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  • Open Access

    ARTICLE

    Highly Pure Water-Soluble Aspen Wood Hemicelluloses Derived by Catalytic Peracetic Treatment and Their Antioxidant and Flocculation Activity

    Valentina Sergeevna Borovkova1,2,*, Yuriy Nikolaevich Malyar1,2, Vladislav Alexandrovich Ionin1,2, Alexander Sergeevich Kazachenko1,2

    Journal of Renewable Materials, Vol.13, No.12, pp. 2281-2296, 2025, DOI:10.32604/jrm.2025.02025-0067 - 23 December 2025

    Abstract The valorization of plant biomass towards high-value chemicals is a global trend aimed at solving the problem of the huge accumulation of lignocellulosic waste. Plant polysaccharides are natural polymers that make up about 20% by weight of biomass, with a unique variety of structures and properties that depend on the type of raw materials and the method of their extraction. In this study, the effect of variability of the oxidative delignification process conditions in the «acetic acid-hydrogen peroxide-water-(NH4)6Mo7O24» on the extraction and properties of aspen (Populus tremula) wood hemicelluloses was investigated for the first time. The developed… More > Graphic Abstract

    Highly Pure Water-Soluble Aspen Wood Hemicelluloses Derived by Catalytic Peracetic Treatment and Their Antioxidant and Flocculation Activity

  • Open Access

    ARTICLE

    Enhancing anticancer, antioxidant, and antibacterial activities of chalcogen-based SnSe nanoparticles synthesized through the co-precipitation method

    H. A. Rather1,*, J. B. A. Wahid2, M. A. Dar3, L. Guganathan4, U. A. Dar5, P. Arularasan6, S. E. I. Yagoub7, L. G. Amin7

    Chalcogenide Letters, Vol.22, No.5, pp. 461-468, 2025, DOI:10.15251/CL.2025.225.461

    Abstract SnSe powdered nanoparticles (NPs) are prepared using the co-precipitation method. The powdered NPs were studied using X-ray diffraction (XRD), UV-absorbance spectroscopy, and scanning electron microscopy (SEM) characterization techniques. The XRD result indicates that NPs are orthorhombic with a crystalline size of 4 nm for TS-1, 6 nm for TS-2, and 13 nm for TS-3, respectively. The SEM images show the surface morphology of the prepared NPs is not fully spherical, but semi-flower-like. The optical properties of the powdered NPs are found by UV-Vis absorbance spectroscopy, in which the highest absorbance was found between 200 nm More >

  • Open Access

    ARTICLE

    Melatonin Enhances Antioxidant Defense and Physiological Stability in Grapevine (Vitis vinifera L.) Cultivars ‘Merlot’ and ‘Erciş’ under UV-B Stress

    Sena Yıldız1, Nurhan Keskin2,*, Birhan Kunter3, Harlene Hatterman-Valenti4, Ozkan Kaya4,5,*

    Phyton-International Journal of Experimental Botany, Vol.94, No.11, pp. 3471-3492, 2025, DOI:10.32604/phyton.2025.073180 - 01 December 2025

    Abstract Climate change-driven environmental stresses, particularly ultraviolet-B (UV-B) radiation, pose severe threats to grapevine (Vitis vinifera L.) productivity and physiological stability. This study investigated the protective role of melatonin in in vitro plantlets of two grapevine cultivars, ‘Merlot’ and ‘Erciş’, subjected to low (≈8.25 μW cm−2, 16 h) and high (≈33 μW cm−2, 4 h) UV-B exposure. Significant cultivar-specific responses were observed (p < 0.001). The ‘Erciş’ cultivar exhibited higher oxidative stress, with malondialdehyde (MDA) levels reaching 24.30 mmol g−1 FW in control plants compared with 14.91 ± 0.25 mmol g−1 FW in ‘Merlot’. Melatonin provided dose-dependent mitigation, reducing MDA to… More >

  • Open Access

    ARTICLE

    Valorisation of Northern Moroccan Centaurium erythraea: Targeted Phytochemistry, Antioxidant, Antimicrobial Efficacy and Drug Likeness Benchmarking

