Volume 99. p. 157-162. However, this model organism appears to have lost, through laboratory domestication, behaviors that are important in a natural environment, such as biofilm formation and phototaxis. Summary: The experiment involved creating a reporter assay to show that under stress conditions, only the dnaK2 gene was induced. 7. The cyanobacterium Synechococcus elongatus (S. elongatus) PCC 7942 is a unicellular, obligate photoautotroph that represents a preeminent model for studying photosynthesis and circadian rhythms [ 5, 6 ]. Information curated includes metabolic enzymes and pathways as well as several signal-transduction pathways. Volume 40. p. 1-12. Synechococcus elongatus PCC 7942 ( S. elongatus PCC 7942) is a model cyanobacteria species for circadian clock mechanism studies. Previously, the cyanobacterium Synechococcus elongatus PCC 7942 was engineered to produce 1-butanol through the introduction of a modified CoA-dependent pathway. addContextSpecificToolbarMenus(); Synechococcus elongatus is a photoautotroph, due to its ability to undergo photosynthesis using energy from sunlight, carbon dioxide, and water (9). In eutrophic habitats or habitats with high nutrients, blooms of cyanobacteria can occur, producing harmful neurotoxins that effect the nerve cells of other organisms (4). Sugita, C. et al. Pauli Kallio 1 Received: 26 November 2018 / Accepted: 26 April 2019 / Published online: 8 May 2019 Even though it was isolated from S. elongatus 625, it is most closely related to S. elongatus PCC 7942 with 99.8% similarity. Geitler first identified Synechococcus elongatus in Germany during the year 1925. To accomplish the isopropanol production under photosynthetic conditions, we hypothesized that the acetate biosynthesis from carbon dioxide in the … 2007. Synechococcus elongatus PCC 6301 contains a circular chromosome 2,696,255 bp long with a GC content of 55.5 percent. Currently, two complete Synechococcus elongatus (previously known as Anacystis nidulans) genomes have been sequenced, Synechococcus elongatus PCC 6301 and Synechococcus elongatus PCC 7942. Frenkel and his colleagues took a suspension of the water and identified the blue-green algae as Synechococcus elongatus. 2005. PCC 7942 It was this isolate, previously known as Anacystis nidulans R2, that was the first cyanobacterium demonstrated to be reliably transformable by exogenously added … Volume 151. p. 1263-1273. Volume 27. p. 318-329. hidedelay: 700 Synechococcus elongatus PCC7942 NCBI taxonomy Id: 1140 Other names: Anacystis nidulans R2, S. elongatus PCC 7942, Synechococcus elongatus PCC 7942, Synechococcus elongatus PCC7942, Synechococcus leopoliensis UTEX 2434, Synechococcus leopoliensis strain PCC 7942, Synechococcus sp. “Biological and ecological characterization of the marine unicellular cyanobacterium Synechococcus.” Can. In order to maximize CO₂ fixation and production rates of valuable product, a high cell growth rate needs to be achieved. 2 The genomes of several species of Synechococcus have been fully sequenced, most notably Synechococcus elongatus strain PCC 7942 and species strain WH8102. Frenkel, Albert et al. However, Synechococcus have been found to flourish in environments with variable salinity and temperatures as well as certain oligotrophic environments (2). Photosynthesis occurs at the cell membrane inside thylakoids, which are compartments containing the photosynthetic pigments. YAHOO.util.Event.onContentReady("pathwayToolsMenubar", function () { Over the … The genome sequence of Synechococcus UTEX 2973 was similar to the cyanobacterium Synechococcus PCC 7942. Synechococcus elongatus PCC 7942 (Pasteur Institute, France) was propagated on BG-11 agar medium (Rippka et al., 1979). on the screen. Mechanisms of phototaxis have been studied in the coccoid cyanobacterium Synechocystissp. Two genomic strains of these cyanobacteria have been sequenced: Synechococcus elongatus PCC 6301 and Synechococcus elongatus PCC 7942. Taxonomy - Synechococcus elongatus (strain PCC 7942 / FACHB-805) (Anacystis nidulans R2) IAM