Effect of ozone on fungus sporulation
Book
·
OSTI ID:5366494
A total of 30 organisms among the Phycomycetes, Ascomycetes, Basidiomycetes, and the Fungi Imperferti were exposed to ozone at a concentration of 110 ppm., a temperature of 79/sup 0/F., and an average humidity of 87%. Three to four testings were made for each organism. All transfers from test tube cultures were made to standard size 9 centimeter plates containing Difco commercial potato-dextrose-agar mixed to the proportion of 39 grams agar per 1000 cc distilled water. Under the conditions outlined in this study it was found that ozone will induce earlier and more abundant sporulation of certain fungi, but in general the spore germinations were adversely affected. Notable exceptions with respect to spore germination were Diapor the phaseolorum, Lenzites trabea, and two species of Diplodia, the spores of which germinated better after exposure to ozone. Fungi possessing white or light mycelium were inhibited by the gas. Thus there appears to be a correlation between mycelial color and inhibition or stimulation to sporulation. Aerial growth of all organisms tested was suppressed or greatly reduced by ozone. 35 references, 6 tables.
- Research Organization:
- New Hampshire Univ., Durham (USA)
- OSTI ID:
- 5366494
- Country of Publication:
- United States
- Language:
- English
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