Cyanobacterium Synechococcus

Campbell D, Eriksson MJ, Oquist G, Gustafsson P, Clarke AK (1998) The cyanobacterium Synechococcus resists UV-B by exchanging photosystem II reaction-center D1 proteins. Proc... 

Gotz T, Windhovel U, Boger P, Sandmann G (1999) Protection of photosynthesis against UV-B radiation by carotenoids in transformants of the cyanobacterium Synechococcus PCC7942. Plant Physiol 120 599-604... 

The solution structure of the 87-residue cytochrome cg from the thermophilic cyanobacterium Synechococcus elongatus (optimal temperature for photosynthetic activity = 57 °C) was determined by multidimensional NMR spectroscopy and molecular dynamics calculations and exhibited the overall topology of class I c cytochromes with four a-helices and a small antiparallel /1-sheet near Met58, one of the axial haem ligands. ... 

Synechobactins (Fig. 15, 57) from the cyanobacterium Synechococcus (165), contain an acetyl and C12-, Cjo-, and Cg-saturated acid residues and thus belong to the amphiphilic marine siderophores (cf. Sect. 2.8). Both rhizobactin 1021 and the synechobactins are substituted unsymmetrically. Hence, for each, the central C-atom of citric acid is chiral, but its stereochemistry has not been determined. 

Ito Y, Butler A (2005) Structure of Synechobactins, New Siderophores of the Marine Cyanobacterium Synechococcus sp. PCC 7002. Limnol Oceanogr 50 1918... 

Photosystem I (PS I) in the cyanobacterium Synechococcus elongatus is the first system of this type for which the structure has been solved in atomic detail. Although the bacterial photosystem differs slightly from the systems in higher plants, the structure provides valuable hints about the course of the light reactions in photosynthesis (see p. 128). The functioning of the photosystem is discussed in greater detail on p. 130. 

Aiba, H. Nagaya, M. Mizuno, T Sensor and regulator proteins from the cyanobacterium Synechococcus species PCC7942 that belong to the bacterial signal-transduction protein families implication in the adaptive response to phosphate hmitation. Mol. Microbiol., 8, 81-91 (1993)... 

Desaturation takes place in a stepwise fashion, and many intermediate compounds with fewer double bonds are known (Eq. 22-10).118/121-123 The enzymes required have not been characterized well until recently. Plant enzymes are present in small amounts, and isolation has been difficult. However, the genes for carotenoid biosynthesis in such bacteria as the purple photosynthetic RhodobacterRhodospirillum,125 and Rubrivarax,126 the cyanobacterium Synechococcus,127 and the nonphotosynthetic Erwinia44/118 have been cloned, sequenced, and used to produce enzymes in quantities that can be studied. Matching genes from higher plants have also been cloned and expressed in bacteria.123... 

Gardner, G. (1981). Azidoatrazine Photoaffinity label for the site of triazine herbicide action in chloroplasts. Science, 211 937-940. Gingrich, J.C., J.S. Buzby, V.L. Stirewalt, and D.A. Bryant (1988). Genetic analysis of two new mutations resulting in herbicide resistance in the cyanobacterium Synechococcus-sp pcc 7002. Photosyn. Res., 16 83-100. 

Boekema, E.J., Dekker, J.P.. van Heel, M.G., Rogner, M. Saenger, W., Witt, I. and Witt, H.T. 1987. Evidence for a trimeric organization of the photosystem I complex from the thermophilic cyanobacterium Synechococcus sp. FEBS Lett., 217,283-286. 

Yamagishi, A. and Katoh S. 1985. Further characterization of two photosystem II reaction center complex preparations from the thermophilic cyanobacterium Synechococcus sp. Biochim. Biophys. Acta 807. 74-80. 

Phaeocystis sp. (Prymnesiophyceae). II. Pigment Composition. J Phycol 34 496-503 Wells ML (1999), Manipulating iron availability in nearshore waters. Limnol Oceanogr 44 1002-1008 Wells ML, Price NM, Bruland KW (1994) Iron limitation and the cyanobacterium Synechococcus in equatorial Pacific waters. Limnol Oceanogr 39 1481-1486 Worthen DL, Arrigo KR (2003) A coupled ocean-ecosystem model of the Ross Sea. Part 1 Interannual variability of primary production and phytoplankton community structure. In DiTullio GR, Dunbar RB (eds) Biogeochemistry of the Ross Sea. Antarct Res Ser 78 93-105... 

Graham JE, Bryant DA (2008) The biosynthetic pathway for synechoxanthin, an aromatic carotenoid synthesized by the euryhaline, unicellular cyanobacterium Synechococcus sp. strain PCC 7002. J Bacteriol 190 7966-7974... 

