“…Additionally, distinct bacteria, in particular members of Bacteroidetes, Gammaproteobacteria and the Roseobacter group, colonize and attach to the algal host cell, presumably enabled by encoded gene clusters for a tight attachment (Bauer et al 2006, de Bentzmann et al 2006, González et al 2008, Bakenhus et al 2018, Isaac et al 2021. These physical interactions between heterotrophic bacteria and phytoplankton species have received much attention in the recent past because they can affect the development of either or both partners negatively or positively with ecosystem-wide consequences (Li et al 2016, Cooper et al 2019.…”