PYR/PYL/RCAR Abscisic Acid Receptors Regulate Root Cell hydraulic Conductivity through Activating Aquaporin expression


  •  Xiaolin Wang    
  •  Ningning Zhang    
  •  Jiakun Yan    

Abstract

With a varied physical environment, plants have developed specific mechanisms that allow them to rapidly perceive and respond to stresses in the environment. As one of many pathways conserved in a long time evolution, the abscisic acid (ABA) signaling pathway has been identified as a central regulator to control gene expression and generate physiological adaptation to various stressful conditions in plant. As abscisic acid receptors, PYR/PYL/RCARs have been proved to regulate stomatal closure. Here we detected the root cell hydraulic conductivity and the aquaporin expression under treatment of exogenous ABA in wild-type and pyr1/pyl1/pyl2/pyl4 mutant Arabidopsis using cell pressure probe and qRT-PCR technology. The results showed that PYR/PYL/RCAR receptors regulate root cell hydraulic conductivity through activating aquaporin expression. Lastly, we discussed how plants maintain water balance combined with the data obtained from published articles.



This work is licensed under a Creative Commons Attribution 4.0 License.
  • ISSN(Print): 1916-9671
  • ISSN(Online): 1916-968X
  • Started: 2009
  • Frequency: quarterly

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