Bacteriophages induced by mitomycin treatment of Erwinia chrysanthemi KS612 produced plaques on lawns of E. chrysanthemi EC183 and KS605. Bacteriophage Erch-12, purified from one such plaque, transferred an array of chromosomal genes (arg, leu, his, ser, thr, trp, ura) to appropriate recipient strains derived from E. chrysanthemi EC 183. Recombinants were formed in the absence of cellular conta...

We have solved the structure of ferredoxin-NADP(H) reductase, FPR, from the plant pathogen Xanthomonas axonopodis pv. citri, responsible for citrus canker, at a resolution of 1.5 Å. This structure reveals differences in the mobility of specific loops when compared to other FPRs, probably unrelated to the hydride transfer process, which contributes to explaining the structural and functional div...

Successful pathogenesis requires a number of coordinated processes whose genetic bases remain to be fully characterized. We utilized a high-throughput, liquid media-based assay to screen transposon disruptants of the phytopathogen Pseudomonas syringae pv. maculicola ES4326 to identify genes required for virulence on Arabidopsis. Many genes identified through this screen were involved in process...

Ralstonia solanacearum is a heterogeneous species complex causing bacterial wilts in more than 450 plant species distributed in 54 families. The complexity of the genome and the wide diversity existing within the species has led to the concept of R. solanacearum species complex (RsSC). Here we report the genome sequence of the four strains (RS2, RS25, RS48 and RS75) belonging to three of the fo...

• Entomopathogenic fungi (EPF) reduced foliar disease symptoms in tomato plants. Arbuscular mycorrhizal (AMF) only affected plant growth, not disease. Fungal combinations showed functional complementarity for protection and growth. Effects were independent of root colonization pattern. Root inoculation by EPF decreased presence AMF, while AMF was unaffected EPF. Many live intimately associated ...

Microbial biocontrol agents are efficient and environment-friendly in eradicating plant pathogenic bacteria. In recent years, Bacillus velezensis has gained popularity as a potential agent many countries. Several B. velezensis-based products, previously identified amyloliquefaciens or subsp. plantarum, have received commercial approval, particularly China Europe. this study, we compiled researc...