Brachypodium BdABCG25 is a homolog of Arabidopsis AtABCG25 involved in the transport of abscisic acid,FEBS Letters

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Brachypodium BdABCG25 is a homolog of Arabidopsis AtABCG25 involved in the transport of abscisic acid
FEBS Letters ( IF 3.0 ) Pub Date : 2020-09-24 , DOI: 10.1002/1873-3468.13925
Takashi Kuromori ₁ , Eriko Sugimoto ₁ , Kazuo Shinozaki ₁

Affiliation

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.

中文翻译：

Brachypodium BdABCG25 是拟南芥 AtABCG25 的同源物，参与脱落酸的转运

脱落酸 (ABA) 是植物产生的一种应对各种环境胁迫的胁迫激素，具有作为移动分子的潜力。最近，已经描述了几种类型的 ABA 转运蛋白。我们之前发现了一种膜转运蛋白 AtABCG25，它参与拟南芥中的细胞间 ABA 转运。然而，目前尚不清楚不同植物物种中是否存在 AtABCG25 的同源物。在这里，我们在Brachypodium distachyon 中鉴定了AtABCG25 的同源物，命名为BdABCG25，并表征了其功能。我们检查了 BdABCG25 的 ABA 转运活性和 BdABCG25 在拟南芥中表达的生理特性。结果表明 BdABCG25 是 AtABCG25 的推定功能同源物。调节细胞间 ABA 转运可能是培育抗逆单子叶植物作物的一种新策略。

更新日期：2020-09-24

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