Related Experiment Video
Updated: Aug 5, 2026

Real-Time Detection of Reactive Oxygen Species Production in Immune Response in Rice with a Chemiluminescence Assay
Published on: November 25, 2022
Nitric oxide-melatonin crosstalk as a stress-state-dependent signaling module in plants
Yanjun Zhang1, Dongmei Zhang1, Jianlong Dai1
1State Key Laboratory of Nutrient Use and Management, Institute of Industrial Crops, Shandong Academy of Agricultural Sciences, Jinan 250100, China.
Abstract:
Nitric oxide (NO) and melatonin (MT) are ubiquitous plant stress signals, yet their interplay is often reduced to simple antioxidant additivity or fixed synergy. In this review, we synthesize current evidence into an evidence-supported working framework in which NO-MT crosstalk functions as a reversible, stress-state-dependent signaling module governed by NO set-point control, redox-encoded post-translational modifications, and phase-, tissue-, and network-gated feedback. We distinguish three operational states: feed-forward activation, buffering restraint, and network integration. We further define minimum diagnostic criteria for state assignment, including NO kinetics, blockability, turnover/denitrosation capacity, and target-selective S-nitrosation. This framework clarifies when NO-MT coupling is causal, when it is buffered, and when it is redirected by broader reactive oxygen species/calcium/hormone/hydrogen sulfide.
Related Concept Videos
Nitric Oxide Signaling Pathway
Cell Signaling in Plants
Regulation of Transpiration by Stomata
Responses to Heat and Cold Stress
Short-distance Transport of Resources
Paracrine Signaling

