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Blue Green | Cyanobacteria | Photosynthesis

Cyanobacteria can change remarkably in appearance, depending on the environmental conditions.

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Photosynthetic Organisms - Plants, Algae, Cyanobacteria

Cyanobacteria, however, lack the organized chloroplasts of eukaryotes and have their photosynthetic apparatus distributed peripherally in the cytoplasm.

Cyanobacteria are different in many important ways from other photosynthetic prokaryotes.

The variety of striking colors exhibited by Cyanobacteria are a result of their major light-gathering pigments, the phycobilins, that are bound to protein granules, (phycobilisomes), that are attached to the photosynthetic membranes.

Cyanobacteria: Blue-Green Algae

Large blooms of freshwater Cyanobacteria may produce toxins that can kill livestock.

Cyanobacteria are oxygenic photosynthetic . They harvest the sun's energy, absorb carbon dioxide, and emit oxygen. Like plants and algae, cyanobacteria contain chlorophyll and convert carbon dioxide to sugar through carbon fixation. Unlike eukaryotic plants and algae, cyanobacteria are . They lack a membrane bound , , and other found in and . Instead, cyanobacteria have a double outer and folded inner thylakoid membranes that are used in . Cyanobacteria are also capable of nitrogen fixation, a process by which atmospheric nitrogen is converted to ammonia, nitrite, and nitrate. These substances are absorbed by plants to synthesis biological compounds.

Cyanobacteria are found in various and . Some are considered because they live in extremely harsh environments such as hotsprings and hypersaline bays. can even survive the harsh conditions of space. Cyanobacteria also exist as phytoplankton and can live within other organisms such as (lichen), , and . Cyanobacteria contain the pigments phycoerythrin and phycocyanin, which are responsible for their blue-green color. Due to their appearance, these bacteria are sometimes called blue-green algae, although they are not algae at all.

New power cell taps into "blue-green" power source

Other forms (Spirulina) are grown commercially and marketed as a high-protein dietary supplement.

Anoxygenic photosynthetic bacteria are photoautotrophs (synthesize food using sunlight) that don't produce oxygen. Unlike cyanobacteria, plants, and algae, these bacteria don't use water as an electron donor in the during the production of ATP. Instead, they use hydrogen, hydrogen sulfide, or sulfur as electron donors. Anoxygenic photosynthetic bacteria also differ from cyanobaceria in that they do not have chlorophyll to absorb light. They contain bacteriochlorophyll, which is capable of absorbing shorter wavelengths of light than chlorophyll. As such, bacteria with bacteriochlorophyll tend to be found in deep aquatic zones where shorter wavelengths of light are able to penetrate.

General arrangement of antenna complexes in algae. In green algae as well as in higher plants (a) the antenna complex is in the membrane and associates with the photosystem in the membrane. In red algae and cyanobacteria (b) the antenna complex is a phycobilisome and is a soluble protein. The phycobilisome attaches to the photosystem where the photosystem extends from the membrane.

Blue-green algae bloom on the Yahara River near the Tenney locks, June 2017
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  • Cyanobacteria | Cyanobacteria | Photosynthesis

    Blue-green algae are common in soil, in both salt and fresh water, and can grow over a wide range of temperatures.

  • Algae and Cyanobacteria - GreenWater Laboratories

    Cyanobacteria can also occur as symbionts of protozoans, diatoms and lichen-forming fungi, and vascular plants.

  • Photosynthesis and Respiration of Three Blue-Green Algae.

    A blue-green revolution: Upgrading photosynthesis 22 February 2011 by Bob Holmes Magazine issue 2800

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What are algae and cyanobacteria

The energy provided bycoal, oil, and gas comes from photosynthesis carried on by plants ofearlier times and preserved down through the ages, to be released bycombustion in modern industrial processes.

Blue Green Algae - The Free Freshwater and …

Euglena are unicellular protists in the genus Euglena. These organisms were classified in the phylum with algae due to their photosynthetic ability. Scientists now believe that they are not algae but have gained their photosynthetic capabilities through an endosymbiotic relationship with green algae. As such, Euglena have been placed in the phylum Euglenozoa.

BGA is short for Blue Green Algae, ..

Most of the energyreleased both by the burning of fossil fuels and by the metabolism ofliving cells is given off as heat and must be replaced by thecontinued input of radiant energy from the Sun.The principal organic products of plant photosynthesis arecarbohydrates.

Respiration in Blue-Green Algae - ResearchGate

Algae can be unicellular or can exist as large multicellular species. They live in various habitats including salt and freshwater , wet soil, or on moist rocks. Photosynthetic algae known as phytoplankton are found in both marine and freshwater environments. Most marine phytoplankton are composed of and . Most freshwater phytoplankton are composed of and cyanobacteria. Phytoplankton float near the surface of the water in order to have better access to sunlight needed for photosynthesis. Photosynthetic algae are vital to the global such as carbon and oxygen. They remove carbon dioxide from the atmosphere and generate over half of the global oxygen supply.

The Blue-green Algae - ScienceDirect

The rate alsovaries with the plant species and its physiological state.Photosynthesis is not a single process but consists of a number ofphotochemical and enzymatic reactions.

Blue-Green Algae | SpringerLink

are eukaryotic organisms that have characteristics of both and . Like animals, algae are capable of feeding on organic material in their environment. Some algae also contain and structures found in animals cells, such as and . Like plants, algae contain photosynthetic organelles called . Chloroplasts contain chlorophyll, a green pigment which absorbs light energy for . Algae also contain other photosynthetic pigments such as carotenoids and phycobilins.

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