M-200, Synechococcus sp. 6. However, this model organism appears to have lost, through laboratory domestication, behaviors that are important in a natural environment, such as biofilm formation and phototaxis. Note: if you create a user account and log in, you can save your database lists for next time. The wild type and engineered strains were cultivated in 250 ml Erlenmeyer flasks containing 100 ml BG-11 medium (pH 7.5) under continuous illumination of 50 μE/m 2 /s at 28 ± 1°C with atmospheric CO 2 … In this study, a model cyanobacterium, Synechococcus elongatus PCC 7942, is engineered to produce free fatty acids (FFA), potential biodiesel precursors, via gene knockout of the … Sci. updateBannerClass(); In areas of high nutrients such as coastal plumes or contributions of pollutions, Synechococcus blooms may occur, producing harmful neurotoxins as mentioned earlier (2). // order to programmatically alter the menus. The pathway introduced into S. elongatus PCC 7942 for isopropanol production can function under aerobic conditions in Escherichia coli (26). shadow: false, 1981. Extensive studies on cyanobacterium Synechococcus elongatus PCC 7942 have assessed the dual function of carbon capture with product generation such as biodiesel and recombinant protein. // Render the MenuBar instance Both strains are closely related to each other. /* This code needs to be here to avoid the menu and other Yahoo widgets to flicker “Expression analysis of multiple dnaK genes in the cyanobacterium Synechococcus elongatus PCC 7942.” Journal of Microbiology. Olson, R. J. et al. }); Shift-click to select a range; Ctrl-click to select multiple non-contiguous organisms. S. elongatus strain DC11, a … Synechococcus elongatus PCC 7942: Accession numbers: NC_007595, NC_007604: Background: The freshwater cyanobacterium Synechococcus PCC 7942 (previously known as Anacystis nidulans R2) was the first cyanobacterium demonstrated to be reliably transformable by exogenously added DNA. This suggested each dnaK homologue had a specific function (5). The Synechococcus elongatus PCC 7942 genome contains 2719 genes, which we have assigned computationally to 1964 … Synechococcus elongatus is unicellular, rod-shaped, and may appear in the environment as isolated, paired, linearly connected, or in small clusters. Cyanobacteria, The cyanobacterium Synechococcus elongatusPCC 7942 is widely used in basic and applied research. Synechococcus, Synechococcus elongatus has one circular chromosome and two plasmids. cellular organisms, “Role of the GlgX protein in glycogen metabolism of the cyanobacterium, Synechococcus elongatus PCC 7942.” Biochim Biophys Acta. 3. (2006) Koksharova, … In this study, transgenic Synechococcus elongatus PCC 7942 (TA) was constructed by cloning the Oryza sativa L. japonica DHAR (OsDHAR) gene controlled by an isopropyl β-D-1-thiogalactopyranoside (IPTG)-inducible promoter (Ptrc) into the cyanobacterium to study the functional activities of OsDHAR under oxidative … Taxonomic Lineage: 2. Living habitats include freshwater hot springs and other freshwater habitats preferably with a mesophilic or moderate temperature range (9). strain PCC 6803, but the rod-shaped Synechococcus elongatusPCC 7942, studied for circadian rhythms and metabolic engineering, has no phototactic motility. The circadian clock proteins include KaiA, KaiB, and KaiC. Non-diazotrophic cyanobacteria are unable to fix atmospheric nitrogen and rely on combined nitrogen for growth and development. Synechococcus elongatus, Fish. onMenuBarReady.fire([]); 1950. Synechococcales, By disrupting the glgx gene, GlgX protein was not produced. Aquat. Volume 214. p. 71-120. A very significant by-product of Synechococcus elongatus photosynthesis is oxygen. J. Microbiol. This cyanobacterium is able to swim or glide despite lacking flagella or cilia. Koksharova OA et al. Authors: Scanlan, D. J. and Nyree, J. W. “Molecular ecology of the marine cyanobacterial genera Prochlorococcus and Synechococcus.” FEMS Microbiology Ecology. Synechococcus elongatus PCC 7942 is a model freshwater