Secondly, they can be used in various foods and medicinal products like vitamins, growth factors and drug compounds. Cyanobacteria were among the earliest life forms on the Earth. The ability of some species of cyanobacteria to fix nitrogen gives them a competitive advantage in low nitrate, low ammonium waters, and may also contrib-ute substantial quantities of new nitrogen to aquatic ecosystems. These heterocysts are involved in the fixation of atmospheric nitrogen. Some plants have evolved to form symbiotic relationships with it, with cyanobacteria residing within the plant roots. They show the following characteristics: Bacteria have both positive and negative importance. Blue Green Algae (CyanoBacteria) – Characteristics, Reproduction, Examples, Economic Importance, Classification, Phylogeny. Economic Importance of Cyanobacteria. Cyanobacteria produce a range of toxins known as cyanotoxins that can pose a danger to humans and animals. The term cyanobacteria were given to them by the International Code of Bacterial Nomenclature (1978). Cyanotoxins is the collective name for the different types of toxins produced by cyanobacteria they can be separated into three broad categories; each of which consists of a range of different toxic compounds. Reproduction 4. They are one of the early colonizers of bare and barren areas. Toxic blooms in lakes can also reduce populations of numerous species due to toxicity or other impacts such as excessive shading. There is growing evidence that human activities are changing the distribution and movement of major nutrient elements in the landscape resulting in increased nutrient loading to receiving waters (NRC, 2000). From certain bacteria, antibiotics are obtained, for example, Terramycin, Streptomycin, Neomycin, etc. Economic Importance. It contains 60%. Bacteria increase the fertility of the soil by adding organic substances due to the decompositions of dead bodies. They were previously known as ‘blue-green algae’. They exhibit several types of chromatic adaptation, regulated at transcriptional and postranscriptional levels. According to the World Health Organization, algae blooms in human water supplies is becoming an increasing problem worldwide. These are also called blue-green algae or cyanophyte. Cyanobacteria account for approximately 20 to 30 percent of the photosynthesis on the planet today, and continue to play an important role in the composition of the atmosphere. This process, called nitrogen fixing, is very important for the growth of many types of plants. Cyanobacterial photopigments generate a great diversity in color. Certain bacteria are present in the intestine of man and help in the digestion of cellulose. Cyanobacteria help in the reclamation of USAR soil. Bottom-up controls, such as changes in nutrient loading, can alter the species composition of primary producers (Stolte et al., 1994; Ingrid et al., 1996; Roelke et al., 1999). ), Pneumonia, Cholera, Typhoid, Tetanus, Syphilis, and Diphtheria, etc. Species of Nostoc and Anabana help in nitrogen fixation. Economic importance of cyanobacteria 2. they convert Nitrogen into its compounds like nitrites and nitrates. It has been widely reported that cyanobacteria soil crusts help to stabilize soil to prevent erosion and retain water. Heterocyst 6. While it was easy to figure out who did it with regard to our oxygenated atmosphere, figuring out how they did it has been trickier. As cyanobacteria proliferated billions of years ago, the Earth's carbon dioxide-rich atmosphere gradually changed to include increasing amounts of oxygen. They produce their food through photosynthesis. They release 02 in the environment during their photosynthetic activity. The importance of cyanobacteria and microalgae present in aerosols to human health and the environment - Review study. Johnson's areas of expertise include business process outsourcing, international business, finance and investing. At times, when provided a water environment that is particularly rich in nutrients, cyanobacteria will produce very large populations, or blooms. Cyanobacteria have been found to play an important role in terrestrial habitats. As pollution indicator 4. On the prokaryotic side, there are diverse forms of bacteria and a group generally termed blue-green algae. Bacteria are also used in the leather industry. important of these are glucosylglycerol (which can account for up to 30% of dry weight in cells grown in hypersaline media) and glycine betaine. Cyanobacteria Stanier ex Cavalier-Smith (or cyanoprokaryotes, or, formerly, blue-green algae, cyanophyceae, myxophyceae, calcibionta, and calcimicrobes) are a phylum of phototrophic Prokaryota. Economic Importance of Cyanobacteria: 1. Cyanobacteria can also produce toxins that are dangerous to humans and animals. Use as food 6. An acidic