The modified qualities of basil plants by selenium and/or ascorbic acid

Abstract

IntroductionAscorbic acid (AsA) is one of the most critical low molecular weight antioxidants and has control over crucial processes, including the cell cycle and cell wall expansion (Noctor and Foyer, 1998). Ascorbic acid, a water soluble compound, is known as a major redox buffer, one of the most abundant antioxidants, and a required cofactor for several enzymes. Its multiple implications in various critical aspects of key physiological processes like cell division, growth, signal transduction, photosynthesis, and hormone biosynthesis are well documented (Gallie, 2013). Ascorbate is regarded as the first line of defense against detrimental effects of active oxygen species (AOS), and protects plant cells from various abiotic and biotic oxidative stressors (Suza et al., 2010). It has been stated that foliarly supplemented ascorbate may be an effective treatment for improving tolerance in stress exposed plants in arid and semi-arid regions (Dolatabadian et al., 2009). In addition, it has been proposed that various crucial compounds, including phenolics, carotenoids, tocopherols, chlorophyll, and ascorbic acid all possess a key role in the prevention of different diseases related to oxidative stress such as cardiovascular diseases, cancer, atherosclerosis, inflammation, neurodegenerative diseases, diabetes, and other chronic diseases (Šircelj et al., 2010).

Synergistic effect of selenium and UV-B radiation in enhancing antioxidant level of wheatgrass grown from selenium rich wheat

“…In higher plants, although selenium has not yet been classified as an essential element, its role has been considered to be beneficial under stress (Terry et al, ). Our observations of Se enhanced TPC content in wheatgrass is also supported by (Oraghi Ardebili, Oraghi Ardebili, Jalili, & Safiallah, ) on basil plant ( Ocimum basilicum ) where exogenously applied Se significantly stimulated the enzyme phenylalanine ammonia lyase activity and thus increased soluble phenol content as compared with control. Table clearly indicated that, Se and UV‐B showed synergistic effect with total phenolic content increasing significantly w.r.t.…”

Potential benefits and toxicity of nanoselenium and nitric oxide in peppermint

“…The modifications in the photosynthetic pigments found in the nSe and/or NO-treated plants could be caused by the possible changes in the nutrition process, redistribution of minerals, and/or the status of antioxidant system. Se-provoked alterations in the different photosynthesis-related characteristics have been reported in the various plant species, like potato (Germ et al, 2007) and basil (Ardebili et al, 2015). Se toxicity have been attributed to its similarity to sulfur (S), thereby producing nonfunctional proteins and enzymes (Pilon-Smits and Quinn, 2010;Lindblom et al, 2013).…”

“…The dramatic increase in the proline content as a multifunctional cytoprotective agent may result from the nSe and/or NO applications. The Semediated modification in the amino acid metabolism has been introduced as a critical mechanism by which it may enhance plant resistance to stress condition (Ježek et al, 2011;Ardebili et al, 2015). Moreover, the modification in the nitrogen assimilation and metabolism may be considered as an alternative way to dissipate the excess energy, thereby reducing photoinhibition process and improving cellular protection.…”

“…The alleviated toxicity sign of nSe of 20 mg l -1 by NO may be partially attributed to the dramatic increases in the peroxidase activity, a crucial antioxidant enzyme. In plants, Se-induced antioxidant system has been regarded as a main mechanism contribute to its protective roles against various abiotic stress conditions (Feng et al, 2013;Ardebili et al, 2014;Ardebili et al, 2015).…”

“…Otherwise, it seems to be a benefit for many plants, especially hyper-accumulators (El-Ramady et al, 2016). Thus, the functional significance of Se may lead to enhance plant growth, modify cellular physiology, and/or improve plant resistance to abiotic and biotic stress conditions (Ardebili et al, 2014;Ardebili et al, 2015;El-Ramady et al, 2016).…”