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Related Experiment Videos

Nickel as a micronutrient element for plants.

D A Dalton1, S A Russell, H J Evans

  • 1Department of Biology, Reed College, Portland, OR 97202.

Biofactors (Oxford, England)
|January 1, 1988
PubMed
Summary
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Nickel (Ni) is an essential micronutrient for plant growth, vital for enzymes like urease. Ni deficiency causes urea accumulation and plant damage, highlighting its importance for plant development and seed viability.

Area of Science:

  • Plant Physiology
  • Biochemistry
  • Nutrient Metabolism

Background:

  • Excessive nickel (Ni) is known to harm plants, but recent research reveals its essential role in small quantities.
  • Nickel is a crucial component of the enzyme urease in plants and microorganisms.
  • Ni deficiency leads to urea accumulation and necrotic lesions in plant leaves.

Purpose of the Study:

  • To investigate the essentiality of nickel (Ni) for plant growth and development.
  • To elucidate the role of Ni in urease function and nitrogen metabolism.
  • To confirm Ni as a required micronutrient for plant species.

Main Methods:

  • Literature review on Ni's role in plant physiology and biochemistry.
  • Analysis of Ni's function in urease and nitrogenous compound mobilization.

Related Experiment Videos

  • Examination of Ni deficiency symptoms and seed viability in affected plants.

    • Main Results:

    • Nickel (Ni) is essential for urease activity, which is critical for nitrogen mobilization during plant development.
    • Ni deficiency results in urea accumulation, leading to leaf necrosis and impaired seed germination.
    • Studies on Hordeum demonstrated complete inviability of seeds under severe Ni deficiency.

    Conclusions:

    • Nickel (Ni) is an essential micronutrient for plants, required for normal growth and development.
    • The essentiality of Ni is confirmed by its role in urease function and its impact on seed viability.
    • Ni should be recognized as a generally required micronutrient element for plant species.