We investigated indole-3-acetic acid (IAA) production by 57 pathovars of Pseudomonas syringae and related species. Most of those analyzed produced IAA, especially in the presence of tryptophan. Eight strains produced high IAA concentrations in the absence of Trp. The iaaM and iaaH genes of P. savastanoi pv. savastanoi were detected in a limited number of strains only, including the eight above-mentioned strains. Thus, IAA synthesis in most assayed strains of P. syringae and related species does not involve genes highly similar to iaaM and iaaH. In contrast, the iaaL gene encoding an IAA-lysine synthase was detected in most pathovars, and was often found on plasmids.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1094/MPMI.1998.11.2.156 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Pathovar Infection Reveals Different Defense Mechanisms in Two Sweet Cherry Cultivars.
Plants (Basel)
December 2024
Facultad de Ciencias Agronómicas, Departamento de Sanidad Vegetal, Universidad de Chile, La Pintana 8820808, Chile.
pv. is the main causal agent of bacterial canker in sweet cherry in Chile, causing significant economic losses. Cultivars exhibit diverse susceptibility in the field and the molecular mechanisms underlying the differential responses remain unclear.
View Article and Find Full Text PDFEvaluation of several strategies for controlling canker plant disease caused by .
Mol Biol Res Commun
January 2025
Department of Biotechnology, Faculty of Biological Science and Technology, University of Isfahan.
Article Synopsis
- The text discusses a gram-negative bacterium that affects various plants, highlighting the challenges in controlling its rapid spread.
- Several antimicrobial strategies are available, such as chemical agents, biological control, and innovative approaches using secondary metabolites and nanoparticles, with chemical control being the most common yet environmentally concerning.
- Combining treatments, like bacteriophages and antimicrobial peptides with secondary metabolites, could enhance effectiveness, though cost and toxicity concerns exist, suggesting low-concentration approaches may be the most beneficial.
A complete genome sequence of pathovar YM7902.
Microbiol Resour Announc
November 2024
School of Animal and Comparative Biomedical Sciences, University of Arizona, Tucson, Arizona, USA.
pathovar YM7902 was originally isolated as a pathogen of cucumber in Japan. Here, we report a nearly complete genome sequence for this strain, assembled using a hybrid approach combining Illumina paired-end reads and longer reads sequenced using technology from Oxford Nanopore.
View Article and Find Full Text PDFStrategies for the biocontrol Pseudomonas infections pre-fruit harvest.
Microb Biotechnol
October 2024
School of Life Sciences, University of Warwick, Coventry, UK.
The efficiency of global crop production is under threat from microbial pathogens which is likely to be worsened by climate change. Major contributors to plant disease are Pseudomonas syringae (P. syringae) pathovars which affect a variety of important crops.
View Article and Find Full Text PDFA qPCR assay for specific detection of pv. .
Plant Dis
September 2024
Clemson University - EREC, Plant and Environmental Sciences, 64 Research Road, Blackville, South Carolina, United States, 29817;
Pseudomonas cannabina pv. alisalensis is a gram-negative bacterium that causes bacterial leaf blight in Brassica crops, an important disease that could bring severe damage to the host plants. The aim of this study was to develop a tool that can reliably and accurately quantify P.
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!