Cells survival fraction in negative and positive control samples of C. reinhardtii strain 137C. Mean values from at least three independent experiments. Error bars represent standard errors of mean values. The statistical significance of the differences is presented as follows: * P < 0.05; ** P < 0.01; *** P < 0.001; ns – no significant difference.

  Part of: Todorova MD, Parvanova PN, Todorova TI, Dronchev GD, Nikolova MT, Berkov SH, Chankova SG (2021) On the mode of action of Origanum vulgare spp. hirtum methanolic extract and essential oil on Chlamydomonas reinhardtii. In: Chankova S, Peneva V, Metcheva R, Beltcheva M, Vassilev K, Radeva G, Danova K (Eds) Current trends of ecology. BioRisk 17: 179-190. https://doi.org/10.3897/biorisk.17.77313