August 1st, 2022

God morgon!

Good morning from Sweden.

Today’s digest has studies from diverse topics but the one that caught my attention is a preprint that addresses the controversial question of presence of a ‘normal blood microbiota’ in humans. The authors of this preprint analysed about 10,000 humans samples and provide evidence that there is no core blood microbiota.

A new preprint describes a unique Taleocin (a bacteriocin) from Pseudomonas syringae which defies the convention that bacteriocins have a narrow spectrum. The bacteriocin has a broad range killing activity against agriculturally important pathogens like Erwinia amylovora and Xanthomonas perforans as well as against the clinical human pathogen Salmonella choleraesuis.

Another preprint reports metabolic interactions responsible for unusually high Iron and lipid content in Geobacter sulfurreducens, a bacterium known iron reducing bacterium in the soil. Another environmental study found that human pathogens are the major carriers of antibiotic resistance genes in the Yangtze river – one of the longest in the world. This is in contrast to prevalent belief that conventional supercarriers are Enterococcus spp. and other fecal indicator bacteria.

Elsewhere in the digest is a preprint from my previous lab where my old colleagues have reported a small RNA and metal dependent mechanism that regulates the survival of Acinetobacter baumannii under oxidative stress.

As a bonus, there is a super intriguing preprint where the authors have actually provided evidence that coming up with creative and funny titles for your papers can help them gain more visibility and citations! So, all of you writing an article or planning to write one soon, this is a great tip!

I hope you will enjoy reading today’s digest and have a great week ahead!

Human gut

Microbiota responses to different prebiotics are conserved within individuals and associated with habitual fiber intake – Zachary C. Holmes, et al., Microbiome

Near-sterile sites

Preprint: No evidence for a common blood microbiome based on a population study of 9,770 healthy humans – Cedric C.S. Tan, et al.

Water microbiome

Supercarriers of antibiotic resistome in a world’s large river – Jiawen Wang, et al., Microbiome

Oceanospirillales containing the DMSP lyase DddD are key utilisers of carbon from DMSP in coastal seawater – Jingli Liu, et al., Microbiome

Community structure of coral microbiomes is dependent on host morphology – Kathleen M. Morrow, et al., Microbiome

Preprint: The impact of primary colonizers on the community composition of river biofilm – Roshan Angoshtari, et al.

Soil microbiome

Long-term nitrogen deposition enhances microbial capacities in soil carbon stabilization but reduces network complexity – Xingyu Ma, et al., Microbiome

Animal microbiome

Host-microbiota interaction-mediated resistance to inflammatory bowel disease in pigs – Xuan Zhao, et al., Microbiome

Preprint: The differing roles of flavins and quinones in extracellular electron transfer in Lactiplantibacillus plantarum – Joe Gregory Tolar, et al.

Bacteria Hysteria

Preprint: Interspecies Killing Activity of Pseudomonas syringae Tailocins – Savannah L Weaver, et al.

Preprint: Enhanced production of natural shiga toxin by overexpressing A subunit of Stx2e in Stx2e-producing Escherichia coli isolated in South Korea – Jin Hur, et al.

Preprint: Geobacter sulfurreducens′ unique metabolism results in cells with a high iron and lipid content – Ethan T Howley, et al.

Preprint: Cloning, heterologous expression and characterization of o-phthalyl-CoA decarboxylase from phthalate degrading denitrifying bacterium – Madan Junghare

Preprint: Acinetobacter baumannii defends against oxidative stress through a Mn2+-dependent small RNA-mediated suppression of type VI secretion system – Somok Bhowmik, et al.

Techniques

Preprint: Programmable acetylation modification of bacterial proteins by a Cas12a-guided acetyltransferase – Liu yanqiang, et al.

Fun

Preprint: If this title is funny, will you cite me? Citation impacts of humour and other features of article titles in ecology and evolution – Stephen B Heard, et al.