Shahin Imran^1,2,*, Md. Asif Mahamud³, Newton Chandra Paul¹, Prosenjit Sarker⁴, Md. Tahjib-Ul-Arif⁵, Nazmul Islam⁵, Mohammad Saidur Rhaman⁶, Saleh H. Salmen⁷, Sulaiman Ali Alharbi⁷, Mohammad Javed Ansari⁸, Mohammed Ali Alshehri⁹, Akbar Hossain^10,*

Phyton-International Journal of Experimental Botany, Vol.93, No.9, pp. 2251-2266, 2024, DOI:10.32604/phyton.2024.055736 - 30 September 2024

Abstract Soybean (Glycine max) is a potential legume crop, but it cannot thrive in mild salinity. Salicylic acid (SA) is a renowned plant growth hormone that improves tolerance to saline conditions. Hence, the study was performed to understand the functions of priming seeds and supplementation of SA in modulating salt tolerance in soybean seedlings. When exposed to salt stress, soybean seedlings showed considerably higher contents of hydrogen peroxide (H₂O₂) and malondialdehyde (MDA) while having decreased germination and growth factors, water contents, and photosynthetic pigments. The germination rate, final germination percentage, germination index, germination energy, and seed vigor index… More >

Song Lu¹, Jianjun Guo², Richard Ansah Herman¹, Xinyi Wu¹, Lin Ma¹, Guohua Wu^1,*

Journal of Renewable Materials, Vol.12, No.6, pp. 1043-1055, 2024, DOI:10.32604/jrm.2024.051767 - 02 August 2024

Abstract Silk is widely used in the production of high-quality textiles. At the same time, the amount of silk textiles no longer in use and discarded is increasing, resulting in significant waste and pollution. This issue is of great concern in many countries where silk is used. Hydrogen peroxide as a naturally occurring compound is an important indicator of detection in both biology and the environment. This study aims to develop a composite fiber with hydrogen peroxide-sensing properties using discarded silk materials. To achieve this goal, firstly, polydopamine (PDA) was used to encapsulate the ZnFeO NPs… More > Graphic Abstract

Huwida A. A. Abdel-Kader¹, Naeima Yousef¹, Mohammad Anwar Hossain^2,*, Mona F. A. Dawood^1,*

Phyton-International Journal of Experimental Botany, Vol.92, No.7, pp. 1955-1974, 2023, DOI:10.32604/phyton.2023.028583 - 29 May 2023

Abstract The extensive use of nanoparticles (NPs) in diverse applications causes their localization to aquatic habitats, affecting the metabolic products of primary producers in aquatic ecosystems, such as algae. Synthesized calcium oxide nanoparticles (CaO NPs) are of the scarcely studied NPs. Thus, the current work proposed that the exposure to CaO NPs may instigate metabolic pathway to be higher than that of normally growing algae, and positively stimulate algal biomass. In this respect, this research was undertaken to study the exposure effect of CaO NPs (0, 20, 40, 60, 80, and 100 µg mL⁻¹ ) on the… More >

RAFAT SABA^*, MOHD. KASHIF AZIZ, GHULAM MUSTAFA, ARPIT SRIVASTAVA, SHEKHAR SRIVASTAVA^*

Journal of Polymer Materials, Vol.38, No.1-2, pp. 153-166, 2021, DOI:10.32381/JPM.2021.38.1-2.12

Abstract We have synthesized Schiff’s base of Fe₃ O₄ @chitosan with 4,4'-diselenobisbenzaldehyde (Fe₃O₄ @CSSe) composite and used it as acatalyst for the oxidation of sulfides, having some advantageous properties such as eco-friendly, cost-effective and highly efficient magnetic biocatalyst of selenium. The synthesized schiff’s base was characterized by different physical characterization techniques such as Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), Vibrating sample magnetometer (VSM)and Dynamic light scattering (DLS). Further, we used the resulting schiff’s base as a catalyst in the presence of a green oxidant (H₂ O₂ ) to oxidize sulfides to corresponding sulfoxides at room temperature. It More >

Yu-Jyun Chen, Xian-Hao Yang, Yun-Yang Chao^*

Phyton-International Journal of Experimental Botany, Vol.90, No.5, pp. 1477-1489, 2021, DOI:10.32604/phyton.2021.015719 - 27 May 2021

Abstract Nanosilver (10⁻⁹ m) refers to particles comprising 20–15,000 silver atoms, exhibiting high stability and specific surface area. At present, nanosilver has been used in agricultural cultivation and production. This study examined the effects of nanosilver on growth and development of rice root systems. Study results showed that fresh weight of rice belowground organs and root length both increased significantly by 5% and 25%, respectively, after rice radicles were treated with 2 ppm of nanosilver for three days. However, the H₂O₂ level reached its peak at 2 days from treatment, but the activities of the antioxidant enzymes… More >

Aarón Giovanni Munguía-Rodríguez^1,2, José López-Bucio¹, Gerardo Rangel Sánchez^1,2, León Francisco Ruiz-Herrera¹, Yazmín Carreón-Abud², Miguel Martínez-Trujillo^2,*

Phyton-International Journal of Experimental Botany, Vol.89, No.1, pp. 35-43, 2020, DOI:10.32604/phyton.2020.07835 - 01 March 2020

Abstract The post-embryonic growth of the Arabidopsis thaliana root system can be modified by different types of stress, such as sublethal concentrations of metals, which may induce the production of reactive oxygen species (ROS). In this study, the effects of different concentrations of potassium chromate (K_₂CrO₄) on the distribution and relative quantity of hydrogen peroxide (H₂O₂) were determined in primary and adventitious roots in A. thaliana HyPer line seedlings. This line has a biosensor that specifically reports H₂O₂ levels within tissues as fluorescence. Primary root growth was inhibited at 100 μM Cr (VI); in contrast, adventitious root formation was induced… More >

Darío E. IGLESIAS^*, Silvina S. BOMBICINO, Alberto BOVERIS, Laura B. VALDEZ

BIOCELL, Vol.40, No.1, pp. 27-30, 2016, DOI:10.32604/biocell.2016.40.027

Abstract Complex III plays a central role in the mitochondrial respiratory chain transferring electrons from ubiquinol to cytochrome c and pumping protons to the intermembrane space, contributing to the protonmotive force. Furthermore, complex III can act as a source of O₂ •- in the presence of ubiquinol and antimycin, an expermiental condition in which the oxidation of the cytochrome b hemes is blocked. The O₂ •- dismutation catalyzed by superoxide dismutase produces H₂O₂, a known second messenger in redox signalling. Results from our laboratory have shown that NO, released from GSNO or from SPER -NO or generated… More >

NÉSTOR CURVETTO1^1,2, PABLO MARINANGELI^1,2, GABRIELA MOCKEL²

BIOCELL, Vol.30, No.3, pp. 497-500, 2006, DOI:10.32604/biocell.2006.30.497

Abstract The micropropagation of Lilium longiflorum requires adequate equipment which may not be afforded by small laboratories or producers. In this work we compared traditional methodology with a protocol that included easily available elements to sterilize materials and culture media, together with addition of hydrogen peroxide (H₂O₂ ) into the nutrient media as chemical sterilizer. A series of H₂O₂ concentrations (0.005, 0.010, 0.015 and 0.020% p/v) was used to control contamination during in vitro establishment and subsequent cultivation; the explant organogenic response was also examined and compared to the traditional micropropagation technique. The level of culture contamination was within… More >