Crosstalk between melatonin and nitric oxide in plant development and stress responses

He, Hua; He, Long-Fei

doi:10.1111/ppl.13143

Cited by 48 publications

(32 citation statements)

References 65 publications

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“…For example, exogenous application of melatonin increased NO production in alfalfa [110] and Arabidopsis [111]. It is believed that the interaction of NO and melatonin is through a cGMP-dependent pathway [112]. Although melatonin has been shown to positively regulate NOS-mediated NO biosynthesis in neuronal cells [113], as well as inducing mitochondrial NOS mRNA expression and protein synthesis [114], this molecule may suppress NOS activity during nitrosative stress [110].…”

Section: Synergistic Relationship Of No With Other Signaling Moleculesmentioning

confidence: 99%

Plant Nitric Oxide Signaling under Drought Stress

Lau

Hamdan

Pua

et al. 2021

Plants

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Water deficit caused by drought is a significant threat to crop growth and production. Nitric oxide (NO), a water- and lipid-soluble free radical, plays an important role in cytoprotection. Apart from a few studies supporting the role of NO in drought responses, little is known about this pivotal molecular amendment in the regulation of abiotic stress signaling. In this review, we highlight the knowledge gaps in NO roles under drought stress and the technical challenges underlying NO detection and measurements, and we provide recommendations regarding potential avenues for future investigation. The modulation of NO production to alleviate abiotic stress disturbances in higher plants highlights the potential of genetic manipulation to influence NO metabolism as a tool with which plant fitness can be improved under adverse growth conditions.

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Section: Synergistic Relationship Of No With Other Signaling Moleculesmentioning

confidence: 99%

Plant Nitric Oxide Signaling under Drought Stress

Lau

Hamdan

Pua

et al. 2021

Plants

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“…Moreover, melatonin shows interaction with different phytohormones and signalling molecules [ 17 , 21 ]. He and He [ 22 ] have reported melatonin and nitric oxide (NO) may actuate different plant physiological responses through their association under both normal or stress conditions and hydrogen sulfide (H 2 S) communicates with ROS and NO influencing the two ROS and responsive nitrogen species (RNS) uptake [ 23 , 24 ]. Mukherjee and Bhatla [ 25 ] found that both H 2 S and melatonin ameliorated salt stress mediated decrease in tomato growth and exogenous melatonin modulated early H 2 S signalling.…”

Section: Introductionmentioning

confidence: 99%

The Crosstalk of Melatonin and Hydrogen Sulfide Determines Photosynthetic Performance by Regulation of Carbohydrate Metabolism in Wheat under Heat Stress

Iqbal

Fatma

Gautam

et al. 2021

Plants

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Photosynthesis is a pivotal process that determines the synthesis of carbohydrates required for sustaining growth under normal or stress situation. Stress exposure reduces the photosynthetic potential owing to the excess synthesis of reactive oxygen species that disturb the proper functioning of photosynthetic apparatus. This decreased photosynthesis is associated with disturbances in carbohydrate metabolism resulting in reduced growth under stress. We evaluated the importance of melatonin in reducing heat stress-induced severity in wheat (Triticum aestivum L.) plants. The plants were subjected to 25 °C (optimum temperature) or 40 °C (heat stress) for 15 days at 6 h time duration and then developed the plants for 30 days. Heat stress led to oxidative stress with increased production of thiobarbituric acid reactive substances (TBARS) and hydrogen peroxide (H2O2) content and reduced accrual of total soluble sugars, starch and carbohydrate metabolism enzymes which were reflected in reduced photosynthesis. Application of melatonin not only reduced oxidative stress through lowering TBARS and H2O2 content,augmenting the activity of antioxidative enzymes but also increased the photosynthesis in plant and carbohydrate metabolism that was needed to provide energy and carbon skeleton to the developing plant under stress. However, the increase in these parameters with melatonin was mediated via hydrogen sulfide (H2S), as the inhibition of H2S by hypotaurine (HT; H2S scavenger) reversed the ameliorative effect of melatonin. This suggests a crosstalk of melatonin and H2S in protecting heat stress-induced photosynthetic inhibition via regulation of carbohydrate metabolism.

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“…MET acts together with NO in plant growth and mediates plant abiotic stress tolerance through the improvement of the antioxidant system [79] (Figure 4).…”

Section: No-plant Mediated Stress Response and Its Relationship With Metmentioning

confidence: 99%

ROS and NO Regulation by Melatonin Under Abiotic Stress in Plants

2020

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Abiotic stress in plants is an increasingly common problem in agriculture, and thus, studies on plant treatments with specific compounds that may help to mitigate these effects have increased in recent years. Melatonin (MET) application and its role in mitigating the negative effects of abiotic stress in plants have become important in the last few years. MET, a derivative of tryptophan, is an important plant-related response molecule involved in the growth, development, and reproduction of plants, and the induction of different stress factors. In addition, MET plays a protective role against different abiotic stresses such as salinity, high/low temperature, high light, waterlogging, nutrient deficiency and stress combination by regulating both the enzymatic and non-enzymatic antioxidant defense systems. Moreover, MET interacts with many signaling molecules, such as reactive oxygen species (ROS) and nitric oxide (NO), and participates in a wide variety of physiological reactions. It is well known that NO produces S-nitrosylation and NO2-Tyr of important antioxidant-related proteins, with this being an important mechanism for maintaining the antioxidant capacity of the AsA/GSH cycle under nitro-oxidative conditions, as extensively reviewed here under different abiotic stress conditions. Lastly, in this review, we show the coordinated actions between NO and MET as a long-range signaling molecule, regulating many responses in plants, including plant growth and abiotic stress tolerance. Despite all the knowledge acquired over the years, there is still more to know about how MET and NO act on the tolerance of plants to abiotic stresses.

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Crosstalk between melatonin and nitric oxide in plant development and stress responses

Cited by 48 publications

References 65 publications

Plant Nitric Oxide Signaling under Drought Stress

Plant Nitric Oxide Signaling under Drought Stress

The Crosstalk of Melatonin and Hydrogen Sulfide Determines Photosynthetic Performance by Regulation of Carbohydrate Metabolism in Wheat under Heat Stress

ROS and NO Regulation by Melatonin Under Abiotic Stress in Plants

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