Discussion
In this study, we investigated the MTB diversity of a pristine
Mediterranean area to theimprove understanding of the
MTB communities. Our work highlights the most important
diversity of MTB until now observed in the Mediterranean
Sea, particularly within the recently characterized Magnetococcales
order, among Alphaproteobacteria. The MTB
observed were cocci in majority, as reported in other studies
world wide [11]. However, the site of Six-Fours-les-Plages is
remarkable regarding the diversity of the morphotypes and
crystal forms of MTB