The effect of carbon dioxide on the growth of certain soil fungi
1953; Cambridge University Press; Volume: 36; Issue: 2 Linguagem: Inglês
10.1016/s0007-1536(53)80054-9
ISSN0007-1536
Autores Tópico(s)Indoor Air Quality and Microbial Exposure
ResumoPenicillium nigricans, Gliomastix convoluta and Zygorrhynchus vuillemini and several other soil fungi were grown in atmospheres containing various amounts of carbon dioxide. Growth was determined both by measuring the linear spread and the dry weight of the mycelium. Increase in the concentration of carbon dioxide beyond 5% greatly inhibited Penicillium nigricans, a fungus restricted to the upper 5 cm. of the soil, but had much less effect on Zygorrhynchus vuillemini, abundant below 10 cm. Gliomastix convoluta, which occurred throughout the profile, was intermediate in its reaction. The facultative anaerobic ability of fungi isolated from the lower layers of the soil has been stressed by previous writers. In view of the high concentration of CO2 found in soil after rain (3·5–9·2 %), tolerance of CO2, rather than of low O2, may determine vertical distribution of soil fungi.
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