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Free learning from The Open University http://www.open.edu/openlearn/science-maths-technology/science/biology --- This video examines just how critical micro...
visit http://www.makemegenius.com for Free Science videos for kids. Do you know that Plants cannot absorb nitrogen directly from the atmosphere.This nitrogen...
Welcome to Moof University! My name is Mahfoud, and I recently graduated from UC Riverside. I've made these videos to help students with introductory biochemistry. The videos are loosely structured around what I learned from the elementary biochemistry course I took on campus (BCH 100) at UC Riverside. I hope, however, that any and all individuals who want to learn basic biochemistry find these videos helpful. In addition, if you are a student at UC Riverside taking BCH 100 (or a student at a school near UC Riverside), and you find these videos helpful, but still want more help, please feel free to email me at MoofUniversity@gmail.com if you are interested in my tutoring services. Google Helpouts Listing Link: https://helpouts.google.com/107589021636225592781/ls/bfe538c943837503 Happy learning, folks!
For more information, log on to- http://shomusbiology.weebly.com/ Download the study materials here- http://shomusbiology.weebly.com/bio-materials.html Nitro...
Hank describes the desperate need many organisms have for nutrients (specifically nitrogen and phosphorus) and how they go about getting them via the nitroge...
NITROGEN CYCLE:Nitrogen is the important essential element for all living organisms by the synthesis of Amino acids, proteins, Enzymesetc.What happens if there is no Nitrogen?. Root systems and plant growth are stunted.Older leaves turn yellow.Decrease in crop production. Soil microorganisms life become dangerous.In Atmosphere its concentration is 78 percentage.The circulation or cyclic movement of Nitrogen from the atmosphere physical or abiotic component to soilBiotic componentand back into the atmosphere is known as.Nitrogen cycle involves various steps:1.Nitrogen fixation. 2.Nitrogen assimilation 3. Ammonification 4. Nitrification 5. Denitrification. Plants cannot utilize Atmospheric nitrogen so it should be converted into utilizable form such as Ammonia.1.Nitrogenfixation:This is the first step of Nitrogen fixation.Conversion of atmospheric nitrogen into Ammonia for living organismsis known as Nitrogen fixation.This process is carried out by leguminous plants such as ground nut; even some bacteriacan fix atmospheric nitrogen.Examples of bacteria --Azotobacter Clostridium, Rhizobium, Nostoc and Anabaena2.NitrogenAssimilation:The process of absorbing Nitrates and Ammonia into Organic nitrogen is known as Nitrogen Assimilation.This organic nitrogen is transferred into animal's body when plants are eaten by animals. 3. Ammonification:The process of converting organic nitrogen into Ammonia when Animals die is known as Ammonification.It is also known asMineralization.This process was carried out by some Saprophytes like Fungi andBacteria.Ammonia is also produced from volcanic eruptions and excretory products of Animals.4.Nitrification:The Bacteria which is involved in nitrification is known as Nitrifying bacteria.Ammonia is first converted to nitrites.Examples: Nitrosomonas,Nitrococcus.Nitrites are converted to nitratesExamples:Nitrobacter.5.Denitrification:Nitrates are converted into molecular nitrogen through Nitric oxide is known as Denitrification, in order to maintain the equilibrium of nitrogen in the atmosphere.Bacteria which are involved in denitrificationare known as denitrifying bacteria.Examples: Thiobacillusdenitrificans,Pseuodomonasdenitrificans and Micrococcusdenitrificans.Problems with increase of Nitrogen:Acid rain formation. Acidification of soil and lakes. Increase in death of plants. 7 Active Technology Solutions Pvt.Ltd. is an educational 3D digital content provider for K-12. We also customize the content as per your requirement for companies platform providers colleges etc . 7 Active driving force "The Joy of Happy Learning" -- is what makes difference from other digital content providers. We consider Student needs, Lecturer needs and College needs in designing the 3D & 2D Animated Video Lectures. We are carrying a huge 3D Digital Library ready to use. For more information: http://www.7active.in Contact: 040-64501777 / 65864777 9700061777
This video describes the Biological Nitrogen Fixation. Nitrogen fixation is a process by which nitrogen (N2) in the atmosphere is converted into ammonia (NH3).
