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Methanogenic hydrocarbon degradation can be carried out by archaea either by coupling alkane oxidation directly to methanogenesis, or in syntrophic associations with bacteria. Here, the authors provide experimental evidence supporting that methanogenic degradation of hydrocarbons can also be mediated by syntrophic cooperation between archaeal partners.

Thermophilic microorganisms can live at high temperatures, but the origin and evolution of this ability are unclear. Here, the authors isolate a thermophilic bacterium from a deep-sea hydrothermal vent, and show it belongs to a major early-diverging lineage whose ancestor was likely also a thermophilic bacterium.

Viruses are ubiquitous in the oceans, exhibiting high abundance and diversity. Here, Yi et al. present a systematic catalogue and analysis of genomic sequences from marine prokaryotes and their proviruses, thus contributing to a better understanding of the ecology of these microorganisms.

This paper is a call to action. By publishing concurrently across journals like an emergency bulletin, we are not merely making a plea for awareness about climate change. Instead, we are demanding immediate, tangible steps that harness the power of microbiology and the expertise of researchers and policymakers to safeguard the planet for future generations.

This paper is a call to action. By publishing concurrently across journals like an emergency bulletin, we are not merely making a plea for awareness about climate change. Instead, we are demanding immediate, tangible steps that harness the power of microbiology and the expertise of researchers and policymakers to safeguard the planet for future generations.

This paper is a call to action. By publishing concurrently across journals like an emergency bulletin, we are not merely making a plea for awareness about climate change. Instead, we are demanding immediate, tangible steps that harness the power of microbiology and the expertise of researchers and policymakers to safeguard the planet for future generations.

This paper is a call to action. By publishing concurrently across journals like an emergency bulletin, we are not merely making a plea for awareness about climate change. Instead, we are demanding immediate, tangible steps that harness the power of microbiology and the expertise of researchers and policymakers to safeguard the planet for future generations.

Photosynthesis is thought to be restricted to a few bacterial and eukaryotic phyla. Here, Li et al. provide evidence of photosynthetic abilities in uncultivated bacteria within the phylum Myxococcota, suggesting that some of these organisms may combine predatory and photosynthetic abilities.

Phosphorothioate (PT) modification by the dnd gene cluster is the first identified DNA backbone modification and has been shown to constitute a multifunctional epigenetic system. Despite a variety of advantages for hosting dnd systems, these systems are surprisingly distributed sporadically among contemporary microbial genomes. To address this ecological paradox, Jian et al. systematically investigated the occurrence and phylogeny of dnd systems in prokaryotes, and provided evidence to suggest that dnd systems have originated in ancient Cyanobacteria (probably Nostocales) after the Great Oxygenation Event.

Previous studies have reconstructed ancestral metabolism using sequence-based approaches. This study uses a high-throughput version of AlphaFold2 to compare proteome-wide 3D structure predictions of two representative strains of ancient archaea and bacteria.

Ocean cold seeps are poorly understood relative to related systems like hydrothermal vents. Here the authors use high pressure bioreactors and microbial communities from a cold seep mud volcano and find a previously missing step of methane conversion to acetate that likely fuels heterotrophic communities.

A metagenome-based survey of archaeal genomes encoding methyl-coenzyme M reductase (MCR)—a key enzyme for methanogenesis and anaerobic methane oxidation—reveals that MCR-based metabolism is common and diverse in archaea, and may be coupled to dissimilatory sulfate reduction in single organisms.

This paper is a call to action. By publishing concurrently across journals like an emergency bulletin, we are not merely making a plea for awareness about climate change. Instead, we are demanding immediate, tangible steps that harness the power of microbiology and the expertise of researchers and policymakers to safeguard the planet for future generations.

This paper is a call to action. By publishing concurrently across journals like an emergency bulletin, we are not merely making a plea for awareness about climate change. Instead, we are demanding immediate, tangible steps that harness the power of microbiology and the expertise of researchers and policymakers to safeguard the planet for future generations.

This paper is a call to action. By publishing concurrently across journals like an emergency bulletin, we are not merely making a plea for awareness about climate change. Instead, we are demanding immediate, tangible steps that harness the power of microbiology and the expertise of researchers and policymakers to safeguard the planet for future generations.

This paper is a call to action. By publishing concurrently across journals like an emergency bulletin, we are not merely making a plea for awareness about climate change. Instead, we are demanding immediate, tangible steps that harness the power of microbiology and the expertise of researchers and policymakers to safeguard the planet for future generations.

This paper is a call to action. By publishing concurrently across journals like an emergency bulletin, we are not merely making a plea for awareness about climate change. Instead, we are demanding immediate, tangible steps that harness the power of microbiology and the expertise of researchers and policymakers to safeguard the planet for future generations.

This paper is a call to action. By publishing concurrently across journals like an emergency bulletin, we are not merely making a plea for awareness about climate change. Instead, we are demanding immediate, tangible steps that harness the power of microbiology and the expertise of researchers and policymakers to safeguard the planet for future generations.