Ellerbeck M, Schüßler A, Brucker D, Dafinger C, Loos F, Brachmann A (2013) Characterization of three ammonium transporters of the glomeromycotan fungus Geosiphon pyriformis. Eukaryotic Cell 12: 1554-1562

Schüßler A, Walker C (2011) Evolution of the 'plant-symbiotic' fungal phylum, Glomeromycota. In: The Mycota XIV - Evolution of Fungi and Fungal-like Organisms. S. Pöggeler, J. Wöstemeyer (eds) Springer-Verlag Berlin Heidelberg, pp 163-185.

Schüßler A, Martin H, Cohen D, Wipf D (2008) The Geosiphon-Nostoc symbiosis as a tool to characterize symbiotic nutrient transporters in the arbuscular mycorrhiza symbiosis. In: Biology of Molecular Plant-Microbe Interactions, Volume 6 (Paper 24). Lorito M, Woo S, Scala F (eds.). International Society for Molecular Plant-Microbe Interactions, St. Paul, MN, pp 1-6.

Schüßler A, Martin H, Cohen D, Fitz M, Wipf D (2007) Arbuscular mycorrhiza - studies on the Geosiphon symbiosis lead to the characterization of the first glomeromycotan sugar transporter. Plant Signaling & Behavior 2(5): 431-434 [Full text PDF from publisher, free]

Hibbett DS, et al., Schüßler A, et al. (2007) A higher-level phylogenetic classification of the Fungi. Mycological Research 111: 509-547 [preprint PDF from AFTOL]

Schüßler A, Martin H, Cohen D, Fitz M, Wipf D (2006) Characterization of a carbohydrate transporter from symbiotic glomeromycotan fungi. Nature 444: 933-936 [Full text PDF and supplementary]

James TY, Kauff F, Schoch C, Matheny B, Hofstetter V, Cox C, Celio G, Guiedan C, Fraker E, Miadlikowska J, Lumbsch HT, Rauhut A, Reeb V, Arnold AE, Amtoft A, Stajich JE, Hosaka K, Sung G-H, Johnson D, O’Rourke B, Crockett M, Binder M, Curtis JM, Slot JC, Wang Z, Wilson AW, Schüßler A, Longcore JE, O’Donnell K, Mozley-Standridge S, Porter D, Letcher PM, Powell MJ, Taylor JW, White MM, Griffith GW, Davies DR, Humber RA, Morton JB, Sugiyama J, Rossman AY, Rogers JD, Pfister DH, Hewitt D, Hansen K, Hambleton S, Shoemaker RA, Kohlmeyer J, Volkmann-Kohlmeyer B, Spotts RA, Serdani M, Crous PW, Hughes KW, Matsuura K, Langer E, Langer G, Untereiner WA, Lücking R, Büdel B, Geiser DM, Aptroot A, Diederich P, Schmitt I, Schultz M, Yahr R, Hibbett DS, Lutzoni F, McLaughlin DJ, Spatafora JW, Vilgalys R  (2006) Reconstructing the early evolution of the fungi using a six-gene phylogeny. Nature 443: 818-822 [Full text PDF and supplementary]

Adams DG, Bergman B, Nierzwicki-Bauer SA, Rai AN, Schüßler A (2006) Cyanobacterial-Plant Symbioses. In: The Prokaryotes. A Handbook on the Biology of Bacteria, third edition. Volume 1: Symbiotic Associations, Biotechnology, Applied Microbiology, Dworkin M, Falkow S, Rosenberg E, Schleifer K-H, Stackebrandt E (eds).  Springer, New York, pp 331-363.
(also as electronic version, In: The Prokayotes: An Evolving Electronic Resource for the Microbiological Community. Dworkin MM, Falkow S, Rosenberg E, Schleifer K-H, Stackebrandt E (eds), 3rd edition)

Schüßler A, Wolf E (2005) Geosiphon pyriformis - a glomeromycotan soil fungus forming endosymbiosis with cyanobacteria. In: In vitro culture of mycorrhizas (Soil Biology, Volume 4). Declerck S, Strullu D-G, Fortin JA (eds), Springer-Verlag Berlin Heidelberg, pp 271-289 [link to the book from publisher]

Wolf E, Schüßler A (2005) Phycobiliprotein fluorescence of Nostoc punctiforme changes during the life cycle and chromatic adaptation: characterization by spectral CLSM and spectral unmixing. Plant, Cell and Environment 28: 480-491 Abstract

Schüßler A (2004) Das fünfte Pilz-Phylum: die Glomeromycota. BIOspektrum 10 (6/04): 741-742 Full text

Walker C, Schüßler A (2004) Nomenclatural clarifications and new taxa in the Glomeromycota. Mycological Research 108: 981-982

Schüßler A (2002) Molecular phylogeny, taxonomy, and evolution of Geosiphon pyriformis and arbuscular mycorrhizal fungi. Plant and Soil 244: 75-83 Abstract

Kluge M, Mollenhauer D, Wolf E, Schüßler A (2002) The Nostoc - Geosiphon endocytobiosis. In: Cyanobacteria in Symbiosis. Rai AN, Bergman B, Rasmussen U (eds), Kluwer Academic Publishers, pp. 19-30 Abstract

