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. 2012 Aug 22;7(8):e43996. doi: 10.1371/journal.pone.0043996

Figure 4. Expression of tdaC in co-culture with Tetraselmis suecica.

Figure 4

Phase contrast (A) and fluorescence (B) micrographs of P. gallaeciensis pPDA11 (tdaCp::gfp) in co-culture with T. suecica. The two panels show the same seven algal cells of which some are dividing, and a marine snow-like particle which is colonized by P. gallaeciensis carrying the promoter-fusion on a plasmid. The green fluorescence of P. gallaeciensis on the particle shows that the gfp gene is expressed from the tdaC promoter, indicating production of TDA.