Exogenous nitric oxide alleviates sulfur deficiency-induced oxidative damage in tomato seedlings

Management of Heat Stress in Tomato Seedlings under Arid and Semi-Arid Regions: A Review

“…Under cadmium stress, applied NO could promote the tomato growth by modulating the metabolism of osmolytes, ascorbate-glutathione cycle enzymes and antioxidants (Ahmad et al, 2018). The ameliorative role of nitric oxide has been reported also under nutrient stress like copper stress (Dong et al, 2013 andWang et al, 2015), sulfur stress (Siddiqui et al, 2020), boron (Kaya and Ashraf, 2015) and heavy metals (Wei et al, 2020).…”

“…Nitric oxide (NO) is"redox-related signaling molecule" and a "gaseous free radical", which could regulate the growth of plants and its development (Gupta et al, 2019). This molecule also could support cultivated plants against abiotic stress because NO can regulate a lot of proteins activity and related-genes expression under stress (Siddiqui et al, 2020 andWei et al, 2020). It is reported that, NO could participate in the plant mechanism towards abiotic stress like heat stress and other abiotic stresses.…”

“…It is reported that, NO could participate in the plant mechanism towards abiotic stress like heat stress and other abiotic stresses. This NO can abate the deleterious effects of different stresses through the biosynthesis activation of thiol (R-SH) compounds like glutathione and phytochelatin (Siddiqui et al, 2020). It is reported by many researchers that nitric oxide could ameliorate the harmful effects of many stresses on tomato seedlings such as salt stress through increasing theseenzymatic antioxidants (peroxidase, catalase, glutathione reductase, superoxide dismutase and ascorbate peroxidase) and photosynthetic pigment as well as decreasing the content of malondialdehyde and reactive oxygen species (Siddiqui et al, 2017).…”

“…4 (2020) NEAMA ABDALLA et al the world. Due to its high nutritional value, tomato is considered the second favored and consumed vegetable crop after potato in the world (Siddiqui et al, 2020). Tomato fruits have the abundant nutrients (e.g., copper, selenium, manganese and zinc),antioxidants (lycopene and β-carotene), active components (e.g., poly-phenols and carotenoids), nutritional organic acids (ascorbic, citric and malic acid)and vitaminslike C, E and A .…”

“…Tomato fruits have the abundant nutrients (e.g., copper, selenium, manganese and zinc),antioxidants (lycopene and β-carotene), active components (e.g., poly-phenols and carotenoids), nutritional organic acids (ascorbic, citric and malic acid)and vitaminslike C, E and A . The tomato fruit is called "the poor man's orange" because these fruits are rich in vitamin C, malic and citric acids as well as its low price (Alsuhaibani, 2018).The global production of tomato was estimated to be approximately 182 million tons in 2017 (FAOSTAT, 2019).The cultivation and production of tomato may decrease due to the stress of unfavorable climatic conditions or climate changes and the imbalance supply of nutrients (Naz et al, 2019 andSiddiqui et al, 2020). This stress may affect different biochemical and physiological parameters of tomato plants.…”