Before joining the Bruns lab, Dirk was a PhD student and postdoc in Dr. Dietrich Werner's lab at Philipps-Universität in Marburg, Germany.
While in the Bruns lab from May 1997 through July 2000, he worked on the molecular phylogeny and identification of Arbuscular Mycorrhizal (AM) Fungi. Using 18S rDNA and ITS sequences, he characterized a group of AM fungi that are only distantly related to the previously analyzed families and constitute deeply divergent lineages of the AM fungi. These fungi are difficult to detect both with conventional staining methods and previously designed molecular tools. Therefore specific PCR primers were designed for these lineages and other subgroups of the AM fungi to facilitate detection of symbionts within roots. Morphological descriptions of some of the ancestral lineages that have been analyzed can be found on the INVAM website. Two new genera, Archaeospora and Paraglomus, were established for them, each in a new family.
Dirk also studied the phylogeny of "Sclerocystis" species. As a consequence of the results, the last species of Sclerocystis was placed in Glomus. A 5.8S dataset he compiled allows one to check ITS sequences for the organism they originate from.
Dirk was also working on a project about genet sizes of ectomycorrhizal fungi, characterizing populations of Russula, Lactarius and Suillus in field sites in Northern California.
In addition, he was involved in a project studying the oldest known fungal fossils from the Ordovician (460 million years ago).
From August to October 2000, he conducted experiments in Dave Rizzo's lab at the University of California at Davis.
In January 2001, Dirk started a job at the University of Basel (Switzerland), where he studies the ecology of AM fungi.
In September 2009, Dirk will joined the faculty at the University of Burgundy in Dijon, France.
- BÖRSTLER, B., RAAB, P.A., THIERY, O., MORTON, J.B., REDECKER, D. 2008. Genetic diversity of the arbuscular mycorrhizal fungus Glomus intraradices as determined by mitochondrial large subunit rRNA gene sequences is considerably higher than previously expected. New Phytologist 180: 452-465.
- APPOLONI S., LEKBERG Y., TERCEK M. T., ZABINSKI, C. A., REDECKER, D. 2008. Molecular community analysis of arbuscular mycorrhizal fungi in roots of geothermal soils in Yellowstone National Park (USA). Microbial Ecology 56: 649-559.
- MATHIMARAN, N., FALQUET, L., INEICHEN, K., PICARD, C., REDECKER, D., BOLLER, T., WIEMKEN, A. 2008. Microsatellites for disentangling underground networks: Strain-specific identification of Glomus intraradices, an arbuscular mycorrhizal fungus. Fungal Genetics and Biology 45: 812-817.
- SYKOROVA, Z., WIEMKEN, A., REDECKER, D. 2007. Co-occurring Gentiana verna and Gentiana acaulis and their neighboring plants in two Swiss upper montane meadows harbor distinct arbuscular mycorrhizal fungal communities. Applied and Environmental Microbiology 73: 5426-5434.
- SYKOROVA, Z., INEICHEN, K. WIEMKEN, A., REDECKER, D. 2007. The cultivation bias: different communities of arbuscular mycorrhizal fungi detected in roots from the field, from bait plants transplanted to the field, and from a greenhouse trap experiment. Mycorrhiza 18: 1-14.
- REDECKER, D., RAAB, P., OEHL, F., CAMACHO, F.J., COURTECUISSE, R. 2007. A novel clade of sporocarp-forming glomeromycotan fungi in the Diversisporales lineage. Mycological Progress 6: 35-44.
- REDECKER, D., RAAB, P. 2006. Phylogeny of the Glomeromycota (arbuscular mycorrhizal fungi): recent developments and new gene markers. Mycologia 98: 885-895.
- HIJRI I., Z. SYKOROVA, F. OEHL, K. INEICHEN, P. MÄDER, A. WIEMKEN, D. REDECKER. 2006. Communities of arbuscular mycorrhizal fungi in arable soils are not necessarily low in diversity. Molecular Ecology 15(8): 2277-2289.
- OEHL, F., Z. SYKOROVA, D. REDECKER, A. WIEMKEN, E. SIEVERDING. 2006. Acaulospora alpina, a new arbuscular mycorrhizal fungal species characteristic for high mountainous and alpine regions of the Swiss Alps. Mycologia 98(2): 286-294.
- RAAB, P., A. BRENNWALD, D. REDECKER. 2005. Mitochondrial large ribosomal subunit sequences are homogeneous within isolates of Glomus (arbuscular mycorrhizal fungi, Glomeromycota). Mycol. Research 109: 1315-1322.
- ROESTI, D. , K. INEICHEN, O. BRAISSANT, D. REDECKER, A. WIEMKEN, M. ARAGNO. 2005. Bacteria associated with spores of arbuscular mycorrhizal fungi Glomus geosporum and Glomus constrictum. Applied and Environmental Microbiology 71: 6673-6679.
- OEHL, F., D. REDECKER E. SIEVERDING. 2005. Glomus badium, a new sporocarpic mycorrhizal fungal species from european grasslands with higher soil pH. J. Appl. Bot. 79: 38-43.
- Redecker, D., Hijri, I., Wiemken, A. 2003. Molecular identification of arbuscular mycorrhizal fungi in roots: Perspectives and problems. Folia Geobotanica 38: 113-124.
- Redecker, D., Kodner, R., Graham, L.E.. 2002. Palaeoglonius grayi from the Ordovician. Mycotaxon 84: 33-37.
- Redecker, D. 2002. Molecular identification and phylogeny of arbuscular mycorrhizal fungi. Plant & Soil 244: 67-73.
