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Advances in Food Mycology

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Ecophysiology of Fusarium culmorum and Mycotox<strong>in</strong> Production 131<br />

Nivalenol (ppm)<br />

0.40<br />

0.35<br />

0.30<br />

0.25<br />

0.20<br />

0.15<br />

0.10<br />

0.05<br />

4.5<br />

0<br />

4.0<br />

3.5<br />

3.0<br />

2.5<br />

2.0<br />

1.5<br />

1.0<br />

0.05<br />

0<br />

0.99<br />

0.99<br />

0.98<br />

0.98<br />

0.97<br />

0.97<br />

158C<br />

0.96<br />

258C<br />

0.96<br />

Water Activity<br />

0.95<br />

0.95<br />

0.94 0.93<br />

0.94 0.93<br />

0<br />

0<br />

20<br />

20<br />

40<br />

40<br />

Time<br />

(days)<br />

Time<br />

(days)<br />

Figure 3. Effect of a w and time on nivalenol production by F. culmorum on milled<br />

wheat agar at 15° and 25°C (from Hope and Magan, 2003).

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