Schüßler A, Schwarzott D, Walker C (2001) A new fungal phylum, the Glomeromycota: phylogeny and evolution. Mycological Research 105(12): 1413-1421 Abstract

Scheloske S, Maetz M, Schüßler A (2001) Heavy metal uptake of Geosiphon pyriforme. Nuclear Instruments and Methods in Physics Research B 181: 659-663 Abstract

Schüßler A, Kluge M (2001) Geosiphon pyriforme, an endocytosymbiosis between fungus and cyanobacteria, and its meaning as a model system for arbuscular mycorrhizal research. The Mycota IX, Hock B (ed), Springer Verlag, Berlin Heidelberg New York, pp. 151-161 Abstract

Schüßler A (2000) Glomus claroideum forms an arbuscular mycorrhiza-like symbiosis with the hornwort Anthoceros punctatus. Mycorrhiza 10: 15-21 Abstract

Maetz M, Schüßler A, Wallianos A, Traxel K (1999) Subcellular trace element distribution in Geosiphon pyriforme. Nuclear Instruments and Methods in Physics Research - B 150: 200-207 Abstract

Kluge M, Gehrig H, Mollenhauer D, Mollenhauer R, Schnepf E, Schüßler A (1997) News on Geosiphon pyriforme, an endosymbiotic consortium of a fungus with a cyanobacterium. In: Eukaryotism and symbiosis. Schenk HEA, Herrmann R, Jeon KW, Müller NE, Schwemmler W (eds), Springer-Verlag, pp. 469-476 Abstract

Schüßler A, Meyer T, Gehrig H, Kluge M (1997) Variations of lectin binding sites in extracellular glycoconjugates during the life cycle of Nostoc punctiforme, a potentially endosymbiotic cyanobacterium. European Journal of Phycology 32: 233-239 Abstract

Mollenhauer D, Mollenhauer R (1997) Endosymbiosis between Nostoc and Geosiphon pyriforme. Scientific film, Institut für den Wissenschaftlichen Film, Göttingen, Germany, Film No. C1955 (available in English and German)

Gehrig H, Schüßler A, Kluge M (1996) Geosiphon pyriforme, a fungus forming endocytobiosis with Nostoc (Cyanobacteria), is an ancestral member of the Glomales: evidence by SSU rRNA analysis. Journal of Molecular Evolution 43: 71-81 Abstract

Mollenhauer D, Mollenhauer R, Kluge M (1996) Studies on initiation and development of the partner association in Geosiphon pyriforme (Kütz.) v. Wettstein, a unique endocytobiotic system of a fungus (Glomales) and the cyanobacterium Nostoc punctiforme (Kütz.) Hariot. Protoplasma 193: 3-9

Schüßler A, Bonfante P, Schnepf E, Mollenhauer D, Kluge M (1996) Characterization of the Geosiphon pyriforme symbiosome by affinity techniques: confocal laser scanning microscopy (CLSM) and electron microscopy. Protoplasma 190: 53-67 Abstract

Schüßler A, Schnepf E, Mollenhauer D, Kluge M (1995) The fungal bladders of the endocyanosis Geosiphon pyriforme, a Glomus-related fungus: cell wall permeability indicates a limiting pore radius of only 0.5 nm. Protoplasma 185: 131-139

Bilger W, Büdel B, Mollenhauer R, Mollenhauer D (1994) Photosynthetic activity of two developmental stages of a Nostoc strain (cyanobacteria) isolated from Geosiphon pyriforme (Mycota). Journal of Phycology 30: 225-230

Kluge M, Mollenhauer D, Mollenhauer R (1994) Geosiphon pyriforme (Kützing) von Wettstein, a promising system for studying endocyanoses. Progress in Botany 55: 130-141

Mollenhauer D, Kluge M (1994) Geosiphon pyriforme. Endocytobiosis and Cell Research 10: 29-34

Schüßler A, Mollenhauer D, Schnepf E, Kluge M (1994) Geosiphon pyriforme , an endosymbiotic association of fungus and cyanobacteria: the spore structure resembles that of arbuscular mycorrhizal (AM) fungi. Botanica Acta 107: 36-45

Kluge M, Mollenhauer D, Mollenhauer R, Kape R (1992) Geosiphon pyriforme, an endosymbiotic consortium of a fungus and a cyanobacterium (Nostoc), fixes nitrogen. Botanica Acta 105: 343-344

Mollenhauer D (1992) Geosiphon pyriforme. In: Reisser W (ed) Algae and Symbiosis: Plants, Animals, Fungi, Viruses, Interactions Explored, Biopress Limited, Bristol (England), pp339-351

Kluge M, Mollenhauer D, Mollenhauer R (1991) Photosynthetic carbon assimilation in Geosiphon pyriforme (Kützing) F.v. Wettstein, an endosymbiotic association of fungus and cyanobacterium. Planta 185: 311-315

Schnepf E (1964) Zur Feinstruktur von Geosiphon pyriforme. Archiv für Mikrobiologie 49: 112-131