One fun thing we had was some bacteria culture plates from "normal" soil and earthworm casts. This shows that you get more culturable bacteria in the earthworm casts. It is an interesting question as to whether the numbers of bacteria in soil are increased during passage of the soil through the earthworm intestines or if it is simply that the bacteria were dormant and become active, waking up as it were in the nice cosy environment of the earthworms guts. The plates were kindly prepared by Adrian Harrison in our Biology department.
|The white discs in the petri dish represent individual bacterial colonies. The petri dish on the left has colonies from earthworm poo, the one on the right from "normal" soil. You can see that there are more culturable bacteria in the earthworm poo.|
|Director and camera man with presenter Chris Beardshaw discussing a close up shot of some bacteria cultured from earthworm poo!|
Green bubbling stuff in a bottle - the stuff of a camera mans dreams! In this case an algal culture for feeding water fleas (Daphnia).
I had a happy two half days filming with the crew which will probably be about 2 minutes in the actual documentary! The documentary will probably be broadcast sometime in the middle of next year - a real treat to look forward to!