Brandão Rogélio L, Loureiro-Dias Maria C
Laboratory of Microbiology, Gulbenkian Institute of Science, 2781 Oeiras Codex, Portugal.
Appl Environ Microbiol. 1990 Aug;56(8):2417-2420. doi: 10.1128/aem.56.8.2417-2420.1990.
Fusarium oxysporum var. lini (ATCC 10960) formed a facilitated diffusion system for glucose (K(s), about 10 mM) when grown under repressed conditions. Under conditions of derepression, the same system was present together with a high-affinity (K(s), about 40 muM) active system. The maximum velocity of the latter was about 5% of that of the facilitated diffusion system. The high-affinity system was under the control of glucose repression and glucose inactivation. When lactose was the only carbon source in the medium, a facilitated diffusion system for lactose was found (K(s), about 30 mM).
尖孢镰刀菌亚麻变种(ATCC 10960)在受抑制条件下生长时形成了一个葡萄糖易化扩散系统(K(s),约10 mM)。在去阻遏条件下,该系统与一个高亲和力(K(s),约40 μM)的活性系统同时存在。后者的最大速度约为易化扩散系统的5%。高亲和力系统受葡萄糖阻遏和葡萄糖失活的调控。当乳糖是培养基中唯一的碳源时,发现了一个乳糖易化扩散系统(K(s),约30 mM)。