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Sulfur Assimilation01:20

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Sulfur is an essential element in biological systems, contributing to synthesizing key biomolecules, including amino acids such as cysteine and methionine, and cofactors such as coenzyme A and biotin. Microorganisms primarily assimilate sulfur as sulfate (SO₄²⁻) from the environment, which must undergo a series of biochemical transformations before it can be incorporated into cellular components. As sulfate is highly oxidized, it must undergo assimilatory sulfate reduction to...
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Organisms exhibit remarkable metabolic diversity, categorized based on how they acquire energy and carbon. These strategies enable survival in various ecological niches and are essential for maintaining energy flow and nutrient cycling within ecosystems.Energy and Carbon SourcesOrganisms are classified as phototrophs or chemotrophs based on energy acquisition. Phototrophs use light as their energy source, while chemotrophs rely on oxidizing chemical compounds. Further differentiation arises...
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Sulfur, an important element in the chemical makeup of proteins, is recycled through the atmosphere and aquatic and terrestrial environments. Found in the atmosphere as sulfur dioxide (SO2), sulfur is released by decaying organisms, weathered rocks, geothermal vents, volcanos, and burning fossil fuels. It is deposited into the ecosystem, cycled through the biotic community, and either released back into the atmosphere as gas or deposited in marine sediment for long-term storage and eventual...
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Minerals are essential nutrients that the human body needs in small amounts to work properly. They play a vital role in many bodily functions, such as building strong bones and transmitting nerve impulses. Some minerals are needed for hormone production or to maintain a normal heartbeat. Major minerals include calcium, phosphorus, potassium, sulfur, sodium, chlorine, and magnesium, while trace minerals include iron, manganese, copper, iodine, zinc, cobalt, fluoride, and selenium.
 
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Assessing Mineral Availability in Fish Feeds using Complementary Methods Demonstrated with the Example of Zinc in Atlantic Salmon
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Nutrition and sulfur.

Stephen C Mitchell1

  • 1Faculty of Medicine, Imperial College London, London, England, United Kingdom.

Advances in Food and Nutrition Research
|June 11, 2021
PubMed
Summary
This summary is machine-generated.

Sulfur is a vital mineral for biochemical functions, structure, and defense. While generally sufficient in balanced diets, restrictive diets may require careful sulfur supplementation.

Keywords:
Coenzyme ACysteineGlutathioneMethionineSulfateSulfurToxicity

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Area of Science:

  • Biochemistry
  • Mineral Nutrition
  • Human Physiology

Background:

  • Sulfur is an essential mineral integrated into virtually all biochemical functions.
  • It plays critical roles in structural integrity, cellular communication, metabolism, energy transfer, and defense against reactive species.
  • Sulfur's diverse chemical forms and complex metabolism have historically made it overlooked in nutritional science.

Purpose of the Study:

  • To highlight the essential roles of sulfur in biological systems.
  • To address questions regarding adequate dietary sulfur intake in humans.
  • To explore the implications of sulfur's multifarious functions and dietary forms on nutritional status.

Main Methods:

  • Review of existing scientific literature on sulfur's biochemical functions.
  • Analysis of sulfur's presence and bioavailability in various dietary sources.
  • Discussion of challenges in establishing sulfur requirements and assessing intake.

Main Results:

  • Sulfur is indispensable for numerous physiological processes, including protein structure and metabolic pathways.
  • Dietary sulfur intake is often assumed adequate due to its widespread presence, but this may not hold true for individuals on specialized diets.
  • No definitive daily requirements for sulfur have been established, unlike other essential minerals.

Conclusions:

  • Sulfur is crucial for maintaining health and biochemical integrity.
  • While balanced diets typically provide sufficient sulfur, potential deficiencies can occur with restrictive eating patterns.
  • Supplementation may be beneficial in cases of low-level sulfur shortages.