Mark Buchheim

-B.A., Wartburg College
-M.S., Iowa State University
-Ph.D., The University of Illinois (Urbana)

Office: 312 Oliphant Hall
Phone: (918) 631-3833

Research Interests:
My current research interests are focused on the reconstruction of phylogeny of the genus Chlamydomonas and its allies (including Carteria, Haematococcus, Chloromonas, and Chlorococcum). In addition, I am studying the enigmatic group of green algae known as the Sphaeropleaceae. As a consequence of my diverse green algal interests, I remain interested in reconstructing the phylogeny of the "big picture" for the Chlorophyceae, in particular, and the Chlorophyta, in general. Analyses of nuclear-encoded ribosomal RNA gene sequences (18S, 26S and ITS) and chloroplast-encoded rbcL are being used to infer phylogenetic relationships. Lastly, I served as PI and member of the Executive Committee of Deep Green, a USDA/NSF/DOE-funded project (1994-2000) involving the coordination of research effort in green plant phylogeny (i.e., the study of phylogenetic relationships among the major green algal and embryophyte lineages).

I am currently working to develop both funding and outreach for
deepestgreen, a coordinated research effort for the phylogenetic investigation of the Chlorophyta. The Chlorophyta is one of two branches of the Viridiplantae (Green Plant) lineage. The Chlorophyta includes extant members that possess a fossil record that extends back into the Precambrian.

Teaching Fields:

  • Biol 1604-Biological Diversity
  • Biol 3314-Fungi and Algae
  • Biol 3524-Plant Systematics
  • Biol 3504-Higher Plants 

Selected Publications:

  • Buchheim, M.A. & Chapman, R.L. 1992. Phylogeny of Carteria (Chlorophyta) inferred from molecular and organismal data. Journal of Phycology 28(3): 362-374.
  • Chapman, R.L. & Buchheim, M.A. 1992. Green algae and the evolution of land plants: Inferences from nuclear-encoded rRNA gene sequences. BioSystems 28:127-137.
  • Mishler, B.D., Lewis, L.A., Buchheim, M.A., Renzaglia, K.S., Garbary, D.J., Delwiche, C.F., Zechman, F.W., Kantz, T.S., Chapman, R.L. 1994. Phylogenetic relationships of the "green algae" and "bryophytes". Annals of the Missouri Botanical Garden 81(3) 451-483.
  • Buchheim, M. A., McAuley, M. A., Zimmer, E. A., Theriot, E. C. & Chapman, R. L. 1994. Multiple origins of colonial green flagellates from unicells: Evidence from molecular and organismal characters. Molecular Phylogenetics and Evolution 3:322-343.
  • Buchheim, M. A., Lemieux, C., Otis, C., Gutell, R.R., Chapman, R. L. and Turmel, M. 1996. Phylogeny of the Chlamydomonadales (Chlorophyceae): A comparison of ribosomal RNA gene sequences from the nucleus and the Chloroplast. Molecular Phylogenetics and Evolution 5:391-402.
  • Buchheim, M. A., Buchheim, J. A. & Chapman, R. L. 1997a. Phylogeny of Chloromonas (Chlorophyceae): A study of 18S rRNA gene sequences. Journal of Phycology 33:286-293.
  • Buchheim, M. A., Buchheim, J. A. & Chapman, R. L. 1997b. Phylogeny of the VLE-14 Chlamydomonas (Chlorophyceae)group: A study of 18S rRNA gene sequences. Journal of Phycology 33:1024-1030.
  • Chapman, R. L., Buchheim, M. A., Delwiche, C. F., Friedl, T., Huss, V. A. R., Karol, K. G., Lewis, L. A., Manhart, J., McCourt, R. M., Olsen, J. L., and Waters, D. A. 1998. Molecular systematics of the green algae. In (Soltis, Soltis, and Doyle, Eds.): Molecular Systematics of Plants II. Kluwer Academic Publisher, Boston, 574 pp.
  • Buchheim, M. A., Michalopulos, E. A., & Buchheim, J. A. 2001. Phylogeny of the Chlorophyceae with special reference to the Sphaeropleales: A study of 18S and 26S rDNA data. Journal of Phycology 37:819-35.
  • Wolf, M., Buchheim, M., Hegewald, E., Krienitz, L. & Hepperle, D. 2002. Phylogenetic position of the Sphaeropleaceae (Chlorophyta). Plant Systematics and Evolution 230:161-71. 
  • Caton, T. M. Witte, L. R, Ngyuen, H. D., Buchheim, J. A., Buchheim, M. A., & Schneegurt, M.
    A. 2004. Halotolerant Aerobic Heterotrophic Bacteria from the Great Salt Plains of
    Oklahoma. Microbial Ecology 48:449-62. Online:
  • Fawley, M. W., Fawley, K. P. & Buchheim, M. A. 2004. Molecular diversity among communities of freshwater microchlorophytes. Microbial Ecology 48:489-99. Online:
  • Henley, W. J., Hironaka, .J. L., L. Guillou, L., Buchheim, M. A. Buchheim, J. A., Fawley, M. W. & Fawley, K. P. 2004. Phylogenetic analysis of the “Nannochloris-like” algae and diagnoses of Picochlorum oklahomensis gen. et sp. nov. (Trebouxiophyceae, Chlorophyta). Phycologia 43(6): 641-652.
  • Wilson, C., Caton, T.M., Buchheim, J.A., Buchheim, M.A., Schneegurt, M.A. & Miller, R.V. 2004. DNA-repair potential in Halomonas spp. from the Salt Plains Microbial Observatory of Oklahoma. Microbial Ecology 48:541-549.
  • Buchheim, M. A., Buchheim, J. A., *Carlson, T., Braband, A., Hepperle, D., Krienitz, L., Wolf,
  • M., & Hegewald, E. 2005. Phylogeny of the Hydrodictyaceae (Chlorophyceae): Inferences from rDNA data. Journal of Phycology 41:1039-1054.

Senior Scientific Staff:

  • Julie A. Buchheim, Research Associate (M.S. 1987 [The University of Illinois at Urbana-Champaign])

Research Students and Projects:

  • Tonya Leonard (B.S. 1997): Phylogeny of Heterothallic Chlamydomonad species
  • Kami Rynders (M.S. 1997): Phylogeny of the Chlamydomonadales
  • Jenny Michalopulos (B.S. 1997, M.S. 1998): Phylogeny of the Chlorophyceae
  • Karen Jacobsmeyer (B.S. 1998, Senior Research): Phylogeny of Psychrophilic Chlamydomonad species
  • Joanna Michalopulos (B.S. 2000, TURC, Honors, Senior Research): Phylogeny of the genus Chlorococcum
  • Andrew Moreland (B.S. 1999, undergraduate student, Honors, Senior Research): Phylogeny of the Tetrasporales.
  • Wei Zheng (M.S. 2000): Physiology and Phylogeny of Bacillus.
  • Tracy Carlson (B. S. 2003, TURC, Goldwater Scholar [2002-3]): Phylogeny of the genus Pediastrum (Chlorophyceae).
  • Chrissy Pachnick (B.S. 2003): Phylogeny of the Chlorophyta: A Study of the rbcL Gene.
  • Mariah Veit (B.S. 2005): Diversity of Chlamydomonads at Itasca State Park. * Bindhu Verghese (Ph.D. 2007 [projected): Phylogeny and Molecular Evolution: The Classes Chlorophyceae and Trebouxiophyceae

Other Responsibilities:

  • Member, Departmental Undergraduate Committee
  • Coordinator, TURC-Biology