    Yousra Hammouti1,2,*, François Mesnard2, Oussama Khibech3, Mohamed Taibi1, Yousra Belbachir3, El Hassania Loukili4, Reda Bellaouchi5, Abdeslam Asehraou5, Mohamed Addi1,*

    Phyton-International Journal of Experimental Botany, Vol.94, No.11, pp. 3563-3583, 2025, DOI:10.32604/phyton.2025.071139 - 01 December 2025

    Abstract Centaurium erythraea Rafn (“Gosset El Haya”) has long been prized in North African folk medicine, yet Moroccan chemobiological data remain scarce. Ethanol extracts of northern Moroccan aerial parts were profiled by high-performance liquid chromatography (HPLC) and found rich in phenolics, dominated by 4-hydroxybenzoic acid (57.8%) and naringin (10.3%). The extract exhibited strong antioxidant power in the 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical-scavenging assay, with a half-maximal inhibitory concentration (IC50) of ≈74 µg mL−1, and a total antioxidant capacity (TAC) of ≈201 µg mL−1 and selective antimicrobial activity, sharply inhibiting Aspergillus niger, Penicillium digitatum, and Rhodotorula glutinis while sparing Staphylococcus aureus. In-silico absorption, distribution, metabolism,… More >

  • Open Access

    ARTICLE

    Zinc Oxide Nanoparticle Alleviates the Inhibition of Dendrobium huoshanense Photosynthesis by Cadmium through Enhancing Antioxidant Enzyme System

    Cheng Song1,*, Iftikhar Hussein Shah2, Ghulam Abbas Ashraf3, Muhammad Arif4, Muhammad Aamir Manzoor1,5,*

    Phyton-International Journal of Experimental Botany, Vol.94, No.11, pp. 3427-3451, 2025, DOI:10.32604/phyton.2025.070778 - 01 December 2025

    Abstract Heavy metal pollution has become a pervasive environmental issue affecting numerous regions worldwide. Recently, there has been significant attention given to the application of nano-enabled technologies with the purpose of enhancing plant development and alleviating heavy metal stress. This study aimed to illustrate the potential of zinc oxide nanoparticles (ZnO-NPs) to enhance the morphological traits of D. huoshenense exposed to cadmium (Cd) stress. The chemical structure and elemental composition of the ZnO-NPs were characterised by a series of analytical methods, including X-ray diffraction, UV-Vis spectrometry, XPS, and TEM. Plant samples used were collected at 0, 5,… More > Graphic Abstract

    Zinc Oxide Nanoparticle Alleviates the Inhibition of <i>Dendrobium huoshanense</i> Photosynthesis by Cadmium through Enhancing Antioxidant Enzyme System

  • Open Access

    ARTICLE

    Antioxidant and Antiproliferative Potential of Nutrient—Rich Tragopogon dubius Stem and Leaves

    Sheikh Showkat Ahmad1, Chandni Garg1, Dalia Fouad2, Islam Abdulrahim Alredah3, Sandeep Kaur4, Satwinderjeet Kaur1,*

    Phyton-International Journal of Experimental Botany, Vol.94, No.11, pp. 3401-3426, 2025, DOI:10.32604/phyton.2025.067984 - 01 December 2025

    Abstract The Tragopogon dubius is traditionally used to treat many ailments, consumed as a vegetable, and utilized as fodder for livestock. Tragopogon dubius, found in the Kashmir Himalayas, is the least explored for its bioactivity properties and has a unique geographical location. This study is the first attempt to investigate the antioxidant, anticancer, and genoprotective properties of the aqueous extracts from the leaves (AQ-TrDL) and stems (AQ-TrDS) of this plant. AQ-TrDL and AQ-TrDS demonstrated significant amounts of phenolic and flavonoid contents. GC-HRMS identified various phytochemicals belonging to different classes, like carboxylic acids, fatty acid derivatives, phenols, and triterpenoids.… More >

  • Open Access

    REVIEW

    Mechanistic Insights into the Role of Melatonin in Cancer Cell Chemoresistance

    Russel J. Reiter1,*, Ramaswamy Sharma2,*, Walter Manucha3, Walter Balduini4, Doris Loh5, Demetrios A. Spandidos6, Alejandro Romero7, Vasiliki E. Georgakopoulou8, Wei Zhu9

