H. Sakakibara

CONCERTED PLANT GROWTH AND DEFENSE THROUGH TARGETED PHYTOHORMONE CROSSTALK MODIFICATION

This study shows that modifying phytohormone crosstalk in Arabidopsis can enhance pathogen resistance and reproductive growth by reducing the growth-defense tradeoff.

Large-scale single-cell profiling of stem cells uncovers redundant regulators of shoot development and yield trait variation

This study uses single-cell RNA-seq to identify stem cell regulators in maize and Arabidopsis, revealing genes linked to yield traits and shoot development.

The endophytic fungus Serendipita indica alters auxin distribution in Arabidopsis thaliana roots through alteration of auxin transport and conjugation to promote plant growth

This study identifies how the endophytic fungus Serendipita indica promotes Arabidopsis growth by altering auxin transport and conjugation through GH3 genes and PIN2 expression.

Genetic and transcriptomic dissection of nitrate-independent function of Arabidopsis NRT1.1/NPF6.3/CHL1 under high ammonium condition

This study investigates the nitrate-independent role of NRT1.1 in Arabidopsis under high ammonium conditions, finding that its plasma membrane localization affects ammonium tolerance through gene expression changes.

The trans-zeatin-type side-chain modification of cytokinins controls rice growth

This study identifies CYP735A3 and CYP735A4 as enzymes required for tZ-type cytokinin biosynthesis in rice, showing their role in growth promotion of both roots and shoots.

Photosynthetic-product-dependent Activation of Plasma Membrane H+-ATPase and Nitrate Uptake in Arabidopsis Leaves.

This study shows photosynthesis-dependent activation of PM H+-ATPase in Arabidopsis leaves enhances nitrate uptake, linking photosynthesis and nitrogen metabolism.

Root-specific reduction of cytokinin perception enhances shoot growth with an alteration of trans-zeatin distribution in Arabidopsis thaliana

This study shows that reducing cytokinin perception in roots increases shoot growth by altering trans-zeatin distribution in Arabidopsis.

Regulation of ammonium acquisition and use in Oryza longistaminata ramets under nitrogen source heterogeneity

Oryza longistaminata regulates ammonium acquisition and use in response to spatial nitrogen heterogeneity through inter-ramet communication.

Phosphate starvation response precedes abscisic acid response under progressive mild drought in plants

The paper shows that phosphate starvation response precedes abscisic acid response in plants under mild drought, using field and controlled experiments.

The molecular framework of heterophylly in Callitriche palustris L. differs from that in other amphibious plants

This study investigates the molecular and developmental mechanisms of heterophylly in Callitriche palustris, revealing hormonal and transcriptional differences from other amphibious plants.

Gene expression evolution in pattern-triggered immunity within Arabidopsis thaliana and across Brassicaceae species

The paper identifies genes under purifying selection and species-specific expression signatures in PTI responses across Brassicaceae species using comparative transcriptomics.

DNA damage inhibits root growth by enhancing cytokinin biosynthesis in Arabidopsis thaliana.

This study shows DNA damage in Arabidopsis roots increases cytokinin synthesis, which suppresses auxin transport and reduces root growth.

Excessive assimilation of ammonium by plastidic glutamine synthetase is a major cause of ammonium toxicity in Arabidopsis thaliana

This study identifies plastidic glutamine synthetase 2 (GLN2) as the primary cause of ammonium toxicity in Arabidopsis thaliana by inducing shoot acidity.

The maize Hairy Sheath Frayed1 (Hsf1) mutant alters leaf patterning through increased cytokinin signaling

The paper identifies a maize mutant with altered leaf patterning due to increased cytokinin signaling from a gain-of-function mutation in the cytokinin receptor ZmHK1.