David M. Geiser

Affiliate Researcher
Titles and Affiliations
Professor, Plant Pathology and Environmental Microbiology

Research Summary

Research focuses on the molecular evolutionary genetics of fungi, mostly in the realm of molecular phylogenetics and systematics at the species level.

In the News

Research Keywords

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Recent Publications

Diversity of Arthropods that Visit Xyris spp. (Xyridaceae): New Observations from Guyana

Torres-Cruz, T. J., Ré, L. A., Johnson, J. R., Geiser, D. M. & Skvarla, M. J., Jan 31 2024, In: Proceedings of the Entomological Society of Washington. 125, 2, p. 246-255 10 p.

Research output: Contribution to journalArticlepeer-review

Phylogenetic Diversity and Mycotoxin Potential of Emergent Phytopathogens Within the Fusarium tricinctum Species Complex

Laraba, I., Busman, M., Geiser, D. M. & O'Donnell, K., Jun 2022, In: PHYTOPATHOLOGY. 112, 6, p. 1284-1298 15 p.

Research output: Contribution to journalArticlepeer-review

DNA Sequence-Based Identification of Fusarium: A Work in Progress

O’Donnell, K., Whitaker, B. K., Laraba, I., Proctor, R. H., Brown, D. W., Broders, K., Kim, H. S., McCormick, S. P., Busman, M., Aoki, T., Torres-Cruz, T. J. & Geiser, D. M., Jun 2022, In: Plant disease. 106, 6, p. 1597-1609 13 p.

Research output: Contribution to journalArticlepeer-review

Fusarium abutilonis and F. guadeloupense, two novel species in the Fusarium buharicum clade supported by multilocus molecular phylogenetic analyses

O’Donnell, K., Gräfenhan, T., Laraba, I., Busman, M., Proctor, R. H., Kim, H. S., Wiederhold, N. P., Geiser, D. M. & Seifert, K. A., 2022, In: Mycologia. 114, 4, p. 682-696 15 p.

Research output: Contribution to journalArticlepeer-review

FUSARIUM-ID v.3.0: An Updated, Downloadable Resource for Fusarium Species Identification

Torres-Cruz, T. J., Whitaker, B. K., Proctor, R. H., Broders, K., Laraba, I., Kim, H. S., Brown, D. W., O’Donnell, K., Estrada-Rodríguez, T. L., Lee, Y. H., Cheong, K., Wallace, E. C., McGee, C. T., Kang, S. & Geiser, D. M., Jun 2022, In: Plant disease. 106, 6, p. 1610-1616 7 p.

Research output: Contribution to journalArticlepeer-review

Three novel Ambrosia Fusarium Clade species producing multiseptate “dolphin-shaped” conidia, and an augmented description of Fusarium kuroshium

Aoki, T., Liyanage, P. N. H., Konkol, J. L., Ploetz, R. C., Smith, J. A., Kasson, M. T., Freeman, S., Geiser, D. M. & O’Donnell, K., 2021, In: Mycologia. 113, 5, p. 1089-1109 21 p.

Research output: Contribution to journalArticlepeer-review

Phylogenomic analysis of a 55.1-kb 19-gene dataset resolves a monophyletic fusarium that includes the fusarium solani species complex

