Abscisic acid-independent stomatal CO2 signal transduction pathway and convergence of CO2 and ABA signaling downstream of OST1 kinase [Plant Biology]

Stomatal pore apertures are narrowing globally due to the continuing rise in atmospheric [CO2]. CO2 elevation and the plant hormone abscisic acid (ABA) both induce rapid stomatal closure. However, the underlying signal transduction mechanisms for CO2/ABA interaction remain unclear. Two models have been considered: (i) CO2 elevation enhances ABA concentrations...

Source: Proceedings of the National Academy of Sciences - October 16, 2018 Category: Science Authors: Po-Kai Hsu, Yohei Takahashi, Shintaro Munemasa, Ebe Merilo, Kristiina Laanemets, Rainer Waadt, Dianne Pater, Hannes Kollist, Julian I. Schroeder Tags: PNAS Plus Source Type: research