A giant type I polyketide synthase participates in zygospore maturation in Chlamydomonas reinhardtii

Summary Polyketide synthases ( PKS s) occur in many bacteria, fungi and plants. They are highly versatile enzymes involved in the biosynthesis of a large variety of compounds including antimicrobial agents, polymers associated with bacterial cell walls and plant pigments. While harmful algae are known to produce polyketide toxins, sequences of the genomes of non‐toxic algae, including those of many green algal species, have surprisingly revealed...