Raphidiopsis raciborskii (formerly Cylindrospermopsis raciborskii) is a freshwater
cyanobacterium potentially producing saxitoxins (STX) and cylindrospermopsin. Its
ecophysiological versatility enables it to form blooms in the most diverse types of
environments, from tropical to temperate, and from relatively pristine to polluted. In Peri
Lake, located in the subtropical south of Brazil, growing populations of STX-producing R.
raciborskii have been detected since 1994, posing risks to the use of its waters that supply a …