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  • Open Access

    ARTICLE

    Selenium: A Game Changer in Plant Development, Growth, and Stress Tolerance, via the Modulation in Gene Expression and Secondary Metabolite Biosynthesis

    Ali Bandehagh1,*, Zahra Dehghanian2, Vahideh Gougerdchi1, Mohammad Anwar Hossain3,*

    Phyton-International Journal of Experimental Botany, Vol.92, No.8, pp. 2301-2324, 2023, DOI:10.32604/phyton.2023.028586

    Abstract The presence of selenium (Se) is not widely established as crucial for crops, although it is commonly recognized as an important nutrient for animals as well as humans. Even so, it is inevitably accepted that Se usually contributes positively to the life cycle of plants. Previous findings suggested that small amounts of Se seem to have a productive role in growth and production. As a result, Se is assumed to function in multiple ways, primarily by influencing a variety of biochemical and physiological functions. Also, Se also acts as a plant antioxidant and pro-oxidant and confers tolerance against different abiotic… More >

  • Open Access

    ARTICLE

    Integrated Data Reveal the Flavonoid Biosynthesis Metabolic Pathway in Semen Ziziphi Spinosae Using Transcriptomic and Metabolomic

    Wei Tian1, Lingdi Liu1, Zhongxing Song2, Zhishu Tang2, Chunxiu Wen1, Tao Jiang1,*

    Phyton-International Journal of Experimental Botany, Vol.92, No.2, pp. 369-382, 2023, DOI:10.32604/phyton.2022.023184

    Abstract The extract from Semen Ziziphi Spinosae (SZS) contains many secondary metabolites (flavonoids, alkaloids, and terpenoids), widely reported for their high medicinal value. In order to know the number and type of flavonoids and the regulating mechanism of flavonoid biosynthesis during the growth and development of SZS, we identified and analyzed the flavonoid metabolites and genes in SZS using metabolomic and transcriptomic. A total of 13,232 differentially expressed genes and 83 flavonoid metabolites were identified at three different growth and development stages (T1, T2, and T3) of SZS. The main flavonoid metabolic components of SZS were catechin, L-epicatechin, (–)-epigallocatechin, (+)-gallocatechin, spinosin… More >

  • Open Access

    VIEWPOINT

    Impact of nanomaterials on plants: What other implications do they have?

    ANTONIO JUÁREZ-MALDONADO*

    BIOCELL, Vol.46, No.3, pp. 651-654, 2022, DOI:10.32604/biocell.2022.017350

    Abstract The use of nanomaterials has spread and has been applied in different industries, including agriculture. Here, the possibilities presented by NMs are very varied, from the biostimulation of favorable responses, or the control of pests and diseases, to the monitoring of characteristics of interest with the use of nanosensors. Particularly the biostimulation of agricultural crops with the use of nanomaterials is very relevant, since from this process stress tolerance, higher content of biocompounds, etc., can be induced. Although the positive impacts on crops are clear, there is not enough information to determine the long-term impacts, both on ecosystems and on… More >

  • Open Access

    ARTICLE

    Isolation, purification and structure elucidation of three new bioactive secondary metabolites from Streptomyces lividans AM

    MOHAMMAD EL-METWALLY1,*, MAMDOUH ABDEL-MOGIB2, MANAL ELFEDAWY2, GAAD SOHSAH2, AHMED REZK3, MAHMOUD MOUSTAFA4, MOHAMED SHAABAN5,6

    BIOCELL, Vol.45, No.5, pp. 1263-1271, 2021, DOI:10.32604/biocell.2021.013198

    Abstract Microorganisms are a huge mine of bioactive metabolites, and actinomycetes are one of the very active groups in this area. In this article, we are concerned about the full taxonomical characterization of Streptomyces lividans AM, isolated from Egyptian soil. This isolate produced three new bioactive metabolites, namely: 1-Nona-decanoyl,4-oleyl disuccinate (1), filoboletic acid; (9Z,11E)-8,13-dihydroxy octadeca-9,11-dienoic acid (2), and sitosteryl-3β-D-glucoside (3). Extensive 1D and 2D NMR and HR-mass spectrometry were used to elucidate the structures of the three compounds. Moreover, ten known compounds were also identified. The antimicrobial activity of the producing organism and newly reported compounds (1–3) was investigated against a… More >

  • Open Access

    ARTICLE

    Genome-wide identification of WRKY gene family and expression analysis under abiotic stresses in Andrographis paniculata

    QICHAO WANG1, WUJING ZENG1, BASHARAT ALI2, XUEMIN ZHANG3, LING XU1,*, ZONGSUO LIANG1,*

    BIOCELL, Vol.45, No.4, pp. 1107-1119, 2021, DOI:10.32604/biocell.2021.015282

    Abstract Andrographis paniculata (A. paniculata) is a Chinese herbal medicine that clears away heat, reduces inflammation, protects the liver, and promotes choleretics. The WRKYs of A. paniculata are still not well characterized, although many WRKYs have been identified in various plant species. In the present study, 59 A. paniculata WRKY (ApWRKY) genes were identified and renamed on the basis of their respective chromosome distribution. These ApWRKYs were divided into three groups via phylogenetic analysis according to their WRKY domains and combined with WRKY of Arabidopsis. The 59 identified ApWRKY transcription factors were nonuniformity distributed on 23 chromosomes of A. paniculata. From… More >

  • Open Access

    ARTICLE

    In vitro Antibacterial Activity of Moringa oleifera Ethanolic Extract against Tomato Phytopathogenic Bacteria

