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| Content Provider | frontiers |
|---|---|
| Author | Sun, Chaohua Wu, Ting Zhai, Longmei Li, Duyue Zhang, Xinzhong Xu, Xuefeng Ma, Huiqin Wang, Yi Han, Zhenhai |
| Description | Reactive oxygen species (ROS) are important signaling molecules in plants that contribute to stress acclimation. This study demonstrated that ROS play a critical role in Fe deficiency-induced signaling at an early stage in Malus xiaojinensis. Once ROS production has been initiated, prolonged Fe starvation leads to activation of ROS scavenging mechanisms. Further, we demonstrated that ROS scavengers are involved in maintaining the cellular redox homeostasis during prolonged Fe deficiency treatment. Taken together, our results describe a feedback repression loop for ROS to preserve redox homeostasis and maintain a continuous Fe deficiency response in the Fe-efficient woody plant M. xiaojinensis. More broadly, this study reveals a new mechanism in which ROS mediate both positive and negative regulation of plant responses to Fe deficiency stress. |
| Abstract | Abstract Reactive oxygen species (ROS) are important signaling molecules in plants that contribute to stress adaption. This study demonstrated that ROS play a critical role in Fe deficiency-induced signaling at an early stage in Malus xiaojinensis. Once ROS production has been initiated, prolonged Fe starvation leads to activation of ROS scavenging mechanisms. Further, we demonstrated that ROS scavengers are involved in maintaining the cellular redox homeostasis during prolonged Fe deficiency treatment. Taken together, our results describe a feedback repression loop for ROS to preserve redox homeostasis and maintain a continuous Fe deficiency response in the Fe-efficient woody plant M. xiaojinensis. More broadly, this study reveals a new mechanism in which ROS mediate both positive and negative regulation of plant responses to Fe deficiency stress. |
| ISSN | 1664462X |
| DOI | 10.3389/fpls.2016.01726 |
| Volume Number | 7 |
| Journal | Frontiers in Plant Science |
| Language | English |
| Publisher Date | 2016-11-16 |
| Access Restriction | Open |
| Subject Keyword | Early Response M. xiaojinensis Woody plant Fe deficiency ROS |
| Content Type | Text |
| Resource Type | Article |
| Subject | Plant Science |
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