Effect of Inhibitors on the Morphology and Growth of Allomyces macrogynus

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Abstract
The ability of 18 compounds [including herbicides and antibiotics] to inhibit morphogenesis and/or growth of the diploid stage of A. macrogynus was assayed. Of the 3 stages of development.sbd.germination, vegetative growth and sporogenesis.sbd.germination appeared to be the most sensitive to inhibition and vegetative growth the least sensitive. Sporogenesis was sensitive to most of the inhibitors tested, but high concentrations were required for effective activity. Inhibitors were grouped according to the stage of germination (cyst or rhizoid) at which they blocked development; those effective at the rhizoid stage were divided further on the basis of the resultant morphology of the germling.