- Hijri, M., Redecker, D., Petetot, J., Voigt, K., Wostemeyer, J., Sanders, I.R. 2002. Identification and isolation of two ascomycete fungi from spores of the arbuscular mycorrhizal fungus Scutellospora castanea. Applied & Environmental Microbiology 68: 4567-4573.
- Redecker, D. 2002. New views on fungal evolution based on DNA markers and the fossil record [Review]. Research in Microbiology 153: 125-130.
- Martin I. Bidartondo, Dirk Redecker, Isabelle Hijrl, Andres Wiemken, Thomas D. Bruns, Laura Dominguez, Alicia Sersic, Jonathan R. Leake and David J. Read. 2002. Epiparasitic plants specialized on arbuscular mycorrhizal fungi. Nature 419: 389-392. News & Views commentary: Hibbett, D.S., Nature 419: 345-346.
- BRUNS, T., J. TAN, T. M. SZARO, M. BIDARTONDO, D. REDECKER. 2002. Survival of Suillus pungens and Amanita francheti ectomycorrhizal genets was rare or absent after a stand-replacing wildfire. New Phytologist 155(3): 517-523.
- D. REDECKER, T. M. SZARO, R. J. BOWMAN & T. D. BRUNS. 2001. Small genets of Lactarius xanthogalactus, Russula cremoricolor and Amanita francheti in late-stage ectomycorrhizal successions. Molecular Ecology 10(4): 1025-1034.
- MORTON, J. B., D. REDECKER (2001): Two new families of Glomales, Archaeosporaceae and Paraglomaceae, with two new genera, Archaeospora and Paraglomus, based on concordant molecular and morphological characters. Mycologia 93: 181-195 (abstract available).
- REDECKER, D., R. KODNER, L. E. GRAHAM (2000): Glomalean fungi from the Ordovician. Science 289: 1920-1921. (see press release)
- REDECKER, D. (2000): Specific PCR primers to identify arbuscular mycorrhizal fungi (Glomales) within colonized roots. Mycorrhiza 10: 73-80 (abstract available).
- REDECKER, D., J.B.MORTON, T. D. BRUNS (2000): Ancestral lineages of arbuscular mycorrhizal fungi. Molecular Phylogenetics and Evolution, 14: 276-284 (abstract available).
- REDECKER, D., J. B. MORTON, T. D. BRUNS (2000) Molecular phylogeny of the arbuscular mycorrhizal fungi Glomus sinuosum and Sclerocystis coremioides. Mycologia 92: 282-285 (abstract available).
- REDECKER, D., M. HIJRI, H. DULIEU, I.R.SANDERS (1999) Phylogenetic analysis of a dataset of fungal 5.8S rDNA sequences shows that highly divergent copies of Internal Transcribed Spacers reported from Scutellospora castanea are of Ascomycete origin. Fungal Genetics and Biology 28, 238-244 (abstract and dataset available)
- REDECKER, D., I.S.FEDER, P. VINUESA, T. BATINIC, U. SCHULZE, K. KOSCH, D. WERNER (1999): Biocontrol strain Pseudomonas sp. W34: specific detection and quantification in the rhizosphere of Cucumis sativus with a DNA probe and genotypic characterization by DNA fingerprinting. Zeitschrift für Naturforschung 54c: 359-370. (abstract available).
- REDECKER, D., H. THIERFELDER, D. WERNER (1998): Production of biomass of arbuscular mycorrhizal fungi in the glass bead compartment system. In: Mycorrhiza manual (Ed.: A. Varma). Springer Verlag, Berlin/Heidelberg/New York, 495-498.
- REDECKER, D., H. THIERFELDER, C. WALKER, D. WERNER (1997): Restriction analysis of PCR-amplified internal transcribed spacers (ITS) of ribosomal DNA as a tool for species identification in different genera of the Glomales. Applied and Environmental Microbiology 63: 1756-1761.
- REDECKER, D., P. v. BERSWORDT-WALLRABE, D. P. BECK, D. WERNER (1997): Influence of inoculation with arbuscular mycorrhizal fungi on the 15N/14N ratio in Phaseolus vulgaris. Biology and Fertility of Soils 24: 344-346.
- REDECKER, D., W. STREIT, H. THIERFELDER, A. PARRA, D.P. BECK and D. WERNER (1996): Interactions between vesicular-arbuscular fungi and rhizobia in the symbiosis withPhaseolus vulgaris. In: Mycorrhizas in integrated systems from genes to plant development. (C. Azcon-Aguilar, J.M.Barea, eds.) Office for official publications of the European Communities, Luxembourg, 653-656.
- ABRECHT, H., D. REDECKER, H. THIERFELDER and D. WERNER (1996): Alpha-Mannosidase activity increase in the arbuscular mycorrhizal symbiosis of Allium schoenoprasum. Mycorrhiza 6: 31- 34.
- REDECKER, D., H. THIERFELDER and D. WERNER (1995): A new cultivation system for arbuscular mycorrhizal fungi on glass beads. Angew. Bot. 69: 189-191
- REDECKER, D., W. WEHRMEYER, W. REUTER (1993): Core substructure of the hemiellipsoidal phycobilisome from the red alga Porphyridium cruentum. European Journal of Cell Biology 62: 442-450.
Watch the ritual dance of the Western Mycologists at their June 2000 foray in the Sierra Nevada and their most amazing discovery. Or check out the whole range of research done during that field trip.
and the other side of Dirk...
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