Callusogenesis and Organogenesis of Thymus Cultivars In Vitro Mikhail Yu. Cherednichenko, Alena N. Drevova, Aliya R. Husainova, Oksana B. Polivanova and Daria A. Khlebnikova E3S Web Conf., 494 (2024) 04011 Published online: 22 February 2024 DOI: 10.1051/e3sconf/202449404011