A new look at the potential role of marine plastic debris as a global vector of toxic benthic algae

Leite, Isabel do Prado; Menegotto, André; Lana, Paulo da Cunha; Mafra, Luiz L.

doi:10.1016/j.scitotenv.2022.156262

Cited by 17 publications

(5 citation statements)

References 93 publications

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“…or Prorocentrum sp., with the presence of harmful species [ 18 , 21 ]. As plastics pollution and harmful benthic algal blooms have both increased over the recent decades, do Prado Leite et al [ 29 ] suggest that their interactive effects can become a major threat to marine ecosystems and human health. In our study, Alexandrium minutum was found in the three lagoons, while Prorocentrum cordatum was found in particular in Prevost and Biguglia lagoons.…”

Section: Discussionmentioning

confidence: 99%

“…Another recent study has assessed the potential role of floating plastics as vectors of toxin transfer from three widespread benthic dinoflagellates, Gambierdiscus spp., Ostreopsis cf. ovata and Prorocentrum lima , and specifies that the related risks of colonization of plastics will be significant in the Mediterranean Sea [ 29 ]. Some biofilm organisms from plastic debris may be opportunistic pathogens such as specific members of the genus Vibrio [ 18 , 30 , 31 ] whose presence is however not systematically detected within the plastisphere [ 32 ].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Harmful algae and pathogens on plastics in three mediterranean coastal lagoons

Pasqualini

Garrido²,

Cecchi

et al. 2023

Heliyon

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Harmful algae and pathogens on plastics in three mediterranean coastal lagoons

Pasqualini

Garrido²,

Cecchi

et al. 2023

Heliyon

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“…In addition to effects elicited by the particles themselves, additives such as UV-stabilizers [13] or plasticizers [14] added to the polymers may leach from the particles and induce toxic responses [15,16]. Pollutants or pathogens may attach to the particle surfaces and induce toxic effects upon ingestion (vector effect, [17,18], but see also [19,20]).…”

Section: Introductionmentioning

confidence: 99%

Effects of dissolved organic matter on the toxicity of micro- and nanoplastic particles to Daphnia - a meta-analysis

Salomon,

Grubmüller,

Kropf

et al. 2024

Micropl.&Nanopl.

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Effects of micro- and nanoplastic particles (MNP) on organisms have been increasingly reported in recent years, with a large number of studies conducted on water fleas of the genus Daphnia. Most of the available studies used pristine particles that have not been exposed to the environment or to organic substances. In natural environments, however, organic substances like dissolved organic matter (DOM) attach to the MNP, forming an ecocorona on the particles’ surface. How the formation of an ecocorona influences MNP toxicity is still uncertain. While some studies suggest that DOM can mitigate the negative effects of MNP on organisms, other studies did not find such associations. In addition, it is unclear whether the DOM attached to the particles’ surface attenuates the effects of MNP directly or whether co-exposure with DOM solved in the medium attenuates MNP toxicity indirectly, for instance by increasing Daphnia‘s resilience to stressors in general. To draw more solid conclusions about the direction and size of the mediating effect of DOM on MNP-associated immobilization in Daphnia spp., we synthesized evidence from the published literature and compiled 305 data points from 13 independent studies. The results of our meta-analysis show that the toxic effects of MNP are likely reduced in the presence of certain types of DOM in the exposure media. We found similar mediating effects when MNP were incubated in media containing DOM before the exposure experiments, although to a lesser extent. Future studies designed to disentangle the effects of DOM attached to the MNP from the general effects of DOM in the exposure medium will contribute to a deeper mechanistic understanding of MNP toxicity in nature and enhance the reliability of MNP risk assessment. Graphical Abstract

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“…On an organismic level, effects on body growth, reproduction and survival have been reported, among others (Lahive et al, 2019;Sussarellu et al, 2016;Ziajahromi et al, 2017). In addition to effects elicited by the particles themselves, additives such as UV-stabilizers (Song et al, 2021) or plasticizers (Y. added to the polymers may leach from the particles and induce toxic responses (Zimmermann et al, 2020).Pollutants or pathogens may attach to the particle surfaces and induce toxic effects upon ingestion (vector effect; Rochman et al 2013;Gkoutselis et al, 2021; but see also do Prado Leite et al, 2022 andKoelmans et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Effects of dissolved organic matter and ecocorona formation on the toxicity of micro- and nanoplastic particles to Daphnia - A meta-analysis

Salomon,

Grubmüller,

Kropf

et al. 2023

Preprint

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Significant quantities of micro- and nanoplastic particles (MNP) end up in theenvironment, either due to larger plastic debris breaking down or by entering directlyas MNPs. Effects of MNPs on organisms have been increasingly reported in recentyears, with a large number of studies conducted on water fleas of the genus Daphnia.Most of the available studies used pristine particles that have not been exposed to theenvironment or to organic substances. In natural environments, however, proteins,organic substances and, if the particles are large enough, bacteria attach to MNP,forming an ecocorona or biofilm on the particles’ surface. How the formation of anecocorona influences MNP toxicity is still uncertain. While some studies suggest thatecocorona formation can mitigate the negative effects of MNP on organisms, otherstudies did not find such associations. In addition, it is unclear whether the ecocoronaitself is attenuating the effects of MNP or whether dissolved organic matter (DOM)affects toxicity indirectly such as by increasing Daphnia‘s resilience to stressors ingeneral. To draw more solid conclusions about the direction and size of the mediatingeffect of DOM and ecocorona formation on MNP-associated immobilization in Daphniaspp., we synthesized evidence from the published literature and compiled 305 datapoints from 13 independent studies. The results of our meta-analysis show that thetoxic effects of MNP are likely reduced in the presence of certain types of DOM. Weobserved similar mediating effects when MNP were incubated in media containingDOM before the exposure experiments, although to a lesser extent. Future studiesdesigned to disentangle the effects of the ecocorona itself from the general effects ofDOM will contribute to a deeper mechanistic understanding of MNP toxicity in natureand enhance the reliability of MNP risk assessment.

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A new look at the potential role of marine plastic debris as a global vector of toxic benthic algae

Cited by 17 publications

References 93 publications

Harmful algae and pathogens on plastics in three mediterranean coastal lagoons

Harmful algae and pathogens on plastics in three mediterranean coastal lagoons

Effects of dissolved organic matter on the toxicity of micro- and nanoplastic particles to Daphnia - a meta-analysis

Effects of dissolved organic matter and ecocorona formation on the toxicity of micro- and nanoplastic particles to Daphnia - A meta-analysis

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