Nitrogen Fixation is necessary in growing healthy plants. Find out how ABM's sustainable solutions assist the plant with nitrogen fixation. www.abm1st.com Bi...
Reveals how the research of agriculturalscientists such as George Washington Carver helped discover the importance of nitrogen fixing plants such as soybeans...
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http://tinyurl.com/nqh5fzz - Nitrogen Cycle - Nitrogen Fixation, Nitrification, Denitrification | Dynamic Ecosystem Related Videos: Nitrogen Cycle - Nitrogen Fixation, Nitrification, Denitrification | Dynamic Ecosystem http://www.youtube.com/watch?v=_9shh_z6w3Y
This is a science video about Nitrogen Cycle for Grade 9-10 students.
In this demonstration, UF/IFAS Professor Dr. Lynn Sollenberger discusses legumes and nitrogen fixation.
Dr. Undergrad presents a basic introduction to the Nitrogen Fixation Cycle. In this cycle nitrogen is fixated to become more biologically available to the or...
Sugar snap peas are one of our favorite late spring and early summer garden treats. They're so sweet and tender when picked at just the right time, and their taste and freshness can't be beat. Not only do they taste great, but, like other legumes, sugar snap peas fix nitrogen in the soil. Through a symbiotic relationship with beneficial soil bacteria, they take nitrogen from the atmosphere and store it in nodules on their roots. This makes them a great companion plant to interplant with nitrogen loving crops. They can also be planted in succession with other crops that grow later in the season. One Yard Revolution is all about growing a lot of food on a little land using sustainable organic methods, while keeping costs and labor at a minimum. Emphasis is placed on improving soil quality with compost, mulch, and compost tea. No store-bought fertilizers, soil amendments, pesticides, compost activators, etc. are used. Channel Page: http://www.youtube.com/user/OneYardRevolution Join me on Facebook: https://www.facebook.com/oneyardrevolution Featured Videos: Soil Fertility Playlist: http://www.youtube.com/watch?v=e0v8SWe2uDw&list;=PLApXYvbprElwCOe5gdtcOMiEMGRpUBb4e Fall And Winter Gardening Playlist: https://www.youtube.com/watch?v=pUxbL_cwRV0&list;=SPApXYvbprElwtRHz0l63gp6ZsoM-BvdmM&index;=1 Biochar Playlist: http://www.youtube.com/watch?v=jkGWfRu3Y84&list;=SPApXYvbprElwrArh0ffNKWU4pFdRSSjH4 Creating a Small Suburban Edible Food Forest: http://www.youtube.com/watch?v=SQw8ul70gG0&list;=PLApXYvbprElzsN2bvBSzxXMOYdJ8eEYRn&index;=2
More about Nitrogen Fixation and Exploring the genetic design space in this Contemporary Biochemistry lecture given by Christopher Voigt. I really hope this ...
This bacteria describes about symbiotic nitrogen fixation. Several types of symbiotic biological nitrogen fixing associations are known. The most prominent a...
Biology Mineral Nutrition part 10 (Symbiotic Biological Nitrogen Fixation) CBSE class 11 XI
Leghemoglobin carries oxygen to the bacteria found within the plant nodules. The plant feeds the bacteria in order to carry out biological nitrogen fixation....
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The phytoplankton is composed of various microalgae. These tiny plants produce organic compounds by the process of photosynthesis and form therefore the basis of the food chain in the Benguela ecosystem. A specific fraction of these primary producers are cyanobacteria, also called “blue-green algae”. In contrast to the ordinary algae, some cyanobacteria are able to convert the atmospheric nitrogen into bioavailable nitrogen compounds – therefore they are called “nitrogen fixers”. For understanding the Benguela ecosystem it is decisive to figure out where and to what extend these nitrogen fixers occur. The growth potential of nitrogen fixers are investigated on board in special experiments. In order to measure the process of nitrogen fixation, the samples are supplied with a rare nitrogen isotope 15N. As the cyanobacteria use also this unusual isotope together with the common 14N, the incorporation of the 15N gives information on the rate of nitrogen fixation. Applying these measurements in a station grid, they give an overview on the spatial patterns and the general magnitude of nitrogen fixation.
