Table 2 |
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|
Physiological features of C. reinhardtii apr mutant strains and the respective wild types. |
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|
WT (CC-425) |
WT (CC-124) |
apr1 |
apr4 |
apr6 |
apr7 |
|
|
|
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|
P/R ratio at saturated light intensities |
6.7 ± 1.7 |
4.2 ± 0.41 |
1.5 ± 0.1 |
0.6 ± 0.4 |
0.4 ± 0.1 |
3.5 ± 0.7 |
|
respiration rate (nmol O2 × h-1 × μg Chl-1) |
17.7 ± 3.2 |
35.6 ± 0.5 |
40.5 ± 4.9 |
14.7 ± 1.9 |
22.2 ± 2.7 |
22.7 ± 7.3 |
|
maximal O2 production rate (nmol O2 × h-1 × μg Chl-1) |
97.1 ± 13.8 |
114.8 ± 16.0 |
20.6 ± 5.2 |
-6.1 ± 5.9 |
-6.8 ± 0.7 |
54.6 ± 13.8 |
|
compensation point (μE × m-2 × s-1) |
27.2 ± 6.4 |
39.1 ± 6.8 |
53.1 ± 2.3 |
- |
- |
36.3 ± 5.1 |
|
light sensitive |
no |
no |
no |
yes |
no |
High light sensitive |
|
Ability of photoautotrophic growth (TBP medium) |
yes |
yes |
yes |
no |
no |
yes |
|
Fv/Fm |
0.66 ± 0.01 |
0.66 ± 0.023 |
0.58 ± 0.02 |
0.54 ± 0.01 |
0.00 ± 0 |
0.30 ± 0.01 |
|
|
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|
The compensation point reflects the light intensity at which the cultures produce as much oxygen as they consume. Exposing sealed cultures to lower light intensities than at the compensation point lead to anaerobiosis. Values represent means ± standard deviation (n = 3). |
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|
Rühle et al. BMC Plant Biology 2008 8:107 doi:10.1186/1471-2229-8-107 |
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