Coexistence ecology of pathogen-inhibiting microbes in the phytobiome

Certain microbes have considerable potential as biocontrol agents against various pathogens, but they coexist with other microbial species in complex networks of interactions that influence their function in a host-dependent manner. These interactions and underlying mechanisms are still largely unknown. In this review we focus on Pseudomonas, a versatile genus of bacteria with adaptable physiological and metabolic traits, functioning as both symbionts and pathogens. We review the direct antagonism pathways Pseudomonas uses to inhibit different pathotypes and its role in indirectly inducing systemic defense responses in plants. We provide insights into bacterial coexistence and interactions in host plant–microbe and microbe–microbe relationships, considering pairwise and community dynamics. Understanding these interactions will help optimize synthetic communities and improve practices for sustainable agriculture.

dlvr.it

PhD position: Ecology and Genomics of Phyllosphere Yeasts

The phyllosphere - the aerial parts of plants - harbors a rich and diverse microbial community, including bacteria, filamentous fungi, yeasts and viruses. This environment is both harsh and dynamic, e...

nioo.knaw.nl

Seed-borne bacteria drive wheat rhizosphere microbiome assembly via niche partitioning and facilitation

Nature Microbiology - A sequential propagation strategy shows how the microbes initially on seeds are key to building complex, reproducible and heritable plant microbiomes.

rdcu.be

Pseudomonas syringae subpopulations cooperate by coordinating flagellar and type III secretion spatiotemporal dynamics to facilitate plant infection

Nature Microbiology - Single-cell gene expression analysis reveals phenotypic heterogeneity to enable bacterial specialization over the course of plant colonization.

rdcu.be

The alkane 1-monooxigenase gene alkB of Pseudomonas sp. FF2 is upregulated during colonisation of Arabidopsis thaliana leaves

Bacteria on leaf surfaces encounter highly variable access to nutrients and water. This oligotrophic environment is partly due to the presence of cuticular waxes that render the leaf surface hydrophob...

biorxiv.org

Gut microbiome signatures of vegan, vegetarian and omnivore diets and associated health outcomes across 21,561 individuals

Nature Microbiology - Using 21,561 individuals, the authors present a cross-sectional study of how gut microbiome signatures are associated with dietary intake patterns and with host health outcomes.

rdcu.be

Differential Responses of Methylobacterium and Sphingomonas Species to Multispecies Interactions in the Phyllosphere

Leaf-associated bacterial populations of Methylobacterium and Sphingomonas in two- and three-member synthetic communities on Arabidopsis thaliana display distinct spatial structures and population dy....

enviromicro-journals.onlinelibrary.wiley.com

Structure and mechanism of the Zorya anti-phage defense system - Nature

Nature - Structure and mechanism of the Zorya anti-phage defense system

nature.com

Subtilase SBT5.2 inactivates flagellin immunogenicity in the plant apoplast - Nature Communications

Plants recognize bacteria by perceiving a 22-residue epitope in flagellin. Plant-secreted SBT5.2 subtilases are found to inactivate this epitope, leading to elicitor removal and reducing costly immuni...

nature.com

Closing the scissor-shaped curve: Strategies to promote gender equality in academia

Gender inequality in STEM fields remains pervasive and undermines the ability for talented individuals to excel. Despite advances, women still encounter obstacles in pursuing academic careers and reac...

cell.com

a woman in a fairy costume is smiling and holding a magic wand

ALT: a woman in a fairy costume is smiling and holding a magic wand

media.tenor.com

NMFGOT: a multi-view learning framework for the microbiome and metabolome integrative analysis with optimal transport plan - npj Biofilms and Microbiomes

npj Biofilms and Microbiomes - NMFGOT: a multi-view learning framework for the microbiome and metabolome integrative analysis with optimal transport plan

nature.com