Effect of temperature on the mycelial growth of the fungus Sphaeropsis sapinea
2006
Milijasevic, T.(Univerzitet u Beogradu, Beograd (Serbia). Sumarski fakultet)
Effect of temperature on mycelial growth was tested on 11 isolates from six pine species: Pinus nigra, Pinus sylvestris, Pinus halepensis, Pinus heldreichii, Pinus pinaster and Pinus pinea, originating from Serbia and Montenegro. The optimal temperature for mycelial growth of the fungus Sphaeropsis sapinea on potato-dextrose agar (PDA) and malt-extract agar (MEA) media was 28 deg C. However, a very similar colony growth occurred also at 25 deg C. The growth of all the tested isolates was better on PDA than on MEA. In addition to faster growth, on PDA the fungus showed the physiological activity in the wider temperature interval - between 4 deg C and 40 deg C. On MEA, all isolates grew in the temperature interval between 10 deg C and 35 deg C. However, colony formation or inoculum growth of a low number of isolates occurred also at 4 deg C. The differences in growth among the isolates occurred only at the temperatures which are closer to cardinal.
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