Actinomadura violacea Kanchanasin et al. 2021 Kanchanasin P. Phongsopitanun W. Yuki M. Kudo T. Ohkuma M. Nakashima T. Tanasupawat S. Actinomadura violacea sp. nov., a madurastatin A1-producing strain isolated from lichen in Thailand. 2021 71 12 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijsem.0.005126 34870574