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Blue green algae, also known as cyanobacteria, are a group of photosynthetic bacteria that commonly grow in warm lakes, ponds, and slow-moving streams containing nutrients like phosphorus or nitrogen. Spirulina, a type of blue green algae, is commonly found in waterlogged rice fields, ponds, lakes, and wastewater channels with alkaline and saline soil. Spirulina is commercially cultivated using a system of cement raceways with paddle wheel agitation at a depth of 15-20 cm and a light intensity of 20-30k flux at a pH of 9-11 while being provided nutrients. Spirulina has numerous applications as a health food, nutritional supplement, and therapeutic
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1) Algal culture involves growing algae on a large scale and has many applications including use as food, dyes, fertilizers, fuels, and more.
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This document discusses mycorrhizae, which are symbiotic associations between fungi and plant roots. It describes the different types of mycorrhizae including endomycorrhizae, ectomycorrhizae, and ectendomycorrhizae. Applications of mycorrhizae include increasing nutrient uptake, plant diversity, and resistance to diseases and drought. The document also discusses methods for isolating and mass producing mycorrhizal fungi for use as biofertilizers to improve soil health and crop yields.
PHOSPHATE SOLUBILIZERS by Pranzly.ppt
PHOSPHATE SOLUBILIZERS
INTRODUCTION
Phosphate SOLUBILIZERS are a group of beneficial micro-organisms capable of breaking down of organic and inorganic insoluble phosphorous compounds to soluble P form that can easily be assimilated by plants.
Phosphorous (P) is a major growth-limiting nutrient, Plants acquire phosphorus from soil solution as phosphate anion.
TYPES
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ISOLATION
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INOCULANT APPLICATION
ROLE OF PHOSPHATE SOLUBILIZERS
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Mycorrhiza Biofertilizer is also known as VAM (Myco = Fungal + rrhiza = roots) adheres to plants rhizoids leading to development of hyphae. Hyphae boost development and spreading of white root in to soil leading to significant increase in rhizosphere. These hyphae further penetrate and form arbuscules within the root cortical. VAM fungi form a special symbiotic relationship with roots of plant that can enhance growth and survivability of colonized plants. Mycorrhiza Biofertilizer is very useful in organic farming as well as normal commercial farming
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An algal bloom is a rapid increase in algae population in freshwater or marine systems. They are caused by excess nutrients like nitrogen and phosphorus from sources like fertilizer and sewage. There are three main types of algal blooms: freshwater, marine, and harmful. Harmful algal blooms produce toxins that can poison humans and kill marine life. Algal blooms can be controlled by reducing nutrient loads in wastewater, using optimal fertilizer application, sewage treatment, and technologies like ultrasound that limit algal growth. While algal blooms provide some benefits like oxygen production, excessive blooms can harm ecosystems.
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Algae play important roles in several industries and aspects of human life. They are used as fertilizers in agriculture due to their ability to fix nitrogen in soil. Some algae like Spirogyra and Oedogonium are used as human food. Algae also serve as food sources for fish, making them important for aquaculture. Several algal products like agar, carrageenan, and algin are used in food, pharmaceutical, and other industries. Algae indicators can identify industrial waste pollutants. However, some algae are toxic or cause harmful algal blooms that pollute water sources.
Green gold in Brittany’s blue economy
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Role of microbes in soil and water quality management in aquaculture
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- 2. BLUE GREEN ALGAE (BGA) Introduction- blue green algae also known as cyanobacteria are a group of photosynthetic bacteria. Blue green algae generally grow in lakes, ponds, and slow-moving streams when the water is warm with nutrients like phosphorus or nitrogen. Many different species of BGA occur in Wisconsin waters, but the most commonly detected include Anabaena sp. Microcystis sp.
- 3. Systemic position Spirulina is a blue green algae. It is recorded from water logged rice fields, ponds, lakes, wastewater channels with alkaline &saline soil The algal multiplication occurs by fragmentation Spirulina has been known for its protein 7 betacarotine contents apart of a host of vitamins ,minerals ,pigments in its make-uplt stands out among the algal forms with a protein content
- 4. Culture The commercial design of spirulina culture system comprises a network 0f cement raceways with paddle wheel agitation. Culture medium depth 15-20 c ,light intensity 20-30k flux pH 9-11 provided with nutrients.
- 7. Application of blue green Algae It is a health food and nutritional supplement for the human being has unlimited scope in the future. BGA has been shown beatherapeutant with regard to several maladies like night blinders, anemia, glaucomia cholesterol accumulation. Pigmentation of ornamental fishes and prone larvae has commercial significance.
- 8. Its antioxidant properties have been attributed with cancer prevention possibilities. Spirulina with regard to human/ animal nutrition and therapy command a high export value as also import substitution.
- 10. Conclusion Spirulina culture, in fact is being used as a tool to reduce pollution from wastewater like domestic sewage. Achieving the twin objectives of pollution reduction and nutrient harvest in the form of a high quality proteins.
- 11. Thank you