D. Bar-Zvi

Arabidopsis ubiquitin ligase PUB41 is a positive regulator of the ABA response

This study identifies AtPUB41 as a positive regulator of ABA signaling in Arabidopsis, affecting seed dormancy, germination, and drought resilience.

The ABA INSENSITIVE (ABI) 4 transcription factor is stabilized by stress, ABA and phosphorylation

This study shows ABI4 protein stability is regulated by stress, ABA, and phosphorylation at Serine 114, with MAP kinases affecting both transcript and protein levels.

The Activity of the Stress Modulated Arabidopsis Ubiquitin Ligases PUB46 and PUB48 is Partially Redundant

This study shows that PUB46 and PUB48 in Arabidopsis have partially redundant roles in drought response, with additional specific functions when both are inhibited.

Phosphorylation of Serine114 of the transcription factor ABSCISIC ACID INSENSITIVE 4 is essential for activity

This study shows that phosphorylation of Serine114 in ABI4 is essential for its activity, affecting ABA, glucose, salt stress responses, and lateral root development.

Overexpression of Arabidopsis ubiquitin ligase AtPUB46 enhances tolerance to drought and oxidative stress

This paper shows that overexpressing AtPUB46 in Arabidopsis improves drought and oxidative stress tolerance through reduced stomatal size and altered stress pathway activity.