FIG. 2.

Infection intensity in Planktothrix sp. strains representing chemotypes Cht1, Cht5, Cht7a to Cht7e, and Cht9 exposed to chytrid strains Chy-Lys2009 and Chy-Kol2008 for 7 days. Intensity was measured according to the following scale: 0, no sporangia, no active zoospores, 1, up to 10% of host filaments with sporangia, active zoospores present; 2, 10 to 50% of host filaments with sporangia, active zoospores present; 3, 50 to 90% of host filaments with sporangia, active zoospores present; 4, 90 to 100% of host filaments with sporangia, active zoospores present; 5, final stage of infection, most host filaments disintegrated, numerous sporangia visible, and active zoospores present or absent. Each column represents the mean value of tree replicates with the respective standard deviation.