{
    "abstract": "The microbial reduction of hexavalent chromium (Cr(VI)), particularly by bacteria, has been extensively studied, revealing varying removal mechanisms among different strains. This investigation identified a novel bacterial strain, Staphylococcus succinus subsp. Succinus AMG-D1, which was isolated from mining soil and Cr(VI)-resistant. This strain demonstrated the capability to completely remove a high concentration of 200\u00a0mg/L Cr(VI) within 120\u00a0h at pH 7 and 35\u00a0\u00b0C. Moreover, it effectively reduced repeated contamination of 100\u00a0mg/L Cr(VI). Scanning electron microscopy analysis confirmed the strain's high resistance to Cr(VI), coupled with the secretion of a viscous material, possibly metal-adsorbing exopolysaccharides. Energy dispersive X-ray peaks analysis revealed characteristic chromium peaks, indicating the presence of adsorbed Cr(VI) and/or precipitated species of reduced chromium (Cr(III)). Further investigations into Cr(VI) removal mechanisms have revealed a detoxification process involving adsorption, accumulation, and enzymatically mediated biological reduction. This reduction predominantly occurs through constitutive cytoplasmic proteins. Moreover, a protein with a molecular weight of approximately 30\u00a0kDa was identified on an SDS-PAGE gel, potentially responsible for Cr(VI) reduction. The remarkable resistance and substantial reduction capabilities of Staphylococcus succinus position it as a promising strain for bioremediation applications.",
    "authors": [
        {
            "affiliation": "Natural Resources and Environment Laboratory, Polydisciplinary Faculty of Taza, Sidi Mohamed Ben Abdellah University, 30050, Fez, Morocco.",
            "firstname": "Kaoutar",
            "initials": "K",
            "lastname": "Harboul"
        },
        {
            "affiliation": "Natural Resources and Environment Laboratory, Polydisciplinary Faculty of Taza, Sidi Mohamed Ben Abdellah University, 30050, Fez, Morocco.",
            "firstname": "Houda",
            "initials": "H",
            "lastname": "Chtibi"
        },
        {
            "affiliation": "Biotechnology, Environment, Agri-Food and Health Laboratory, Faculty of Sciences Dhar El Mahraz, Sidi Mohamed Ben Abdellah University, 30050, Fez, Morocco.",
            "firstname": "Halima",
            "initials": "H",
            "lastname": "Amakdouf"
        },
        {
            "affiliation": "Natural Resources and Environment Laboratory, Polydisciplinary Faculty of Taza, Sidi Mohamed Ben Abdellah University, 30050, Fez, Morocco.",
            "firstname": "Khalil",
            "initials": "K",
            "lastname": "Hammani"
        },
        {
            "affiliation": "Biotechnology, Environment, Agri-Food and Health Laboratory, Faculty of Sciences Dhar El Mahraz, Sidi Mohamed Ben Abdellah University, 30050, Fez, Morocco. abdenbi.elkarkouri@usmba.ac.ma.",
            "firstname": "Abdenbi",
            "initials": "A",
            "lastname": "El-Karkouri"
        }
    ],
    "conclusions": null,
    "copyrights": "\u00a9 2025. The Author(s), under exclusive licence to Springer Nature B.V.",
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    "journal": "World journal of microbiology & biotechnology",
    "keywords": [
        "Staphylococcus succinus",
        "Bioremediation",
        "Cr(VI) removal",
        "Cytoplasmic proteins",
        "Hexavalent chromium"
    ],
    "methods": null,
    "publication_date": "2025-04-28",
    "pubmed_id": "40289046\n25216801\n37115249\n22608208\n28841524\n16329970\n20608725\n15489351\n15003691\n24091247\n12108713\n32172324\n11935196\n9821258\n9251210\n33609863\n15721535\n19636521\n31260173\n5432063\n14907713\n30583287\n11214794\n21497365\n12483605\n34134043\n34882507\n21080098\n33242787\n28881274\n30677647\n31629191",
    "results": null,
    "title": "Bioreduction of hexavalent chromium and removal mechanisms using Staphylococcus succinus.",
    "xml": "<Element 'PubmedArticle' at 0x788505c0aa20>"
}