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May 2026

Inoculation of winter wheat with a plant growth-promoting bacterium

Wheat grain with bacterium coating

Winter wheat seeds inoculated with the plant growth-promoting bacterium Hartmannibacter diazotrophicus
(Photo: Santiago Quiroga)

Sequence of images shows seed coating

Process of seed inoculation with the bacteria and gum arabic
(Graphic: Santiago Quiroga)

Santiago Quiroga, David Rosado-Porto, Stefan Ratering, Azin Rekowski, Franz Schulz, Marina Krutych, Christian Zörb, Sylvia Schnell, Long-term detection of Hartmannibacter diazotrophicus on winter wheat and spring barley roots under field conditions revealed positive correlations on yield parameters with the bacterium abundance, FEMS Microbiology Ecology, Volume 100, Issue 3, March 2024, fiae023
https://doi.org/10.1093/femsec/fiae023

Santiago Quiroga, Stefan Ratering, David Rosado-Porto, Azin Rekowski, Franz Schulz, Christian Zörb, Sylvia Schnell, Seed inoculation of Hartmannibacter diazotrophicus does not alter the rhizosphere bacterial microbiome of wheat and barley in a three-year field trial,
Applied Soil Ecology, Volume 206, 2025, 105823
https://doi.org/10.1016/j.apsoil.2024.105823

For further information:
Prof. Dr. Sylvia Schnell, General and Applied Soil Microbiology