Dr. Rita Grosch
Head of Programme Area MICRO Plant-microbe systems Head of Research group MICRO.1 Principles of integrated pest Management
Phone +49 (0)33701 78207 Fax +49 (0)33701 55391 Email grosch@igzev.de
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Research Profile | |
Main research areas are plant – pathogen interactions with a particular emphasis on soil-borne pathogens such as Rhizoctonia solani and Verticillium spp.. Soil-borne pathogens are difficult to control and disease incidence and severity are affected by abiotic and biotic factors. The main goal of her research group is to determine how cultivation conditions affect the incidence and severity of soil-borne diseases (performance of monitoring) and how severity can be reduced by management practices. The group studies the impact of pathogens on plant responses at molecular and metabolomic level. RNA-seq analysis supports the improved understanding of plant and pathogen responses during the interaction process.
Several third-party funded projects have contributed to a better understanding of the development of biological control methods against diseases caused by soil-borne pathogens. Biocontrol agents to enhance plant health were studied at field scale considering the rhizosphere competence of such inoculants. Recently, the impact of long-term farming practice on soil and rhizosphere microbiome is studied within the frame of a third-party project.
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Professional appointments | |
since 2017 | Head of Programme Area 2, IGZ |
2013-2016 | Head of Department Plant Health, IGZ |
2007–2012 | Acting Head of Department Plant Health, IGZ |
Since 1993 | Scientist, Department Plant Health, IGZ |
1990–1993 | Scientist, Department of Agriculture and Horticulture, Institute of Phytomedicine at the Humboldt-Universität zu Berlin |
1982–1990 | Scientist, Institute for Crop Production at the Academy of Agricultural Science, Paulinenaue |
Education | |
1985–1990 | PhD in Phytopathology, Agriculture Faculty, Humboldt-Universität zu Berlin |
1977–1982 | Studies of Biology at the Humboldt-Universität zu Berlin
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Major engagements and other professional roles (selection) | |
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Teaching and supervision | |
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Dr. rer. nat. Rita Grosch

Dr. rer. nat.
Rita Grosch
Großbeeren
033701 - 78 207
grosch@igzev.de
Scientist
Head of PA MICRO
Ausbildung
Berufliche Tätigkeiten
Sonstige Tätigkeiten
DiControl
Implications of soil management practices and application of biocontrol strains on soil disease suppressiveness for improved soil health and sustainab...
Elucidating plant-pathogen interactions at the protein level
Soil-borne pathogenic fungi cause severe losses in crop yield and quality. In Principle, they colonize the plant root surface in response to root exud...
Mass spectrometry-based exploration of plant-associated microbial communities
Matrix-assisted laser desorption ionization (MALDI) time-of-flight (TOF) mass spectrometry (MS) is a unique tool for fast and high resolving character...
Spatial mapping of root metabolites
Plant roots secrete a wide range of compounds that govern the interaction with other organisms in the rhizosphere. In this project, the spatial distri...
Effect of long-term agricultural management on the soil microbiota influenced by the time of soil sampling
Fernandez-Gnecco G., Covacevich F., Consolo V. F., Behr J. H., Sommermann L., Moradtalab N., Maccario L., Sörensen S. J., Deubel A., Schellenberg I., Geistlinger J., Neumann G., Grosch R., Smalla K., Babin D. 2022. Effect of long-term agricultural management on the soil microbiota influenced by the time of soil sampling. Frontier sin Soil Science 2, 837508. doi: 10.3389/fsoil.2022.837508.
→The boundary layer conductance of inclined elliptical leaves under free convention
Graefe J., Grosch R., Bitterlich M. 2022. The boundary layer conductance of inclined elliptical leaves under free convention. Agricultural and Forest Meterology 317, 108884. doi,org/10.1016/j.agrformet.2022.108884.
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Distinct rhizomicrobiota assemblages and plant performance in lettuce grown in soils with different agricultural management histories
Babin D., Sommermann L., Chowdhury P. S., Behr J. H., Sandmann M., Neumann G., Nesme J., Sörensen S. J., Schellenberg I., Rothballer M., Geistlinger J., Smalla K., Grosch R. 2021. Distinct rhizomicrobiota assemblages and plant performance in lettuce grown in soils with different agricultural management histories. FEMS Microbiology Ecology 97(4), fiab027
→Genome Analyses of the Less Aggressive Rhizoctonia solani AG1-IB Isolates 1/2/21 and O8/2 Compared to the Reference AG1-IB Isolate 7/3/14
Impact of long-term organic and mineral fertilization on rhizosphere metabolites, root-microbial interactions and plant health of lettuce
Windisch S., Sommermann L., Babin D., Chowdhury P. S., Grosch R., Moradtalab N., Walker F., Höglinger B., El-Hasan A., Armbruster W., Nesme J., Sörensen S. J., Schellenberg I., Geistlinger J., Smalla K., Rothballer M., Ludewig U., Neumann G. 2021. Impact of long-term organic and mineral fertilization on rhizosphere metabolites, root-microbial interactions and plant health of lettuce. Frontiers in Microbiology 11, 597745.
