Observations had indicated that Cgranii cells were more rapidly infected when
maintained in darkness. This contrasted with reports of reduced infectivity of
freshwater chytrid zoospores (Canter and Jaworsky, 1981), the marine
phycomycete Ectrogella (Raghukumar, 1978) and the parasitoid dinoflagellate
Paulsenella (Schnepf and Drebes, 1986) when kept in the dark.