Eco-corona reduces the phytotoxic effects of polystyrene nanoplastics in Allium cepa: Emphasizing the role of ROS

Giri, Sayani; Mukherjee, Amitava

doi:10.1016/j.envexpbot.2022.104850

Cited by 26 publications

(6 citation statements)

References 50 publications

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“…after treatment with fulvic acid (a variant of NOM)-coated iron nanoparticles has previously been reported [ 44 ]. The same trend of decreased SOD activity in Allium cepa root has also been reported in eco-coronated PS [ 33 ].…”

Section: Discussionsupporting

confidence: 76%

“…Importantly, humic acid promotes nutrient cycling, which promotes growth [ 32 ]. Another study by Giri et al discovered that when Allium cepa roots were exposed to eco-coronated PS, the particle size increased [ 33 ]. The seed germination rate graphs ( Figure 6 ) indicated that in comparison to Flu−PS and HA, in Flu−PS+HA, the seed germination rate is higher, as also observed in the images ( Figure 7 ).…”

Section: Discussionmentioning

confidence: 99%

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The Effect of Humic Acid and Polystyrene Fluorescence Nanoplastics on Solanum lycopersicum Environmental Behavior and Phytotoxicity

Lakshmikanthan

Chandrasekaran

2022

Plants

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The impacts of nanoplastics (100 nm) on terrestrial systems are unclear at this time. Due to the utilization of sewage sludge, plastic particles are likely to accumulate in these systems. The current research investigates how Solanum lycopersicum seed germination and growth are affected by fluorescence polystyrene (Flu−PS), humic acid (HA), and a Flu−PS+HA combination (tomato). Following 24 h of interaction between Flu−PS and HA, our report details the development of an eco-corona with a significant increase in hydrodynamic size. Plant growth, seed germination, and chlorophyll content were all enhanced by the eco-coronated Flu−PS.Additionally, we discover that seeds treated with Flu−PS+HA demonstrated a germination rate of 90%, compared to just 65.8% for seeds treated with Flu−PS alone. Chlorophyll (a, b, and a + b) content measurements indicated that HA-treated groups and Flu−PS+HA-treated groups had considerably higher levels of chlorophyll (a, b, and a + b) than Flu−PS-treated groups (Flu−PS: 3.18 mg g−1, 2.12 mg g−1, and 3.89 mg g−1, HA: 5.96 mg g−1, 4.28 mg g−1, and 6.36 mg g−1, and Flu−PS+HA: 4.17 mg g−1, 3.01 mg g−1, and 6.08 mg g−1, respectively). In a similar manner, the HA and Flu−PS+HA treatment groups showed lower ROS levels than the Flu−PS treatment groups. In addition, we discovered that the activity of the antioxidant enzymes superoxide dismutase and catalase was lower in the groups treated with HA and Flu−PS+HA than in the groups solely treated with Flu−PS. The results demonstrated that HA significantly lessens the toxicity caused by Flu−PS, while also promoting the germination and growth of Solanum lycopersicum seeds. The related decrease in toxic effects may be ascribed to the establishment of an eco-corona on the Flu−PS. We think that the use of eco-coronas is a technique for safeguarding plants against xenobiotics such as nanoplastics.

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Section: Discussionsupporting

confidence: 76%

Section: Discussionmentioning

confidence: 99%

The Effect of Humic Acid and Polystyrene Fluorescence Nanoplastics on Solanum lycopersicum Environmental Behavior and Phytotoxicity

Lakshmikanthan

Chandrasekaran

2022

Plants

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“…The compounds secreted to the soil by plants and microorganisms are referred also as extracellular polymeric substances (EPS). It has been shown that interaction of PS NP with EPS results in NP aggregation and significant increase in their mean hydrodynamic diameter (MHD), possibly affecting also their uptake ( Giri and Mukherjee, 2022 ).…”

Section: The Impact Of Nanoplastic On Plantsmentioning

confidence: 99%

Plants oxidative response to nanoplastic

et al. 2022

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Pollution of the environment with plastic is an important concern of the modern world. It is estimated that annually over 350 million tonnes of this material are produced, wherein, despite the recycling methods, a significant part is deposited in the environment. The plastic has been detected in the industrial areas, as well as farmlands and gardens in many world regions. Larger plastic pieces degraded in time into smaller pieces including microplastic (MP) and nanoplastic particles (NP). Nanoplastic is suggested to pose the most serious danger as due to the small size, it is effectively taken up from the environment by the biota and transported within the organisms. An increasing number of reports show that NP exert toxic effects also on plants. One of the most common plant response to abiotic stress factors is the accumulation of reactive oxygen species (ROS). On the one hand, these molecules are engaged in cellular signalling and regulation of genes expression. On the other hand, ROS in excess lead to oxidation and damage of various cellular compounds. This article reviews the impact of NP on plants, with special emphasis on the oxidative response.

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“…[20][21][22] Plastic waste is rarely recycled and ends up in terrestrial and aquatic ecosystems, forming "Plastisphere" habitats for diverse microbial communities, including opportunistic human pathogens. [23][24][25] Colonization by antibiotic-resistant bacteria can turn plastic surfaces into hotspots for ARG spread through HGT, posing a threat to organisms and humans. 26 Nanoplastics (NPs) (<1 μm), resulting from the breakdown of aged plastics or direct release through industrial abrasives and personal care products, are difficult to remove through water treatment systems and interact differently with microorganisms due to their size.…”

Section: Introductionmentioning

confidence: 99%

“…26 Nanoplastics (NPs) (<1 μm), resulting from the breakdown of aged plastics or direct release through industrial abrasives and personal care products, are difficult to remove through water treatment systems and interact differently with microorganisms due to their size. 18,21,23,27 NPs are created through aged plastic by processes like ultraviolet radiation and microbial degradation, resulting in variations in surface functional groups and surface charges. 28,29 However, there is a limited understanding of the effects of NPs on the transmission of ARGs.…”

Section: Introductionmentioning

confidence: 99%

Charged nanoplastics differentially affect the conjugative transfer of antibiotic resistance genes

Wang

Liang

et al. 2023

Environ. Sci.: Nano

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Eco-corona reduces the phytotoxic effects of polystyrene nanoplastics in Allium cepa: Emphasizing the role of ROS

Cited by 26 publications

References 50 publications

The Effect of Humic Acid and Polystyrene Fluorescence Nanoplastics on Solanum lycopersicum Environmental Behavior and Phytotoxicity

The Effect of Humic Acid and Polystyrene Fluorescence Nanoplastics on Solanum lycopersicum Environmental Behavior and Phytotoxicity

Plants oxidative response to nanoplastic

Charged nanoplastics differentially affect the conjugative transfer of antibiotic resistance genes

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