    BIOCELL, Vol.49, No.11, pp. 2033-2067, 2025, DOI:10.32604/biocell.2025.067661 - 24 November 2025

    Abstract The development of cancer cell resistance to conventional treatments continues to be a major obstacle in the successful treatment of tumors of many types. The discovery of a highly efficient direct and indirect free radical scavenger, melatonin, in the mitochondrial matrix may be a factor in determining both the occurrence of cancer cell drug insensitivity as well as radioresistance. This relates to two of the known hallmarks of cancer, i.e., exaggerated free radical generation in the mitochondria and the development of Warburg type metabolism (glycolysis). The hypothesis elaborated in this report assumes that the high… More >

  • Open Access

    ARTICLE

    β-Aminobutyric Acid Promotes Germination of Aged Triticale Seeds and Alleviates Oxidative Stress

    Tetiana O. Yastreb1,2, Mykola V. Shevchenko2, Liubov N. Kobyzeva1,3, Alexander I. Oboznyi1, Yuriy E. Kolupaev1,2,4,*

    Phyton-International Journal of Experimental Botany, Vol.94, No.10, pp. 3125-3143, 2025, DOI:10.32604/phyton.2025.071822 - 29 October 2025

    Abstract β-Aminobutyric acid (BABA) is a physiologically active plant compound that has not been extensively studied. It has been shown to increase resistance to biotic and abiotic stress factors and enhance seed germination in certain plant species. However, its effects on cereal grains with low germination rates have not yet been studied. This study investigated the effects of BABA on the germination of aged triticale seeds, the metabolite content of seedlings, and the state of their antioxidant systems. The study found that a three-hour treatment of seeds in BABA solutions at concentrations ranging from 0.1 to… More > Graphic Abstract

    <b>β</b>-Aminobutyric Acid Promotes Germination of Aged Triticale Seeds and Alleviates Oxidative Stress

  • Open Access

    ARTICLE

    Phytochemicals, Antioxidation, and Heat Stability of Aqueous Extracts from Cherry (Prunus serrulata) Petals

    Sy-Yu Shiau*, Shuting Ni, Yanli Yu, Songling Cai, Wenbo Huang

    Phyton-International Journal of Experimental Botany, Vol.94, No.10, pp. 3047-3060, 2025, DOI:10.32604/phyton.2025.070289 - 29 October 2025

    Abstract Consumers are increasingly demanding natural colorants that are safe and offer health benefits. In addition to their ornamental characteristics, Kanzan cherry (KC) blossoms present a promising source of red-hued natural colorants and functional bioactive substances. This research utilized distilled water to extract KC petals (KCP) and their ground powders (KCPP) under varying temperatures (30°C–90°C) and times (30–180 min). The total monomeric anthocyanins (TMAC) and total phenolics (TPC) in the extracts were evaluated via the pH differential and Folin–Ciocalteu methods. Antioxidant capacities were assessed by DPPH free radical scavenging ability and reducing power. Results indicated that… More >

  • Open Access

    ARTICLE

    RAPD Marker Associations and Antioxidant Enzyme Responses of Houttuynia cordata Germplasms under Lead Stress

    Yi Yan1,2,#, Min He1,2,#, Feifeng Mao3, Xinyu Zhang4, Liyu Wang5, Jingwei Li1,2,*

    Phyton-International Journal of Experimental Botany, Vol.94, No.10, pp. 3003-3021, 2025, DOI:10.32604/phyton.2025.069166 - 29 October 2025

    Abstract Houttuynia cordata, a characteristic edible and medicinal plant in southwestern China, is prone to absorbing lead (Pb2+). Excessive consumption may lead to Pb2+ accumulation in the human body, which has been linked to serious health risks such as neurotoxicity, kidney damage, anemia, and developmental disorders, particularly in children. Therefore, the development of molecular markers associated with Pb2+ uptake and the investigation of the plant’s physiological responses to Pb2+ pollution are of great significance. In this study, 72 H. cordata germplasms were evaluated for Pb2+ accumulation after exogenous Pb2+ treatment. A significant variation in Pb2+ content was observed among the germplasms, indicating… More >

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