Characterization of surface microbial communities on four seaweed species from the East China Sea

Marine Environmental Research, Год журнала: 2025, Номер 205, С. 106994 - 106994

Опубликована: Фев. 3, 2025

Язык: Английский

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Sludge amended soil induced multidrug and heavy metal resistance in endophytic Exiguobacterium sp. E21L: genomics evidences

World Journal of Microbiology and Biotechnology, Год журнала: 2025, Номер 41(4)

Опубликована: Март 28, 2025

Язык: Английский

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A Cold-Induced LEA3 Protein, DohD, Confers Cryoprotective Protection Against Low-Temperature Stress in Deinococcus radiodurans

International Journal of Molecular Sciences, Год журнала: 2025, Номер 26(8), С. 3511 - 3511

Опубликована: Апрель 9, 2025

Deinococcus radiodurans is a remarkably unique microorganism, exhibiting extraordinary tolerance to extreme conditions such as ionizing radiation, ultraviolet light, and desiccation. However, the response mechanisms of D. under low-temperature stress remain largely unexplored have yet be fully elucidated. The DohD protein hydrophilic member late embryogenesis abundant 3 (LEA3) family radiodurans, playing pivotal role in abiotic adaptation. Bioinformatics analysis revealed that contains tandem repeats disordered domains, with high α-helix content (91.41%). Furthermore, exhibits extremely low homology other proteins, highlighting its uniqueness radiodurans. Under (15 °C), expression dohD was significantly upregulated (5-fold), regulated by dual mechanism involving positive control DrRRA negative regulation Csp. Circular dichroism spectroscopy unveiled temperature-dependent structural plasticity: temperature increased from 0 °C 50° C, decreased 23.5% 18.7%, while antiparallel β-sheet 31.3% 50.8%. This suggests an interconversion strategy for thermal Additionally, deletion impaired cold, desiccation, oxidative, high-salt stresses, accompanied reduced activities antioxidant enzymes (SOD, CAT, POD) downregulation related gene expression. study elucidates multifunctional resistance through dynamics, transcriptional regulation, redox homeostasis, providing valuable insights into adaptation extremophiles.

Язык: Английский

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Microbial Life Within the Deep, Hot Subsurface Biosphere and Its Implications in Astrobiology

Опубликована: Янв. 1, 2025

Язык: Английский

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A novel salt-adapted bifunctional glucanase/mannanase from Klebsiella pneumoniae and its application in oligosaccharide production

International Journal of Biological Macromolecules, Год журнала: 2025, Номер unknown, С. 139678 - 139678

Опубликована: Янв. 1, 2025

Язык: Английский

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Genomics-based identification of a cold adapted clade in Deinococcus

BMC Biology, Год журнала: 2024, Номер 22(1)

Опубликована: Июль 2, 2024

Abstract Background Microbes in the cold polar and alpine environments play a critical role feedbacks that amplify effects of climate change. Defining adapted ecotype is one prerequisites for understanding response microbes to Results Here, we analysed 85 high-quality, de-duplicated genomes Deinococcus , which can survive variety harsh environments. By leveraging genomic phenotypic traits with reverse ecology, defined clade from eight strains isolated Arctic, Antarctic high Genome-wide optimization amino acid composition regulation signalling enable produce CO 2 organic matter boost bioavailability mineral nitrogen. Conclusions Based primarily on silico analysis, potential provided an updated view metabolic . Our study would facilitate microbial processes

Язык: Английский

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Acidic proteomes are linked to microbial alkaline preference in African lakes

Water Research, Год журнала: 2024, Номер 266, С. 122393 - 122393

Опубликована: Сен. 3, 2024

Язык: Английский

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Exploring glaciers and glacier environments as potential habitats for cold-loving bacterial taxa with diverse industrial and environmental implications

Environmental Sustainability, Год журнала: 2024, Номер 7(3), С. 279 - 286

Опубликована: Авг. 14, 2024

Язык: Английский

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