxide nanomaterials have been demonstrated to be different in their toxicity to cell lines and microorganisms, yet nano-ZnO and nano-CuO appear to be more toxic than other metal oxide nanoparticles. − Herein, the differences in CNM effects among different types of CNMs could derive from differing toxicity mechanisms. The toxicity mechanisms could include membrane disorganization, surface coating-related photocatalytic oxidation and associated cell damage, toxic ion release, and cell-damaging reactive oxygen species (ROS) accumulation. , The specific toxicity mechanisms could be related to CNM physicochemical properties (e.g., size and shape), which could vary with CNM type. For example, MWCNTs were more toxic to Bacillus subtilis than graphene, which is consistent with our observation that MWCNTs were more effective on soil prokaryotic communities than graphene.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Carbonaceous Nanomaterials Have Higher Effects on Soybean Rhizosphere Prokaryotic Communities During the Reproductive Growth Phase than During Vegetative Growth

Shen

Wang

et al. 2018

Environ. Sci. Technol.

Self Cite

View full text Add to dashboard Cite

Carbonaceous nanomaterials (CNMs) can affect agricultural soil prokaryotic communities, but how the effects vary with the crop growth stage is unknown. To investigate this, soybean plants were cultivated in soils amended with 0, 0.1, 100, or 1000 mg kg of carbon black, multiwalled carbon nanotubes (MWCNTs), or graphene. Soil prokaryotic communities were analyzed by Illumina sequencing at day 0 and at the soybean vegetative and reproductive stages. The sequencing data were functionally annotated using the functional annotation of prokaryotic taxa (FAPROTAX) database. The prokaryotic communities were unaffected at day 0 and were altered at the plant vegetative stage only by 0.1 mg kg MWCNTs. However, at the reproductive stage, when pods were filling, most treatments (except 1000 mg kg MWCNTs) altered the prokaryotic community composition, including functional groups associated with C, N, and S cycling. The lower doses of CNMs, which were previously shown to be less agglomerated and thus more bioavailable in soil relative to the higher doses, were more effective toward both overall communities and individual functional groups. Taken together, prokaryotic communities in the soybean rhizosphere can be significantly phylogenetically and functionally altered in response to bioavailable CNMs, especially when soybean plants are actively directing resources to seed production.

show abstract

Section: ■ Results and Discussionmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Carbonaceous Nanomaterials Have Higher Effects on Soybean Rhizosphere Prokaryotic Communities During the Reproductive Growth Phase than During Vegetative Growth

Shen

Wang

et al. 2018

Environ. Sci. Technol.

Self Cite

View full text Add to dashboard Cite

show abstract

“…REO NPs may also disturb honeybee gut microbiota. Previous studies have shown the undesirable effects of various types of NPs on the soil microbiomes and the gut microbiota of animals and insects ( Han et al, 2014 ; Ge et al, 2016 ; Zhu et al, 2018 ; Chen et al, 2021 ). For instance, nano-ZnO and carbonaceous nanoparticles disturb the soil bacterial community structure and change functionally important microbial groups associated with C, N, and S cycling ( Ge et al, 2018 ; Xu et al, 2018a ; Wu et al, 2019 ).…”

Section: Introductionmentioning

confidence: 99%

Nano-La2O3 Induces Honeybee (Apis mellifera) Death and Enriches for Pathogens in Honeybee Gut Bacterial Communities

et al. 2021

Self Cite

View full text Add to dashboard Cite

Honeybees (Apis mellifera) can be exposed via numerous potential pathways to ambient nanoparticles (NPs), including rare earth oxide (REO) NPs that are increasingly used and released into the environment. Gut microorganisms are pivotal in mediating honeybee health, but how REO NPs may affect honeybee health and gut microbiota remains poorly understood. To address this knowledge gap, honeybees were fed pollen and sucrose syrup containing 0, 1, 10, 100, and 1000mgkg−1 of nano-La2O3 for 12days. Nano-La2O3 exerted detrimental effects on honeybee physiology, as reflected by dose-dependent adverse effects of nano-La2O3 on survival, pollen consumption, and body weight (p<0.05). Nano-La2O3 caused the dysbiosis of honeybee gut bacterial communities, as evidenced by the change of gut bacterial community composition, the enrichment of pathogenic Serratia and Frischella, and the alteration of digestion-related taxa Bombella (p<0.05). There were significant correlations between honeybee physiological parameters and the relative abundances of pathogenic Serratia and Frischella (p<0.05), underscoring linkages between honeybee health and gut bacterial communities. Taken together, this study demonstrates that nano-La2O3 can cause detrimental effects on honeybee health, potentially by disordering gut bacterial communities. This study thus reveals a previously overlooked effect of nano-La2O3 on the ecologically and economically important honeybee species Apis mellifera.

show abstract

Threats of Nano-material Contamination in Agroecosystem: What We Know and What We Need to Know

Shakya

Faraz

2021

Sustainable Agriculture Reviews

View full text Add to dashboard Cite

Toxicity of Manufactured Nanomaterials to Microorganisms

Cited by 4 publications

References 222 publications

Carbonaceous Nanomaterials Have Higher Effects on Soybean Rhizosphere Prokaryotic Communities During the Reproductive Growth Phase than During Vegetative Growth

Carbonaceous Nanomaterials Have Higher Effects on Soybean Rhizosphere Prokaryotic Communities During the Reproductive Growth Phase than During Vegetative Growth

Nano-La2O3 Induces Honeybee (Apis mellifera) Death and Enriches for Pathogens in Honeybee Gut Bacterial Communities

Threats of Nano-material Contamination in Agroecosystem: What We Know and What We Need to Know

Contact Info

Product

Resources

About