HAIYANG CHEN^1,2,#, JINGYAO SU^1,#, DANYANG CHEN^1,#, YUYE DU¹, RUILIN ZHENG¹, QINGLIN DENG², QIANQIAN DU³, BING ZHU^1,*, YINGHUA LI^1,*

BIOCELL, Vol.46, No.10, pp. 2267-2273, 2022, DOI:10.32604/biocell.2022.020218

Abstract At present, Hepatocarcinoma is one of the main causes of tumor related death all over the world. However, there are still many clinical restrictions on the treatment of liver cancer. Recently, L-Selenocystine has been shown to be a novel treatment for tumors, especially human glioma cells. But, the mechanism of L-Selenocystine against hepatocellular carcinoma remains unclear. Therefore, the main objective of this study was to investigate the effects of L-Selenocystine on HepG2 cell proliferation and activation of reactive oxygen species (ROS) mediated signaling pathway. L-Selenocystine can significantly inhibit HepG2 cell proliferation by activating caspase-3 and cleaving PARP to induce apoptosis.… More >

Misbah Naz¹, Rubab Shabbir^2,17, Krishan K. Verma³, Anshu Rastogi⁴, Vishnu D. Rajput⁵, Talha Javed^2,6, Muhammad Ammar Raza⁷, Kainat Asif⁸, Muhammad Aamir Iqbal⁹, Muhammad Imran¹⁰, Mohammad Sohidul Islam¹¹, Khalid Rehman Hakeem^12,13,*, Mehmet Firat Baran¹⁴, Ayman EL Sabagh^15,16,*

Phyton-International Journal of Experimental Botany, Vol.91, No.5, pp. 915-927, 2022, DOI:10.32604/phyton.2022.018688

Abstract

Under changing climate, trace elements like selenium (Se) have emerged as vital constituent of agro-ecosystems enabling crop plants to off-set the adverse effects of suboptimal growth conditions. The available form of selenium is important for boosting its bioavailability to crop plants having varied agro-botanical traits and root architectural systems. As compared to selenite, the selenate has a weaker soil bonding, higher absorption in the soil solution which results in a comparatively absorption by plant roots. Various factors including dry climate, high pH, optimal ambient air temperature, less accumulation of water, and low concentration of organic matter in the soil tend… More >

Hesham F. Alharby¹, Mirza Hasanuzzaman^2,*, Hassan S. Al-Zahrani¹, Khalid Rehman Hakeem¹

Phyton-International Journal of Experimental Botany, Vol.90, No.2, pp. 373-388, 2021, DOI:10.32604/phyton.2021.013657

Abstract The mechanism of selenium (Se)-induced salt tolerance was studied in moderately sensitive soybean (Glycine max L.) plants. To execute this view, soybean plants were imposed with salt stress (EC 6 dS m⁻¹ ) applying NaCl. In other treatments, Se (0, 25, 50 and 75 µM Na₂SeO₄) was sprayed as co-application with that level of salt stress. Plant height, stem diameter, leaf area, SPAD value decreased noticeably under salt stress. Altered proline (Pro) level, together with decreased leaf relative water content (RWC) was observed in salt-affected plants. Salt stress resulted in brutal oxidative damage and increased the content of H₂O₂, MDA… More >

Yong Liang¹, Yuexing Chen², Dong Liu¹, Jianping Cheng³, Gang Zhao¹, Tzion Fahima⁴, Jun Yan^1,*

Phyton-International Journal of Experimental Botany, Vol.89, No.2, pp. 423-435, 2020, DOI:10.32604/phyton.2020.09339

Abstract Mineral nutrient malnutrition, especially deficiency in selenium (Se), affects the health of approximately 1 billion people worldwide. Wheat, a staple food crop, plays an important role in producing Se-enriched foodstuffs to increase the Se intake of humans. This study aimed to evaluate the effects of different Se application methods on grain yield and nutritional quality, grain Se absorption and accumulation, as well as 14 other trace elements concentrations in wheat grains. A sand culture experiment was conducted via a completely randomized 3 × 2 × 1 factorial scheme (three Se levels × two methods of Se application, foliar or soil… More >

Hassan AMA, EM Mostafa

Phyton-International Journal of Experimental Botany, Vol.85, pp. 262-269, 2016, DOI:10.32604/phyton.2016.85.262

Abstract Plants of Azolla caroliniana were treated with different selenium concentrations (0, 1, 2, 5, 7, 10 ppm) for seven days. Selenium (Se) content in Azolla plants increased significantly with increasing Se concentrations in the culture media up to 5 ppm. This indicated that Azolla plants were a good accumulator for Se. Selenium accumulation determined changes in Azolla biomass, doubling time and relative growth rates. Treatment of Azolla plants with low concentrations of Se (1 ppm) resulted in a significant increase in biomass. This was accompanied by a reduction in hydrogen peroxide and malondialdehyde (MDA) contents; the decrease percentages were 78%… More >

Hermosillo-Cereceres MA¹, E Sánchez¹, E Muñoz-Márquez¹, A Guevara-Aguilar¹, M García-Bañuelos¹, D Ojeda-Barrios²

Phyton-International Journal of Experimental Botany, Vol.83, pp. 347-352, 2014, DOI:10.32604/phyton.2014.83.347

Abstract Selenium (Se) is an essential element for many organisms, although in high concentrations it may become toxic, leading to the generation of reactive oxygen species (ROS). In this study, bean plants received different application rates of Se (0, 10, 20, 40, 80, and 160 µM) in the form of selenite and selenate to evaluate the activity of the detoxifying enzymes of H₂O₂. The results indicated that the activity of these enzymes in bean plants depended on the chemical form of Se: selenite at rates of 20 µM or greater diminished biomass and yield, increasing the activity of superoxide dismutase (SOD).… More >

J. Roszmann¹, Y.C. Liu¹, S. Dost^1,2, B. Lent¹, S. Grenier³, N. Audet³

FDMP-Fluid Dynamics & Materials Processing, Vol.5, No.3, pp. 231-244, 2009, DOI:10.3970/fdmp.2009.005.231

Abstract The article presents the results of a combined numerical and experimental study of the effect of rotating magnetic field on impurity transport in a zone refining system. An impurity (selenium) with a segregation coefficient close to unity was targeted. The three-zone system previously developed was used for experiments and numerical simulations. The numerical simulations were performed for tellurium (Te) and cadmium (Cd) molten zones, but the experiments could only be carried out for the Te-system. More >