Filamentous cyanobacteria

Kuritz T, CP Wolk (1995) Use of filamentous cyanobacteria for biodegradation of organic pollutants. Appl... 

Komarek J, Kling H (2003) Filamentous cyanobacteria. In Wehr JD, Sheath RG (eds) Freshwater algae of North America ecology and classification. Academic, San Diego, CA, pp 117-196 Kotak BG, Zurawell RW, Prepas EE, Holmes CFB (1996) Microcystin-LR concentration in aquatic food web compartments from lakes of varying trophic status. Can J Fish Aquatic Sci 53 1974-1985... 

These enzymes are found in filamentous Cyanobacteria, e.g. Anabaena 7120 (Houchins and Burris 1981), Nostoc sp. strain PCC73102 (Oxelfelt et al. 1998) and Anabaena variabilis (Schmitz et al. 1995) where they occur in the heterocysts. They may also occur in vegetative Anabaena cells grown under microaerobic or anaerobic non-N2-fixing... 

When filamentous cyanobacteria such as Nostoc or Anabaena are grown under limited combined N2, 5-10 per cent of their vegetative cells differentiate to form heterocysts. Heterocyst formation does not take place randomly within the filament. Most probably it is a dynamic selection in response to nitrogen deprivation but neither the existence of predetermination nor a combination of both events can be ruled out (Wolk 1996). 

Filamentous cyanobacteria have been used in bioreactors for the photobiological conversion of water to hydrogen. However, the conversion efficiencies achieved are low because of the competing processes of hydrogen production and consumption within... 

Lengke, M.F., Fleet, M.E., Southam, G. 2006. Morphology of gold nanoparticles synthesised by filamentous cyanobacteria for gold(1)-thiosulfate and gold(lll)-chloride complexes. Langmuir, 22, 2780-2787. 

One of the most toxic genera of marine cyanobacteria is Lyngbya — filamentous cyanobacteria within tropical and subtropical waters. Lyngbya... 

Lengke, M., Ravel, B., Elect, M.E., Wanger, G., Gordon, R.A., and Southam, G. 2006b. Mechanisms of gold bioaccumulation by filamentous cyanobacteria from gold (111)-chloride complex. Environmental Science Technology, 40 6304—9. 

Cyanophage of filamentous cyanobacteria (Flewson et al, 2001a, 2004 Ohki, 1999 Ohki and Fujita, 1996) and marine representatives of the unicellular... 

Jahns, T., Schafer, U., and Kaltwasser, H. (1995). Purification and some properties of heat-stable urease from two filamentous cyanobacteria. Microbiology. 141, 737-741. 

Stoecker, D., Autio, R., Rintala, J. M., and Kuosa, H. (2005). Ecto-ceUular enzyme activity associated with filamentous cyanobacteria. Aquat. Microb. Ecol. 40, 151—161. 

Figure 19.4. Cyanobacteria. A colony of the photosynthetic filamentous cyanobacteria shown at 450>...

With the exception of filamentous cyanobacteria, fluorescence from biliproteins such as phycoer) hrin and/or phyco-cyanin is not observed in samples taken by fine plankton nets. 

The present knowledge about genes related to hydrogenases in filamentous cyanobacteria is summarized in Table 1. 

Meeks, J.C. and Elhai, J. (2002) Regulation of cellular differentiation in filamentous cyanobacteria in free-living and plant-associated symbiotic growth states. Microbiol. Mol. Biol. Rev., 66, 94—121. 

Seppala, J., Yldstalo, R, Kaitala, S., Hallfors, S., Raateoja, M., Maunula, P, 2007. Ship-of-opportunity based phycocyanin fluorescence monitoring of the filamentous cyanobacteria bloom dynamics in the Baltic Sea. Estuarine Coastal and Shelf Science, 73, 489-500. 

There are different types of microbial mats, based on colorless sulfur bacteria, purple sulfur bacteria, iron bacteria and cyanobacteria. The most studied mats are those represented by filamentous cyanobacteria. They are widely distributed in protected intertidal sand flats where periodic desiccation discourages colonization hy marine invertebrates. The characteristic, sharply defined, colored hands of such mats (green in the top, red or purple a few millimeters down and heneath this hlack) were recorded as early as the middle of the ninetieth century. Such shallow waters or intertidal mats have now been recorded in many places of the World. These mats are all ephemeral or seasonal, and only in some specific conditions of tropical and subtropical lagoons can they form permanently. 

The worldwide economic impact of undesirable cyanobacterial blooms in municipal water systems is unknown. Increased costs can occur due to increased amounts of activated carbon used in water treatment facilities to counteract higher levels of off-flavor compounds in the water. In addition, filters and filtration equipment can become clogged with certain types of filamentous cyanobacteria and result in significant down time to correct these problems. Certain species of cyanobacteria (e.g., Lyngbya wollei)... 

T regetative cells of certain filamentous cyanobacteria can to form thick-walled cells termed heterocysts and, ir... 

Weckesser, J., Hofmann, K., Jurgens, U.J., Whitton, B.A. and Raffelsberger, B. (1988) Isolation and chemical analysis of sheath from the filamentous cyanobacteria Calothrix parietina and C. scopulorum. Journal of General Microbiology 134, 529-634. 

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