Search results
Results from the WOW.Com Content Network
The phycobilisome components (phycobiliproteins) are responsible for the blue-green pigmentation of most cyanobacteria. [73] The variations on this theme are due mainly to carotenoids and phycoerythrins that give the cells their red-brownish coloration. In some cyanobacteria, the color of light influences the composition of the phycobilisomes.
Like true algae, cyanobacteria are photosynthetic and contain photosynthetic pigments, which is why they are usually green or blue. Cyanobacteria are found almost everywhere; in oceans, lakes and rivers as well as on land. They flourish in Arctic and Antarctic lakes, [23] hotsprings [24] and wastewater treatment plants. [25]
Lake Erie in October 2011, during an intense cyanobacteria bloom [1] [2] Microcystins—or cyanoginosins—are a class of toxins produced by certain freshwater cyanobacteria, commonly known as blue-green algae. [3] Over 250 [4] different microcystins have been discovered so far, of which microcystin-LR is the most common.
Oscillatoria is mainly blue-green or brown-green and is commonly found in watering-troughs. It reproduces by fragmentation forming long filaments of cells which can break into fragments called hormogonia. The hormogonia can then grow into new, longer filaments.
This group of viruses includes the original cyanophage isolate that infected "blue-green algae". [13] [3] Cyanophages in this group are easy to isolate from the environment. [3] They carry short non-contractile tails and cause lysis of several species within three genera of cyanobacteria: Lyngbya, Plectonema and Phormidium. [3]
What is blue-green algae? According to the Walworth County DHHS, "Blue-green algae are photosynthetic bacteria known as 'cyanobacteria,' which can cause illness and death in humans and animals.
Microcystis is a genus of freshwater cyanobacteria that includes the harmful algal bloom-forming Microcystis aeruginosa. Many members of a Microcystis community can produce neurotoxins and hepatotoxins , such as microcystin and cyanopeptolin .
Blue-green algae blooms in wilderness area surprise, challenge scientists. As these northern lakes continue to warm, blue-green algae blooms are starting to show up in the least expected places.