Studying the genes involved in nodulation and nitrogen-fixation mechanisms by Rhizobium bacteria.
National History Day Junior Division Individual Documentary State Qualifier Shanna Martin *ALL VIDEO SOURCES HAVE BEEN CITED IN BIBLIOGRAPHY*
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Captured live at the 2012 Organic Seed Growers Conference, Jude Maul, USDA-ARS, discusses which genotypes of hairy vetch are better at fixing nitrogen than o...
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Physiological Characteristics of Nitrogen-fixing Tree Species in La Mesa Watershed and Mt. Makiling, Philippines Mt. Makiling, Philippines Dr. Marilyn S. Com...
http://ibioseminar.hhmi.org/lectures/bio-mechanisms/sharon-long.html Legume plants form specialized root nodules to host "rhizobia", nitrogen-fixing bacteria...
http://ibioseminar.hhmi.org/lectures/bio-mechanisms/sharon-long.html Legume plants form specialized root nodules to host "rhizobia", nitrogen-fixing bacteria...
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This webinar from 2010, presented by Julie Grossman, North Carolina State University, is designed to deepen your understanding of how legume cover crops, thr...
Professor Peter M. Gresshoff QAAFI Science Seminar -- 27 May 2014 http://www.uq.edu.au/agriculture/petergresshoff Most legume plants, such as soybean, are ca...
Presentation given at the Tri-County Ruminant Livestock Production Meeting in Southside Virginia on 12-10-14. Table of Contents: 01:29 - 02:11 - Sustainable Forage Systems 05:47 - Fall Calving on Hay Ration 06:28 - Tall Fescue Hay @ 3 ton/A 09:18 - SPA Record Summary 11:13 - 12:27 - Principle 1: Set a Sustainable Stocking Rate 12:40 - 14:04 - Getting Stocking Rate Right 15:56 - Principle 2: Build and Maintain Soil Fertility 16:21 - Soil Defined 16:54 - 17:51 - Soil Test Pastures 19:04 - Liebig’s Barrel 21:03 - 22:22 - Soil Acidity and Liming 23:25 - Soil pH and Nutrient Availability 23:26 - Soil Acidity and Liming 23:37 - Soil pH and Nutrient Availability 24:39 - 26:04 - Grazing Redistribute Nutrients 27:56 - Nutrient Removed by Hay 29:42 - Value of Nutrients in Hay 30:57 - Principle 3: Manage for Legumes 31:21 - Legumes and Grazing Systems 33:20 - Nitrogen Fixation 35:15 - Managing for Legumes 37:07 - Principle 4: Rotationally Stock Pastures 37:30 - Subdivide Pastures 39:51 - Subdivide Pastures 40:34 - Subdivide Pastures 41:13 - Subdivide Pastures 42:03 - Defoliation 43:22 - Location of Carbohydrate Reserves 46:07 - Carbohydrate Cycling in Alfalfa 46:19 - Carbohydrate and Leaf Area Interactions 47:47 - What is going on Underground? 48:40 - Botanical Composition 48:43 - Principle 5: Stockpile Tall Fescue for Winter Grazing 49:06 - Tall Fescue 49:14 - Stockpiling Cool-Season Grasses 49:41 - Stockpiling Cool-Season Grasses 49:53 - 50:20 - Nitrogen Rate and Source 50:21 - Nitrogen Source Effects on CP 50:22 - Nitrogen Rate and Source 50:36 - Nitrogen Source Effects on CP 50:40 - Nitrogen Source Effects on TDN 52:30 - What does it cost? 52:45 - Putting Ideas into Motion 53:19 - Questions?
Nitrogen Fixation: Exploring the genetic design space 12.09.2013.
About the Webinar Michigan is the number one producer of organic dry beans in the nation. This webinar will share what we have learned at Michigan State Univ...
The nitrogen cycle is the process by which nitrogen is converted between its various chemical forms. This transformation can be carried out through both biol...
