Nitric oxide-centred signaling networks in plants: from growth to postharvest.

Authors

Michaela Sedlářová, Tereza Jedelská, Aleš Lebeda, Marek Petřivalský

Published in

Frontiers in plant science. Volume 17. Pages 1924602. Epub Aug 20, 2026.

Abstract

Nitric oxide (NO) has emerged as a versatile signaling molecule that regulates plant development, stress responses, and redox homeostasis through interactions with reactive oxygen species (ROS), phytohormones, and other bioactive compounds. In horticulture, postharvest losses remain a major challenge due to ongoing metabolic activity associated with ripening and senescence. Increasing evidence identifies NO as a key regulator capable of mitigating these processes and extending shelf life. This Mini Review provides a concept-driven synthesis positioning NO as a central integrator of plant signaling networks. We highlight its role as a redox-hormonal hub coordinating interactions with ROS and phytohormones. Special emphasis is placed on the dual role of NO as both a signaling molecule and a modulator of nitro-oxidative stress during plant growth, fruit ripening, and postharvest physiology. We further discuss key molecular mechanisms underlying postharvest responses, together with current controversies related to NO biosynthesis, concentration-dependent effects, and practical application strategies.

PMID:
42694734
Bibliographic data and abstract were imported from PubMed on 04 Sep 2026.

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