Effects of arginine on Polytomella parva growth, PII protein levels and lipid body formation

@article{Lapina2019EffectsOA,
  title={Effects of arginine on Polytomella parva growth, PII protein levels and lipid body formation},
  author={Tatiana V. Lapina and Lidiya Yu Kochemasova and Karl Forchhammer and Elena V. Ermilova},
  journal={Planta},
  year={2019},
  volume={250},
  pages={1379-1385}
}
Main conclusionl-Arginine supports growth and resulted in increased PII signaling protein levels and lipid droplet accumulation in the colorless green alga Polytomella parva.AbstractPolytomella parva, a model system for nonphotosynthetic green algae, utilizes ammonium and several carbon sources, including ethanol and acetate. We previously reported that P. parva accumulates high amounts of arginine with the key enzyme of the ornithine/arginine biosynthesis pathway, N-acetyl-L-glutamate kinase… 
From Cyanobacteria to Archaeplastida: new evolutionary insights into PII signaling in the plant kingdom.
TLDR
This review considers recent advances in understanding metabolic signaling by PII proteins of the plant kingdom and the PII signaling system of red algae has been identified as an evolutionary intermediate between that of Cyanobacteria and Chloroplastida.
Arginine-Dependent Nitric Oxide Generation and S-Nitrosation in the Non-Photosynthetic Unicellular Alga Polytomella parva
TLDR
The data argue for NR-independent NO synthesis and its active role in S-nitrosation as an essential post-translational modification in P. parva.

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