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. 2012 Aug 15;7(8):e43377. doi: 10.1371/journal.pone.0043377

Figure 2. Change in levels of DA and its related substances in the brain of queen associated with early colony establishment.

Figure 2

A: Change in level of DA in the brain of queen associated with early colony establishment. The level of DA in the brain of virgin queen was around 5 pmol/brain. The level of DA in the brain decreased significantly after a queen starts establishing a colony. B: The level of Nac-DA in the brain of queen. The level of Nac-DA in the brain significantly decreased after a queen starts establishing own colony. (*P<0.05, Student’s t-test).