by Cristian Solari
Thalassiosira pseudonana (+) Mutualism (+) Ruegeria pomeroyi
Observation
Phytoplankton require exogenous organic cofactors and nutrients to survive. These cofactors are often provisioned by heterotrophic bacteria; in exchange, bacteria acquire phytoplankton-derived dissolved organic matter to survive.
When phytoplankton realize that bacteria are present?
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