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TABLE 1.
C mass balances for closed-system incubations for two
fungal species on C3- and C4-derived sucrose
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|
| Sugar |
Species |
C mass balance
(g)
|
% of original C recovered |
% of original C
used |
Expected medium  13C |
Observed
medium 13C |
| Blank
medium |
Medium |
Fungusa |
Respired
CO2 |
|
| C3-derived
sucrose |
C.
volvatus |
0.440 ± 0.017 (16)b |
0.421 ± 0.160 (3) |
0.018 ± 0.002 (3) |
0.012 ± 0.002 (3) |
102.6 ± 3.3 |
6.8 ± 0.6 |
 22.011 ± 0.044 |
22.829 ± 0.096
|
|
M.
androsaceus |
0.440 ± 0.017 (16) |
0.383 ± 0.007 (3) |
0.021 ± 0.003 (3) |
0.018 ± 0.001 (3) |
96.3 ± 2.7 |
9.1 ± 0.8 |
22.712 ± 0.029 |
22.539 ± 0.060
|
| C4-derived sucrose |
C.
volvatus |
0.438 ± 0.015 (10) |
0.383 ± 0.019 (3) |
0.023 ± 0.003 (3) |
0.014 ± 0.000 (3) |
96.0 ± 3.6 |
8.6 ± 0.7 |
11.132 ± 0.030 |
11.045 ± 0.013
|
|
M.
androsaceus |
0.438 ± 0.015 (10) |
0.348 ± 0.020 (3) |
0.025 ± 0.005 (3) |
0.018 ± 0.004 (3) |
89.5 ± 5.5 |
10.0 ± 0.7 |
11.135 ± 0.002 |
11.007 ± 0.025 |
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a
The original fungal inoculum contained
less than 0.5 × 10 6 g of C.
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b
The numbers in parentheses are numbers of
replicates.
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