“…Plant biostimulants facilitate nutrient uptake, improve crop performance and tolerance to abiotic stress, and therefore can have a crucial role in reducing dependency on synthetic fertilizers and plant protection products, and thus address agronomic sustainability challenges (Chiaiese et al, 2018). Though macroalgae have long been known for their beneficial influence on crop production, the interest in microalgae is on the rise due to recent technological development in microalgae cultivation, enabling nutrient‐looped circular economies, and refineries rendering biomass with standard composition (Allahverdiyeva et al, 2021; Lacroux et al, 2023).…”