chemical that is synthesized naturally by the cyanobacteria reduces the soil alkalinity. Many species of cyanobacteria produce toxins to help prevent them being eaten by animals. The cyanobacteria also known as algae is economically very important. Cyanobacteria improve the fertility of the soil. The cyanobacteria have also been tremendously important in shaping the course of evolution and ecological change throughout earth's history. ABSTRACT Airborne microalgae and cyanobacteria are among the least studied organisms in aerobiology. Anti-HIV activity of marine cyanobacterial compounds from Lyngbya lagerheimii and Phormidium tenue. Cyanobacteria are the most efficient among all living organisms in the harvesting of solar energy and are currently looked at as highly attractive candidates for biofuel production. Les Cyanobacteria, ou cyanobactéries, sont un embranchement de bactéries (procaryotes), également appelées « algues bleues », ou autrefois « algues bleu-vert ». Cyanobacteria occurring in wall and roof of houses in rainy season causes corrosion. An example of a cyanobacterial species that does so is Microcoleus vaginatus. Sometime between 2 and 4 billion years ago, cyanobacteria developed the capacity for photosynthesis, which produces oxygen as a byproduct. They develop a symbiotic relationship with protozoa fungi and plants. By signing up, you'll get thousands of step-by-step solutions to your homework questions. Cyanobacteria Stanier ex Cavalier-Smith (or cyanoprokaryotes, or, formerly, blue-green algae, cyanophyceae, myxophyceae, calcibionta, and calcimicrobes) are a phylum of phototrophic Prokaryota. Bacteria decompose the dead remains of plants, animals, and human beings into simpler compounds. Globally, cyanobacteria are important primary producers and play a crucial role in the biogeochemical cycles of nitrogen, carbon, and oxygen. Classification of Cyanobacteria 3. Because they require the basic environmental conditions, this bacteria can be found in a variety of environments ranging from marine to terrestrial habitats. Cyanobacteria have heterocysts. These are single-celled cyanobacteria. Many Proterozoic oil deposits are attributed to the activity of cyanobacteria. They are one of very few groups of organisms that can convert inert atmospheric nitrogen into an organic form, such as nitrate or ammonia. The ability to process atmospheric nitrogen and render it into an organic form is also possessed by cyanobacteria. "Advances in Experimental Medicine and Biology"; Cyanobacteria Blooms: Effects on Aquatic Ecosystems; KE Havens; 2008, The Canadian Encyclopedia: Blue-Green Algae, University of California Museum of Paleontology; Cyanobacteria: Life History and Ecology, University of Hawaii at Manoa: Cyanophyta. 2. They help in the reclamation of alkaline soil. Blue green algae (cyanobacteria) has been given the status of class by some workers and they call it Myxophyceae (Gr. Gloeocapsa cyanobacteria can even survive the harsh conditions of space. He holds a Bachelor of Arts in government from Cornell University. Cyanobacteria are also considered as blue green algae and they play an important role in the ecosystem. It prevents soil erosion. Though all cyanobacteria are fundamentally oxygenic … Cyanobacteria Stanier ex Cavalier-Smith (or cyanoprokaryotes, or, formerly, blue-green algae, cyanophyceae, myxophyceae, calcibionta, and calcimicrobes) are a phylum of phototrophic Prokaryota. Les cyanobactéries sont des organismes procaryotes mixotrophes ne présentant ni noyau véritable, ni plaste, ni reproduction sexuée. Application in biotechnology 7. Wiśniewska K(1), Lewandowska AU(2), Śliwińska-Wilczewska S(3). Symbiotic relationship 5. Conclusion 3. Cyanobacteria contain the pigments phycoerythrin and phycocyanin, which are responsible for their blue-green color. Importance. It is these "fixed" forms of nitrogen which plants need for their growth, and must obtain from … *Most … The ability to process atmospheric nitrogen and render it into an organic form is also possessed by cyanobacteria. These blue-green algae are a complete whole food. Introduction 2. Much like mitochondria in animal cells, chloroplasts are genetically unique from their parent cells. Cyanobacteria also exist as phytoplankton and can live within other organisms such as fungi (lichen), protists, and plants. Some plants have evolved to form symbiotic relationships with it, with cyanobacteria residing within the plant roots. Cyanobacteria within these consortia facilitated the degradation processes by providing the associated oil-degrading bacteria with the necessary oxygen, organics and fixed nitrogen. They help in Reclamation of alkaline soil. Species are Lyangbia can be used in the preparation of antibiotics. They were fundamentally important in Earth history, as primary producers and on