Friesia X, 4-5

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TABLE II.
Growth and sporulation of a. truncatum on different carbon sources.
No. Source of carbon
Dry wt.of
mycelium
mg
Sporulation
Drift in
pH
1 L-A rabino se 65.5 fe w 7.1
2 D- Xylose 54.1 g ood 6.8
3 L-Rhamnose 63.7 poor 7.2
4 D-Glucos e 54.6 excellent 6.9
5 D-Fructose 51.7 poor 7.2
6 D-Galactose 74.8 poo r 7.2
7 D-Mannose 64.8 few 7.0
8 Sucrose 80.8 good 6.9
9 Maltose 65.3 excellent 6.9
10 Laetose 58.6 good 6.9
11 Raffinose 74.7 fair 7.4
12 Starch 61.9 few 7.3
13 Dextrin 54.5 few 6.1
14 Inulin 33.6 - 5.8
15 Dulcitol 42.4 - 6.0
16 Mannitol 30.1 - 5.8
17 Tartaric acid - - 5.5
18 Malie acid - - 5.5
19 Control (no carbon) - - 5.5
General Mean 49.0
Critical difference at 5 % level = 5.35
Standard error = 2.82
Dry weight results: Nos. 8 6 11 >1 9 7 3 12 10
4 13 2 5 >15>14 16
17 18 19
sporulation was narrower as compared to the development of mycelium.
In all treatments a trend in drift of pH values at the end of
the incubation period was observed towards neutrality.
b. Carbon nutrition.
The growth and sporulation on various carbon sources (Table II)
indicate that C. truncatum could utilize carbon from several carbon
compounds except organic acids which failed to support the development
of the mycelium. Similarly no vegetative growth was observed