LjABCB1, an ATP-binding cassette protein specifically induced in uninfected cells of Lotus japonicus nodules

Kojiro Takanashi, Akifumi Sugiyama, Shusei Sato, Satoshi Tabata, Kazufumi Yazaki

研究成果: ジャーナルへの寄稿学術論文査読

19 被引用数 (Scopus)

抄録

Legume plants develop root nodules through symbiosis with rhizobia, and fix atmospheric nitrogen in this symbiotic organ. Development of root nodules is regulated by many metabolites including phytohormones. Previously, we reported that auxin is strongly involved in the development of the nodule vascular bundle and lenticel formation on the nodules of Lotus japonicus. Here we show that an ATP-binding cassette (ABC) protein, LjABCB1, which is a homologue of Arabidopsis auxin transporter AtABCB4, is specifically expressed during nodulation of L. japonicus. A reporter gene analysis indicated that the expression of LjABCB1 was restricted to uninfected cells adjacent to infected cells in the nodule, while no expression was observed in shoot apical meristems or root tips, in which most auxin transporter genes are expressed. The auxin transport activity of LjABCB1 was confirmed using a heterologous expression system.

本文言語英語
ページ(範囲)322-326
ページ数5
ジャーナルJournal of Plant Physiology
169
3
DOI
出版ステータス出版済み - 2012 2月 15

フィンガープリント

「LjABCB1, an ATP-binding cassette protein specifically induced in uninfected cells of Lotus japonicus nodules」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル