Divergent Outcomes of Direct Conspecific Pathogen Strain Interaction and Plant Co-Infection Suggest Consequences for Disease Dynamics

2023/02/07 by Hadjer Bellah, Nicolas F. Seiler, Daniel Croll · 1 voice
Agricultural and Biological Sciences · Biochemistry, Genetics and Molecular Biology · #Wheat and Barley Genetics and Pathology #Evolution and Genetic Dynamics #Plant-Microbe Interactions and Immunity

paper · pdf · doi:10.1128/spectrum.04443-22

openalex publication_date 2023/02/07 · openalex created_date 2025/10/10 · openalex updated_date 2026/06/20

Abstract

. The pathogen persists in the environment before infecting plant leaves early in the growing season. Leaves are typically colonized by a multitude of strains. Strains cultured in pairs without host were growing differently compared to strains cultured alone. Wheat leaves infected either with single or pairs of strains, we found also highly variable outcomes. Interactions between strains outside of the host were only poorly explaining how strains would interact when on the host, suggesting that pathogen strains engage in complex interactions dependent on the environment. Better understanding within-species interactions will improve our ability to manage crop infections.

Citations

• Simultaneous Inference in General Parametric Models
• Concomitant infections, parasites and immune responses
• Ranking Quantitative Resistance to Septoria tritici Blotch in Elite Wheat Cultivars Using Automated Image Analysis
• A tradeoff between tolerance and resistance to a major fungal pathogen in elite wheat cultivars

Discussions

• Divergent outcomes of direct conspecific pathogen strain [#Zymoseptoria tritici] interaction and plant [#wheat] co-infection suggest consequences for disease dynamics doi.org/10.1128/spectr… [bsky, 0 points, 0 comments]