Abstract
Zinc-sufficient mycelium of Neocosmospora vasinfecta ATCC 11686 incubated in a buffer lacking metallic cations displayed complex velocity/concentration kinetics for the transport of zinc across the mycelial surface. Two transport “systems” were identified from Hofstee plots, one with a high affinity for zinc ( K 0.5 approx 1.1 μ M) and one with a low affinity for zinc ( K 0.5 approx 770 μ M). Zinc transport via the high-affinity system was relatively insensitive to the presence of other metallic cations in the uptake medium but was strongly inhibited by anaerobiosis and by carbonylcyanide- m-chlorophenylhydrazone at uncoupling concentrations. Diethylstilbestrol and dicyclohexylcarbodiimide only weakly inhibited zinc transport. The transport of zinc was also influenced by mycelial zinc and magnesium status, and to a lesser extent by mycelial P content.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
