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  • Open Access

    ARTICLE

    Preliminary Study on the Treatment Efficiency of Pasteurized Lime Thermal Alkaline Hydrolysis for Excess Activated Sludge and Reduction of Tetracycline Resistance Genes

    Maoxia Chen1,2,*, Qixuan Zhou1, Jiayue Zhang1, Jiaoyang Li1, Wei Zhang1, Huan Liu1

    Journal of Renewable Materials, Vol.11, No.10, pp. 3711-3723, 2023, DOI:10.32604/jrm.2023.027826 - 10 August 2023

    Abstract Thermal alkaline hydrolysis is a common pretreatment method for the utilization of excess activated sludge (EAS). Owing to strict environment laws and need for better energy utilization, new methods were developed in this study to improve the efficiency of pretreatment method. Direct thermal hydrolysis (TH), pasteurized thermal hydrolysis (PTH), and alkaline pasteurized thermal hydrolysis (PTH + CaO and PTH + NaOH) methods were used to treat EAS. Each method was compared and analyzed in terms of dissolution in ammonium nitrogen (NH4 + -N) and soluble COD (SCOD) in EAS. Furthermore, the removal of tetracycline resistance genes… More >

  • Open Access

    ARTICLE

    Conventional Breeding and Molecular Markers for Blast Disease Resistance in Rice (Oryza sativa L.)

    Adel A. Rezk1,2, Mohamed M. El-Malky3, Hossam S. El-Beltagi1,4,*, Mohammed Al-daej1, Kotb A. Attia5,6

    Phyton-International Journal of Experimental Botany, Vol.92, No.3, pp. 725-746, 2023, DOI:10.32604/phyton.2022.024645 - 29 November 2022

    Abstract Monogenic lines, which carried 23 genes for blast resistance were tested and used donors to transfer resistance genes by crossing method. The results under blast nursery revealed that 9 genes from 23 genes were susceptible to highly susceptible under the three locations (Sakha, Gemmeza, and Zarzoura in Egypt); Pia, Pik, Pik-p, Piz-t, Pita, Pi b, Pi, Pi 19 and Pi 20. While, the genes Pii, Pik-s, Pik-h, Pi z, Piz-5, Pi sh, Pi 3, Pi 1, Pi 5, Pi 7, Pi 9, Pi 12, Pikm and Pita-2 were highly resistant at the same locations. Clustering analysis confirmed the results, which divided into two groups; the first one included all the susceptible genes,… More >

  • Open Access

    ARTICLE

    Analysis of the Relationship between Blast Resistance Genes and Disease Resistance of Rice Germplasm via Functional Molecular Markers

    Ning Xuan1, Hua Zhang1, Xu Liu1, Qiang Guo1, Jian Liu2, Fangyin Yao1,*

    Phyton-International Journal of Experimental Botany, Vol.89, No.1, pp. 45-55, 2020, DOI:10.32604/phyton.2020.08548 - 01 March 2020

    Abstract Rice blast disease is one of the most devastating diseases of rice (Oryza sativa L.) caused by the fungus Magnaporthe oryzae (M. oryzae), and neck blast is the most destructive phase of this illness. The underlying molecular mechanisms of rice blast resistance are not well known. Thus, we collected 150 rice varieties from different ecotypes in China and assessed the rice blast resistances under the natural conditions that favoured disease development in Jining, Shandong Province, China in 2017. Results showed that 92 (61.3%) and 58 (38.7%) rice varieties were resistant and susceptible to M. oryzae, respectively. Among the 150… More >

  • Open Access

    ARTICLE

    Characterization of multidrug-resistant Klebsiella pneumoniae isolated from the Chinese cobra Naja atra in a Beijing suburb

    Haifeng WANG1, 2, 3 , Hongxuan HE2

    BIOCELL, Vol.42, No.2, pp. 47-54, 2018, DOI:10.32604/biocell.2018.07006

    Abstract The emergence and spread of antibiotic resistance genes among Bacteria are a serious threat to global health. Their occurrence in animals which are in contact with humans is also important. The Chinese cobra (Naja atra, Elapidae), though a highly venomous species, is appreciated as food and as a source of materials used in traditional Chinese medicine. We are here reporting the isolation of multidrug-resistant Klebsiella pneumoniae (Enterobacteriaceae) from the lung of Naja atra, obtained from a snake farm in a Beijing suburb. Our study analyzed, using gene sequencing, the occurrence of antibiotic resistance genes (ARGs) in… More >

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