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Different effects of bio/non-degradable microplastics on sewage sludge compost performance: Focusing on antibiotic resistance genes, virulence factors and key metabolic functions.
J Hazard Mater
January 2025
Key Laboratory of Marine Geology and Metallogeny, First Institute of Oceanography, Ministry of Natural Resources (MNR), Qingdao 266061, China.
Microplastics (MP) have aroused increasing concern due to the negative environmental impact. However, the impact of bio/non-biodegradable MPs on the sludge composting process has not been thoroughly investigated. This study examined antibiotic resistance genes (ARGs), virulence factors (VFs), and microbial community functions in sludge compost with the application of polylactic acid (PLA) and polypropylene (PP), using metagenomic sequencing.
View Article and Find Full Text PDFRegulation of anaplerotic enzymes by melatonin enhances resilience to cadmium toxicity in Vigna radiata (L.) R. Wilczek.
Plant Physiol Biochem
January 2025
Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia.
Melatonin (Mel) is a tryptophan-derived (N-acetyl-5-methoxytryptamine) molecule. In the present study, role of Mel in the regulation of various anaplerotic enzymes is discussed in relation to N metabolism and H-ATPase activity in mung bean under Cd stress. The application of Mel to the Cd-stressed mung bean seedlings was remarkable in improving the activity of hexokinase (35.
View Article and Find Full Text PDFRecent advances in the nitrogen cycle involving actinomycetes: Current situation, prospect and challenge.
Bioresour Technol
January 2025
Key laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), College of Life Sciences, Key Laboratory of Karst Georesources and Environment (Guizhou University), Ministry of Educatio, Guizhou University, Guiyang 550025 Guizhou Province, China.
Actinomycetes are essential for sustaining the ecosystem's nitrogen balance and stimulating plant development. In contrast, existing detection and culture techniques for actinomycetes are still limited, making it difficult to fully assess their role in the nitrogen cycle. This review emphasized the advantages of actinomycetes in ecological restoration, outlined the current status and challenges of research on nitrogen cycling by actinomycetes.
View Article and Find Full Text PDFReclassification of Salinisphaera halophila Zhang et al. 2012 as a Later Heterotypic Synonym of Salinisphaera orenii Park et al. 2012.
Curr Microbiol
January 2025
Instituto de Ciencias Aplicadas, Facultad de Ingeniería, Universidad Autónoma de Chile, Sede Talca, Talca, 3460000, Chile.
In the present study, the taxonomic position of Salinisphaera halophila (NZ_AYKF00000000) and Salinisphaera orenii (NZ_AYKH00000000) was re-evaluated. In addition, their metabolic potentials and mechanisms for mitigating stress conditions were determined. Comparisons of 16S rRNA gene sequences, analysis of the phylogenetic tree, phylogenomic tree, average nucleotide identity (ANI), and digital DNA-DNA hybridization (dDDH) values were conducted.
View Article and Find Full Text PDFPhylogenetic analysis, metabolic profiling, and environmental adaptation of strain LCG007: a novel Rhodobacteraceae isolated from the East China Sea intertidal zone.
Front Microbiol
January 2025
Shanghai Engineering Center of Hadal Science and Technology, College of Marine Sciences, Shanghai Ocean University, Shanghai, China.
Strain LCG007, isolated from Lu Chao Harbor's intertidal water, phylogenetically represents a novel genus within the family Rhodobacteraceae. Metabolically, it possesses a wide array of amino acid metabolic genes that enable it to thrive on both amino acids or peptides. Also, it could hydrolyze peptides containing D-amino acids, highlighting its potential role in the cycling of refractory organic matter.
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