Geiser, D. M., Al-Hatmi, A. M. S., Aoki, T., Arie, T., Balmas, V., Barnes, I., Bergstrom, G. C., Bhattacharyya, M. K., Blomquist, C. L., Bowden, R. L., Brankovics, B., Brown, D. W., Burgess, L. W., Bushley, K., Busman, M., Cano-Lira, J. F., Carrillo, J. D., Chang, H. X., Chen, C. Y., Chen, W., & 148 othersChilvers, M., Chulze, S., Coleman, J. J., Cuomo, C. A., Wilhelm de Beer, Z., Sybren de Hoog, G., Castillo-Munera, J. D., Del Ponte, E. M., Dieguez-Uribeondo, J., Pietro, A. D., Edel-Hermann, V., Elmer, W. H., Epstein, L., Eskalen, A., Esposto, M. C., Everts, K. L., Fernandez-Pavıa, S. P., da Silva, G. F., Foroud, N. A., Fourie, G., Frandsen, R. J. N., Freeman, S., Freitag, M., Frenkel, O., Fuller, K. K., Gagkaeva, T., Gardiner, D. M., Glenn, A. E., Gold, S. E., Gordon, T. R., Gregory, N. F., Gryzenhout, M., Guarro, J., Gugino, B. K., Gutierrez, S., Hammond-Kosack, K. E., Harris, L. J., Homa, M., Hong, C. F., Hornok, L., Huang, J. W., Ilkit, M., Jacobs, A., Jacobs, K., Jiang, C., del Mar Jimenez-Gasco, M., Kang, S., Kasson, M. T., Kazan, K., Kennell, J. C., Kim, H. S., Corby Kistler, H., Kuldau, G. A., Kulik, T., Kurzai, O., Laraba, I., Laurence, M. H., Lee, T., Lee, Y. W., Lee, Y. H., Leslie, J. F., Liew, E. C. Y., Lofton, L. W., Logrieco, A. F., Lopez-Berges, M. S., Luque, A. G., Lysøe, E., Ma, L. J., Marra, R. E., Martin, F. N., May, S. R., McCormick, S. P., McGee, C., Meis, J. F., Migheli, Q., Mohamed Nor, N. M. I., Monod, M., Moretti, A., Mostert, D., Mule, G., Munaut, F., Munkvold, G. P., Nicholson, P., Nucci, M., O’Donnell, K., Pasquali, M., Pfenning, L. H., Prigitano, A., Proctor, R. H., Ranque, S., Rehner, S. A., Rep, M., Rodrıguez-Alvarado, G., Rose, L. J., Roth, M. G., Ruiz-Roldan, C., Saleh, A. A., Salleh, B., Sang, H., Scandiani, M. M., Scauflaire, J., Schmale, D. G., Short, D. P. G., Sisic, A., Smith, J. A., Smyth, C. W., Son, H., Spahr, E., Stajich, J. E., Steenkamp, E., Steinberg, C., Subramaniam, R., Suga, H., Summerell, B. A., Susca, A., Swett, C. L., Toomajian, C., Torres-Cruz, T. J., Tortorano, A. M., Urban, M., Vaillancourt, L. J., Vallad, G. E., van der Lee, T. A. J., Vanderpool, D., van Diepeningen, A. D., Vaughan, M. M., Venter, E., Vermeulen, M., Verweij, P. E., Viljoen, A., Waalwijk, C., Wallace, E. C., Walther, G., Wang, J., Ward, T. J., Wickes, B. L., Wiederhold, N. P., Wingfield, M. J., Wood, A. K. M., Xu, J. R., Yang, X. B., Yli-Mattila, T., Yun, S. H., Zakaria, L., Zhang, H., Zhang, N., Zhang, S. X. & Zhang, X., Jul 2021, In: PHYTOPATHOLOGY. 111, 7, p. 1064-1079 16 p.

Research output: Contribution to journalArticlepeer-review

Erratum: Phylogenetic diversity, trichothecene potential, and pathogenicity within Fusarium sambucinum species complex (PLoS ONE (2021) 16:1 (e0245037) DOI: 10.1371/journal.pone.0245037)

Laraba, I., McCormick, S. P., Vaughan, M. M., Geiser, D. M. & O'Donnell, K., Apr 2021, In: PloS one. 16, 4 April, e0250812.

Research output: Contribution to journalComment/debatepeer-review

Phylogenetic diversity, trichothecene potential, and pathogenicity within Fusarium sambucinum species complex

Laraba, I., McCormick, S. P., Vaughan, M. M., Geiser, D. M. & O’Donnell, K., Jan 2021, In: PloS one. 16, 1 January, e0245037.

Research output: Contribution to journalArticlepeer-review

Author Correction: Fungal taxonomy and sequence-based nomenclature (Nature Microbiology, (2021), 6, 5, (540-548), 10.1038/s41564-021-00888-x)

Lücking, R., Aime, M. C., Robbertse, B., Miller, A. N., Aoki, T., Ariyawansa, H. A., Cardinali, G., Crous, P. W., Druzhinina, I. S., Geiser, D. M., Hawksworth, D. L., Hyde, K. D., Irinyi, L., Jeewon, R., Johnston, P. R., Kirk, P. M., Malosso, E., May, T. W., Meyer, W., Nilsson, H. R., & 8 othersÖpik, M., Robert, V., Stadler, M., Thines, M., Vu, D., Yurkov, A. M., Zhang, N. & Schoch, C. L., Jul 2021, In: Nature Microbiology. 6, 7, p. 971 1 p.

