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Rezaei, N., Zamani, I., Archangi, B., Safahieh, A., Ghanemi, K.. (1405). Efficient phenanthrene biodegradation by nitrogen-fixing marine diazotrophs isolated from the Musa Estuary. سامانه مدیریت نشریات علمی, 25(6), 947-965. doi: 10.22092/ijfs.2026.136427
N. Rezaei; I. Zamani; B. Archangi; A. Safahieh; K. Ghanemi. "Efficient phenanthrene biodegradation by nitrogen-fixing marine diazotrophs isolated from the Musa Estuary". سامانه مدیریت نشریات علمی, 25, 6, 1405, 947-965. doi: 10.22092/ijfs.2026.136427
Rezaei, N., Zamani, I., Archangi, B., Safahieh, A., Ghanemi, K.. (1405). 'Efficient phenanthrene biodegradation by nitrogen-fixing marine diazotrophs isolated from the Musa Estuary', سامانه مدیریت نشریات علمی, 25(6), pp. 947-965. doi: 10.22092/ijfs.2026.136427
Rezaei, N., Zamani, I., Archangi, B., Safahieh, A., Ghanemi, K.. Efficient phenanthrene biodegradation by nitrogen-fixing marine diazotrophs isolated from the Musa Estuary. سامانه مدیریت نشریات علمی, 1405; 25(6): 947-965. doi: 10.22092/ijfs.2026.136427

Efficient phenanthrene biodegradation by nitrogen-fixing marine diazotrophs isolated from the Musa Estuary

Iranian Journal of Fisheries Sciences
دوره 25، شماره 6، بهمن 2026، صفحه 947-965    اصل مقاله (1001.24 K)
شناسه دیجیتال (DOI): 10.22092/ijfs.2026.136427
نویسندگان
N. Rezaei1؛ I. Zamani* 1؛ B. Archangi1؛ A. Safahieh1؛ K. Ghanemi2
1Department of Marine Biology, Faculty of Marine Science and Oceanography, Khorramshahr University of Marine Science and Technology, Khorramshahr, Iran
2Department of Marine Chemistry, Faculty of Marine Science and Oceanography, Khorramshahr University of Marine Science and Technology, Khorramshahr, Iran
چکیده
Polycyclic aromatic hydrocarbons are persistent environmental pollutants that pose significant risks to aquatic ecosystems. Microorganisms capable of degrading hydrocarbons under nitrogen-limited conditions may provide an effective and sustainable approach for the bioremediation of contaminated environments. In this study, four putative diazotrophic bacterial isolates were obtained from water and sediment samples of the Musa Estuary (Persian Gulf). The isolates were identified as Bacillus cereus strain BP1, Bacillus subtilis strain BP2, Microbacterium sp. strain BP3, and Microbacterium trichothecenolyticum strain BP4, based on morphological, biochemical, and 16S rRNA gene analyses. HPLC quantified phenanthrene biodegradation. All isolates were able to grow in a nitrogen-free medium supplemented with phenanthrene and exhibited high phenanthrene degradation efficiencies, ranging from 85.56% to 93.44%. Among the tested isolates, Microbacterium sp. strain BP3 achieved the highest degradation efficiency, whereas Bacillus subtilis strain BP2 exhibited the lowest. These findings highlight the potential of indigenous estuarine bacteria adapted to nitrogen-limited conditions for the biodegradation of PAHs and suggest their possible application in the bioremediation of contaminated marine environments.
کلیدواژه‌ها
Nitrogen-fixing bacteria؛ PAHs؛ Phenanthrene biodegradation؛ Bioremediation؛ Musa Estuary؛ Persian Gulf
آمار
تعداد مشاهده مقاله: 1


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