Physiological and molecular characterization of a Synechocystis sp PCC 6803 mutant lacking histidine kinase Slr1759 and response regulator Slr1760

Nodop A, Suzuki I, Barsch A, Schroeder A-K, Niehaus K, Staiger D, Pistorius EK, Michel K-P (2006)
Zeitschrift für Naturforschung C 61(11-12): 865-878.

Journal Article | Published | English
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Abstract
The hybrid sensory histidine kinase Slr1759 of the cyanobacterium Synechocystis sp. strain PCC 6803 contains multiple sensory domains and a multi-step phosphorelay system. Immuno blot analysis provided evidence that the histidine kinase Slr1759 is associated with the cytoplasmic membrane. The gene slr1759 is part of an operon together with slr1760, encoding a response regulator. A comparative investigation was performed on Synechocystis sp. strain PCC 6803 wild type (WT) and an insertionally inactivated slr1759-mutant (Hik14) which also lacks the transcript for the response regulator Slr1760. The mutant Hik14 grew significantly slower than WT in the early growth phase, when both were inoculated with a low cell density into 13611 medium without additional buffer and when aerated with air enriched with 2% CO2. Since the aeration with CO2-enriched air results in a decrease of the pH value in the medium, the growth experiments indicated that Hik14 is not able to adjust its metabolic activities as rapidly as WT to compensate for a larger decrease of the pH value in the medium. No significant differences in growth between Hik14 and WT were observed when cells were inoculated with a higher cell density in BG11 medium or when the BG11 medium contained 50 mm Epps-NaOH, pH 7.5, to prevent the pH drop. This Hik14 phenotype has so far only been seen under the above defined growth condition. Results of photosynthetic activity measurements as well as Northern blot-, immuno blot-, and metabolite analyses suggest that the two-component system Slr1759/Slr1760 has a function in the coordination of several metabolic activities which is in good agreement with the complex domain structure of Slr1759. The direct targets of this two-component system have so far not been identified.
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Nodop A, Suzuki I, Barsch A, et al. Physiological and molecular characterization of a Synechocystis sp PCC 6803 mutant lacking histidine kinase Slr1759 and response regulator Slr1760. Zeitschrift für Naturforschung C. 2006;61(11-12):865-878.
Nodop, A., Suzuki, I., Barsch, A., Schroeder, A. - K., Niehaus, K., Staiger, D., Pistorius, E. K., et al. (2006). Physiological and molecular characterization of a Synechocystis sp PCC 6803 mutant lacking histidine kinase Slr1759 and response regulator Slr1760. Zeitschrift für Naturforschung C, 61(11-12), 865-878.
Nodop, A., Suzuki, I., Barsch, A., Schroeder, A. - K., Niehaus, K., Staiger, D., Pistorius, E. K., and Michel, K. - P. (2006). Physiological and molecular characterization of a Synechocystis sp PCC 6803 mutant lacking histidine kinase Slr1759 and response regulator Slr1760. Zeitschrift für Naturforschung C 61, 865-878.
Nodop, A., et al., 2006. Physiological and molecular characterization of a Synechocystis sp PCC 6803 mutant lacking histidine kinase Slr1759 and response regulator Slr1760. Zeitschrift für Naturforschung C, 61(11-12), p 865-878.
A. Nodop, et al., “Physiological and molecular characterization of a Synechocystis sp PCC 6803 mutant lacking histidine kinase Slr1759 and response regulator Slr1760”, Zeitschrift für Naturforschung C, vol. 61, 2006, pp. 865-878.
Nodop, A., Suzuki, I., Barsch, A., Schroeder, A.-K., Niehaus, K., Staiger, D., Pistorius, E.K., Michel, K.-P.: Physiological and molecular characterization of a Synechocystis sp PCC 6803 mutant lacking histidine kinase Slr1759 and response regulator Slr1760. Zeitschrift für Naturforschung C. 61, 865-878 (2006).
Nodop, Anke, Suzuki, Iwane, Barsch, Aiko, Schroeder, Ann-Kristin, Niehaus, Karsten, Staiger, Dorothee, Pistorius, Elfriede K., and Michel, Klaus-Peter. “Physiological and molecular characterization of a Synechocystis sp PCC 6803 mutant lacking histidine kinase Slr1759 and response regulator Slr1760”. Zeitschrift für Naturforschung C 61.11-12 (2006): 865-878.
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Transcript profiling indicates that the absence of PsbO affects the coordination of C and N metabolism in Synechocystis sp. PCC 6803.
Schriek S, Aguirre-von-Wobeser E, Nodop A, Becker A, Ibelings BW, Bok J, Staiger D, Matthijs HC, Pistorius EK, Michel KP., Physiol Plant 133(3), 2008
PMID: 18419737

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