Feeding and bioremediation relationships between Chrysochromulina species and bacteria

Harmful algal blooms (HABs) consider a global environmental problem. A massive fish death occurred in two coastal Red Sea lagoons: Al-Nawras and Al-Arbaeen (Jeddah, Saudi Arabia), and the main cause was associated to bloom of microalgal Chrysochromulina species which can feed on bacteria (phagotrophic). There are bacterial strains that capable of inhibiting or lysing HAB species by producing algicidal substances. On another hand, the resistant of pathogenic bacteria to drugs have become a critical global threat. Thus, finding an effective alternative solution is essential, especially that taken advantage of the phagocytosis in Chrysochromulina and applied on pathogenic bacteria has not been studied enough yet. The aim of the article is to understanding the relationship that occur between Chrysochromulina and bacteria.