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ISSN: 2667-3703

Gdx mediates low-affinity Cs⁺/H⁺ antiport and confers cesium resistance in Escherichia coli

•gdx is strongly upregulated in the Cs⁺-resistant strain ZX-1.•A 20-bp deletion in the riboswitch P2 loop causes constitutive gdx expression.•Gdx exports Cs⁺ via H⁺ antiport, at ∼500-fold lower affinity...

Phase variation in Bacteroides fragilis governs susceptibility to a microvirus and drives its evolution

•We isolated the first Bacteroidota-infecting Microviridae phage, φHBP1.•B. fragilis likely exploits phase variation to be resistant against φHBP1.•φHBP1 evolves to reinfect the resistant population...

Characterization of Bacillus subtilis phages PJNB030, PJNB031, and PJNB032 reveals wall teichoic acid as a key receptor determinant

Bacillus subtilis is widely used in industrial fermentation and probiotic applications; however, phage contamination poses a substantial economic threat. To address this, we isolated three phages (PJNB030,...

Advances in polyethylene biodegradation and bioconversion: Microbial, enzymatic, and biotechnological insights

Polyethylene (PE) is one of the most widely used plastics worldwide and is valued for its versatility, durability, and cost-effectiveness. However, the chemical stability of PE combined with its widespread...

Genetically encoded biosensors enabled high-throughput screening of microbial cell factories

•Genetically encoded biosensors couple product synthesis to detectable HTS outputs.•Synthetic biology and AI-driven strategies accelerate precise biosensor engineering.•Optimization protocols are detailed...

Advances in microbial mevalonolactone production: from fermentative mevalonate accumulation to downstream lactonization

Mevalonolactone (MVAL) is a high-value feedstock for the cosmetic industry, with (R)-(-)-MVAL as the sole bioactive enantiomer. Chemical synthesis, which is the traditional method for MVAL production,...

Pathway reprogramming and catalytic network engineering for the production of bioactive aspertetranones from deep-sea Aspergillus versicolor ADS-F20

Aspertetranones are a unique class of marine fungal meroditerpenoids characterized by a highly oxygenated, linear 6/6/6/6 tetracyclic core fused to an α-pyrone scaffold. Although the pathway of aspertetranone...

Archaeasins as a promising resource for developing next-generation antibiotics uncovered via deep learning

Fighting against antibiotic resistance has an unexpected ally, archaea. Despite the extensive exploration of antimicrobial peptides in bacteria and eukaryotes, the archaeal domain has been overlooked....

Unraveling microbial life from a high-altitude hydrothermal system in the Andes plateau and their potential for nitrogen transformations

Terrestrial hydrothermal systems provide a window for studying the biogeochemical interactions that occur in hot and gas-rich ecosystems resembling the conditions found in early life on Earth. The biogeochemical...

Bacterial co-cultivation for the degradation of polystyrene plastics

•Microbial co-culture was proposed for the management of polystyrene waste.•The degradation of PS by co-culture was 2.85 times greater than pure culture.•Polystyrene was recycled to muconic acid through...

Decoupling growth phase dependency and metal ion inhibition: A dual engineering strategy for the high-yield biosynthesis of microcin J25 in Escherichia coli

Microcin J25 (MccJ25) has received substantial attention as a potential solution to the global threat of infection caused by antibiotic-resistant bacteria. However, the industrial fermentation of MccJ25...

Bifidobacterium animalis subsp. lactis genome resources and metabolite profiling at the strain level and their ability to alleviate anxiety-like behavior in a sleep-deprived mouse model

Bifidobacterium animalis subsp. lactis is a well-known probiotic with potential benefits for alleviating sub-health symptoms, including immune dysfunction and anxiety. Given the strain-specific nature...

Identification and functional characterization of a potential l-Homoserine exporter in Corynebacterium glutamicum

•A novel l-Homoserine exporter was identified in C. glutamicum.•The exporter significantly enhances l-Homoserine tolerance and export capacity.•The exporter greatly increases l-Homoserine productio...