VVH-TV News Special Organic Farming: Can It Feed Us? Part 1 Karl Grossman Chief Investigative Reporter examines Organic Farming on Eastern Long Island. What ...
VVH-TV News Special Organic Farming: Can It Feed Us? Part 2 Karl Grossman Chief Investigative Reporter examines Organic Farming on Eastern Long Island. What ...
The Culture Collection of Algae at the University of Texas at Austin, herein designated as "UTEX", has been in continuous operation since 1953. It was established by Richard C. Starr at Indiana University and was moved to its present site in 1976. Dr. Starr was the Director of UTEX from its inception until his untimely death in February of 1998, at which time Jerry J. Brand became the Director. The principal resource of UTEX is its extensive collection of living algae. Nearly 2,800 different strains of algae, representing approximately 200 different genera, are provided to the public at modest charge. The Collection maintains an especially strong representation of freshwater and edaphic green algae and cyanobacteria, but includes representatives of most major algal taxa, including many marine macrophytic green and red algae. All strains in the Collection were obtained as isolates from natural sources, and no genetically altered strains are maintained. Approximately half of UTEX strains are axenic and all cultures are unialgal. The Culture Collection of Algae is administrated as an Organized Research Unit of the University of Texas in Austin through the College of Natural Sciences. Its principal administrative officer is a Director who is responsible for establishing and enforcing policies regarding the management of UTEX. The resources of UTEX are managed through a Curator. The primary duties of UTEX staff are transferring cultures to fresh media on regular schedules, shipping cultures to users, keeping records related to sales and inventory, preparing media, and managing glassware. The principal function of UTEX is the maintenance of its diverse stock of living algae, in order to make these algal strains available to a user community worldwide at modest cost. Cultures in the Collection are used especially for research, but also for biotechnology development, teaching, water quality assessment, food for aquatic animals, and a variety of other purposes. UTEX does not impose restrictions regarding the use of cultures that are purchased and does not assume any responsibility for cultures that are sold and sent away from the facility. UTEX is a nonprofit organization. Principal financial support is obtained through the National Science Foundation of the U.S.A. Additional support comes from the College of Natural Sciences of The University of Texas at Austin and through the sale of cultures to the user community. The Culture Collection of Algae at the University of Texas at Austin, herein designated as "UTEX", has been in continuous operation since 1953. It was established by Richard C. Starr at Indiana University and was moved to its present site in 1976. Dr. Starr was the Director of UTEX from its inception until his untimely death in February of 1998, at which time Jerry J. Brand became the Director. A major research interest of Jerry Brand is the mechanism of freezing damage in algal cells and processes that protect them from chilling and freezing damage. Studies are directed toward the development of improved processes for cryopreservation (freezing and storing for an indefinitely long period of time at liquid nitrogen temperature) of living algae. These studies have led to the development of protocols to that have facilitated the successful cryopreservation of nearly 2/3 of the strains in the Culture Collection of Algae at the University of Texas. Jerry Brand studies metabolic processes in cyanobacteria that influence their physiological characteristics and ecological distribution. Research in this laboratory is directed toward characterization of a recently discovered cyanobacterium that produces multicellular "nodules" and is capable of dinitrogen fixation in the absence of heterocysts. Additional work is directed toward nitrogen-fixing cyanobacteria in microbial mats and methods that selectively inactivate or insert genes at specific sites in cyanobacterial genomes, using "Targetron" methodology. J. Brand interacts extensively with the community of scientists, engineers and business interests that is developing new commercial uses of algae, especially as a source of transportation fuel. http://www.sbs.utexas.edu/brand/index.html http://www.youtube.com/user/UTMcCombsSchool http://www.biosci.utexas.edu/mcdb/research.aspx http://www.biosci.utexas.edu/
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Table of Contents: 00:12 - BACTERIA AND ARCHAEA 00:31 - LIKE EUKARYOTES 00:49 - UNLIKE EUKARYOTES 01:13 - COLONIES 01:18 - CELL WALL 01:44 - GRAM STAINING 02...
A very detailed video on the stages of filtration, Nitrogen cycle and beneficial bacteria. Related links below: My ebay selling page: http://stores.ebay.co.u...
