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The Origin of Phthalates in Algae: Biosynthesis and Environmental Bioaccumulation
Summary
Researchers reviewed the dual role of algae as both producers and accumulators of phthalic acid esters, common plasticizer chemicals found throughout aquatic environments. The study suggests that algae can both biosynthesize and bioaccumulate phthalates depending on environmental conditions, making them important organisms for understanding the cycling of these widespread contaminants.
Phthalic acid esters (PAEs) are a class of ubiquitous and dangerous lipophilic chemicals widely used as additives in various products to improve their physical and chemical properties. Although they have been banned in many countries, their persistence in all environmental compartments is of particular concern. The aquatic environment is especially affected by these compounds because it is strongly influenced both by contamination of anthropic origin and natural contaminants including those produced biosynthetically by some organisms such as algae. In this context, algal organisms can be a source and remedy for phthalate pollution. Both the increase and decrease in uptake and production depend on the physicochemical characteristics of the environment. The dynamics of the natural processes are aimed at achieving an optimal environmental state for their competitiveness and balance of the cellular homeostasis. This review summarizes the studies dealing with biosynthesis and bioaccumulation of phthalates in algae and investigates the source of their origin by suggesting strategies to identify the process leading to their presence.