Jonathan M. Jacobs

Metagenomics for bacterial spot pathogen and virulence factor tracking for Ohio fresh market tomato and pepper production

The paper develops and validates a metagenomics workflow to identify bacterial spot pathogens and virulence factors in Ohio tomato and pepper production using shotgun sequencing.

Loss of dispersal via ice nucleation activity constrains microbial evolution

This study shows that loss of the inaZ gene, which enables ice nucleation activity, restricts bacterial dispersal and leads to genetic and ecological isolation.

Independent, Ongoing Clade-Specific Expansions of IS5 Elements in Pseudomonas syringae

The paper examines the distribution and expansion of a specific IS5 subclass in Pseudomonas syringae genomes, finding recent independent expansions and variable insertion site conservation.

The EPS-I exopolysaccharide transforms Ralstonia wilt pathogen biofilms into viscoelastic fluids for rapid dissemination in planta

This study identifies EPS-I as a key factor enabling Ralstonia solanacearum biofilms to exhibit viscoelastic fluid behavior, enhancing pathogen dissemination in planta.

Identification of Halo Blight Disease on Oat in Idaho and Exploration of Resistant Sources in Oat, Barley and Wheat

The paper identifies Pseudomonas coronafaciens pv. coronafaciens causing BHB in Idaho oat fields and reports resistant barley genotypes.

Tissue-Specific Experimental Evolution Reveals Adaptive Trade-Offs in the Plant Vascular Pathogen Clavibacter michiganensis

This study uses tissue-specific experimental evolution to identify adaptive traits in Clavibacter michiganensis, revealing trade-offs between vascular persistence and systemic virulence.

Ecological ubiquity and phylogeny drive nestedness in phages-bacteria networks and shape the bacterial defensome

The paper investigates phage-bacterial interactions in plant agroecosystems, finding nested network structures and phylogeny-driven defense systems.

Effector loss and gain drives pathogen host range at a fitness cost

This study shows that gene loss and gain in Xanthomonas translucens drive host range shifts, with fitness costs for generalist behavior and enhanced virulence for specialist behavior.

Barley variety Quest exhibits broad-spectrum, moderate quantitative resistance against diverse Xanthomonas translucens pathovar translucens

The paper develops a greenhouse spray inoculation protocol to screen barley germplasm for resistance against Xanthomonas translucens pv. translucens, confirming moderate resistance in cultivar Quest across diverse strains.

rpfF is not required for X. translucens pv. undulosa pathogenesis

This study shows that rpfF is not essential for X. translucens pv. undulosa pathogenesis, suggesting quorum sensing interference is not a viable strategy for preventing bacterial leaf streak.

Comparative genomics of Minnesotan barley-infecting Xanthomonas translucens shows overall genomic similarity but virulence factor diversity

The paper compares the genomes of Minnesotan Xanthomonas translucens strains and finds overall genomic similarity but diversity in virulence factors.

An atypical class of non-coding small RNAs produced in rice leaves upon bacterial infection

The paper identifies a novel class of sRNAs in rice induced by bacterial infection, which may play a role in plant-microbe interactions.