Nitric oxide and hydrogen sulfide: an indispensable combination for plant functioning

Mishra, Vipul; Singh, Pooja; Tripathi, Durgesh Kumar; Corpas, Francisco J.; Singh, Vijay Pratap

doi:10.1016/j.tplants.2021.07.016

Cited by 109 publications

(60 citation statements)

References 150 publications

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“…It has been widely reported that NO plays a crucial role in regulating various plant physiological processes [100]. Previous studies found that Cd treatment increased NO production, which promoted Cd accumulation by the IRT1 up-regulation [101,102].…”

Section: Other Regulators Are Involved In Melatonin-mediated CD Tolerancementioning

confidence: 97%

“…Acting as a signaling molecule, NO interacts with other molecules (H 2 O 2 , CO, and H 2 S) to mediate plant growth and development, as well as abiotic stress responses [100]. Among the molecules, H 2 S is also involved in almost all physiological plant processes [27,100]. To date, there is considerable research on the role of NO in melatonin-modulated plant abiotic stress tolerance.…”

Section: A Possible Role For H 2 S In Melatonin-mediated Tolerance Against CD Stressmentioning

confidence: 99%

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Melatonin Confers Plant Cadmium Tolerance: An Update

Wang

Xiao

et al. 2021

IJMS

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Cadmium (Cd) is one of the most injurious heavy metals, affecting plant growth and development. Melatonin (N-acetyl-5-methoxytryptamine) was discovered in plants in 1995, and it is since known to act as a multifunctional molecule to alleviate abiotic and biotic stresses, especially Cd stress. Endogenously triggered or exogenously applied melatonin re-establishes the redox homeostasis by the improvement of the antioxidant defense system. It can also affect the Cd transportation and sequestration by regulating the transcripts of genes related to the major metal transport system, as well as the increase in glutathione (GSH) and phytochelatins (PCs). Melatonin activates several downstream signals, such as nitric oxide (NO), hydrogen peroxide (H2O2), and salicylic acid (SA), which are required for plant Cd tolerance. Similar to the physiological functions of NO, hydrogen sulfide (H2S) is also involved in the abiotic stress-related processes in plants. Moreover, exogenous melatonin induces H2S generation in plants under salinity or heat stress. However, the involvement of H2S action in melatonin-induced Cd tolerance is still largely unknown. In this review, we summarize the progresses in various physiological and molecular mechanisms regulated by melatonin in plants under Cd stress. The complex interactions between melatonin and H2S in acquisition of Cd stress tolerance are also discussed.

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Section: Other Regulators Are Involved In Melatonin-mediated CD Tolerancementioning

confidence: 97%

Section: A Possible Role For H 2 S In Melatonin-mediated Tolerance Against CD Stressmentioning

confidence: 99%

Melatonin Confers Plant Cadmium Tolerance: An Update

Wang

Xiao

et al. 2021

IJMS

View full text Add to dashboard Cite

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“…Researchers found that, after treatment with NaCl, the accumulation of H 2 S in tomato roots occurred later than the accumulation of NO, and that NO could increase the expression of the H 2 S synthesis gene (L-DES) and H 2 S production, whereas H 2 S could not induce the accumulation of NO. H 2 S and NO have shown complex interactions when regulating other physiological processes [98]. Therefore, the relationship between H 2 S and NO in plant root growth regulation under salt stress needs more research and discussion.…”

Section: Salinitymentioning

confidence: 99%

The Role of Hydrogen Sulfide in Plant Roots during Development and in Response to Abiotic Stress

Chen

et al. 2022

IJMS

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Hydrogen sulfide (H2S) is regarded as a “New Warrior” for managing plant stress. It also plays an important role in plant growth and development. The regulation of root system architecture (RSA) by H2S has been widely recognized. Plants are dependent on the RSA to meet their water and nutritional requirements. They are also partially dependent on the RSA for adapting to environment change. Therefore, a good understanding of how H2S affects the RSA could lead to improvements in both crop function and resistance to environmental change. In this review, we summarized the regulating effects of H2S on the RSA in terms of primary root growth, lateral and adventitious root formation, root hair development, and the formation of nodules. We also discussed the genes involved in the regulation of the RSA by H2S, and the relationships with other signal pathways. In addition, we discussed how H2S regulates root growth in response to abiotic stress. This review could provide a comprehensive understanding of the role of H2S in roots during development and under abiotic stress.

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“…H 2 S may act as a downstream component of NO in ethylene-induced stomatal closure in Vicia faba L. [ 44 ]. Also, NO represented downstream of H 2 S in ABA-triggered stomatal closure, which may suggest a paradoxical relationship between H 2 S and NO under drought condition [ 45 ]. As for osmotic stress in wheat seedlings, the application of exogenous NO markedly improved H 2 S synthesis enzymes LCD and DCD, as well as enhancing the activity of O -acetylserine (thiol)lyase (OAS-TL) to modulate Cys homeostasis [ 46 ].…”

Section: Crosstalk Between H 2 S and No In Response To Abiotic Stressesmentioning

confidence: 99%

Hydrogen Sulfide in Plants: Crosstalk with Other Signal Molecules in Response to Abiotic Stresses

Wang

Deng

Liu

et al. 2021

IJMS

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Hydrogen sulfide (H2S) has recently been considered as a crucial gaseous transmitter occupying extensive roles in physiological and biochemical processes throughout the life of plant species. Furthermore, plenty of achievements have been announced regarding H2S working in combination with other signal molecules to mitigate environmental damage, such as nitric oxide (NO), abscisic acid (ABA), calcium ion (Ca2+), hydrogen peroxide (H2O2), salicylic acid (SA), ethylene (ETH), jasmonic acid (JA), proline (Pro), and melatonin (MT). This review summarizes the current knowledge within the mechanism of H2S and the above signal compounds in response to abiotic stresses in plants, including maintaining cellular redox homeostasis, exchanging metal ion transport, regulating stomatal aperture, and altering gene expression and enzyme activities. The potential relationship between H2S and other signal transmitters is also proposed and discussed.

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Nitric oxide and hydrogen sulfide: an indispensable combination for plant functioning

Cited by 109 publications

References 150 publications

Melatonin Confers Plant Cadmium Tolerance: An Update

Melatonin Confers Plant Cadmium Tolerance: An Update

The Role of Hydrogen Sulfide in Plant Roots during Development and in Response to Abiotic Stress

Hydrogen Sulfide in Plants: Crosstalk with Other Signal Molecules in Response to Abiotic Stresses

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