Influence of Potassium in the Agar Medium on the Growth Pattern of the Filamentous Fungus Fusarium solani

AUTOR(ES)
RESUMO

A decrease in the concentration of K+ ions below 3 mM in agar medium which also contained starch, casein hydrolysate, MgSO4, and K2HPO4 changed the growth pattern of Fusarium solani illuminated in diurnal 12-h light/12-h dark cycles from zonation to a feathery growth mode. Rubidium or cesium ions could replace potassium, but lithium, sodium, and the bivalent alkaline earth ions could not.

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