Physiological characterization of re-oxygenation responses in mahaleb seedlings

Short-term heavy rain, a frequent event during the summer season in Liaoning Province, China, is a common environmental constraint for cherry production as it causes oxygen deprivation in plants.
Mahaleb (Prunus mahaleb) has been used as a sweet cherry rootstock in cool regions because of its high propagation rate and adaptability.
However, this species is vulnerable to waterlogging caused by short-term heavy rainfalls, especially during the rainy season.
In the present study, we characterized the fundamental acclimation responses of mahaleb seedlings to re-oxygenation during the recovery after the period of anoxia.
Re-oxygenation rapidly decreased the malondialdehyde content in mahaleb, and the enzymatic assays revealed that the levels of catalase and peroxidase during waterlogging and re-oxygenation decreased.
We also characterized the differences in the response to re-oxygenation between root and leaf tissues.
Our results confirm that different tissues show different response to re-oxygenation NDASH roots recover faster from oxidative damage compared to leaves.

VIII International Cherry Symposium

Z. Peng, J. Luting, Q. Sijun, L. Deguo

waterlogging, ROS, MDA, recovery, mahaleb

https://doi.org/10.17660/ActaHortic.2019.1235.47