Dr. Stephen Deyrup

Email: sdeyrup@siena.edu

Educational Background

B.S. Chemistry, Biology, Biochemistry,2001, Stetson University, DeLand, Florida

Graduate Education

Ph.D., 2006, University of Iowa, Iowa City, Iowa

Courses Taught

• Organic Chemistry I
  • Chem 210 and associated lab
• Organic Chemistry II
  • Chem 220 and associated lab

Research Interests

• Discovering New Antibiotics from Fungi
• Investigating Insect Chemical Defenses
• Using Biological Principles to Find New Chemistry
• NMR Techniques

Recent Publications

1.     Deyrup, S. T.; Eckman, L. E.; McCarthy, P. H.; Smedley, S. R.; Meinwald, J.; Schroeder, F. C.  2D NMR-Spectroscopic Screening Reveals Polyketides in Ladybugs.  Proc. Nat. Acad. Sci. USA.  2011, 108, 9753-9758. 

2.     Schmidt, L. E.; Deyrup, S. T.; Baltrusaitis, J.; Swenson, D. C.; Wicklow, D. T.; Gloer, J. B.  Hymenopsins A and B and a Macrophorin Analogue from a Fungicolous Hymenopsis sp.  J. Nat. Prod.  2010, 73, 404-408.

3.      Deyrup, S. T.; Gloer, J. B.; O’Donnell, K.; Wicklow, D. T.  Kolokosides A-D: Triterpenoid Glycosides from a Hawaiian Isolate of Xylaria sp.  J. Nat. Prod.2007, 70, 378-382.

4.     Deyrup, S. T.; Swenson, D. C.; Gloer, J. B.; Wicklow, D. T.  Caryophyllene Sesquiterpenoids from a Fungicolous Isolate of Pestalotiopsis disseminata. J. Nat. Prod. 2006, 69, 608-611.

5.     Sobolev, V. S.; Horn, B. W.; Potter, T. L.; Deyrup, S. T.; Gloer, J. B.  Production of Stilbenoids and Phenolic Acids by the Peanut Plant at Early Stages of Growth.  J. Agric. Food Chem. 2006, 54, 3505-3511.

6.     Sobolev, V. S.; Deyrup, S. T.; Gloer, J. B.  New Peanut (Arachis hypogaea) Phytoalexin with Prenylated Benzenoid and But-2-enolide Moieties.  J. Agric. Food Chem. 2006, 54, 2111-2115 

7.     Wicklow, D. T.; Roth, S.; Deyrup, S. T.; Gloer, J. B.  A Good Endophyte of Maize: Acremonium Zeae Antibiotics Inhibitory to Aspergillus Flavus andFusarium Verticillioides.  Mycol. Res. 2005, 109, 610–618.

8.     Deyrup, M. D.; Deyrup, S. T.  Notes on the Introduced Ant Quadristruma emmae (Hymenoptera: Formicidae) in Florida.  Entomological News 1999, 110, 13–21.

Recent Oral Presentations

1.   “Delphastus catalinae:  Tiny Beetles, Big Chemistry,” Stephen T. Deyrup, Laura E. Eckman, Patrick H. McCarthy, Scott R. Smedley, Jerrold Meinwald, Frank C. Schroeder.  50^th Annual Meeting of the American Society of Pharmacognosy, Honolulu, HI, June 27-July 1, 2009.

2.   “Kolokosides A-D:  Four Triterpenoid Glycosides from a Hawaiian Wood-Decay Fungus,” Stephen T. Deyrup, Donald T. Wicklow, James B. Gloer. 47^thAnnual Meeting of the American Society of Pharmacognosy, Washington, D.C., July 22-26, 2006.  

3.   “Venom Ontogeny in Dusky Pigmy Rattlesnakes (Sistrurus miliarius barbouri),” Stephen T. Deyrup, Daniel Niclas, Terence M. Farrell.  64^th Annual Meeting of the Florida Academy of Sciences, Melbourne, Florida, March 9-11, 2000.