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What are Algae: Biological and economic importance of algae; Characteristics of algae….?

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What are Algae: Biological and economic importance of algae; Characteristics of algae….?

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WHAT ARE ALGAE?Characteristics of Algae,The Biological Importance of Algae,
 Primary producers
 Algae as food
 Algae as fodder for cattle
 Algae as bio-fertilizers
 Algae in pisi culture
 Role in soil erosion
ECONOMIC IMPORTANCE OF ALGAE
 Algae in Industry
 Antibiotics
 Sewage disposal
 Research Material
 In space ship
 Algae in medicine
 Algae in fertilizers

WHAT ARE ALGAE?Characteristics of Algae,The Biological Importance of Algae,
 Primary producers
 Algae as food
 Algae as fodder for cattle
 Algae as bio-fertilizers
 Algae in pisi culture
 Role in soil erosion
ECONOMIC IMPORTANCE OF ALGAE
 Algae in Industry
 Antibiotics
 Sewage disposal
 Research Material
 In space ship
 Algae in medicine
 Algae in fertilizers

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What are Algae: Biological and economic importance of algae; Characteristics of algae….?

  1. 1. What are Algae: Biological and economic importance of algae; Characteristics of algae….? By; Mehwish Manzoor
  2. 2. WHAT ARE ALGAE? The term "algae" covers many differentorganisms capable of producing oxygen through photosynthesis. Algae exist in environments ranging from oceans, rivers, and lakes to ponds,brackish waters, and even snow. Algae are usually green, but they can be found in a variety of differentcolours. For instance, algae living in snow contain carotenoid pigments in addition to chlorophyll, hence giving the surrounding snow a distinctive red hue. “Alga is a term that describes a large and incredibly diverse group of eukaryotic, photosynthetic lifeforms. These organisms do not share a common ancestor and hence, are not related to each other (polyphyletic).”
  3. 3. Most algae require a moist or watery environment; hence, they are ubiquitous near or inside water bodies.Anatomically, they are similar to another major group of photosynthetic organisms – the land plants. However, that is where the differences end as algae lack many structural components typically presentin plants, such as true stems,shoots,and leaves. Furthermore, they also do not have vascular tissues to circulate essential nutrients and water throughout their body. Multicellular examples of algae include the giant kelp and brown algae. Unicellular examples include diatoms, Euglenophyta, and Dinoflagellates Characteristics of Algae Specific generalcharacteristics of algae are commonto plants as well as animals. For instance, algae can photosynthesize like plants, and they possess specialized structures and cell-organelles, like centrioles and flagella, found only in animals. Listed below are some of the general characteristics of algae.  Algae are photosynthetic organisms  Algae can be either unicellular or multicellular organisms  Algae lack a well-defined body, so, structures like roots, stems or leaves are absent  Algaes are found where there is adequate moisture.
  4. 4.  Reproductionin algae occurs in both asexual and sexual forms. Asexual reproductionoccurs by spore formation.  Algae are free-living, although some can form a symbiotic relationship with other organisms.  The majority of algae live in aquatic habitats.  Algae are also able to survive on land. Some unexpected places where they grow are tree trunks, animal fur, snow banks, hot springs (according to "Algae") and in soil, including desert crusts The Biological Importance of Algae  Primary producers  Algae as food  Algae as fodder for cattle  Algae as bio-fertilizers  Algae in pisi culture  Role in soil erosion PRIMARY PRODUCERS Algae are primary producersby using inorganic ions, CO2, water and solar energy the complexorganic molecules are produced.Oxygen is released in this process. Algae, cyanobacteria and plants indirectly produce all food and all oxygen for all living organisms on our planet.
  5. 5. ALGAE AS FOOD Algae are commonall over the Earth. Algae are used in the food industry as food supplements and an addition to functional food.Algae are also added to meat products,such as pasty, steaks, frankfurters and sausages, as well as to fish, fish products,and oils, to improve their quality. Cereal- based products,such as pasta, flour and bread, are another group of products enriched with algae. Fermented products containing algae are, most of all, dairy products,such as cheese,cream, milk deserts,yoghurt, cottage cheese,and processed cheese. ALGAE AS FOODER FOR CATTLE  Kelps (brown algae) are used as fodderforcattle & chopped for sheep and chickens in Great Briten.  Macrocysts speciesare food source of vitamins A & E  Rhodymenia is used for Cattle Food in France.
  6. 6. ALGAE AS BIO-FERTILIZERS An Algae Biofertilizer is a natural, organicand renewable energy source. They help retain essential nutrients and water in the soil which is required for the propergrowth of the plants. ALGAE IN PISI CULTURE Various species of macroalgae and microalgae have been incorporated into fish feed formulations to assess their nutritional value, and many have been shown to be beneficial: Chlorella or Scenedesmus fed to Tilapia, Chlorella fed to Korean rockfish. It has also been shown that larvae of some fishes benefit greatly by direct ingestion of microalgae. ROLE IN SOIL EROSION The impact of soil erosion can be very significant not only in reducing soil productivity but also in deteriorating water quality. Sedimentresulting from soil erosion is a major water quality pollutant in Iowa’s surface water
  7. 7. bodies.Increased levels ofnitrogen (N) and phosphorus (P) in surface waters are also leading contributors to reduced water quality. ECONOMIC IMPORTANCE OF ALGAE  Algae in Industry  Antibiotics  Sewagedisposal  Research Material  In spaceship  Algae in medicine  Algae in fertilizers ALGAE IN INDUSTRY The focus of today’s algae industry is on bringing the advances of science and technologyfor the productionof algae products into the marketplace. ANTIBIOTICS Algal Scientific is extracting beta glucan – a chain of simple sugars – from algae foruse as an immune system supportand alternative to antibiotics.CEO Geoff Horst says that the substance works by
  8. 8. supporting the immune system via stimulating the growth of white blood cells. SEWAGE DISPOSAL In wastewater treatment systems designedto remove nutrients, mainly dissolved nitrogen and phosphorus,is becoming an important step of treatment.Discharge of these nutrients into sensitive water bodies leads to eutrophication by stimulating the growth of unwanted plants such as algae and aquatic macrophytes. RESEARCH MATERIAL Algal Research is an international phycology journal covering all areas of emerging technologies in algae biology, biomass production, cultivation, harvesting, extraction, bioproducts, biorefinery, engineering, and econometrics. Algae is defined to include cyanobacteria, microalgae, macroalgae, and protists... ALGAE IN MEDICINE Algae is used as one of important medical source due to its antioxidant, anticancer, antiviral properties.. Therapeutic properties of algae is used for promotionof health . Edible algae are recognized as complete foods which provides correctbalance of proteins, carbohydrates, vitamins, and minerals.

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