Simultaneous co-cultivation of the thermoacidophilic methanotroph, Methylacidiphilum sp. RTK17.1, and the microalga, Galdieria sp. RTK37.1, for single cell protein production

The verrucomicrobial methanotroph, Methylacidiphilum sp. RTK17.1, and the microalgae, Galdieria sp. RTK37.1 are both thermoacidophilic microorganisms isolated from geothermally heated soils at Rotokawa,...

Electricity generation and dibenzothiophene biodegradation using a novel electroactive bacterium Lysinibacillus macroides AP in microbial fuel cells

Polycyclic aromatic sulfur heterocycles, such as dibenzothiophene (DBT), and their alkylated derivatives are recognized as persistent and toxic contaminants that pose major risks to the environment...

Systems metabolic engineering of glutathione biosynthesis in Saccharomyces cerevisiae: Pathway balancing coupled with enzyme screening for high-titer production

•Novel plasmid-free S. cerevisiae produces 997.46 mg·L⁻¹ glutathione.•Gsh1-Gsh2 fusion resolves γ-glutamylcysteine bottleneck in GSH pathway.•DO-coupled fed-batch boosts GSH titer 2.9 × vs. flasks in...

Diversity analysis of phytase-producing bacteria from coastal seawater and sediment and characterization of their phytases

•Diversity of phytate-utilizing bacteria in coastal marine environments was analyzed.•Twenty-seven phytase-producing bacterial strains were isolated.•Five phytases were expressed and characterized.•Phytase...

Enhancement of heat resistance of Bacillus thermoamylovorans drives enhanced PET degradation

•First identification of thermotolerance genes in Bacillus thermoamylovorans.•Small heat shock protein enhances cell survival under heat stress.•Engineered stain achieves 84.3% higher PET degradation...

Analysis of the PRE configuration reveals the constraints in Ste12 oligomerization in mediating pheromone-inducible transcription in Saccharomyces cerevisiae

Yeast cell mating is regulated by the transcription factor Ste12, which activates the transcription of mating genes by binding to pheromone response elements (PREs) in their promoters. PREs vary in...

Modulation of Hachiman defence by a type II toxin-antitoxin system via balancing trade-off between the fitness cost and antiphage activity

Hachiman systems provide innate antiphage immunity across prokaryotic domains. The system encodes a HamA nuclease and a HamB helicase both of which exhibit great diversity in sequence. Nevertheless,...

Effect of resistant starch type 5 on gut health through modulating gut microbiota

Resistant starch is a dietary fiber that escapes digestion in the small intestine and undergoes fermentation by gut microbiota in the colon, producing beneficial short-chain fatty acids (SCFAs). Among...

A novel therapeutic strategy of methicillin-resistant Staphylococcus aureus

Staphylococcus aureus is a major public health threat, largely due to its remarkable capacity to develop antimicrobial resistance. Zhang et al. recently demonstrated a highly innovative approach to...

Genotypic and molecular characterization of a moderately thermophilic cyanobacterium, Gloeocapsa sp. strain BRSZ

A unicellular-colonial cyanobacterium, designated “BRSZ,” was isolated from a neutral-alkaline hot spring in Thailand. Morphological characterization revealed distinctive features consistent with those...

Production of dicarboxylates from ω-amino acids using a cofactor- and co-substrate-free in vitro biosynthetic system

Dicarboxylates are valuable platform compounds with a broad range of applications. The in vitro biosynthetic system used to produce dicarboxylates from ω-amino acids via the natural pathway requires...

Analysis of single-cell RNA sequencing data to examine the gastric inflammation-to-cancer transition and evaluation of the effect of probiotic on precancerous lesions

•PR-enriched pit mucous cells drive the inflammation-to-cancer transition.•Gene set was rigorously validated across multiple external cohorts.•Probiotics modulate the gastric cancer-associated tumor-immune...

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