Description_x000D_ Application_x000D_ Cercosporin (C29H26O10) is a red pigment that has been isolated from cultures of a banana pathogen . It has been used to study toxin biodegredation in species such as Bacterium Xanthomonas campestris pv. Zinniae ._x000D_ Packaging_x000D_ 5 mg in glass bottle_x000D_ Biochem/physiol Actions_x000D_ Cercosporin, a polyketide phytotoxin, is activated by light and in the activated state, reacts with oxygen to produce toxic oxygen species such as singlet oxygen (O2) and superoxide (O2-). Production of reactive oxygen species leads to peroxidation of lipids in the plant cell membranes._x000D_ A light-induced polyketide phytotoxin reported to produce singlet oxygen when photoactivated._x000D_ Other Notes_x000D_ Keep container tightly closed in a dry and well-ventilated place.