cyanobacterium. The addSiteSpecificMenuItems(); $$('.yuimenu').each(Element.show); S. elongatus UTEX 2973 contains a SNP to the gene encoding ATP synthase F1 subunit α, comparable to the corresponding gene in Synechococcus PCC 7942. … This study was accomplished by disrupting the glgx gene using an inserstional inactivation technique. Later, Frenkel et. Ron Caspi1, Through photosynthesis, Synechococcus elongatus may perform biosynthesis and respiration. YAHOO.util.Event.onAvailable("body", function () { It moves in a wave-like manner and this movement is possibly accomplished via projections from the cell surface (9). This cyanobacterium has an “endogenous timing mechanism” so can create and maintain a 24 hour clock period. Other accessory pigments include phycobiliproteins, which give the blue-green coloration or pigmentation of Synechococcus elongatus as well as other cyanobacteria (2). Cyanobacteria strain was grown in BG-11 medium at 34 °C under continuous illumination with white fluorescence lamps. A Microbial Biorealm page on the genus Synechococcus elongatus, Bacteria; Cyanobacteria; Chroococcales; Synechococcus. Terrabacteria group, Also, its movement is not influenced by light stimulation. This study was accomplished by disrupting the glgx gene using an inserstional inactivation technique. From MicrobeWiki, the student-edited microbiology resource, https://microbewiki.kenyon.edu/index.php?title=Synechococcus_elongatus&oldid=64938. Synechococcus elongatus PCC 7942 genome contains 2719 genes, which we have assigned computationally to 1964 transcription units. {autosubmenudisplay: true, Sato, M. et al. The research determined the GlgX protein plays a role in forming the “branching pa… "Complete nucleotide sequence of the freshwater unicellular cyanobacterium Synechococcus elongatus PCC 6301 chromosome: gene content and organization. Synechococcus elongatus PCC 7942 has focused on photosynthesis, circadian clock systems, and nitrogen metabolism. ", Photosynth Res. Gene organization and sequence are nearly identical to another freshwater cyanobacterium Synechococcus elongatus PCC 6301 (SYNP6) … Obligate phototrophs' core metabolism is very similar to that of heterotrophic counterparts exhibiting diverse … As noted earlier, they are approximately responsible for 25% of the primary production in the marine environment (9). Waterbury, J. 2007. Synechococcus elongatus is a freshwater photoautotroph and insignificantly contributes to primary production in the world. As a result, the glycogen content of the glgx mutant cell had short chains. Obligate phototrophs' core metabolism is very similar to that of heterotrophic counterparts exhibiting diverse trophic behavior. It is an obligate photoautotroph, with a genome of approximately 2.7 Mb, and two endogenous plasmids, pANL and pANS. The genus Synechococcus encompasses cyanobacteria in both freshwater and marine environments. in 1950 discovered Synechococcus elongatus in small rain-filled pools on Angelica Rock, located in Massachusetts. We have refined this PGDB by manual curation of data from over 600 research papers, integrating knowledge contributed by many researchers from different fields. et al. Synechococcus elongatus PCC 7942 also contains a circular chromosome approximately 2,700,000 bp long with a GC content of 55.5 percent. “Energy Transfer in Photosystem I of Cyanobacteria Synechococcus elongatus: Model Study with Structure-Based Semi-Empirical Hamiltonian and Experimental Spectral Density.” Biophysical Journal. 2002. 