Sakiko Okumoto

High affinity amino acid transporters specifically expressed in xylem parenchyma and developing seeds of Arabidopsis.

Transport of cytokinins mediated by purine transporters of the PUP family expressed in phloem, hydathodes, and pollen of Arabidopsis.

Root phloem-specific expression of the plasma membrane amino acid proton co-transporter AAP3.

Genetically encoded sensors for metabolites.

Detection of glutamate release from neurons by genetically encoded surface-displayed FRET nanosensors.

Construction and optimization of a family of genetically encoded metabolite sensors by semirational protein engineering.

Arabidopsis LHT1 is a high-affinity transporter for cellular amino acid uptake in both root epidermis and leaf mesophyll.

Rapid metabolism of glucose detected with FRET glucose nanosensors in epidermal cells and intact roots of Arabidopsis RNA-silencing mutants.

A novel analytical method for in vivo phosphate tracking.

Imaging of glutamate in brain slices using FRET sensors.

Quantitative imaging for discovery and assembly of the metabo-regulome.

Imaging approach for monitoring cellular metabolites and ions using genetically encoded biosensors.

Amino acid export in plants: a missing link in nitrogen cycling.

Tobacco nicotine uptake permease (NUP1) affects alkaloid metabolism.

Quantitative imaging with fluorescent biosensors.

Quantitative imaging using genetically encoded sensors for small molecules in plants.

Visualization of glutamine transporter activities in living cells using genetically encoded glutamine sensors.

Glutamate receptor homologs in plants: functions and evolutionary origins.

The AAP gene family for amino acid permeases contributes to development of the cyst nematode Heterodera schachtii in roots of Arabidopsis.

Development of a domain-specific genetic language to design Chlamydomonas reinhardtii expression vectors.

Quantitative imaging approaches for small-molecule measurements using FRET sensors in plants.

Inter-subunit interactions between glutamate-like receptors in Arabidopsis.