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Oscillatoriaceae
The Oscillatoriaceae are a family of cyanobacteria Cyanobacteria (), also known as Cyanophyta, are a phylum of gram-negative bacteria that obtain energy via photosynthesis. The name ''cyanobacteria'' refers to their color (), which similarly forms the basis of cyanobacteria's common name, blu .... References Oscillatoriales Cyanobacteria families {{cyanobacteria-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oscillatoria Princeps
''Oscillatoria princeps'' is the type species (lectotype) of the cyanobacterial (blue green algal) genus ''Oscillatoria''. The cyanobacterium is dark blue green in colour, due to the presence of the phycobilin pigments phycocyanin and phycoerythrin. Individual filaments are blue green to olive green in colour. Growth takes place only by transverse division hence the trichome comprises a single row of cells stacked one above the other. A cytoplasmic sheath is present which is very thin, hyaline and indistinct. Mature trichomes are straight, the cells much broader than long and has hemispherical apical cell with keritomized (irregular to radial thylakoid arrangement) content. Trichome unconstricted in growth phase and constrictions were observed during reproduction. Distinct cross walls present. The size of the cells varies from 57.6 µm to 69.1 µm in width and 5.2 µm to 9.6 µm in length thus the ratio of the length and breadth is 1:8. Stack of poker chip ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lyngbya
''Lyngbya'' is a genus of cyanobacteria, unicellular autotrophs that form the basis of the oceanic food chain. As a result of recent genetic analyses, several new genera were erected from this genus: ''e.g.'', ''Moorea'', '' Limnoraphis'', '' Okeania'', '' Microseira'', and '' Dapis''. ''Lyngbya'' species form long, unbranching filaments inside a rigid mucilaginous sheath. Sheaths may form tangles or mats, intermixed with other phytoplankton species. They reproduce asexually. Their filaments break apart and each cell forms a new filament. The mats grow around atolls, salt marshes, or fresh water. Some ''Lyngbya'' species cause the human skin irritation called seaweed dermatitis. Some ''Lyngbya'' species can also temporarily monopolize aquatic ecosystems when they form dense, floating mats in the water. Ingestion of ''Lyngbya'' is potentially lethal. Most commonly, poisoning is caused by eating fish which have fed on ''Lyngbya'' or which have fed on other fish which have co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oscillatoria
''Oscillatoria'' is a genus of filamentous cyanobacterium which is often found in freshwater environments, such as hot springs, and appears blue-green. Its name refers to the oscillating motion of its filaments as they slide against each other to position the colony facing a light source. ''Oscillatoria'' reproduces by fragmentation, facilitated by dead cells which separate a filament into separate sections, or hormogonia, which then grow. ''Oscillatoria'' uses photosynthesis to survive and reproduce. Each filament of oscillatoria consists of trichome which is made up of rows of cells. The tip of the trichome oscillates like a pendulum. In reproduction, it takes place by vegetative means only. Usually the filament breaks into a number of fragments called hormogonia. Each hormogonium consist of one or more cells and grow into a filament by cell division in one direction. ''Oscillatoria'' are the subject of research into the natural production of butylated hydroxytoluene (BHT), a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phormidium
''Phormidium'' is a genus of cyanobacteria in the family Oscillatoriaceae. Species 83, including; ''Phormidium aerugineo-caeruleum ''Phormidium aerugineo-caeruleum'' is a species of cyanobacteria in the genus ''Phormidium ''Phormidium'' is a genus of cyanobacteria Cyanobacteria (), also known as Cyanophyta, are a phylum of gram-negative bacteria that obtain ener ...'' References Cyanobacteria genera {{Cyanobacteria-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oscillatoriales
The Oscillatoriales are an order of cyanobacteria Cyanobacteria (), also known as Cyanophyta, are a phylum of gram-negative bacteria that obtain energy via photosynthesis. The name ''cyanobacteria'' refers to their color (), which similarly forms the basis of cyanobacteria's common name, blu .... References Bacteria orders {{cyanobacteria-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moorea (bacterium)
Moorea ( or ; Tahitian: ), also spelled Moorea, is a volcanic island in French Polynesia. It is one of the Windward Islands, a group that is part of the Society Islands, northwest of Tahiti. The name comes from the Tahitian word , meaning "yellow lizard": = lizard ; (from ) = yellow. An older name for the island is ', sometimes spelled or (among other spellings that were used by early visitors before Tahitian spelling was standardized). Early Western colonists and voyagers also referred to Moorea as ''York Island'' or ''Santo Domingo''. History Prehistory According to recent archaeological evidence, the Society Islands were probably settled from Samoa and Tonga around 200 CE.Patrick V. Kirch: ''On the Road of the Wind - An Archaeological History of the Pacific Islands Before European Contact'', University of California Press, Berkeley-Los Angeles-London 2000 Nine tribal principalities emerged in the enclosed valleys, which in turn were subdivided into individual cla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
