Zagazig University Digital Repository
Home
Thesis & Publications
All Contents
Publications
Thesis
Graduation Projects
Research Area
Research Area Reports
Search by Research Area
Universities Thesis
ACADEMIC Links
ACADEMIC RESEARCH
Zagazig University Authors
Africa Research Statistics
Google Scholar
Research Gate
Researcher ID
CrossRef
Molecular characterization and soil bioremediation of Clodinafop-propargyl by a novel bacterial consortium
Faculty
Agriculture
Year:
2025
Type of Publication:
ZU Hosted
Pages:
Authors:
Mohammed Abdel-Moneim Fahmy
Staff Zu Site
Abstract In Staff Site
Journal:
Environmental Technology & Innovation Elsevier
Volume:
Keywords :
Molecular characterization , soil bioremediation , Clodinafop-propargyl , , novel
Abstract:
Clodinafop-propargyl (CF) is a widely used herbicide with high persistence in soil, raising concerns about its long-term environmental impact. Bacterial biodegradation provides a sustainable and eco-friendly strategy to mitigate CF contamination. This study evaluated the in-situ bioremediation potential of a six-member bacterial consortium (T3) by measuring CO₂ evolution as an indicator of microbial activity and monitoring CF residues in two soil types using microcosm systems. The consortium included Bacillus subtilis subsp. subtilis AZFS3 (LC599401.1), Bacillus pumilus AZFS5 (LC599402.1), Bacillus mojavensis AZFS15 (LC599403.1), Bacillus paramycoides AZFS18 (LC599406.1), Pseudomonas aeruginosa KZFS4 (LC599404.1), and Alcaligenes aquatilis KZFS11 (LC599405.1). T3 performance was compared to two individual strains representing Gram-positive and Gram-negative bacteria: B. subtilis subsp. subtilis AZFS3 (T1) and P. aeruginosa KZFS4 (T2). T3 achieved the highest degradation efficiency among all treatments, with CO₂ emissions nearing zero by day 20 (0.120 mg CO₂/100 g/DW. soil, equivalent to 0.63 % CF residue in sandy loam). CF residues were significantly reduced to 0.34 % (0.16 mg/kg sandy loam soil) and 6.38 % (2.99 mg/kg clay soil), underscoring the consortium’s strong bioremediation capacity, as determined by HPLC. Metabolite profiling, gene expression analysis, and pathway prediction further supported the consortium’s superiority over individual strains. The enzymes required for CF degradation were distributed across all six bacterial strains. The molecular characterization of the CF degradation pathway, using integrated bioinformatic and experimental approaches, confirmed its collective encoding by the individual members of the bacterial hexa-consortium. The Maleylacetate reductase (EC 1.3.1.32), crucial for the complete CF breakdown, was found exclusively in P. aeruginosa, suggesting a potential enzymatic bottleneck and a limiting factor. Future research should focus on enriching the consortium with additional strains expressing this enzyme to provide other alternatives capable of enhancing the degradation efficiency. The six-strain consortium offers a practical and environmentally sound solution for remediating CF-contaminated soils.
Author Related Publications
Mohammed Abdel-Moneim Fahmy, "MICROBIAL BIODEGRADATION POTENTIAL OF PETROLEUM-AND NATURE OILS BY INDIGENOUS HYDROCARBON DEGRADING BACTERIA ISOLATED FROM PETRO-CONTAMINATED SITES", Agric. Microbiol. Dept., Fac. Agric., Zagazig Univ., Egypt, 2017
More
Mohammed Abdel-Moneim Fahmy, "دراسات على التحلل الحيوى للهيدروكربون بواسطة الميكروبات", Zagazig J. Agric. Res, 2018
More
Mohammed Abdel-Moneim Fahmy, "Valorization of fish oil from processing by-products: Composition, nutritional value, and potential applications", Elsevier, 2025
More
Mohammed Abdel-Moneim Fahmy, "Ultraviolet processing for mycotoxin mitigation: A sustainable approach to enhancing food safety and security", Elsevier, 2025
More
Mohammed Abdel-Moneim Fahmy, "Biodegradation of Chlorantraniliprole and Flubendiamide by Some Bacterial Strains Isolated from Different Polluted Sources", MDPI, 2022
More
Department Related Publications
ali salama ali salama, "Antibacterial phycocyanin from Anabaena oryzae SOS13", دولى, 2015
More
Ahmed Abdelmohsen Mahdi , "Impact of temperature and photoperiod on anaerobic biodegradability of microalgae grown in urban wastewater", Elsevier, 2016
More
Ahmed Abdelmohsen Mahdi , "Acclimation to extremely high ammonia levels in continuous biomethanation process and the associated microbial community dynamics", Elsevier, 2018
More
Mohammed Ibrahim Ahmed Hegazy, "تحسين جودة شاي الكمبوست الفيزوكيميائية و الميكروبيولوجية باستخدام معاملات مختلفة اثناء الإستخلاص", Scientific publisher, 2015
More
Mohammed Ibrahim Ahmed Hegazy, "تقييم وتوصيف بعض ميكروبات الريزوسفير المشجعة لنمو النبات والمعزولة من محافظة الشرقيةتقييم وتوصيف بعض ميكروبات الريزوسفير المشجعة لنمو النبات والمعزولة من محافظة الشرقية", جامعة الزقازيق, 2016
More
جامعة المنصورة
جامعة الاسكندرية
جامعة القاهرة
جامعة سوهاج
جامعة الفيوم
جامعة بنها
جامعة دمياط
جامعة بورسعيد
جامعة حلوان
جامعة السويس
شراقوة
جامعة المنيا
جامعة دمنهور
جامعة المنوفية
جامعة أسوان
جامعة جنوب الوادى
جامعة قناة السويس
جامعة عين شمس
جامعة أسيوط
جامعة كفر الشيخ
جامعة السادات
جامعة طنطا
جامعة بنى سويف