Figure 1.

Two‐storied test chamber. (A) Two‐dimensional, cross‐sectional view of the test chamber during a desiccation experiment. Bottom storey with: (1) algal sample; top storey with (2) salt solution; (3) air humidity and temperature sensor; (4) plastic ring of 9 mm height, preventing the contact of the salt solution with the investigated specimen; (5) Perspex lid. (B) Detailed description of the Perspex lid: (1) square panel of Perspex, forming the central body of the lid; (2) cross‐section of one of the two motorized mini fans; (3) sponge rubber seal; (4) power supply cable of one of the two motorized mini fans; (5) power adapter; (6) screw fixing the power supply cable. (C) Top view of the test chamber: (1) plastic ring, (4) in (A); (2) linear plastic delimitation of 10 mm height, preventing a contact of the salt solution with the sensor; (3) outer margin of the petri dish. All dimensions in millimetre.