Abstract
Laboratory studies of Phytophthora cryptogea showed that the fungus was able to colonize dead
organic matter in soil in competition with other soil microorganisms. When mycelium of the fungus
was pre-exposed to various temperatures, the optimum pre-exposure temperatures for subsequent
production of sporangia under sterile and non-sterile conditions were 15° and 5°C respectively.
Production of sporangia by P. cryptogea was also influenced by aeration; numbers of sporangia
decreased sharply when the depth of liquid above culture discs of the fungus was increased from
6 mm to 13 mm. Encysted zoospores of P. cryptogea were able to germinate after 14 days in a
forest soil.
Subject
Plant Science,Ecology, Evolution, Behavior and Systematics
Cited by
16 articles.
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