Silencing of rice PPR gene PPS1 exhibited enhanced sensibility to abiotic stress and remarkable accumulation of ROS

Silencing of rice PPR gene PPS1 exhibited enhanced sensibility to abiotic stress and remarkable accumulation of ROS

Copyright © 2021 Elsevier GmbH. All rights reserved.

Bibliographische Detailangaben
Veröffentlicht in:Journal of plant physiology. - 1979. - 258-259(2021) vom: 01. März, Seite 153361
1. Verfasser: Xiao, Haijun (VerfasserIn)
Weitere Verfasser: Liu, Zhongjie, Zou, Xue, Xu, Yanghong, Peng, Leilei, Hu, Jun, Lin, Honghui
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2021
Zugriff auf das übergeordnete Werk:Journal of plant physiology
Schlagworte:Journal Article Abiotic stress PPR ROS Plant Proteins Reactive Oxygen Species
Beschreibung
Zusammenfassung:Copyright © 2021 Elsevier GmbH. All rights reserved.
Abiotic stresses widely constrain the development and reproduction of plant, especially impaired the yield of crops greatly. Recent researches presented pentatricopeptide repeat (PPR) proteins play crucial role in response to abiotic stress. However, the underlying mechanism of PPR genes in regulation of abiotic stress is still obscures. In our recent study, we found that the knockout of rice PPS1 causes pleiotropic growth disorders, including growth retardation, dwarf and sterile pollen, and finally leads to impaired C-U RNA editing at five consecutive sites on the mitochondrial nad3. In this study, we further investigate the roles of PPS1 in abiotic stress tolerance, we confirmed that pss1-RNAi line exhibited enhanced sensitivity to salinity and ABA stress at vegetative stage, specifically. While reactive oxygen species (ROS) accumulate significantly only at reproductive stage, which further activated the expression of several ROS-scavenging system related genes. These results implied that PPS1 functioned on ROS signaling network to contribute for the flexibility to abiotic stresses. Our research emphasizes the stress adaptability mediated by the PPR protein, and also provides new insight into the understanding of the interaction between cytoplasm and nucleus and signal transduction involved in RNA editing
Beschreibung:Date Completed 01.06.2021
Date Revised 01.06.2021
published: Print-Electronic
Citation Status MEDLINE
ISSN:1618-1328
DOI:10.1016/j.jplph.2020.153361