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Related Experiment Video

Updated: Dec 5, 2025

Exploring the Arginine Methylome by Nuclear Magnetic Resonance Spectroscopy

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Published on: December 16, 2021

What we know about plant arginases?

Shiva Siddappa¹, Gopal Kedihithlu Marathe²

¹Department of Studies in Biochemistry, University of Mysore, Manasagangothri, Mysuru, 570006, Karnataka, India.

Plant Physiology and Biochemistry : PPB

|October 17, 2020

Summary

Plants recycle nitrogen using arginase and urease enzymes to convert arginine to ammonia. This review details plant arginase characteristics and its crucial role in nitrogen metabolism, especially under environmental stress.

Keywords:

Arginine Biotic and abiotic stress Jasmonic acid inducible proteins (JIPs)Nitrogen recycling Plant arginase Polyamines

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Area of Science:

Biochemistry
Plant Science
Molecular Biology

Background:

Nitrogen is essential for plant growth, with arginine serving as a major nitrogen storage molecule.
Arginase and urease enzymes are key to nitrogen recycling in plants, converting arginine to ammonia.
Plant arginases differ significantly from animal counterparts, primarily in urea metabolism.

Purpose of the Study:

To review the structural and biochemical characteristics of plant arginases.
To explain the significance of arginase in plant nitrogen recycling.
To present recent findings on plant arginase function and activation under environmental stress.

Main Methods:

Literature review focusing on biochemical and biophysical studies of plant arginases.
Analysis of existing research on nitrogen metabolism pathways in plants.
Synthesis of recent data on environmental influences on arginase activity.

Main Results:

Plant arginases exhibit unique structural and biochemical properties compared to animal enzymes.
Arginase plays a vital role in the efficient recycling of nitrogen within plant systems.
Environmental factors (biotic and abiotic) modulate plant arginase activity and function.

Conclusions:

Understanding plant arginase is crucial for comprehending nitrogen use efficiency in plants.
Further research into plant arginase can inform strategies for improving crop yields and stress resilience.
Plant arginases represent a key target for metabolic engineering in agriculture.