Selenium improves physiological responses and nutrient absorption in wheat (<i>Triticum aestivum</i> L.) grown under salinity

Atarodi, B; Fotovat, Amir; Khorassani, Reza; Keshavarz, P.; Hawrylak-Nowak, Barbara

doi:10.1080/02772248.2018.1529235

Cited by 5 publications

(3 citation statements)

References 29 publications

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“…Furthermore, the synthesis and accumulation of soluble sugar, proline, and phenolic compounds are stimulated in response to biotic and abiotic stresses and are considered to be essential indices of the salt tolerance ability of plants. Additionally, the chlorophyll and total carotenoid contents are reduced in wheat leaves under salt conditions [ 19 ]. Likewise, considerable evidence reported by [ 20 , 21 ] and [ 22 ] has shown significant increases in the sugar, proline, and total phenolic contents as a consequence of salinity treatment in wheat.…”

Section: Introductionmentioning

confidence: 99%

Detection of genetic divergence among some wheat (Triticum aestivum L.) genotypes using molecular and biochemical indicators under salinity stress

Gowayed

El-Moneim

2021

PLoS ONE

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Wheat has remarkable importance among cereals in Egypt. Salt stress affects plant growth, development, and crop productivity. Therefore, salinity tolerance is an essential trait that must be incorporated in crops. This research aimed to investigate molecular and biochemical indicators and defence responses in seedlings of 14 Egyptian wheat genotypes to distinguish the most contrasting salt-responsive genotypes. Analysis of ISSR and SCoT markers revealed high polymorphism and reproducible fingerprinting profiles for evaluating genetic variability within the studied genotypes. The HB-10 and SCoT 1 primers had the highest values for all the studied parameters. All the tested primers generated a set of 66 polymorphic bands among tolerant and sensitive genotypes. The transcript profiles of eight TaWRKY genes showed significant induction under the salinity treatments. Moreover, the expression of TaWRKY6 for genotypes Sids 14 and Sakha 93 sharply increased and recorded the highest expression, while the expression of TaWRKY20 for Misr 1 recorded the lowest expression. Under salt stress, the total sugar, proline, and phenolic contents increased significantly, while the chlorophyll content decreased significantly. Additionally, five peroxidase and polyphenol oxidase isoforms were observed in treated leaves and clustered into five different patterns. Some isoforms increased significantly as salinity levels increased. This increase was clearer in salt-tolerant than in salt-sensitive genotypes. Eighteen protein bands appeared, most of which were not affected by salinity compared with the control, and specific bands were rare. Generally, the Sids 14, Sakha 93, Sohag 4, and Gemmeiza 12 genotypes are considered salt tolerant in comparison to the other genotypes.

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Section: Introductionmentioning

confidence: 99%

Detection of genetic divergence among some wheat (Triticum aestivum L.) genotypes using molecular and biochemical indicators under salinity stress

Gowayed

El-Moneim

2021

PLoS ONE

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“…Selenium at optimal concentration positively regulated the synthesis of important osmoprotectants such as Pro and sugars [106]. Increased level of important compatible solute Pro was also observed in Triticum aestivum in response to Se under Cd stress [24]. Osmolytes play an important part in the maintenance of osmoregulation in plants under various stress conditions.…”

Section: Selenium Interaction With Osmolytes Under Heavy Metal Stressmentioning

confidence: 96%

“…under metal stress [21,22]. Nanoparticle treatment of Se also regulates the accumulation of Pro, GB, and sugars in response to HMs stress [23,24]. These amino acids act as osmolytes that help in developing tolerance to different stress conditions by maintaining their osmotic balance.…”

Section: Introductionmentioning

confidence: 99%

Appraisal of Functions and Role of Selenium in Heavy Metal Stress Adaptation in Plants

Asgher¹,

Rehaman²,

Islam³

et al. 2023

Preprint

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Heavy metals (HMs) contamination is one of the main among abiotic factors affecting crop productivity and also threatens human health via consuming metal contaminated crops as a food source. Over the past few years, HMs have drawn a lot of attention due to their increased use for commercial purposes and their harmful effects on plants and other life forms, thus threatening human survival. However, in recent years, several methods have been adopted to combat the harsh effects of HMs. After phytohormones, use of mineral nutrients such as selenium (Se) in the prevention of HM stress has been explored by the researchers more recently. Selenium is an important micronutrient widely known for its antioxidant properties in both plants and animals. Exogenous Se inhibits metal uptake and its translocation and also improves the antioxidant system, thus imparts resistance to HM toxicity in plants. Moreover, Se also regulates the production of various osmolytes in cells that helps in developing cell osmolarity. Selenium also induces the production of different types of secondary metabolites (SMs) that are also involved in plant's secondary defense mechanisms to different stresses. Uptake of mineral nutrients is a vital process for plant growth and development, which is also positively correlated with Se under metalloid toxicity. However, in order to understand the exact mechanism of Se in HM tolerance, different metabolic processes stimulated by Se and their pathways need to be explored. Hence, this review focuses on the role of Se on nutritional status, antioxidants metabolism, interaction with phytohormones and its role in the regulation of various genes involved in Se induced HM tolerance. Thus, this study will help researchers in the future for the improvement of HM tolerance via Se application in plants.

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Biological Activity of Selenium in Plants: Physiological and Biochemical Mechanisms of Phytotoxicity and Tolerance

Hawrylak-Nowak

2022

Sustainable Plant Nutrition in a Changing World

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Selenium improves physiological responses and nutrient absorption in wheat (Triticum aestivum L.) grown under salinity

Cited by 5 publications

References 29 publications

Detection of genetic divergence among some wheat (Triticum aestivum L.) genotypes using molecular and biochemical indicators under salinity stress

Detection of genetic divergence among some wheat (Triticum aestivum L.) genotypes using molecular and biochemical indicators under salinity stress

Appraisal of Functions and Role of Selenium in Heavy Metal Stress Adaptation in Plants

Biological Activity of Selenium in Plants: Physiological and Biochemical Mechanisms of Phytotoxicity and Tolerance

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