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Brachypodium BdABCG25 is a homolog of Arabidopsis AtABCG25 involved in the transport of abscisic acid
Author(s) -
Kuromori Takashi,
Sugimoto Eriko,
Shinozaki Kazuo
Publication year - 2021
Publication title -
febs letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.593
H-Index - 257
eISSN - 1873-3468
pISSN - 0014-5793
DOI - 10.1002/1873-3468.13925
Subject(s) - abscisic acid , brachypodium distachyon , arabidopsis , brachypodium , arabidopsis thaliana , biology , transporter , microbiology and biotechnology , function (biology) , abiotic stress , biochemistry , botany , gene , genome , mutant
Abscisic acid (ABA), a stress hormone produced by plants to cope with various environmental stresses, has potential as a mobile molecule. Recently, several types of ABA transporters have been described. We previously found a membrane transporter, AtABCG25, that is involved in intercellular ABA transport in Arabidopsis thaliana . However, it is not yet known whether there are any homologs of AtABCG25 in different plant species. Here, we identified a homolog of AtABCG25 in Brachypodium distachyon , named BdABCG25, and characterized its function. We examined the ABA transport activity of BdABCG25 and the physiological properties of BdABCG25 expression in Arabidopsis . The results suggest that BdABCG25 is a putative functional homolog of AtABCG25. Regulating intercellular ABA transport may be a novel strategy for breeding stress‐tolerant monocot crops.