12. Database lists are saved as SmartTables that you can edit from your, ©2019 SRI International, 333 Ravenswood Avenue, Menlo Park, CA 94025-3493. PCC 6803 or Synechococcus elongatus PCC 7942, enter a dormant stage called chlorosis. In the absence of combined nitrogen sources, most non-diazotrophic cyanobacteria, e.g., Synechocystis sp. Synechococcus elongatus strain PCC 7942 strictly depends upon the generation of photosynthetically derived energy for growth and is incapable of biomass increase in the absence of light energy. Protein target information for Uracil phosphoribosyltransferase (Synechococcus elongatus PCC 7942). One plasmid of Synechococcus elongatus PCC 7942 is currently being sequenced by Dr. Golden’s lab at Texas A&M University in conjunction with the DOE Joint Genome Institute. The mixed layer is the layer from the ocean surface to a certain depth where density is approximately similar to the surface. Synechococcaceae, 11 -- Bacterial, Archaeal and Plant Plastid (same as Standard, except for alternate initiation codons). The cyanobacterium Synechococcus elongatus PCC 7942 is widely used in basic and applied research. Synechococcus elongatus strain PCC 7942 strictly depends upon the generation of photosynthetically derived energy for growth and is incapable of biomass increase in the absence of light energy. However, marine unicellular photoautotrophs of genus Synechococcus make a major and significant contribution to primary production. These genes encode 2674 polypeptides. Much of the research conducted with oMenuBar.render(); 2003. “Photosynthesis and photoreduction by the blue green alga, Synechococcus elongatus, Nag.” Biology Bulletin. 4. The cyanobacterium Synechococcus elongatus PCC 7942 is a potential photosynthetic cell-factory. Synechococcus elongatus PCC 7942. Nucleotide (GenBank) : CP000101 Synechococcus elongatus PCC 7942 plasmid 1, complete sequence Permits: These permits may be required for shipping this product: Customers located in the state of Hawaii will need to contact the Hawaii Department of Agriculture to determine if an Import Permit is required. B. et al. Volume 189. p. 3751-3758. */ /* Synechococcus elongatus is currently not known to cause any diseases. 2007. 5. Synechococcus elongatus is a Gram-negative bacterium with an inner and outer cell membrane enveloping a cell wall (3). One current study is the function of the GlgX protein in Synechococcus elongatus PCC 7942. Although it has been reported that DNA replication also depends on light irradiation in S. elongatus 7942, the involvement of the light in the regulation of DNA replication remains unclear. al. PCC 7942 Quantitative real-time PCR (qPCR) technology is the most commonly used method for studying … We characterized a wild isolate of S. elongatus … // User sites can define this fn in userWebsiteCustomization.js in By disrupting the glgx gene, GlgX protein was not produced. Their ability to survive in oligotrophic environments may be partly due to the closely packed colonies they form to allow the recycling of used nutrients (2). 9. Log in and reload this page to access your saved database lists. “A circadian timing mechanism in the cyanobacteria.” Adv Microb Physiol. COVID-19 is an emerging, rapidly evolving situation. As a result, the glycogen content of the glgx mutant cell had short chains. The freshwater cyanobacterium Synechococcus elongatus PCC 7942 exhibits light-dependent growth. Another study involves the analysis of three dnaK homologues (dnaK1, dnaK2, and dnaK3) and their stress responses in Synechococcus elongatus PCC 7942. An equal distribution of Synechococcus is seen throughout the mixed layer with favored habitation in the photic zone (2). NCBI-Taxonomy:1140, Genetic Code Number: Synechococcus elongatus PCC 7942 A marine cyanobacterium Lineage: Bacteria [ 2719 ]; Cyanobacteria [ 83 ]; Chroococcales [ 44 ]; Synechococcus [ 24 ] Synechococcus .These unicellular cyanobacteria are also known as blue green algae and along with Prochlorococcus are responsible for a large part of the carbon … Alex Shearer1, Since Synechococcus are photoautrophs and require light to perform photosynthesis, they reside in well lit depths of the water with enough sunlight for photosynthesis. Williams, S.B. Carbon dioxide is then converted to glucose through the Calvin cycle and is used for biosynthesis or other energetic needs. Peter D Karp1. Despite past research, not much is known on how the circadian clock mechanism functions and its connection to the environment in terms of regulating gene expression (10). 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