Figure 8.
CAM cultivation protocols. The ex ovo protocol (a–c) requires (a) a gentle cracking of the egg using a blade and transferring of the contents into a petri dish or weighing boats (b) with plastic a plastic cover (c). The in ovo cultivation (d–f) starts with gentle rotation for 3 days. On embryo development day 3 the eggshell is opened with a sterile tweezers (d) and subsequently covered with a laboratory wrapping film (e). On the day when the experiment starts, the shell above the air pouch of the egg is extended to a diameter of approximately 3 cm (f) enabling further experimental manipulation.