Related Experiment Video
Updated: Jun 20, 2026

Application of Genetically Encoded Fluorescent Nitric Oxide (NO•) Probes, the geNOps, for Real-time Imaging of NO• Signals in Single Cells
Published on: March 16, 2017
Nitric oxide is a versatile sensor of low oxygen stress in plants
Ljudmilla Borisjuk1, Hardy Rolletschek
1Institut für Pflanzengenetik und Kulturpflanzenforschung (IPK); Gatersleben, Germany.
Abstract:
The plant response to low levels of oxygen involves an interplay of transcriptional, translational and post-translational signaling. However, in plants, the sensing mechanism itself remains obscure. The role of nitric oxide (NO) in oxygen sensing and balancing has been extensively explored in our laboratory. We suggest that NO is generated within the mitochondria from nitrite in response to hypoxia, and that this small gaseous molecule can reversibly modify both the respiratory oxygen consumption and the oxygen availability within the seed. We further propose that hemoglobins play a central role in the detoxification of excess NO.
Related Concept Videos
Nitric Oxide Signaling Pathway
Key Elements for Plant Nutrition
Cell Signaling in Plants
Short-distance Transport of Resources
Inorganic Nitrogen Assimilation
Regulation of Transpiration by Stomata

