Filamentous cyanobacterium

Figure 1. Left Anatoxin-a (ANTX-A) hydrochloride. Produced by the freshwater filamentous cyanobacterium Anabaena flos-aquae NRC-44-1. Right Anatoxin-a(s). Produced by the freshwater filamentous cyanobacterium Anabaena flos-aquae NRC-525-17. Bottom Aphantoxin-I (neosaxitoxin) and Aphantoxin-II (saxitoxin) produced by certain strains of the filamentous cyanobacterium Aphantomenon flos-aquae.

A. Hansel, R. Axelsson, P. Lindberg, O. Troshina, R. Wunschiers, P. Lindblad (2001) Cloning and characterization of a hyp gene cluster in the filamentous cyanobacterium Nostoc sp. strain PCC 73102. FEMS Microbiology Letters, 201 59-64... 

T. Happe, K. Schiitz, H. Bohm (2000) Transcriptional and mutational analysis of the uptake hydrogenase of the filamentous cyanobacterium Anabaena variabilis ATCC 29413.. /. Bacteriology, 182 1624-1631... 

One role of cyanobacterial allelochemicals may be to alter the motility and distribution of competing photoautotrophs. In a recent study, Kearns and Hunter (2001) examined the effects of toxic metabolites from the filamentous cyanobacterium A. flos-aquae on a unicellular phytoplankton species, Chlamydomonas rein-hardtii. A. flos-aquae synthesizes both microcystins as well as anatoxins, providing the authors with an ecologically relevant opportunity to assess the individual and combinatorial effects of these toxins on an alga. 

The analytical device is represented by an amperometric biosensor able to monitor the evolution of photosynthetic 02, obtained by coupling a suited algal bioreceptor to a Clark electrode. The selected algal species is the marine filamentous cyanobacterium Spirulina subsalsa (Campanella [4]). Further details on the application of biosensors for integral toxicity... 

Onodera, H., Satake, M., Oshima, Y., Yasumoto, T., Carmichael, W.W. (1997). New saxitoxin analogues fi om the freshwater filamentous cyanobacterium Lyngbya wollei. Nat. Toxins 5 146-51. 

Carpenter, E. J., andjanson, S. (2001). Anabaena gerdii (sp. nov.), anew heterocystous, filamentous cyanobacterium from the South Pacific Ocean and Arabian Sea. Phycologia. 40, 105—110. 

Wang, Q., Li, H., and Post, A. F. (2000). Nitrate assimilation genes of the marine diazotrophic, filamentous cyanobacterium Trichodesmium sp. strain WH9601. J. Bacterial. 182, 1764—1767. 

Koster J., Volkman J. K., Rullkotter J., Scholz-Bottcher B. M., Rethmeier J., and Fischer U. (1999) Mono-, di- and trimethyl-branched alkanes in cultures of the filamentous cyanobacterium Calothrix scopulorum. Org. Geochem. 30, 1367-1379. 

The absorption and fluorescence spectra ofthe four representative phycobiliproteins are shown in Fig. 5 allophycocyanin from the filamentous cyanobacterium Ana aena variabilis, R-pbycocyanin and B-phycoerythrin from tbe unicellular red alga Porphyridium cruentum, and R-phycoerytbrin from the red alga Gastroclonium coulteri. 

Figure 19.4 Cyanobacteria. A colony of the photosynthetic filamentous cyanobacterium Anabaena shown at 450 X magnification. Ancestors of these bacteria are thought to have evolved into present-day chloroplasts. [James W. Richardson/Visuals Unlimited.]... 

Simon, R.D. (1976) The biosynthesis of multi-l-arginyl-poly(L-aspartic acid) in the filamentous cyanobacterium Anabaena cylindrica. Biochim. Biophys. Acta, 422, 407-418. 

Aerobic bacteria such as Azotobacter vinelandii, Alcaligenes eutrophus, and Nocardia opaca, and facultative anaerobes, such as Escherichia coli and various species of Rhizobium and Bradyrhizobium (the symbionts of leguminous plants), also contain hydrogenase, as do photosynthetic bacteria such as Chromatium vinosum, Rhodobacter capsulatus (formerly Rhodopseudomonas capsulata), and Anabaena variabilis (a filamentous cyanobacterium). The thermophilic hydro-... 

In addition to being rich in phycobiliproteins, Spirulina, a filamentous cyanobacterium, contains a wide variety of nutrients including potentially beneficial proteins, lipids, vitamins, and antioxidants. 

The filamentous cyanobacterium, Oscillatoria perornata is common to catfish farms in west Mississippi, USA (Schrader and Harries, 2001), and it produces 2-methylisobomeol, which is rapidly absorbed across the gills and accumulates in the adipose tissue. The fish cannot be harvested when levels exceed quality standards. This results in an average yield reduction of 15% in the U.S. catfish farming (Tucker, 2005). Depuration or purging of fish with clean water can take several days to reduce off-flavors and this results in further financial losses to the industry (Tucker, 2000). 

Adams, D.G., Ashworth, D. and Nelmes, B. (1999). Fibrillar array in the cell wall of a gliding filamentous cyanobacterium./. Bacteriol. 181, 884-892. 

Cohen, M.E., Wallis, J.G., Campbell, E.L., and Meeks, J.C. (1994) Trans-poson mutagenesis of Nostoc sp. strain ATCC 29133, a filamentous cyanobacterium with multiple cellular differentiation alternatives. Microbiology, 140 (12), 3233-3240. 

Heng RL, Lee E, Pdon L Radiation characteristics and optical properties of filamentous cyanobacterium Anabaena cylindrica,J Opt Soc Am A 31 (4) 836-845, 2014. 

Despite the many studies on photosynthesis in heterocysts, little is known about the functional organization of the photosynthetic apparatus in heterocysts. We report here characterization of PS II in highly purified heterocysts of a heterotrophic filamentous cyanobacterium. Nos toe sp. ATCC 29150. 

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