STUDIES ON MUCORALEAN MYCOPARASITES

I. SOME EFFECTS OF PIPTOCEPHALIS SPECIES ON HOST GROWTH

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SUMMARY

The effects of nine species of Piptocephalis de Bary on the growth of four host fungi were studied. Depending on temperature and the mycoparasite-host combination, host growth was either unaffected, inhibited or stimulated, In addition, mycoparasite-induced abnormal morphology in the host often resulted. Hypotheses are presented to explain these phenomena and to act as a basis for investigations into the physiology of mycoparasitism.

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