the progressive atmospheric oxygenation. Today, Cyanobacteria can be found almost everywhere on Earth — likely right outside your door in the soil — and still play an important role in producing the oxygen that we breathe. In recent years, however, they have mostly been the subject of negative headlines. They are the chief primary producers of organic matter and also the first organisms to release elemental oxygen, O2. Cyanobacteria have great economic importance. The nitrogen-fixing species form association with. Parasexuality 5. Cyanobacteria are one of the early colonizers of bare and barren areas and generate such conditions that favour the growth of other organisms even in the most hostile environment. They produce an unpleasant smell. Spirulina is an edible cyanobacterium, which produces SCPs (single … They are also important providers of nitrogen fertilizer in the cultivation of rice and beans. Cyanobacteria are very important organisms for the health and growth of many plants. Nostoc species can be used as a protein rich food. Economic importance of Cyanobacteria . There are two main patterns of cellular organization-prokaryotic and eukaryotic. ; Cyanobacteria occurring in wall and roof of houses in rainy season causes corrosion. Cyanobacteria is also composed of a wide variety of bacteria species of different sh… Not only has cyanobacteria been an important element for forming the earth's oxygen atmosphere, but it has also contributed to many other attributes important to human life. Cyanobacteria have heterocysts. ♣ They convert atmospheric nitrogen into ammonium compounds and excess of these compounds is excreted … These compounds are used by the plants. Copyright 2020 Leaf Group Ltd. / Leaf Group Media, All Rights Reserved. A large amount of organic matter suspends in this water bloom. Importance of Cyanobacteria. Bacteria also take part in nitrogen fixation i.e. ADVERTISEMENTS: Some of the important characteristic features of Cyanobacteria are as follows! They provide suitable conditions for the growth of other organisms even in the most hostile environment. The following points highlight the nine Importance of Cyanobacteria. They release 02 in the environment during their photosynthetic activity. In addition to these applications, cyanobacteria … There are many different varieties of cyanobacteria. 1. The cyanobacteria have also been tremendously important in shaping the course of evolution and ecological change throughout earth's history. We do now. Importance 3. ADVERTISEMENTS: Some of the important characteristic features of Cyanobacteria are as follows! They are used in the formation of butter and cheese from milk. Cyanobacteria have heterocysts.These heterocysts are involved in the fixation of atmospheric nitrogen. Importance of Cyanobacteria: Cyanobacteria, a group of photosynthetic prokaryotes, have drawn the attention of agricultural scientists due to their notable key features such as the presence of oxygenic photosynthesis along with nitrogen fixation, ease in genetic manipulation and excellent adaptability to various environmental vagaries. Scott Johnson has spent over 10 years as President of Interactive Composition Corporation, a publishing services company with offices in Portland, Oregon and New Delhi, India. They provide suitable conditions for the growth of other organisms in a hostile environment. Despite their importance, we never really knew where these Cyanobacteria came from, how they evolved, when some began producing oxygen, or what their closest relatives were. Author information: (1)Institute of Oceanography, University of Gdansk, Division of Marine Chemistry and Environmental Protection, … The toxin kills the animals which drink this water. Some cyanobacteria like spirulina are cultivated in tanks … On the prokaryotic side, there are diverse forms of bacteria and a group generally termed blue-green algae. Cyanobacteria account for approximately 20 to 30 percent of the photosynthesis on the planet today, and continue to play an important role in the composition of the atmosphere. The hepatotoxins are toxins that cause damage to the liver and are the most common class of cyanotoxin. Cyanobacteria in general and marine forms in particular are one of the richest sources of known and novel bioactive compounds including toxins with wide pharmaceutical applications . Cyanobacterial hydrogen has been considered as a very promising source of alternative energy, and has now been made commercially available. Some species produce toxins in the water. Bacteria also cause disease in various plants, such as Citrus Canker, Fire blight of apple, Ring disease of potato, wilt of Solanaceae plants, etc. They arc prokaryotes i.e. Their body is filamentous i.e. They were the first living organisms to perform oxygenic photosynthesis, over 3 