TY  - JOUR
A1  - Döhler, Günter
T1  - Zur photosynthetischen CO2-Fixierung von Synechococcus
T1  - Photosynthetic CO2 fixation of synechococcus
T2  - Zeitschrift für Naturforschung, C
N2  - The cyanobacterium Synechococcus (Anacystis nidulans strain L 1402-1) was grown at + 37 °C in 3.0 vol.% CO2. The effect of preillumination with white light on the subsequent dark 14CO2 fixation was studied under aerobic conditions at + 30 °C. The radioactive carbon first incoiporated into 3-phosphoglyceric acid was transferred during the later periods of dark 14CO2 fixation to phosphoenolpyruvate and aspartate. No labelling or a very low label in sugar monophosphates could be observed. During the dark/light transients the initial fixation product was mainly aspartate. The pattern of 14C-incorporation into photosynthetic products under steady state conditions (10 min photosynthesis) varied with the temperature during the experiments. The radioactive carbon was firstly incorporated into 3-phosphoglyceric acid. During the later periods of photosynthetic 14CO2 fixation an increased 14C-incorporation into aspartate and glutamate could be observed. Our findings were interpreted with operating of a phospho­enolpyruvate carboxylation besides the Calvin cycle.
KW  - 14CO2 Fixation
KW  - Effect of Preillumination and Temperature
KW  - Synechococcus
Y1  - 2014
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/71385
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-713858
SN  - 0939-5075
SN  - 1865-7125
VL  - 35.1980
IS  - 11-12
SP  - 978
EP  - 981
PB  - Verlag der Zeitschrift für Naturforschung
CY  - Tübingen
ER  -