April 14 — Wow! What a trooper. Even after having to go through the trauma of the loss of the biofilm layer, Column C (Thames Mud + Tap Water) continues to impress with new development and new growth. I went to go take a look at it today and saw that on the sunny side, there was a lot of new, dark green growth that definitely had not been there the last time I looked! (fig. 1). As it is green, and on the sunny side of the column, I'm guessing it's a phototrophic type of microorganism, probably anaerobic as it is well in the mud. Otherwise, the orange growth continues to spread and has covered two thirds of the surface of the mud section, and there continues to be more green growth in the water column.
Fig. 1 The new growth in Column C! (a) All the changes in Column C. The water has gotten more green, and you can see the green mixed in with the orange in the mud layer on the sunny side of the column. (b) A close-up of the mud layer - here you can really see how the green growth is found throughout the mud layer of the column.
More to come!
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