Salinated soils become a more and more ecological and economical relevant problem world-wide. In former studies we showed that Stenotrophomonas rhizophila P69 (DSM 14405) is able to promote plant growth and to protect plants against soil-borne pathogens in salinated soils. The mode of interaction is only partly understood, especially under salt stress. Preliminary results show a strong influence of salt on the antagonistic and plant growth promoting activity. For survival in salted habitats, the synthesis of osmoprotective substances is important. For S. rhizophila synthesis of the osmolytes trehalose and glucosylglycerol was demonstrated. In the proposed project we aim to investigate the interactions between S. rhizophila with plants and the influence of salt stress and osmolyte synthesis. Further studies focus on the interactions between S. rhizophila and the phytopathogenic fungus Verticillium. For these experiments molecular techniques in combination with confocal laser scanning microscopy will be applied. The knowledge gained in this project will result in novel and environmental friendly and efficient strategies to control pathogens in salinated soils.
|Effective start/end date||1/03/08 → 28/02/11|
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