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. Author manuscript; available in PMC: 2011 Apr 1.
Published in final edited form as: Plant Physiol Biochem. 2010 Jan 21;48(4):239–246. doi: 10.1016/j.plaphy.2010.01.006

Fig. 5.

Fig. 5

Break-out illustration of the phototaxis machine setup showing one test cell. (A) Light sensor. (B) White LED for background light. (C) Petri dish (35 mm × 10 mm) with culture. (D) Counter bored hole for the petri dish with neutral density filter in the bottom. (E) 3 mm hole for test light beam. (F) Block of black plastic. (G) K-type thermocouple. (H) Heat exchanger consisting of a brass plate with copper coils. (J) Water from a circulating water bath. (K) Blue-green (507 nm) LED for test light.