Vertical transfer of bacterial symbionts via a placental analogue in the cyclostome bryozoan Patinella verrucaria (Stenolaemata): Ultrastructural and molecular evidence
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Symbiotic associations with prokaryotes are common among marine filter-feeding invertebrates. In the almost exclusively colonial phylum Bryozoa, however, such associations have only been recorded in some species of the order Cheilostomata (class Gymnolaemata).... ...