Extracellular calcium carbonate formation by some cyanobacteria and algae, which are photo synthetic autotrophs that obtain their carbon from CO2, can be explained by Eq. (1.5) above. In that instance, the uptake and fixation of CO2 by the cyanobacteria and algae promotes C03 formation needed for precipitation of extracellular CaC03. In the cyanobacterium Synechococcus, the Ca precipitated by C03 from photosynthesis is derived from that bound to the cell surface of Synechococcus (Thompson et al., 1990). 

Several methods for the isolation of PBS have been established [81,104,105,138]. Principally they are based on the observation that PBS are only stable in solutions of high ionic strength, e.g. 0.75-0.9 M potassium phosphate. The PBS are detached from the membranes with 2% Triton X-100. The function of the intact PBS is tested by fluorescence emission spectra at 680 nm upon excitation at 550-650 nm. Most of the structural data describing the PBS originate from the hemidis-coidal type, as reviewed in Refs. 1,77 and 79-86. The complex architecture of the PBS rods and core is best described for the PBS of the cyanobacterium Synechococcus 6301 (a cyanobacterium which contains C-PC but neither PEC nor C-PE in the rods) with a bicylindrical core and for the PBS of the cyanobacterium Syne-chocystis 6701 (which contains C-PC and C-PE in the rods) with a tricylindrical core (reviewed in Refs. 1, 139 and 140). Each cylinder in the core is formed by four complexes of APC trimers with linker polypeptides cylinder A,... 

Mitsui, A., Cao, S., Takahashi, A., and Arai, T. (1987). Growth synchrony and cellular parameters of the unicellular nitrogen-fixing marine cyanobacterium Synechococcus sp. strain Miami BG 043511 under continuous illumination. Physiol. Plantarum. 64, 1—8. 

Bird, C., and Wyman, M. (2003). Nitrate/nitrite assimilation system of the marine picoplanktonic cyanobacterium Synechococcus sp strain WH 8103 Effect of nitrogen source and avaflabflity on gene expression. Appl. Environ. Microbiol. 69, 7009-7018. 

Colher, J. L., Brahamsha, B., and Palenik, B. (1999). The marine cyanobacterium Synechococcus sp. WH7805 requires urease (urea amidohydrolase, EC 3.5.1.5) to utilize urea as a nitrogen source Molecular-genetic and biochemical analysis of the enzyme. Microbiology (UK) 145, 447-459. 

Sakamoto, T., Inoue-Sakamoto, K., and Bryant, D. (1999). A novel nitrate/nitrite permease in the marine cyanobacterium Synechococcus sp. strain PCC. (7002). J. Bacterial. 181, 7363—7372. 

Suzuki, I., Horie, N., Sugiyama, T., and Omata, T. (1995). Identification and characterization of two nitrogen-regulated genes of the cyanobacterium Synechococcus sp. strain PCC 7942 required for maximum efficiency of nitrogen assimilation. J. Bacteriol. 177, 290—296. 

Aichi, M., and Omata, T. (1997). Involvement of ntcb, a LysR family transcription factor, in nitrite activation of the nitrate assimilation operon in the cyanobacterium Synechococcus sp., strain PCC 7942. J. Bactenol. 179, 4671-4675. 

Luque, L, Zabulon, G., Contreras, A., and Houmard, J. (2001). Convergence of two global transcriptional regulators on nitrogen induction of the stress-accKmation gene nblA in the cyanobacterium Synechococcus sp., PCC7942. Mol. Microbiol. 41, 937—947. 

Vazquez-Bermudez, M., Paz-Yepes, J., Herrero, A., and Flores, E. (2002). The MfcA-activated amtl gene encodes a permease required for uptake of low concentrations of ammonium in the cyanobacterium Synechococcus spp. PCC 7942. Microbiology 148, 861-869. 

Ortman, A. C., Lawrence, J. E., and Suttle, C. A. (2002). Lysogeny and lytic viral production during a bloom of the cyanobacterium Synechococcus spp. Microb. Ecol. 43, 225-231. 

Cuhel, R. L., and Waterbury, J. B. (1984). Biochemical composition and short term nutrient incorporation patterns in a unicellular marine cyanobacterium, Synechococcus (WH7803). Limnol. Oceanogr. 29(2), 370—374. 

CoUier, J. L., Brahamsha, B., and Palenik, B. (1999). The marine cyanobacterium Synechococcus sp. WH7805 requires urease (urea amidohydrolase, EC 3.5.1.5) to utilize urea as a nitrogen source molecular-genetic and biochemical analysis of the enzyme. Microbiol.—U.K. 145, 447—459. CoUos, Y. (1998). Covariation of ammonium and nitrate uptake in several marine areas Calculation artefact or indication of bacterial uptake Preliminary results from a review of 76 studies. In Integrated Marine System Analysis. Dehairs, F., Elskens, M., and Goeyens, L. (eds.). Vrije Universiteit, Brussel, pp. 121—138. 

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