ArticleBMC genomics2025
RNA-Seq uncovers endogenous NO-induced hormone signal transduction and carbon metabolism in response to PEG stress in alfalfa.
Article in BMC genomics, 2025. 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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Abstract
backgroundAlfalfa (Medicago sativa L.) has the benefits of high yield and nutritional value as a sustainable forage. However, the water deficit significantly limits its growth and yield performance. Nitric oxide (NO) is a signal molecule that can enhance plant tolerance. The majority of previous studies focus on the role of exogenous NO in plant tolerance. However, the underlying mechanism of endogenous NO in alfalfa drought tolerance remains largely unexplored.
resultsTo explore the mechanism of the endogenous NO-mediated water deficit resistance in the alfalfa, seedlings were exposed to polyethylene glycol 6000 (PEG) and NO scavenger (cPTIO). Results showed that PEG treatment significantly augmented alfalfa endogenous NO, MDA, O
conclusionsIn summary, our study innovatively proposes a mechanism model of how endogenous NO enhances alfalfa tolerance to water deficiency at the physiological and molecular levels. The novel candidate genes can give genetic resources for the subsequent molecular-assisted breeding of drought-resistant alfalfa crops.
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