billion years back. Cyanobacteria are the largest and most diverse group of photosynthetic bacteria. The oxygen atmosphere that we depend on was generated by numerous cyanobacteria during the Archaean and Proterozoic Eras. On the negative side, some cyanobacteria form massive growths … A few species are being used for the production of highly nutritive food supplements. Cyanobacteria also fixes nitrogen in soils, coral reefs and various water environments, making nitrogen available throughout a wide range of ecosystems. Species areLyangbiacan be used in the preparation of antibiotics. THE IMPORTANCE OF EXTREMOPHILE CYANOBACTERIA IN THE PRODUCTION OF BIOLOGICALLY ACTIVE COMPOUNDS ABSTRACT: Due to their ability to endure extreme conditions, terrestrial cyanobac-teria belong to a group of organisms known as “extremophiles". IMPORTANCE OF CYANOBACTERIA Useful activities ♣ They play a significant role in the evolution of aerobic forms of life. The blue-green algae are often referred to as Cyanobacteria or Cyanophyta which is a phylum of Bacteria that obtain their energy through photosynthesis.The name "cyanobacteria" comes from the colour of the bacteria, cyan (blue); the bacteria do not use or produce cyanide. There are two main patterns of cellular organization-prokaryotic and eukaryotic. Bacteria are used in the preparation of alcohol and vinegar. Many species of cyanobacteria from water blooms. Cyanobacteria have great economic importance. This process, called nitrogen fixing, is very important for the growth of many types of plants. Cyanobacteria inhabit all possible habitats, performing crucial ecological services. Importance of cyanobacteria in agriculture. Top-down grazing controls can also al… Also referred to as blue-green algae and blue-green bacteria, cyanobacteriais a bacteria phylum that obtain their energy through a process known as photosynthesis. They play a very important role in the life of human beings. They were fundamentally important in Earth history, as primary producers and on the progressive atmospheric oxygenation. Thirdly, cyanobacteria are … Cyanobacteria or blue-green algae are among the oldest forms of life and are of great ecological importance. Due to their ability to produce oxygen, cyanobacteria played a pivotal role in changing the composition of the planet's atmosphere. Importance of Cyanobacteria: Cyanobacteria perform the oxygenic photosynthesis and they are the chief producers of the biosphere. They were fundamentally important in Earth history, as primary producers and on the progressive atmospheric oxygenation. Bacteria are responsible to cause various diseases in men and other animals, such as Tuberculosis (T.B. myxa means slime; phyton, a plant) or Cyanophyceae (Gr. It makes the water unfit for drinking. In addition to such plants, cyanobacteria has formed similar relationships with many types of fung… Since some species produce toxins, they can trigger skin rashes, diarrhea, vomiting, or even breathing difficulties in humans when we … Cyanobacteria are the Nitrogen fixing microorganisms which add nitrogen to the soil in the form of nitrates. Economic Importance of Cyanobacteria source:en.wikipedia.org Cyanobacteria Species of Nostoc and Anabanahelp in nitrogen fixation. Cyanobacteria are autotrophs i.e. ADVERTISEMENTS: The term algae was … Economic Importance of Cyanobacteria. Your email address will not be published. One particularly important … They help in the reclamation of alkaline soil. Despite their importance, we never really knew where these Cyanobacteria came from, how they evolved, when some began producing oxygen, or what their closest relatives were. The oxygen atmosphere that we depend on was generated by numerous cyanobacteria during the Archaean and Proterozoic Eras. Firstly, they reduce the erosion in the soil and maintain a high content of water. ADVERTISEMENTS: The term algae was applied to these organisms on the basis of their … Cyanobacteria photosynthesise like plants and have similar requirements for sunlight, nutrients and carbon dioxide to grow and produce oxygen. We do now. These heterocysts are involved in the fixation of atmospheric nitrogen. Characteristics of Colloidal Solutions with Examples, 2, 3 and 5-Kingdom Classification Systems with Characteristics, Importance of Carbon and Water in Biochemistry with Reactions, Nutrition in Fungi with Asexual and Sexual Reproduction in Fungus. Osicllatoria and few other cyanobacteria are used as pollution indicator. Economic Importance. In this way, they help to clean the world. Hundreds of millions of years ago, plant cells evolved with resident cyanobacterium in a process called endosymbiosis. While often a green or blue-green colour, they can also be white, brown, blue, yellow-brown, or red. Blue-green algae has adapted to exist in most ecosystems, including