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Atmospheric nitrogen oxides (NO), hydrogen sulphide (HS) and carbon monoxide (CO): Boon or Bane for plant metabolism and development?
Environ Pollut
January 2025
Plant Physiology and Biochemistry Laboratory, Department of Botany, University of Delhi, Delhi 110007, India. Electronic address:
Urban air pollution has been a global challenge world-wide. While urban vegetation or forest modelling can be useful in reducing the toxicities of the atmospheric gases by their absorption, the surge in gaseous pollutants negatively affects plant growth, thereby altering photosynthetic efficiency and harvest index. The present review analyses our current understanding of the toxic and beneficial effects of atmospheric nitrogen oxides (NO), hydrogen sulphide (HS) and carbon monoxide (CO) on plant growth and metabolism.
View Article and Find Full Text PDFThe Antimicrobial Effects of Nitric Oxide: A Narrative Review.
Nitric Oxide
January 2025
Harvard Medical School, Boston, MA, USA; Division of Pediatric Critical Care Medicine, Massachusetts General Hospital for Children, Boston, MA, USA. Electronic address:
Nitric oxide (NO) is a versatile endogenous molecule with multiple physiological roles, including neurotransmission, vasodilation, and immune regulation. As part of the immune response, NO exerts antimicrobial effects by producing reactive nitrogen species (RNS). These RNS combat pathogens via mechanisms such as DNA deamination, S-nitrosylation of thiol groups, and lipid peroxidation, leading to disruptions in microbial cell membranes and vital protein functions.
View Article and Find Full Text PDFCognitive impairment and dementia have long been recognized as growing public health threats. Studies have found that air pollution is a potential risk factor for dementia, but the literature remains inconclusive. This study aimed to evaluate the association between three major air pollutants (i.
View Article and Find Full Text PDFFunctional interaction of melatonin with gasotransmitters and ROS in plant adaptation to abiotic stresses.
Front Plant Sci
December 2024
Institute of Food Biotechnology and Genomics, National Academy of Sciences of Ukraine, Kyiv, Ukraine.
Melatonin is considered a multifunctional stress metabolite and a novel plant hormone affecting seed germination, root architecture, circadian rhythms, leaf senescence, and fruit ripening. Melatonin functions related to plant adaptation to stress stimuli of various natures are considered especially important. One of the key components of melatonin's stress-protective action is its ability to neutralise reactive oxygen species (ROS) and reactive nitrogen species directly.
View Article and Find Full Text PDFSelective oxidation of ammonium to dinitrogen by a novel catalytic ozonation system: Regulating the N selectivity by sulfite.
Chemosphere
February 2025
Laboratory of Environmental Technology, INET, Tsinghua University, Beijing, 100084, PR China.
The selective oxidation of NH-N into dinitrogen (N) is still a challenge. Currently, traditional advanced oxidation processes often involve in the chlorine free radicals to increase the selectivity of NH-N oxidation products towards N but is usually accompanied by the production of many toxic disinfection by-product. Herein, we reported a novel catalytic ozonation system (UV/O/MgO/NaSO) for selective NH-N oxidation based on the reducing capability and photochemical properties of NaSO.
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