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Elucidating the cellular adaptive response of Coccomyxa sp. upon exposure to PVC-nanoplastics (PVC-NPs) for production of bioenergy molecules
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Researchers studied how the microalga Coccomyxa sp. responds at the cellular level to exposure to PVC nanoplastics. The study aimed to elucidate the mechanisms of nanoplastic interactions with microalgae, which has significant ecological implications for understanding how plastic pollution affects primary producers in aquatic food webs.
Dissecting the mechanisms of Nanoplastic (NP) interactions with microalgae will have significant ecological implications.
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Nanoplastics reshape lipid metabolism in marine microalgae with potential ecological consequence
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Researchers exposed a marine microalga important to ocean ecosystems to nanoplastics and found significant disruptions to its lipid metabolism, reducing both biomass and lipid production. The nanoplastics altered the types of fats the algae produced, potentially affecting the nutritional value of these organisms for the marine food web. The findings suggest that nanoplastic pollution could have cascading ecological consequences by disrupting carbon cycling at the base of the food chain.
From acute defense to prolonged metabolic homeostasis: Insights into microalgae responses to PVC microplastic exposure
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Scientists studied how tiny plastic particles (from PVC, a common plastic) affect algae, the tiny organisms that form the base of aquatic food chains and produce much of our oxygen. They found that algae initially fight off the plastic stress using quick defense tricks, but after about 4 days, they settle into a longer-term survival mode with different chemical changes happening inside their cells. This matters because algae are essential to healthy water ecosystems and food chains—if microplastic pollution weakens them over time, it could ripple upward to affect fish populations and, ultimately, the food and water systems humans depend on.
Characterization of cell responses in Rhodomonas baltica exposed to PMMA nanoplastics
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Researchers exposed the marine microalga Rhodomonas baltica to PMMA nanoplastics and found effects on cell growth, photosynthesis, and membrane integrity, demonstrating that this important alga — often used as aquaculture feed — is sensitive to nanoplastic contamination.
Nanoplastic exposure inhibits growth, photosynthetic pigment synthesis and oxidative enzymes in microalgae: A new threat to primary producers in aquatic environment
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Scientists found that tiny plastic particles (nanoplastics) can seriously harm microalgae, the tiny plants that form the base of the ocean's food chain, by slowing their growth by up to 42%, reducing their ability to photosynthesize, and triggering stress damage inside their cells. Since these algae are eaten by small creatures that are eaten by bigger fish (eventually including the seafood we eat), this damage could ripple up the food chain and disrupt entire aquatic ecosystems. While this study looked at algae rather than humans directly, it adds to growing evidence that nanoplastic pollution, now found
The effect of microplastics pollution in microalgal biomass production: A biochemical study
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Scientists exposed the marine microalga Phaeodactylum tricornutum to polystyrene microplastics and found that both short- and long-term exposure at environmentally relevant concentrations disrupted biochemical composition including proteins, carbohydrates, and lipids.
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When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.