Is there a strategy I iron uptake mechanism in maize?. (3rd April 2018)

• Record Type: Journal Article
• Authors: Li, Suzhen; Zhou, Xiaojin; Chen, Jingtang; Chen, Rumei
• Is Part Of: Plant signaling & behavior. Volume 13:Number 4(2018)
• Publication Date: 2018-04-03
• Subjects: Fe uptake -- maize -- mechanism -- strategy I -- strategy II; Plant ecophysiology -- Periodicals; Plant cellular signal transduction -- Periodicals; Plant cellular signal transduction; Plant ecophysiology; Periodicals; Electronic journals; 581
• DOI: 10.1080/15592324.2016.1161877
• Languages: English
• ISSNs: 1559-2316

Abstract

ABSTRACT: Iron is a metal micronutrient that is essential for plant growth and development. Graminaceous and nongraminaceous plants have evolved different mechanisms to mediate Fe uptake. Generally, strategy I is used by nongraminaceous plants like Arabidopsis, while graminaceous plants, such as rice, barley, and maize, are considered to use strategy II Fe uptake. Upon the functional characterization of OsIRT1 and OsIRT2 in rice, it was suggested that rice, as an exceptional graminaceous plant, utilizes both strategy I and strategy II Fe uptake systems. Similarly, ZmIRT1 and ZmZIP3 were identified as functional zinc and iron transporters in the maize genome, along with the determination of several genes encoding Zn and Fe transporters, raising the possibility that strategy I Fe uptake also occurs in maize. This mini-review integrates previous reports and recent evidence to obtain a better understanding of the mechanisms of Fe uptake in maize.