Short-chain fatty acids (SCFAs) are used to preserve food and could be a tool for control of fire blight caused by Erwinia amylovora on apple, pear and related rosaceous plants. Neutralized acids were added to buffered growth media at 0.5–75 mM and tested at pHs ranging from 6.8 to 5.5. Particularly at low pH, SCFAs with a chain length exceeding that of acetic acid such as propionic acid were effective growth inhibitors of E. amylovora possibly due to uptake of free acid and its intracellular accumulation. We also observed high inhibition with monochloroacetic acid. An E. billingiae strain was as sensitive to the acids as E. amylovora or E. tasmaniensis. Fire blight symptoms on pear slices were reduced when the slices were pretreated with neutralized propionic acid. Propionic acid is well water soluble and could be applied in orchards as a control agent for fire blight.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1007/s00203-013-0928-0 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Development of a gum tragacanth-coated nanoparticle system for controlled release of plant extracts against Erwinia amylovora.
Int J Biol Macromol
January 2025
Department of Nanotechnology, Faculty of Chemistry, University of Isfahan, Isfahan 81746-73441, Iran. Electronic address:
Fire blight, caused by Erwinia amylovora, is a significant threat to fruit crops, with limited biocontrol methods. This study aimed to develop a nanosystem using mesoporous silica nanoparticles (MSNs) loaded with a phenolic plant extract (ZP) derived from Myrtus communis, Thymus vulgaris, and Curcuma longa, and coated with natural biopolymers Gum Tragacanth (GT) and sodium alginate (SA). The MSNs were synthesized and characterized by XRD, FTIR, and TEM, exhibiting a specific surface area of about 750 m/g and an average pore diameter of 5 nm.
View Article and Find Full Text PDFUnveiling Antibiotic Resistance: Genome Sequencing of Streptomycin-Resistant Isolate.
Microorganisms
December 2024
Department of Applied Biology, Chungnam National University, Daejeon 34134, Republic of Korea.
, the causal agent of fire blight, poses a serious threat to several rosaceous plants, especially apples and pears. In this study, a spontaneous streptomycin-resistant strain (EaSmR) was isolated under laboratory conditions. Compared with the parental strain TS3128, the EaSmR strain exhibited high resistance to streptomycin (>100,000 µg/mL) and showed a significant reduction in both swimming and swarming motility.
View Article and Find Full Text PDFAn evaluation of pruning programs to manage shoot blight, caused by the bacterium .
Plant Dis
December 2024
Cornell University, Plant Pathology-Geneva, 630 West North Street, 221 Barton Lab, Geneva, New York, United States, 14456;
Fire blight is an economically devastating disease caused by the bacterium . Infections lead can shoot blight and, when unmanaged, become systemic and can quickly cause tree death and spread through an orchard via active infections sites producing bacterial ooze. With climate change, increasingly popular high-density training systems, and the susceptibility of many consumers desired apple cultivars, shoot blight management has become exceptionally challenging despite the diverse management tactics available.
View Article and Find Full Text PDFOptimization of the large-scale production for Erwinia amylovora bacteriophages.
Microb Cell Fact
December 2024
Laboratory of Aquatic Biomedicine, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul, 08826, Republic of Korea.
Background: Fire blight, caused by Erwinia amylovora, poses a significant threat to global agriculture, with antibiotic-resistant strains necessitating alternative solutions such as phage therapy. Scaling phage therapy to an industrial level requires efficient mass-production methods, particularly in optimizing the seed culture process. In this study, we investigated large-scale E.
View Article and Find Full Text PDFA putative gene-for-gene relationship between the effector gene and the resistance locus of × accession MAL0004.
Front Plant Sci
December 2024
Julius Kühn-Institut (JKI), Federal Research Centre for Cultivated Plants, Institute for Breeding Research on Fruit Crops, Dresden, Germany.
The bacterial pathogen causes fire blight on rosaceous plants, including apples and their wild relatives. The pathogen uses the type III secretion pathogenicity island to inject effector proteins, such as Eop1, into host plants, leading to disease phenotypes in susceptible genotypes. In contrast, resistant genotypes exhibit quantitative resistance associated with genomic regions and/or R-gene-mediated qualitative resistance to withstand the pathogen.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!