“As such they are well suited as intracellular sunscreens, particularly in oxygenic phototrophic symbioses.”
“We have argued that more than the alga's, it is the host's metabolism that has had to adjust to the conditions of phototrophic endosymbiosis.”
“By contrast, no linkage was detected in crosses with the five class II mutant strains since phototrophic recombinants were recovered at high frequency.”