Lecture 06 : Making Phosphate Buffer (100mM) | phosphate solution คือ

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Lecture 06 : Making Phosphate Buffer (100mM)


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Lecture 06 : Making Phosphate Buffer (100mM)

What is Phosphate solubilizing bacteria?, Explain Phosphate solubilizing bacteria


Phosphatesolubilizingbacteria audioversity
~~~ Phosphate solubilizing bacteria ~~~
Title: What is Phosphate solubilizing bacteria?, Explain Phosphate solubilizing bacteria
Created on: 20190311
Source Link: https://en.wikipedia.org/wiki/Phosphate_solubilizing_bacteria

Description: Phosphate solubilizing bacteria are beneficial bacteria capable of solubilizing inorganic phosphorus from insoluble compounds. Psolubilization ability of rhizosphere microorganisms is considered to be one of the most important traits associated with plant phosphate nutrition. It is generally accepted that the mechanism of mineral phosphate solubilization by PSB strains is associated with the release of low molecular weight organic acids, through which their hydroxyl and carboxyl groups chelate the cations bound to phosphate, thereby converting it into soluble forms. PSB have been introduced to the Agricultural community as phosphate Biofertilizer. Phosphorus is one of the major essential macronutrients for plants and is applied to soil in the form of phosphate fertilizers. However, a large portion of soluble inorganic phosphate which is applied to the soil as chemical fertilizer is immobilized rapidly and becomes unavailable to plants. Currently, the main purpose in managing soil phosphorus is to optimize crop production and minimize P loss from soils. PSB have attracted the attention of agriculturists as soil inoculums to improve the plant growth and yield. When PSB is used with rock phosphate, it can save about 50% of the crop requirement of phosphatic fertilizer. The use of PSB as inoculants increases P uptake by plants. Simple inoculation of seeds with PSB gives crop yield responses equivalent to 30 kg P2O5 /ha or 50 percent of the need for phosphatic fertilizers. Alternatively, PSB can be applied through fertigation or in hydroponic operations. Many different strains of these bacteria have been identified as PSB, including Pantoea agglomerans , Microbacterium laevaniformans and Pseudomonas putida strains are highly efficient insoluble phosphate solubilizers. Recently, researchers at Colorado State University demonstrated that a consortia of four bacteria , synergistically solubilize phosphorus at a much faster rate than any single strain alone.Additionally, phosphate compounds are capable of immobilizing heavy metals, especially Pb, in contaminated environments through phosphateheavy metal precipitation. However, most P compounds are not readily soluble in soils so it is not readily used for metal immobilization. Phosphate solubilizing bacteria have the potential to enhance phosphateinduced immobilization of metals to remediate contaminated soil. However, there is a limit on the amount of phosphate which can be added to the environment due to the issue of eutrophication.Phosphate is often adsorbed onto the surface of different type of minerals, for example iron containing minerals. Recent data suggest that bacteria growin under phosphorus starvation release ironchelating molecules. Considering the geochemical interaction between these two elements, the authors suggest that some bacteria can dissolve ironcontaining minerals in order to access the adsorbed phosphate .

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What is Phosphate solubilizing bacteria?, Explain Phosphate solubilizing bacteria

Bonderizing(phosphate coating)


Bonderizing(phosphate coating)

Chemistry – 3Sec – The detection on nitrite anion


Chemistry - 3Sec - The detection on nitrite anion

02.01: Potassium Phosphate, dibasic


In this video, I explore a couple reactions featuring dibasic potassium phosphate. Aside from its use as a buffer, there aren’t too many visually appealing experiments one can do.
This is the first video in the series of random chemicals being pulled from a hat. My goals for the project are to use chemicals I have in stock but I’m not using, and to research uses for these chemicals that I didn’t know about before. This was a great first video, because I learned a lot!
Thanks for watching!

02.01: Potassium Phosphate, dibasic

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