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  • Open Access


    Repellent and Insecticidal Activity of Naphthoquinones from the Heartwood of Tectona grandis on Incisitermes marginipennis (Latreille)

    Crisanto Velázquez-Becerra1,*, Gu Yen Ambriz-Ortiz1, Rafael Torres-Martínez2, Mauro Manuel Martínez-Pacheco3

    Phyton-International Journal of Experimental Botany, Vol.92, No.7, pp. 2165-2181, 2023, DOI:10.32604/phyton.2023.026954

    Abstract Wood is a lignocellulosic material that, because of its organic nature, is a source of nutrients for bacteria, fungi, and insects. Incisitermes marginipennis (Latreille) is an interesting dry wood-boring termite. Because it is an extremely destructive pest, difficult to control due to its cryptic lifestyle, and for its role in the biogeochemical cycle of carbon and other elements; it is a fundamental organism. The use of less toxic and eco-friendly substances is important for protecting domestic, cultural, and historical heritage made of wood or lignocellulosic materials. The aim of this study was to evaluate the biological activity of various naphthoquinones… More >

  • Open Access


    Termites Improve the Horizontal Movement of Carbonized Particles: A Step towards Sustainable Utilization of Biochar

    Mazhar Ali1, Nasir Masood1, Hafiz Muhammad Rashad Javeed1, Ibrahim Al-Ashkar2, Khalid F. Almutairi2, Liyun Liu3, Muhammad Aqeel Sarwar4, Karthika Rajendran5, Ayman EL Sabagh6,*

    Phyton-International Journal of Experimental Botany, Vol.91, No.10, pp. 2235-2248, 2022, DOI:10.32604/phyton.2022.021644

    Abstract Soil amendments containing carbonized materials increase the soil carbon reservoir, influence plant productivity, and, ultimately, help to clean the environment. There is data on the effect of such additions on soil physicochemical properties or plant growth, but few studies have focused on how these carbonized materials are distributed by termite species in the soil ecosystem. It is the first comprehensive study of the transportation of biochar (BC) by termite species under tropical environmental conditions in Pakistan. The present study was carried out to test the hypothesis that if termite species I) were involved in the distribution of biochar particles II)… More >

  • Open Access


    Antifeedant Activity of Caesalpinia coriaria Essential Oil Against Incisitermes marginipennis (Latreille)

    Cesar B. Ramírez-López1,2, Rita Beltrán-Sánchez1, Alistair Hernández-Izquierdo1, José Luis SalvadorHernández1, Eduardo Salcedo-Pérez2, Rosa E. del Río1, Mauro M. Martínez Pacheco1,*

    Phyton-International Journal of Experimental Botany, Vol.90, No.3, pp. 907-920, 2021, DOI:10.32604/phyton.2021.013775

    Abstract This study scrutinized the possibility of finding toxicant or deterrent plant metabolites against the dry wood termite Incisitermes marginipennis (Latreille). Plant deterrent agents act as repellents or antifeedants to prevent wood decay and increase its useful life. The potential of the tree Caesalpinia coriaria (Fabaceae) as a biological source of molecules with deterrent effects against the dry wood termite was assessed by a phytochemical fractionation guided by repellence and antifeedant activities. The gas chromatography-mass spectrometry analysis of the leaf essential oil showed geraniol to be one of the major components and its repellent and antifeedant effects were determined. Geraniol had… More >

  • Open Access


    Characterization of Extracts from the Bark of the Gabon Hazel Tree (Coula edulis baill) for Antioxidant, Antifungal and Anti-termite Products

    Christ Stone Arnaud Bopenga Bopenga1, Henri Meyo Degboevi1, Kevin Candelier2, Prosper Edou Engonga3, Stéphane Dumarçay1, Marie France Thévenon2, Christine Gérardin Charbonnier1, Philippe Gérardin1,*

    Journal of Renewable Materials, Vol.9, No.1, pp. 17-33, 2021, DOI:10.32604/jrm.2021.013366


    Chemical composition of the bark extracts of Coula edulis was investigated to find potential antioxidant, anti-termite and antifungal compounds which can find useful applications in the fields of food, nutraceuticals, cosmetics or agrochemical. Phytochemical screening revealed the presence of several groups of active molecules such as alkaloids, polyphenols, flavonoids, saponins and sterols and/or terpenes in the different extracts. Total phenols, condensed tannins and flavonoids contents corroborated phytochemical screening. Gas chromatography-mass spectrometry (GC-MS) analysis revealed compounds in dichloromethane extract different from those obtained with all the other solvents. Hexadecanoic and trans-9-octadecenoic acids, as well as stigmasterol and β-sitosterol have been identified… More >

  • Open Access


    Slow Pyrolysis of Sugarcane Bagasse for the Production of Char and the Potential of Its By-Product for Wood Protection

    Febrina Dellarose Boer1,2,3, Jérémy Valette1,2, Jean-Michel Commandré1,2, Mériem Fournier3,4, Marie-France Thévenon1,2,*

    Journal of Renewable Materials, Vol.9, No.1, pp. 97-117, 2021, DOI:10.32604/jrm.2021.013147

    Abstract Sugarcane bagasse was pyrolyzed using a laboratory fixed bed reactor to produce char and its by-product (pyrolysis liquid). The pyrolysis experiments were carried out using different temperatures (400°C and 500°C), heating rate (1 °C/min and 10 °C/min), and holding time (30 min and 60 min). Char was characterized according to its thermal properties, while the pyrolysis liquid was tested for its anti-fungal and anti-termite activities. Pyrolysis temperature and heating rate had a significant influence on the char properties and the yield of char and pyrolysis liquid, where a high-quality char and high yield of pyrolysis liquid can be obtained at… More >

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