    Roberto Arredondo-Valdés1, Francisco D. Hernández-Castillo2, Mario Rocandio-Rodríguez1, Julia C. Anguiano-Cabello3, Madai Rosas-Mejía1, Venancio Vanoye-Eligio1, Salvador Ordaz-Silva4, Imelda V. López-Sánchez4, Laura D. Carrazco-Peña4, Julio C. Chacón-Hernández1,*

    Phyton-International Journal of Experimental Botany, Vol.90, No.3, pp. 895-906, 2021, DOI:10.32604/phyton.2021.014301

    Abstract The tomato (Solanum lycopersicum L.) is one of the world’s most important vegetable crops. Still, phytopathogenic bacteria affect the yield and quality of tomato cultivation, like Agrobacterium tumefeciens (At), Clavibacter michiganensis subsp. michiganensis (Cmm), Pseudomonas syringae pv. tomato (Pst), Ralstonia solanacearum (Rs), and Xanthomonas axonopodis (Xa). Synthetic chemical products are used mostly on disease plant control, but overuse generates resistance to bacterial control. This study aimed to evaluate the in vitro antibacterial activity of the ethanolic extract of Moringa oleifera Lam. leaves against At, Cmm, Pst, Rs, and Xa, as well as information about this plant species’ chemical composition. Antibacterial… More >

  • Open Access

    ARTICLE

    Evaluation of Ocimum basilicum L. with Different Concentrations of K+ as an Inhibitor of Pathogenic Bacterial Strains

    Mercedes Georgina Ramírez-Aragón1, Victoria Jared Borroel-García1, Ramón Valenzuela-Soto1, Ricardo David Valdez-Cepeda2, Francisco Javier Wong-Corral3, José Luis García-Hernández4,*

    Phyton-International Journal of Experimental Botany, Vol.90, No.2, pp. 533-541, 2021, DOI:10.32604/phyton.2021.013166

    Abstract The extraction of bioactive compounds has become one of the most interesting areas of modern chemistry. For therapeutic reasons, it´s important to obtain antimicrobial agents from natural origin. The objective of the present study was to determine the inhibitory effect of ethanolic extract of basil (Ocimum basilicum L. var. Red Rubin) subjected to different concentrations of potassium (K+) on the activity of three bacterial strains that are pathogens in humans. Susceptibility was evaluated by inhibition surface and these results were compared to two antibiotics: Gentamicin (GE) and Ciprofloxacin (CPF) for their efficacy against each bacterial strain. Analyzed variables presented significant… More >

  • Open Access

    REVIEW

    Do Strigolactones Regulate Bud Winter Dormancy and Charactrisitc Secondary Metabolism in Tea?

    Lin Feng1, Ziming Gong1,*, Guofeng Liu2, Yanli Liu1

    Phyton-International Journal of Experimental Botany, Vol.90, No.1, pp. 65-73, 2021, DOI:10.32604/phyton.2020.012303

    Abstract Tea (Camellia sinensis [L.] O. Kuntze.) is an important cash crop, which mainly uses tender shoots and young leaves for manufacturing. Due to the marketing characteristic that earlier made tea has higher price, the time of the breaking of winter dormancy buds in spring is extremely important in tea industry. Strigolactones are a group of carotenoids-derived metabolites which regulates bud outgrowth, shoot branching, tiller angle and environmental stress responses. The role of strigolactones in tea plant was briefly summarized in the current review, with an emphasis of the association of strigolactones on bud ecodormancy and shoot branching. The involvement of… More >

  • Open Access

    ARTICLE

    Effects of Barium Stress in Brassica juncea and Cakile maritima: The Indicator Role of Some Antioxidant Enzymes and Secondary Metabolites

    Houda Bouslimi1, Renata Ferreira2, Nesrine Dridi1, Pedro Brito3, Susete Martins-Dias4, Isabel Caçador5, Noomene Sleimi1,*

    Phyton-International Journal of Experimental Botany, Vol.90, No.1, pp. 145-158, 2021, DOI:10.32604/phyton.2020.011752

    Abstract Soil contamination by toxic trace metal elements, like barium (Ba), may stimulate various undesirable changes in the metabolic activity of plants. The plant responses are fast and with, direct or indirect, generation of reactive oxygen species (ROS). To cope with the stress imposed by the ROS production, plants developed a dual cellular system composed of enzymatic and non-enzymatic players that convert ROS, and their by-products, into stable nontoxic molecules. To assess the Ba stress response of two Brassicaceae species (Brassica juncea, a glycophyte, and Cakile maritime, a halophyte), plants were exposure to different Ba concentrations (0, 100, 200, 300 and… More >

  • Open Access

    ARTICLE

    Assessment of the Contribution of Foliar Trichomes towards Allelopathy

    Waseem Mushtaq1, M.B. Siddiqui1, Hesham F. Alharby2, Khalid Rehman Hakeem2,3,*

    Phyton-International Journal of Experimental Botany, Vol.89, No.2, pp. 291-301, 2020, DOI:10.32604/phyton.2020.08740

    Abstract Plant trichomes vary in their structure and cellular composition. Glandular trichomes contain a bulk of specific (secondary) metabolites of diverse nature. Trichomes are connected with various adaptive processes, which include protection against herbivores and pathogens as well. Our study investigates the allelopathic contribution of structures present on the leaf surface of Nicotiana plumbaginifolia Viv. against seedling growth of Cicer arietinum L. The infusion obtained after dipping Nicotiana leaves in Dichloromethane (DCM) for 10 seconds (s) was the most phytotoxic among all the infusions. The observed inhibition in Cicer growth was not only dependent on type of infusion but also the… More >

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