Tradescantia-Based Test Systems Can Be Used for the Evaluation of the Toxic Potential of Harmful Algal Blooms

Harmful algal blooms (HABs) are overgrowths of toxic strains algae (diatoms, green) and cyanobacteria (blue-green algae). While occurring naturally, human-induced environmental changes have resulted in more frequent occurrences such worldwide. Meantime, the ecotoxicological risk HABs is rarely evaluated by means standard test methods. For first time, genotoxic potential HAB event 2020 was assessed using two different Tradescantia-based systems (Trad-SHM Trad-MN, 24-h exposure). An integrated analysis biological (algal abundance) (testing) data revealed linkages among proliferation, Tradescantia stamen hairs (mutations suppressed growth) chromosomal aberrations during microsporogenesis (appearance micronuclei) that were likely to be caused groups. Green alga Botryococcus braunii cyanobacterial species Anabaena Oscillatoria could suppress hair growth; Cyanobacteria Phormidium Aphanothece sp. trigger mutations pink colorless cells); responsible for occurrence damage. Diatom proliferation spring not related response Tradescantia. Both tests, Trad-SHM suitable evaluation HABs.