Cyanobacterial Classification with the Toxicity Using MALDI Biotyper.

An abnormal growth of cyanobacteria in eutrophicated freshwaters can cause various environmental problems. In particular, producing hepatotoxic cyclic heptapeptides microcystins (MCs) has been globally observed. Recent studies have demonstrated that matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) offers a rapid classification of cyanobacteria; however, they have not fully considered the toxicity yet.