ArticlePlanta2026
Interaction between reactive oxygen species and nitric oxide in programmed cell death of Paeonia lactiflora seeds during cryopreservation.
Article in Planta, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Authors and funding
5 authors.
Funding
Abstract
MAIN
conclusionIn PCD of Paeonia lactiflora seeds during cryopreservation, the nitrate reductase pathway is the critical path of ROS-induced nitric oxide (NO) biosynthesis. The AsA-GSH antioxidant cycle, catalase and superoxide dismutase, are the action sites of NO-mediated ROS regulation. Programmed cell death (PCD) is one of the main reasons affecting the changes in cell viability after cryopreservation. Reactive oxygen species (ROS) and nitric oxide (NO) are key signaling molecules in PCD. However, the relationship between these two signaling molecules in the occurrence of PCD during plant cryopreservation remains unclear. Therefore, in this study, Paeonia lactiflora seeds with varying moisture contents were used as the material. This is based on the changes in seed viability, ROS, and NO before and after cryopreservation. The relationship between ROS and NO and their interaction mechanism during the occurrence of PCD in seed cryopreservation under the action of exogenous ROS and NO regulators are studies. The results showed that after cryopreservation, the viability with high-moisture-content seeds significantly decreased, and the contents of ROS and NO significantly increased. Conversely, the trend was the opposite for seeds with low moisture content. Correlation analysis indicated a significant correlation between seeds viability and the levels of hydroxyl radical (·OH), hydrogen peroxide (H
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