During stationary phase, Beijerinckia derxii shows nitrogenase activity concomitant with the release and accumulation of nitrogenated substances - Miyasaka, Natália Reiko Sato; Thuler, Daniela Strauss; Floh, Eny Iochevet Segal; Handro, Walter; Toledo, M B D; Gagioti, Sonia Maria; Barbosa, Heloiza Ramos (Microbiological Research, 2003)