Interaction between bacterial enteric pathogens and aquatic macrophytes. Can Salmonella be internalized in the plants used in phytoremediation processes?

Chiudioni, Filippo; Marcheggiani, Stefania; Puccinelli, Camilla; Mancini, Laura

doi:10.1080/15226514.2020.1786797

Cited by 2 publications

(1 citation statement)

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“…Although wetland system construction represents a promising technology, existing systems should be closely studied to avoid future environmental impacts. In addition to the emission of greenhouse gases [106], recent studies have shown that the adhesion, internalization, and colonization of Salmonella napoli on the macrophyte P. australis could make that plant a source of propagation and transmission of pathogens in watercourses and create risk situations for human and animal health [107]. As such, the importance of detailed studies of wetland system species and their management before their use and implantation must be stressed-although the elevated efficiency and low costs of wetland systems as compared to other processes for the remediation of contaminated waters makes them very attractive alternatives.…”

Section: Discussionmentioning

confidence: 99%

Aquatic Macrophytes in Constructed Wetlands: A Fight against Water Pollution

et al. 2020

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There is growing concern among health institutions worldwide to supply clean water to their populations, especially to more vulnerable communities. Although sewage treatment systems can remove most contaminants, they are not efficient at removing certain substances that can be detected in significant quantities even after standard treatments. Considering the necessity of perfecting techniques that can remove waterborne contaminants, constructed wetland systems have emerged as an effective bioremediation solution for degrading and removing contaminants. In spite of their environmentally friendly appearance and efficiency in treating residual waters, one of the limiting factors to structure efficient artificial wetlands is the choice of plant species that can both tolerate and remove contaminants. For sometimes, the chosen plants composing a system were not shown to increase wetland performance and became a problem since the biomass produced must have appropriated destination. We provide here an overview of the use and role of aquatic macrophytes in constructed wetland systems. The ability of plants to remove metals, pharmaceutical products, pesticides, cyanotoxins and nanoparticles in constructed wetlands were compared with the removal efficiency of non-planted systems, aiming to evaluate the capacity of plants to increase the removal efficiency of the systems. Moreover, this review also focuses on the management and destination of the biomass produced through natural processes of water filtration. The use of macrophytes in constructed wetlands represents a promising technology, mainly due to their efficiency of removal and the cost advantages of their implantation. However, the choice of plant species composing constructed wetlands should not be only based on the plant removal capacity since the introduction of invasive species can become an ecological problem.

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Section: Discussionmentioning

confidence: 99%