Ontology highlight
ABSTRACT:
SUBMITTER: Shimizu T
PROVIDER: S-EPMC8227765 | biostudies-literature | 2021 Jun
REPOSITORIES: biostudies-literature
Shimizu Takafumi T Kanno Yuri Y Suzuki Hiromi H Watanabe Shunsuke S Seo Mitsunori M
Genes 20210608 6
The plant hormone abscisic acid (ABA) is actively synthesized in vascular tissues and transported to guard cells to promote stomatal closure. Although several transmembrane ABA transporters have been identified, how the movement of ABA within plants is regulated is not fully understood. In this study, we determined that Arabidopsis NPF4.6, previously identified as an ABA transporter expressed in vascular tissues, is also present in guard cells and positively regulates stomatal closure in leaves. ...[more]