Synechococcus

Table III reports structural statistics relative to the solution structures of iron-sulfur proteins available from the Protein Data Bank (118). The lowest percentage of residue assignment occurs for oxidized Synechococcus elongatus Fd (119). The highest percentage of proton assignment is instead obtained for oxidized E. halophila HiPIP, with a value as high as 95% (120). A close figure was also obtained for the reduced protein (94%). In the latter case, such high values are obtained also thanks to the availability of labeled...

In Synechococcus sp. strain PCC 7002, the temperature-regulated mRNA accumulation of the three desaturase genes, desA (A12 desaturase), desB (co3... 

Gupta A, BA Whitton, AP Morby, JW Huckle, NJ Robinson (1992) Amplification and rearrangement of a prokaryotic metallothionein locus smt in Synechococcus PCC 6301 selected for tolerance to cadmium. Proc Roy Soc (London) SerB 248 273-281. 

Olafson RW, WD McCubbin, CM Kay (1988) Primary- and secondary-structural analysis of a unique prokaryotic metallothionein from a Synechococcus sp. cyanobacterium. Biochem J 251 691-699. 

Aside from C. vinosum, type III-PHA synthases have so far been detected exclusively in the phototrophic purple sulfur bacteria such as Thiocystis viol-acea [51] and Thiocapsa pfennigii [26, 57] and in cyanobacteria such as Synechocystis sp. PCC6803 [49] or Synechococcus sp. MAI 9 [58]. In contrast, the photosynthetic nonsulfur purple bacteria possess type I-PHA synthases. 

Zouni, A., H. T. Witt, J. Kern, P. Fromme, N. Krauss, W. Saenger and P. Orth (2001) Crystal structure of photosystem II from Synechococcus elongatus at 3.8 A resolution. Nature, 409 739-743... 

Wilhelm, S. W., Maxwell, D. P. and Trick, C. G. (1996). Growth, iron requirements, and siderophore production in iron-limited Synechococcus PCC 7002, Limnol. Oceanogr., 41, 89-97. 

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... 

Fig. 2.125. HPLC chromatograms generated at 440 nm. Pure cultures (a) Synechococcus elongatus, (b) 2 micron picosphere , (c) Cyclotella choctawatcheena. Phytoplankton field communities (d) Twin Key Basin, (e) Rabbit Key Basin, (f) Sandy Key Basin, ft = /1-carotene, Z = zeaxanthin, a = chlorophyll-a, N = myxoxanthophyll, E = echinenone, c,/c2 = chlorophylls-Cj/c2, F = fucoxanthin, Col = unknown carotenol, Cone = unknown carotenone, D = diadinoxan-thin, P = peridin. Reprinted with permission from J. W. Louda et al. [283].

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