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. 1992 Nov;100(3):1571–1574. doi: 10.1104/pp.100.3.1571

Estimation of Ammonium Ion Distribution between Cytoplasm and Vacuole Using Nuclear Magnetic Resonance Spectroscopy 1

Justin K M Roberts 1, Maynard K L Pang 1
PMCID: PMC1075822  PMID: 16653160

Abstract

Evidence is presented that intracellular ammonium is trapped in vacuoles of maize (Zea mays L.) root tips because of rapid movement of ammonia between cytoplasm and vacuoles. The concentration of cytoplasmic ammonium is estimated to be <15 μm at extracellular ammonium concentrations up to 1 mm. The implications for pathways of ammonium assimilation are discussed.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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