photo Karen Renzaglia

Karen Sue Renzaglia

Associate Professor
 
Ph.D. 1981, Southern Illinois University
 
Early land plant anatomy, morphology & phylogeny
 
Office & Lab: Life Science II room 459
Office & Lab Phone: 618-453-3229
email: KR
webpage

Research Interests

My lab focuses on describing the ultrastructure, morphology and development of cells, tissues and organs in bryophytes, pteridophytes, and seed plants. These studies have generated new phylogenetic information and new insight into evolutionary modifications of cell architecture and ontogeny. I am currently a collaborator on the Green Tree of Life project and a PI on a hornwort biodiversity and biogeography project. My research team, the Green Morphology Group, includes graduate and undergraduate students who are involved in a variety of projects including ultrastructural studies detailing sperm cell development, fertilization in ferns, sporogenesis in bryophytes, and experimental studies to ascertain the role of the cytoskeleton in cell differentiation.

Selected Publications

  1. Johnson G. P. and K. S. Renzaglia. 2008. Embryology of Ceratopteris richardii (Pteridaceae, tribe Ceratopterideae), with emphasis on placental development. Journal of Plant Research 121: 581-592.
  2. Lopez-Smith R. and K. Renzaglia. 2008. Sperm cell architecture, insemination, and fertilization in the model fern, Ceratopteris richardii. Sexual Plant Reproduction 21: 153-167.
  3. Ligrone R., A. Caraf, J.G. Duckett, K. S. Renzaglia, and K. Ruel. 2008. Immunocytochemical detection of lignin-related epitopes in cell walls in bryophytes and the charalean alga Nitella Plant Systematics and Evolution 270: 257-272.
  4. Renzaglia, K. S., S. Schutte, R. J. Duff, Ligrone, J. Shaw, B. Mishler, and J. Duckett. 2007. Bryophyte phylogeny: advancing the molecular and morphological frontiers. The Bryologist 110: 179–213.
  5. Duff, R. Joel., J. C. Villarreal, D. C. Cargill, and K. S. Renzaglia. 2007. Progress and challenges toward developing a phylogeny and classification of the hornworts. The Bryologist 110: 214-243.
  6. Vaughn, K.C. and K.S. Renzaglia. 2006. Structural and immunocytochemical characterization of the locomotory apparatus in the sperm of Ginkgo biloba L. Protoplasma, 227: 165-173.
  7. Villarreal, J.C. and K.S. Renzaglia. 2006. Sporophyte structure in the neotropical hornwort Phaeomegaceros fimbriatus: implications for phylogeny, taxonomy and character evolution. International Journal of Plant Sciences 167: 413-427.
  8. Villarreal, J.C. and K.S. Renzaglia. 2006. Structure and development of Nostoc strands in Leiosporoceros dussii (Anthocerotophyta): a novel symbiosis in land plants. American Journal of Botany 95: 693-705.
  9. Cargill, D.C., K.S. Renzaglia, J.C. Villarreal, and R.J. Duff.  2005. Generic concepts within hornworts: historical review, contemporary insights and future directions. Australian Journal of Botany 18:1-10.
  10. Shaw, A.J., and K. S. Renzaglia.  2004. Phylogeny and diversification of bryophytes.  American Journal of Botany 91:1557-1581.

SIUC / College of Science / Plant Biology
URL: http://www.science.siu.edu/plant-biology/BioPages/Renzaglia.bio.html
Last updated: 04-Jan-09 / dln