Research output: Contribution to journalComment/debatepeer-review

Fungal taxonomy and sequence-based nomenclature

Lücking, R., Aime, M. C., Robbertse, B., Miller, A. N., Aoki, T., Ariyawansa, H. A., Cardinali, G., Crous, P. W., Druzhinina, I. S., Geiser, D. M., Hawksworth, D. L., Hyde, K. D., Irinyi, L., Jeewon, R., Johnston, P. R., Kirk, P. M., Malosso, E., May, T. W., Meyer, W., Nilsson, H. R., & 8 othersÖpik, M., Robert, V., Stadler, M., Thines, M., Vu, D., Yurkov, A. M., Zhang, N. & Schoch, C. L., May 2021, In: Nature Microbiology. 6, 5, p. 540-548 9 p.

Research output: Contribution to journalReview articlepeer-review

Unambiguous identification of fungi: Where do we stand and how accurate and precise is fungal DNA barcoding?

Lücking, R., Aime, M. C., Robbertse, B., Miller, A. N., Ariyawansa, H. A., Aoki, T., Cardinali, G., Crous, P. W., Druzhinina, I. S., Geiser, D. M., Hawksworth, D. L., Hyde, K. D., Irinyi, L., Jeewon, R., Johnston, P. R., Kirk, P. M., Malosso, E., May, T. W., Meyer, W., Öpik, M., & 7 othersRobert, V., Stadler, M., Thines, M., Vu, D., Yurkov, A. M., Zhang, N. & Schoch, C. L., Jul 10 2020, In: IMA Fungus. 11, 1, 33.

Research output: Contribution to journalArticlepeer-review

Evolutionary relationships among Massospora spp. (Entomophthorales), obligate pathogens of cicadas

Macias, A. M., Geiser, D. M., Stajich, J. E., Łukasik, P., Veloso, C., Bublitz, D. A. C., Berger, M. C., Boyce, G. R., Hodge, K. & Kasson, M. T., 2020, In: Mycologia. 112, 6, p. 1060-1074 15 p.

Research output: Contribution to journalArticlepeer-review

No to neocosmospora: Phylogenomic and practical reasons for continued inclusion of the fusarium solani species complex in the genus fusarium

O'Donnell, K., Al-Hatmi, A. M. S., Aoki, T., Brankovics, B., Cano-Lira, J. F., Coleman, J. J., de Hoog, G. S., Di Pietro, A., Frandsen, R. J. N., Geiser, D. M., Gibas, C. F. C., Guarro, J., Kim, H. S., Kistler, H. C., Laraba, I., Leslie, J. F., López-Berges, M. S., Lysøe, E., Meis, J. F., Monod, M., & 17 othersProctor, R. H., Rep, M., Ruiz-Roldán, C., Šišić, A., Stajich, J. E., Steenkamp, E. T., Summerell, B. A., van der Lee, T. A. J., van Diepeningen, A. D., Verweij, P. E., Waalwijk, C., Ward, T. J., Wickes, B. L., Wiederhold, N. P., Wingfield, M. J., Zhang, N. & Zhang, S. X., Sep 1 2020, In: mSphere. 5, 5, e00810.

Research output: Contribution to journalArticlepeer-review

Three novel Ambrosia Fusarium Clade species producing clavate macroconidia known (F. floridanum and F. obliquiseptatum) or predicted (F. tuaranense) to be farmed by Euwallacea spp. (Coleoptera: Scolytinae) on woody hosts

Aoki, T., Smith, J. A., Kasson, M. T., Freeman, S., Geiser, D. M., Geering, A. D. W. & O’Donnell, K., Nov 2 2019, In: Mycologia. 111, 6, p. 919-935 17 p.

Research output: Contribution to journalArticlepeer-review