Physiological changes of the lichen Parmotrema tinctorum as result of carbon nanotubes exposition.

摘要: Abstract Carbon nanotubes (CNT) is one of the more abundant nanomaterial produced in world. Therefore, it desirable to access its effects all environment compartments, order mitigate environmental distress. This study aims verify potential use lichens – classical atmospheric pollution indicators as biomonitors carbon aerosols. To examine cause–effect relationships, preserving microclimatic parameters, lichen Parmotrema tinctorum (Nyl.) Hale was transplanted open top chambers where aerosols CNT were daily added. Physiological parameters such cell viability, photosynthetic efficiency, permeability well nanoparticle internalization assessed. exposure led reduction on viability P. tinctorum. The treatment with 100 µg/mL MWCNT-COOH resulted intracellular ion leakage, probably due changes membrane permeability. No alterations efficiency detected. entrapment and into thallus observed. Short term exposition measurable physiological lichen. suggests possibility models assess impact (air related) engineered nanomaterials.