Chapter 12: Plant Biology
University of Southern California chemistry graduate student Candy Hwang won second prize and the People's Choice Award in a December 2012 video contest sponsored by the National Science Foundation (NSF), "Creating the Future." Hwang’s 90-second video, "The Secrets of Nitrogenase," is a lively, colorful animation that sketches out the story of industrial nitrogen fixation and her interest in helping to develop more environmentally friendly fixation methods than those industry currently uses. Nitrogen fixation is a process in which nitrogen, which has very durable chemical bonds, is converted into ammonia and thus made more available for use as a nutrient (or other product).
Nitrogen fixation for agriculture
Concepcion Marquez Video Nitrogen Cycle Period 7 What is Nitrogen? *Nitrogen is a naturally occurring element that is essential for growth and reproduction in both plants and animals. *Nitrogen is an element that can be combine with itself or with other elements to make different compounds. * For instance nitrogen gas, is a compound made when two nitrogen atoms form a chemical bond *Nitrogen makes up 78% of our atmosphere. While oxygen makes up a little less than 20% of the atmosphere *Nitrogen can not be taken in directly by the plants and animals until it is converted into compounds they can use *This process is called The Nitrogen Cycle The Nitrogen Cycle *The first part of the nitrogen cycle is Nitrogen fixation *Which is the conversion of nitrogen gas into ammonia *This happens when the intense energy of a lightning strike or when air in the top layer of soil comes in contact with particular types of nitrogen-fixing bacteria *These bacterias live on the roots of legumes, such as soybeans *Other types of bacteria living in the soil use ammonia ions from nitrogen fixation or from the waste of decomposers to perform nitrification *Nitrification is the conversion of ammonia ions into nitrites ions and then other bacteria convert it to nitrate ions *Plants are then able to take up nitrate ions *Denitrification is the final step in which other bacteria convert nitrates in the water or in the soil back into nitrogen gas which is then released back into the atmosphere to being the cycle again How Do Humans Affect the Nitrogen Cycle? *Our use of fertilizers and different chemical additives to the soil greatly increases the amount of nitrogen in the soil, and in turn, also creates a lot of runoff problems. *We add nitrogen by the burning of fossil fuels. This creates nitrous, oxide and other compounds containing nitrogen and oxygen which are greenhouse gas, greenhouse gases leading to global warming and climate change. *The growth of legumes like plant, like peas, also increases nitrogen in the soil because they're nitrogen, the bacteria on them are nitrogen fixers. *We see a lot of different consequences as a result of our activities, and the number one thing is that we've increased the rate of nitrogen cycle, to almost double what it was before humans really started to impact the cycle. *Some of the consequences that we've seen as a result are the decrease of soil nutrients like calcium and potassium because nitrogen gets taken out more it uses all the other nutrients as well *A lot of times nitrogen can enter water bodies, and it leads to an excess amount of nitrogen, which can cause harmful algal blooms, which essentially reduces the oxygen in the water and results in large fish kills. *This is having a serious impact on ecosystems around the world.
visit for Free Science videos for kids. Do you know that Plants cannot absorb nitrogen directly from the atmosphere.This nitrogen needs to be fixed first so that it can be used by plants and animals.In this short video, we learn that certain types of bacteria help to convert atmospheric nitrogen into usable forms such as nitrates and nitrites.These nitrogen fixing bacteria are commonly found in the roots of plants of pulses(legumes). These usable forms of nitrogen are absorbed by plants to produce amino acids, which in turn form proteins. When an animal eats these plants, nitrogen enters its body through the proteins present in plants.When plants and animals die, they start decomposing after some time. During this process, proteins containing nitrogen are converted into nitrates and nitrites by the action of decomposing bacteria ,which is present in the soil. Few other types of bacteria convert nitrates and nitrites into nitrogen gas.This way nitrogen cycle continues.
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In this Farms.com Soybean Report, Holly Loucas, Agronomist with Dow AgroSciences shows how farmers can scout their fields and make sure they have adequate ni...