https://doi.org/10.3389/fmicb.2020.597745
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Potato plant spheres and to a lesser extent the soil type influence the proportion and diversity of bacterial isolates with in vitro antagonistic activity towards Ralstonia solanacearum
Elsayed T. R., Grosch R., Smalla K. 2021. Potato plant spheres and to a lesser extent the soil type influence the proportion and diversity of bacterial isolates with in vitro antagonistic activity towards Ralstonia solanacearum. FEMS Microbiology Ecology 97(4), fiab038.
https://doi.org/10.1093/femsec/fiab038
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Role of benzoic acid and lettucenin A in the defense response of lettuce against soil-borne pathogens
Transcriptional changes in potato sprouts upon Interaction with Rhizoctonia solani indicate pathogen-induced interference in the defence pathways of potato
Zrenner R., Verwaaijen B., Genzel F., Flemer B., Grosch R. 2021. Transcriptional changes in potato sprouts upon Interaction with Rhizoctonia solani indicate pathogen-induced interference in the defence pathways of potato. International Journal of Molecular Sciences 22, 3094.
→A method for quantification of Pythium aphanidermatum in cucumber roots and suitable inoculum densities for epidemiological studies.
Kyuchukova, M.A.; Büttner, C.; Gabler, J.; Bar-Yosef, B.; Grosch, R.; Kläring, H.-P. 2006. A method for quantification of Pythium aphanidermatum in cucumber roots and suitable inoculum densities for epidemiological studies. Journal of Plant Diseases and Protection 113 (3), 113-119.
→Effectiveness of three antagonistic bacterial isolates to control Rhizoctonia solaniKühn on lettuce and potato.
Grosch, R.; Faltin, F.; Lottmann, J.; Kofot, A.; Berg, G. 2005. Effectiveness of three antagonistic bacterial isolates to control Rhizoctonia solaniKühn on lettuce and potato. Canadian Journal of Microbiology 51 (4), 345-353. →
Water quality assessment of different reservoir types in relation to nutrient solution use in hydroponics.
Schwarz, D.; Grosch, R.; Gross, W.; Hoffmann-Hergarten, S. 2005. Water quality assessment of different reservoir types in relation to nutrient solution use in hydroponics. Agricultural Water Management 71 (2), 145-166. →
Characterisation of Rhizoctonia solani anastomosis groups causing bottom rot in field grown lettuce in Germany.
Grosch, R.; Schneider, J.H.M.; Kofoet, A. 2004. Characterisation of Rhizoctonia solani anastomosis groups causing bottom rot in field grown lettuce in Germany. European Journal of Plant Pathology 110 (1), 53-62. →
Control of bottom rot on lettuce caused by Rhizoctonia solani with commercial biocontrol agents and a novel fungicide.
Grosch, R.; Koch, T.; Kofoet, A. 2004. Control of bottom rot on lettuce caused by Rhizoctonia solani with commercial biocontrol agents and a novel fungicide. Zeitschrift für Pflanzenkrankheiten und Pflanzenschutz 111 (6), 572-582. →
Strategy to select and assess antagonistic bacteria for biological control of Rhicoctonia solani Kühn.
Faltin, F.; Lottmann, J.; Grosch, R.; Berg, G. 2004. Strategy to select and assess antagonistic bacteria for biological control of Rhicoctonia solani Kühn. Canadian Journal of Microbiology 50 (10), 811-820. →
Influence of temperature, pH and inoculum density on bottom rot on lettuce caused by Rhizoctonia solani.
Grosch, R.; Kofoet, A. 2003. Influence of temperature, pH and inoculum density on bottom rot on lettuce caused by Rhizoctonia solani. Zeitschrift für Pflanzenkrankheiten und Pflanzenschutz, 110 (4), 366-378. →
Nutzung probiotischer Mikroorganismen im Gemüsebau. Gemüse 42 (5), 52-53.
Junge, H.; Grosch, R. 2006. Nutzung probiotischer Mikroorganismen im Gemüsebau. Gemüse 42 (5), 52-53.
Befall von Gurkenwurzeln mit Pythium aphanidermatum in Abhängigkeit vom pH-Wert der Nährlösung und dessen Auswirkung auf das Pflanzenwachstum.