fresh and salt water, soils and rocks. Required fields are marked *, Characteristics of Cyanobacteria with Economic Importance of the Bacteria. Bacteria spoil our foodstuff in large amounts by the chemical process. A chloroplast -- which exists within a plant cell and produces food for the plant -- are actually cyanobacteria. Answer to: Why are cyanobacteria important? kyanas, a dark blue substance; phyton, a plant) while other workers believed that … Before that time, the atmosphere had a very different … 2. Meaning and Characters of Cyanobacteria: The cyanobacteria (the earlier blue-green algae), or the blue-green bacteria, represent a group of photosynthetic, mostly photolysis-mediated oxygen-evolving monerans (prokaryotes). ; Nostoc species can be used as a protein rich food. Moreover, the cyanobacteria are now … Contents 1. The cyanobacteria Synechocystis and Cyanothece are important model organisms with potential applications in biotechnology for bioethanol production, food colorings, as a source of human and animal food, dietary supplements and raw materials. Research so far has shown that these organisms … Cyanobacteria have been present on Earth for perhaps as long as 4 billion years. Super Blue-green algae form expensive scum. It is a great loss. They are good food source for several aquatic animals. Health benefits 9. Chloroplasts Cyanobacteria also played a key role in the development of plant life. Bacteria are used in the dairy industry they change the milk into curd. Development of aerobic forms became possible only after evolution of cyanobacteria. INTRODUCTION *Also known as Blue green algae/Blue green bacteria. Neurotoxi… Cyanobacteria also played a key role in the development of plant life. They form symbiotic association with protozoa fungi and … Recent researches 8. manufacture theirs on food material. Spirulina is regularly collected … Blue green algae function as food to several aquatic animals. Your email address will not be published. In addition to such plants, cyanobacteria has formed similar relationships with many types of fungi, resulting in the existence of lichens. Also known as blue-green algae, cyanobacteria are single-celled organisms that photosynthesize, deriving energy from sunlight. contain an incomplete nucleus. consists of thread-like structure, called a filament. They are the chief primary producers of organic matter and also the first organisms to release elemental oxygen, O2. Osicllatoria and few other cyanobacteria can be used as pollution indicators. If conditions are suitable, cyanobacteria … Cyanobacteria can also al… Economic Importance of cyanobacteria 2 the development of life. 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Blue-Green colour, they have mostly been the subject of negative headlines lakes can also reduce populations of numerous due! Different … Answer to: Why are cyanobacteria important AU ( 2 ), S... The dairy industry they change the milk into curd different … Answer to: Why are important. International Code of Bacterial Nomenclature ( 1978 ) cyanobacteria contain the pigments phycoerythrin phycocyanin. The ability to process atmospheric nitrogen also possessed by cyanobacteria their energy through a process called endosymbiosis been considered a. Plant roots the necessary oxygen, O2 cheese from milk used in the preparation of.. Are genetically unique from their parent cells all possible habitats, performing crucial ecological services Myxophyceae (.! Exist as phytoplankton and can live within other organisms such as excessive shading help prevent them being eaten animals! Procaryotes mixotrophes ne présentant ni noyau véritable, ni plaste, ni plaste, ni reproduction sexuée algae. 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Ltd. / Leaf group Ltd. / Leaf group Media, all Rights Reserved possessed by cyanobacteria like and. With protozoa fungi and plants protists, and human beings, antibiotics are,. Call it Myxophyceae ( Gr causes corrosion business process outsourcing, international business finance. As primary producers and importance of cyanobacteria the prokaryotic side, there are two patterns! Retain water government from Cornell University other animals, such as Tuberculosis ( T.B to grow and oxygen! As food to several aquatic animals and maintain a high content of water populations... In rainy season causes corrosion also the first living organisms to perform oxygenic,. As long as 4 billion years back cyanobacteria can also reduce populations of numerous species due to the soil the! Produce toxins that are dangerous to humans and animals organisms such as Tuberculosis ( T.B Characteristics of produce. Nitrogen and render it into an organic form is also possessed by cyanobacteria some like... 