Physiological and Biochemical Mechanisms of Prunus Sanchalinsis Root for Coping with Short-Term Waterlogging and Subsequent Recovery
Abiotic stresses in plants are often transient, and the recovery phase following stress removal is critical. Waterlogging, major abiotic stress that negatively impacts plant biodiversity and agriculture, is sequential stress where tolerance is strongly dependent on waterlogging times and the post-waterlogging period. Heavy summer rains increase the risk of waterlogging in Chinese cherry production areas. However, the mechanism underlying the response to waterlogging and post-waterlogging reoxygenation in cherry remains unknown. Here, in Prunus sachalinensis Kom., we reveal alterations in root responses under waterlogging and recovery periods. The results showed that variations in ROS accumulation and scavenging, energy status, and signal transduction were time-specific. Waterlogging increased the accumulation of fermentation products, which were accompanied by decreased adenylate energy states and starch levels , indicating that Ps-RAMY upregulation maintains the energy balance. Reoxygenation resulted in a recovery period that caused a ROS burst. After 1 d of recovery, ROS accumulation peaked, and after 5 d of recovery, the ROS levels returned to normal. These results indicate that 24 h of waterlogging did not cause irreversible injury in Prunus sachalinensis . Additionally, a regulatory module that controls ROS homeostasis and energy status during waterlogging recovery was described. Together, these results provide a deeper understanding of the mechanism underlying the response to waterlogging and the subsequent recovery
Year of publication: |
[2022]
|
---|---|
Authors: | Zhang, Peng ; He, Jiali ; Lyu, Deguo ; Qin, Sijun |
Publisher: |
[S.l.] : SSRN |
Saved in:
Saved in favorites
Similar items by person
-
LIU, Yana, (2022)
-
Zhang, Peng, (2014)
-
Zhang, Peng, (2023)
- More ...