ArticleScientific reports2025
Nitric oxide reduces freezing stress damage on leaf pigments, photosynthetic apparatus, and chlorophyll fluorescence of broad bean (Vicia faba L.).
Article in Scientific reports, 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
Freezing stress is one of the abiotic stresses limiting the growth and development of fall crops, which are an important part of sustainable food production worldwide. To investigate the effect of foliar spraying of nitric oxide (NO) on reducing freezing stress damage in broad bean plants, an experiment was conducted under a controlled environment in 2022. NO at three levels (control [distilled water], 50, and 100 µM) and freezing stress at five levels (0, -4, -8, -12, and -16 °C; 2 h) were considered as the experimental treatments. The results showed that freezing stress reduced plant survival rate; however, 50 µM NO led to a 92% increase in survival rate compared with the control at -12 °C. 50 µM NO also increased the shoot and root dry weight of plants exposed to freezing stress. NO positively affected the net photosynthetic rate (A
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