What question did this study set out to answer?

To investigate the infection dynamics and host-pathogen interactions of downy mildew in different strains of Arabidopsis thaliana.

May 1, 1990The Plant CellOpen Access

Arabidopsis is susceptible to infection by a downy mildew fungus.

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To investigate the infection dynamics and host-pathogen interactions of downy mildew in different strains of Arabidopsis thaliana.
Sampled wild Arabidopsis thaliana plants exhibiting natural downy mildew symptoms in Weiningen, Switzerland.
Performed artificial laboratory inoculations with the isolated Peronospora parasitica pathogen on both wild plants and the reference strain RLD to monitor fungal colonization and host cellular responses.
Inoculated wild Arabidopsis plants exhibited high susceptibility, demonstrating intercellular mycelial growth, haustoria formation, conidiophores, and both sexual (oospores, oogonia, antheridia) and asexual sporulation.
Arabidopsis strain RLD exhibited complete resistance, arresting fungal progression shortly after cellular penetration through a rapid hypersensitive reaction without producing reproductive fungal structures.

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Implication

Laboratory study reveals differential susceptibility and hypersensitive resistance to Peronospora parasitica in Arabidopsis strains, indicating potential for cloning plant disease resistance genes.

Cite This Study

Koch et al. (1990) studied this question.

synapsesocial.com/papers/6a08ee8eafc616802fe4bb05 https://doi.org/10.1105/tpc.2.5.437

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Implication

Laboratory study reveals differential susceptibility and hypersensitive resistance to Peronospora parasitica in Arabidopsis strains, indicating potential for cloning plant disease resistance genes.

Arabidopsis is susceptible to infection by a downy mildew fungus.

Key Points

Discussion

Implication

Cite This Study

Arabidopsis is susceptible to infection by a downy mildew fungus.

Key Points

Discussion

Implication

Cite This Study