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Related Concept Videos

The Phosphorus Cycle01:21

The Phosphorus Cycle

39.3K
Unlike carbon, water, and nitrogen, phosphorus is not present in the atmosphere as a gas. Instead, most phosphorus in the ecosystem exists as compounds, such as phosphate ions (PO43-), found in soil, water, sediment and rocks. Phosphorus is often a limiting nutrient (i.e., in short supply). Consequently, phosphorus is added to most agricultural fertilizers, which can cause environmental problems related to runoff in aquatic ecosystems.
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Roles of Electrolytes: Calcium and Phosphate01:27

Roles of Electrolytes: Calcium and Phosphate

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Calcium and phosphate are essential electrolytes in the human body, with calcium being the most abundant mineral. Around 99% of the body's calcium is stored in the skeleton and teeth, forming a crystal lattice of mineral salts in combination with phosphates. Calcium plays crucial roles in various bodily functions such as blood clotting, neurotransmitter release, muscle tone maintenance, and nervous and muscle tissue excitability.
The calcium concentration in blood plasma is primarily...
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Phosphate Buffer01:22

Phosphate Buffer

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The phosphate buffer system is a critical biological mechanism for maintaining pH stability in the body. This system operates primarily through two components: sodium dihydrogen phosphate (NaH2PO4), which acts as a weak acid, and sodium hydrogen phosphate (Na2HPO4), which serves as a weak base.
Sodium dihydrogen phosphate does not fully dissociate in neutral or acidic solutions. When a strong base, such as sodium hydroxide (NaOH), is introduced into the solution, sodium dihydrogen phosphate...
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ATP Driven Pumps I: An Overview01:27

ATP Driven Pumps I: An Overview

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ATP-driven pumps, also known as transport ATPases, are integral membrane proteins. They have binding sites for ATP located on the membrane's cytosolic side and the ion-conducting domain in the transmembrane region. These pumps use the free energy released from ATP hydrolysis to move the solutes across cell membranes against an electrochemical gradient.
There are four main types of ATP-driven pumps - P-type, V-type, F-type, and ABC transporter. All these pumps are of varying complexities and...
8.7K
Protein Kinases and Phosphatases02:54

Protein Kinases and Phosphatases

13.5K
Proteins undergo chemical modifications that trigger changes in the charge, structure, and conformation of the proteins. Phosphorylation, acetylation, glycosylation, nitrosylation, ubiquitination, lipidation, methylation, and proteolysis are various protein modifications that regulate protein activity. Such modifications are usually enzyme-driven.
Protein kinases
Many proteins in the cell are regulated by phosphorylation, the addition of a phosphate group. A family of enzymes called kinases...
13.5K
Phosphorylation01:02

Phosphorylation

51.4K
The addition or removal of phosphate groups from proteins is the most common chemical modification that regulates cellular processes. These modifications can affect the structure, activity, stability, and localization of proteins within cells as well as their interactions with other proteins.
During phosphorylation, protein kinases transfer the terminal phosphate group of ATP to specific amino acid side chains of substrate proteins. Serine, threonine, and tyrosine are the most commonly...
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Related Experiment Video

Updated: Sep 27, 2025

Measuring Phosphorus Release in Laboratory Microcosms for Water Quality Assessment
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Measuring Phosphorus Release in Laboratory Microcosms for Water Quality Assessment

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The sixth R: Revitalizing the natural phosphorus pump.

Andrew J Abraham1, Joe Roman2, Christopher E Doughty1

  • 1School of Informatics, Computing, and Cyber Systems, Northern Arizona University Flagstaff, AZ 86011, USA.

The Science of the Total Environment
|April 7, 2022
PubMed
Summary

Peak phosphorus threatens food production. Revitalizing the Natural Phosphorus Pump (RNPP) by restoring animal-mediated phosphorus transport can help alleviate this crisis and enhance global fertility.

Keywords:
Biodiversity lossEcosystem servicesEutrophicationNature-based solutionsPeak PPhosphorusREDDRNPPRewilding

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Laboratory-determined Phosphorus Flux from Lake Sediments as a Measure of Internal Phosphorus Loading
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Laboratory-determined Phosphorus Flux from Lake Sediments as a Measure of Internal Phosphorus Loading

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Optimized Procedure for Determining the Adsorption of Phosphonates onto Granular Ferric Hydroxide using a Miniaturized Phosphorus Determination Method
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Optimized Procedure for Determining the Adsorption of Phosphonates onto Granular Ferric Hydroxide using a Miniaturized Phosphorus Determination Method

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Laboratory-determined Phosphorus Flux from Lake Sediments as a Measure of Internal Phosphorus Loading
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Laboratory-determined Phosphorus Flux from Lake Sediments as a Measure of Internal Phosphorus Loading

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Optimized Procedure for Determining the Adsorption of Phosphonates onto Granular Ferric Hydroxide using a Miniaturized Phosphorus Determination Method
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Optimized Procedure for Determining the Adsorption of Phosphonates onto Granular Ferric Hydroxide using a Miniaturized Phosphorus Determination Method

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Area of Science:

  • Ecology
  • Biogeochemistry
  • Conservation Science

Background:

  • Phosphorus (P) is a vital nutrient for life and agriculture, but accessible phosphate rock reserves are dwindling.
  • Historical phosphorus cycling relied heavily on animal-mediated transport from oceans to continents.
  • Declining wildlife populations have reduced this natural phosphorus redistribution by over 90% in 12,000 years.

Purpose of the Study:

  • To propose a novel strategy to address the global challenge of "peak phosphorus".
  • To introduce a sixth 'R' strategy: Revitalize the Natural Phosphorus Pump (RNPP).
  • To suggest a P-trading scheme, inspired by REDD+, for incentivizing the restoration of animal-mediated P pathways.

Main Methods:

  • Reviewing the historical role of wild animals in global phosphorus cycling.
  • Analyzing the impact of species extinctions and population declines on phosphorus transport.
  • Proposing a P-trading mechanism linked to conservation and ecosystem restoration.

Main Results:

  • Wild animals were crucial in redistributing phosphorus, supporting planetary fertility.
  • The reduction in animal-mediated phosphorus transport has significantly impacted nutrient cycling.
  • A P-trading scheme could fund wildlife conservation and boost natural phosphorus recycling.

Conclusions:

  • Restoring natural phosphorus pathways via wildlife conservation is a viable strategy to combat peak phosphorus.
  • Integrating ecological restoration into resource management can enhance phosphorus availability.
  • The proposed RNPP strategy offers a complementary approach to existing phosphorus management frameworks.