While the nitrogen problem in agriculture is a large and complex issue, there are many steps that can be taken to help fix it. For more information (and where we got our information) please visit: http://www.britannica.com/EBchecked/topic/143973/crop-rotation http://www.nature.com/scitable/knowledge/library/biological-nitrogen-fixation-23570419 Check out our iGEM website: http://2014.igem.org/Team:WashU_StLouis Contact us at washu.igem@gmail.com https://www.facebook.com/WashuIgem https://twitter.com/WashUiGEM
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Legumes in cash crops and cover crops use natural symbiotic relationships with rhizobia to get nitrogen into the soil. North Carolina State University's Dr. ...
We discuss the benefits of growing plants that fix nitrogen and some things you can do to prevent nitrogen from fertilizing a lake near you. Nitrifying and denitrifying bacteria have opposite roles. Nitrifying bacteria convert atmospheric Nitrogen (N2) into a form plants can use NO3. Denitrifying bacteria convert NO3 back into atmospheric nitrogen (N2).
Sarah Weber explains the methods used for measuring Nitrogen and carbon fixation in phytoplankton, aboard the R/V Endeavor, Gulf of Mexico, June 2013. Learn ...
I thought I would never find one of these trees to buy, and there it was, growing by the side of the road! This is an interesting fruit, a tree that pulls ni...
Nitrogen Fixation Process.
Nitrogen is essential for all known forms of life, because it's a building block of DNA and RNA.
The Times of India 2015-03-25Nitrogen is essential for all known forms of life, because it is a building block of DNA and RNA.
Taipei Times 2015-03-25The nitrogen was detected in the form of nitric oxide, and could be released from the breakdown of nitrates during heating.
DNA India 2015-03-25Nitrogen, as Discovery News notes, is essential for life, as it’s a building block of RNA and DNA.
Huffington Post 2015-03-25Nasa's Curiosity rover has made an interesting nitrogen discovery on the surface of Mars ... Nitrogen is ...
BBC News 2015-03-25Nitrogen is essential for all known forms of life, because it's a building block of DNA and RNA.
Canberra Times 2015-03-25The use of nitrogen gas causes hypoxia, the gradual lack of oxygen in the blood.
Press TV 2015-03-25"Nitrogen is not a 'poison' in the traditional sense." ... death by nitrogen asphyxiation. Nitrogen gas ...
National Journal 2015-03-25Arcadia Biosciences says field trials for its nitrogen-efficient rice produced an average of 27 percent higher yield.
The Business Review 2015-03-25For more information on the NILE Alternative Fixation Spinal System and K2M's complete product portfolio, visit www.
noodls 2015-03-25Preplant and inseason nitrogen management for optimal production and nitrogen use efficiency;.
The Sidney Herald 2015-03-25Nitrates are compounds that contain nitrogen, an element essential for life.
Voa News 2015-03-25NASA's Curiosity rover has found new evidence of nitrogen on Mars, proving that the red planet has ...
ABC News 2015-03-25Nitrogen fixation is a process by which nitrogen (N2) in the atmosphere is converted into ammonium (NH4+). Atmospheric nitrogen or elemental nitrogen (N2) is relatively inert: it does not easily react with other chemicals to form new compounds. Fixation processes free up the nitrogen atoms from their diatomic form (N2) to be used in other ways.
Nitrogen fixation, natural and synthetic, is essential for all forms of life because nitrogen is required to biosynthesize basic building blocks of plants, animals and other life forms, e.g., nucleotides for DNA and RNA and amino acids for proteins. Therefore nitrogen fixation is essential for agriculture and the manufacture of fertilizer. It is also an important process in the manufacture of explosives (e.g. gunpowder, dynamite, TNT, etc.) Nitrogen fixation occurs naturally in the air by means of lightning.[dead link]
Nitrogen fixation also refers to other biological conversions of nitrogen, such as its conversion to nitrogen dioxide. Microorganisms that fix nitrogen are bacteria called diazotrophs. Some higher plants, and some animals (termites), have formed associations (symbioses) with diazotrophs. Biological nitrogen fixation was discovered by the German agronomist Hermann Hellriegel and Dutch microbiologist Martinus Beijerinck.