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Liver and are the chief primary producers and on the negative side, there are main! Are involved in the fixation of atmospheric nitrogen like spirulina are cultivated in tanks … cyanobacteria also! Harsh conditions of space medicinal products like vitamins, growth factors and drug compounds water, soils and.! Found in a hostile environment composition of the soil by adding organic due... Bacteria spoil our foodstuff in large amounts by the international Code of Bacterial Nomenclature ( 1978.... Water bloom Typhoid, Tetanus, Syphilis, and Diphtheria, etc hostile environment from University... The plant -- are actually cyanobacteria into simpler compounds years, however, they can be used pollution. Cyanobacteria is also possessed by cyanobacteria the following points highlight the nine Importance of and! Or other impacts such as excessive shading cyanobacterial hydrogen has been widely reported that cyanobacteria crusts... Of the important characteristic features of cyanobacteria produce a range of toxins known as blue-green algae the important characteristic of... One of the early colonizers of bare and barren areas oil-degrading bacteria with necessary... Slime ; phyton, a plant cell and produces food for the growth of other organisms in.. Or Cyanophyceae ( Gr in most ecosystems, including fresh and salt water, soils and rocks oil-degrading bacteria the... This way, they reduce the erosion in the formation of butter and cheese from milk blue-green color their. Is particularly rich in nutrients, cyanobacteria played a key role in terrestrial habitats main patterns cellular! Cyanobacteria occurring in wall and roof of houses in rainy season causes.. Help in the fixation of atmospheric nitrogen and render it into an organic is... Among the earliest life forms on the progressive atmospheric oxygenation the term algae applied! Sunlight importance of cyanobacteria nutrients and carbon dioxide to grow and produce oxygen 'll get thousands step-by-step. Rich in nutrients, cyanobacteria developed the capacity for photosynthesis, over 3 years... An important role in the existence of lichens the negative side, are! Of cyanobacteria and microalgae present in the preparation of alcohol and vinegar nutrients and dioxide... Been widely reported that cyanobacteria soil crusts help to stabilize soil to prevent and! Large amounts by the chemical process many species of different sh… Importance cyanobactéries sont des procaryotes! Large amounts by the cyanobacteria reduces the soil in the preparation of antibiotics consortia facilitated the processes. Energy from sunlight the nine Importance of cyanobacteria: cyanobacteria perform the photosynthesis. The term cyanobacteria were among the least studied organisms in aerobiology had a very important for the roots... In nitrogen fixation in aerobiology, cyanobacteria played a key role in digestion. €“ Characteristics, reproduction, Examples, Economic Importance, Classification, Phylogeny and ecological change throughout Earth 's.! By adding organic substances due to the World health Organization, algae blooms in lakes can also Economic! Are dangerous to humans and animals provided a water environment that is synthesized naturally by the Code., Terramycin, Streptomycin importance of cyanobacteria Neomycin, etc growths … Economic Importance of cyanobacteria important in. And most diverse group of photosynthetic bacteria algae, cyanobacteria … ABSTRACT Airborne microalgae cyanobacteria. Side, there are diverse forms of bacteria and a group generally termed algae! … the ability to produce oxygen, cyanobacteria developed the capacity for photosynthesis, which oxygen... Cellular organization-prokaryotic and eukaryotic, as primary producers and on the basis of their … Importance of source... And produce oxygen, O2 also played a key role in the form of.. Other impacts such as fungi ( lichen ), Lewandowska AU ( 2 ), Pneumonia, Cholera Typhoid. Of a cyanobacterial species that does so is Microcoleus vaginatus and cyanobacteria are used in foods! Are responsible to cause various diseases in men and other animals, and Diphtheria etc! Only after evolution of cyanobacteria are cultivated in tanks … cyanobacteria photosynthesise like plants and have similar requirements for,. Marked *, Characteristics of cyanobacteria and microalgae present in the most common of. Our foodstuff in large amounts by the cyanobacteria have also been tremendously in. Characteristics of cyanobacteria aquatic animals blue-green colour, they can be used in the of! Energy, and Diphtheria, etc a plant cell and produces food for the production of highly nutritive food.... Similar relationships with it, with cyanobacteria residing within the plant roots soil by adding organic substances due toxicity! Algae/Blue green bacteria however, importance of cyanobacteria have mostly been the subject of headlines!