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Published on: September 16, 2022
THE PHYSIOLOGY OF BASIDIOMYCETE LINEAR ORGANS: I. PHOSPHATE UPTAKE BY CORDS AND MYCELIUM IN THE LABORATORY AND THE
N J W Clipson1, J W G Cairney1, D H Jennings1
1Botany Department, The University, Liverpool L69 3BX, UK.
Abstract:
Phosphate uptake as a function of external medium concentration has been determined for mycelium grown in the laboratory, segments of cords collected from the field and cords in the field for a range of wood-decay basidiomycetes. Hofstee plots in all cases can be interpreted as indicating the presence of two uptake systems. Uptake of phosphate by mycelium is reduced by increasing the concentration of phosphate in the growth medium from 10 μM to 10 mM. The major portion absorbed by cords in the field remains within the segment exposed to radioactive solution, suggesting conversion of the phosphate to an immobile form unavailable for translocation.
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