Host-Parasite Relations in a Mycoparasite IV. A Correlation between the Levels of g-Linolenic Acid and Parasitism of Piptocephalis virginiana

Manocha, M. S.; Deven, J. M.

doi:10.2307/3758834

Cited by 8 publications

(1 citation statement)

References 11 publications

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“…Contrary to former assertions (Bamett and Binder, 1973;Manocha and Deven, 1975), Curtis et al (1978) showed that, depending on host-parasite combination and temperature, several species of the mycoparasitic mucoralean genus, Piptocephalis de Bary, could markedly affect the linear growth of their host fungi. Effects were either stimulatory or inhibitory and, when the latter, were sometimes accompanied by morphological disturbances such as proliferation of lateral branches and production of massive, multilobed hyphal swellings.…”

Section: Introductioncontrasting

confidence: 41%

Studies on Mucoralean Mycoparasites

Evans

Cooke

1978

New Phytologist

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SUMMARYAt 15 C, axenically germinated spores of Mycotypha microspora gave rise to transient yeast-phase growth before the establishment of hyphal development. At this temperature, germination in the presence of spores of Piptocephalis fimbriata resulted in the persistence of the yeast-phase, few hyphae being formed. Where hyphae were produced these either reverted to the yeast-phase, became severely attenuated, gave rise to dwarf sporophores or died. Such mycoparasite-mediated effects did not occur at 20°C. When Mortierella vinacea was used as a host in similar experiments there was no yeast-phase growth but severe stunting of hyphae occurred initially, followed by recovery and normal growth. Using Circinella mucoroides, there was again no yeast-phase but there was massive death of host hyphae without any apparent disturbances to their morphology. These observations are discussed in relation to the physiological and ecological consequences of mycoparasitism.

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Section: Introductioncontrasting

confidence: 41%