Kyuchukova, M.; Büttner, C.; Gabler, J.; Grosch, R.; Kläring, H.-P. 2004. Befall von Gurkenwurzeln mit Pythium aphanidermatum in Abhängigkeit vom pH-Wert der Nährlösung und dessen Auswirkung auf das Pflanzenwachstum. Abstract, BDGL-Schriftenreihe 22, 75.
Endophytes: A new source for environmental biotechnology ?
Berg, G.; Krechel, A.; Faltin, F.; Ulrich, A.; Hallmann, J.; Grosch, R. 2004. Endophytes: A new source for environmental biotechnology ? Abstract, 10th International Symposium on Microbial Ecology Microbial planet: sub-surface to space. Cancun, Mexico, P16B.
Endophytes: A new source for multi-target Biological Control Agents?
Berg, G.; Krechel, A.; Lottmann, J.; Faltin, F.; Ulrich, A.; Hallmann, J.; Grosch, R. 2004. Endophytes: A new source for multi-target Biological Control Agents? WPRS Bulletin 27, 161-165.
Krankheitsunterdrückende Wirkung bakterieller Antagonisten gegen Rhizoctonia solani.
Grosch, R.; Faltin, F.; Lottmann, J.A.; Berg, G. 2004. Krankheitsunterdrückende Wirkung bakterieller Antagonisten gegen Rhizoctonia solani. Phytomedizin. 34 (3), 19-20.
Nützliche Mikroorganismen in der Nährlösung : aktuelles zu Hydroponik aus Großbeeren, Teil III.
Grosch, R. 2004. Nützliche Mikroorganismen in der Nährlösung : aktuelles zu Hydroponik aus Großbeeren, Teil III. Gemüse 40 (2), 37-38.
Bio-Seismologie: Diversität der Bodenmikroflora – eine Möglichkeit der Umweltindikation.
Ruppel, S.; Grosch, R. 2003. Bio-Seismologie: Diversität der Bodenmikroflora - eine Möglichkeit der Umweltindikation. In: Der verschwundene Hering und das Geheimnis des Regenmachers: Umweltforschung in der Leibniz-Gemeinschaft - Qualität und Vielfalt, Bonn 2003, 71-72.
Biocontrol of Rhizoctonia solani by antagonistic microorganisms.
Faltin, F.; Berg, G.; Grosch, R. 2003. Biocontrol of Rhizoctonia solani by antagonistic microorganisms. Abstract, Jahrestagung der "Vereinigung für Allgemeine und Angewandte Mikrobiologie (VAAM)", Biospektrum, Sonderausgabe, 121.
Biologische Bekämpfung von Rhizoctonia solani im ökologischen Anbau mit Hilfe von bakteriellen und pilzlichen Antagonisten.
Grosch, R.; Berg, G. 2003. Biologische Bekämpfung von Rhizoctonia solani im ökologischen Anbau mit Hilfe von bakteriellen und pilzlichen Antagonisten. Bundesprogramm Ökologischer Landbau, Kurzergebnisse laufender Projekte im Bereich Pflanzenschutz. S. 6.
Biologische Bekämpfung von Rhizoctonia solani mit Hilfe von bakteriellen und pilzlichen Antagonisten: Ergebnisse in vitro.
Faltin, F.; Grosch, R.; Berg, G. 2003. Biologische Bekämpfung von Rhizoctonia solani mit Hilfe von bakteriellen und pilzlichen Antagonisten: Ergebnisse in vitro. Phytomedizin 33 (2), 63.
Characterisation of Rhizoctonia solani infecting lettuce in Germany.
Grosch, R.; Schneider, J.H.M.; Kofoet, A. 2003. Characterisation of Rhizoctonia solani infecting lettuce in Germany. Annual meeting of Canadian Phytopathological Society, Abstract book, 36-37.
Die Wirkung der Inokulumdichte von Pythium aphanidermatum auf die Epidemiologie bei Gurke bei verschiedenen Temperaturen.
Kyuchukova, M.; Büttner, C.; Gabler, J.; Grosch, R.; Kläring, H.-P. 2003. Die Wirkung der Inokulumdichte von Pythium aphanidermatum auf die Epidemiologie bei Gurke bei verschiedenen Temperaturen. Tagungsband, 4. Symposium Phytomedizin und Pflanzenschutz im Gartenbau, Wien, Österreich, 119-120.
Hydroponische Anbauverfahren : aktuelles zu Hydroponik aus Großbeeren, Teil I.
Schwarz, D.; Claussen, W.; Brückner, B.; Grosch, R.; Kläring, H.-P.; Krumbein, A. 2003. Hydroponische Anbauverfahren : aktuelles zu Hydroponik aus Großbeeren, Teil I. Gemüse 39 (12), 20-22.