Karen Koster

Karen Koster

Associate Chair, Biology / Professor

BIOLOGY

Churchill-Haines Labs 168D

Phone: (605) 677-6173

Email: Karen.Koster@usd.edu

Website: http://www.usdbiology.com/koster

Teaching Interests:

I teach courses in the areas of cell biology, cellular physiology, and plant physiology.


Research Interests:

My research focuses on understanding mechanisms of cellular dehydration tolerance. I use seeds and moss to study how water loss affects cell structure and how some cells are adapted to survive the loss of almost all their water. I also do research on seed longevity, which is dependent upon processes that occur in the dried tissues. Understanding the physical and chemical changes that occur in dehydrated cells may help us improve the longevity of seeds and other genetic resources when they are stored.


Education:

  • Post-doctoral Research, University of California-Riverside, 1992
  • Ph D, Botany/Plant Physiology, Cornell University, 1991
  • BS, Organismal Biology, The University of Kansas, 1984

Grants:

  • Advanced cryobanking for recalcitrant-seeded Australian rainforest plants, Australian Research Council. Grant Role: Supporting. (2017 - 2021)
  • A molecular genetic approach to assess dehydrin-membrane interactions during desiccation and rehydration, USDA-NIFA. Grant Role: Principal. (2008 - 2011)
  • High profile junior faculty development activities: mentors to USD undergraduate students at the 2007 National Conference on Undergraduate Research (NCUR), and co-director of the USD U. Discover Scholars Program, Bush Foundation. Grant Role: Principal. (2007 - 2007)
  • Determination of the concentration of solutes in multi-lamellar membranes at low hydration using SANS, AINSE. Grant Role: Co-Principal. (2003 - 2006)
  • Membrane Damage and Protection during Desiccation of Pea Embryo Protoplasts, USDA-NRI. Grant Role: Principal. (2003 - 2006)
  • A physical approach to optimizing storage conditions for seed embryos, NSF-AAAS-WISC. Grant Role: Principal. (2002 - 2002)
  • Mechanism of damage and protection of desiccated and cryopreserved cells and organelles, USDA-ARS. Grant Role: Principal. (2000 - 2001)
  • Creating New Undergraduate Research Mentors at the University of South Dakota, USD Bush Mini-Grant Program. Grant Role: Co-Principal. (1996 - 1996)
  • The Effect of Vitrified Sugars on Membrane Lipids, NSF-EPSCoR. (1995 - 1998)
  • Enhancing Undergraduate Research Programs at the University of South Dakota, Bush Foundation. Grant Role: Principal. (1994 - 1994)
  • The Role of Vitrified Sugars in Plant Desiccation Tolerance, USDA-NRI. (1993 - 1997)

Publications:

Citations listed below are presented in a standardized, modified format for display purposes only. They do not necessarily reflect the preferred style and conventions of the faculty member or discipline.

  • Xiao, Lihong, Yobi, Abou, Koster, Karen, He, Yikun, and Oliver, Melvin J.. Desiccation tolerance in Physcomitrella patens: rate of dehydration and the involvement of endogenous ABA. Plant, Cell & Environment, 2017. (DOI: 10.1111/pce.13096)
  • Koster, Karen. "Connections, Conundrums, and the Meaning of Life". In The Harrington Lectures, No. 60, 29. Vermillion, SD: College of Arts & Sciences, University of South Dakota, 2015.
  • Goodman, Barb, Koster, Karen, and Swanson, David. The Development and Implementation of a New Medical Biology Major Including Physiology, 67-75. Vol. 39. Advances in Physiology Education, 2015. (DOI: 10.1152/advan.00010.2015 )
  • Nguyen, Huu T., Park, Hyunwoo, Koster, Karen, Cahoon, Rebecca E., Nguyen, Hanh T., Shanklin, John, Clemente, Thomas E., and Cahoon, Edgar B.. Redirection of Metabolic Flux for High Levels of Omega-7 Monounsaturated Fatty Acid Accumulation in Camelina Seeds, 38-50. Vol. 13, Iss. 1. Plant Biotechnology Journal, 2014. (DOI: 10.1111/pbi.12233)
  • Garvey, Christopher J., Lenne, Thomas, Koster, Karen, Kent, Ben, and Bryant, Gary. Phospholipid membrane protection by sugar molecules during dehydration -- insights into molecular mechanisms using scattering techniques, 8148-8163. Vol. 14, Iss. 4. International Journal of Molecular Sciences, 2013.
  • Walters, Christina T., Volk, Gayle M., Stanwood, Phil C., Towill, Leigh E., Koster, Karen, and Forsline, Phil L.. Long-Term Survival of Cryopreserved Germplasm: Contributing Factors and Assessments from Thirty Year Old Experiments, 113-120. Vol. 908. Acta Horticulturae, 2011.
  • Koster, Karen, Balsamo, Ronald A., Espinoza, Catherine, and Oliver, Melvin J.. Desiccation sensitivity and tolerance in the moss Physcomitrella patens: assessing limits and damage. In Plant Growth Regulation, 293-302. Vol. 62. Heidelberg: Plant Growth Regulation , 2010. (DOI: 10.1007/s10725-010-9490-9)
  • Lenne, Thomas, Garvey, Christopher J., Koster, Karen, and Bryant, Gary. Kinetics of the lamellar gel-fluid transition in phosphatidylcholine membranes in the presence of sugars., 236-242. Vol. 163. Chemistry and Physics of Lipids , 2010. (DOI: 10.1016/j.chemphyslip.2009.12.001)
  • Oliver, Melvin J., Cushman, John C., and Koster, Karen. Dehydration tolerance in plants. In Plant Stress Tolerance, Methods in Molecular Biology, edited by Ramanjulu Sunkar, 3-24. Vol. 639, Iss. 1st. New York, NY: Plant Stress Tolerance, Methods in Molecular Biology, 2010. (DOI: 10.1007/978-1-60761-702-0_1)
  • Lenne?, Thomas, Garvey, Christopher J., Koster, Karen, and Bryant, Gary. Effects of Sugars on Lipid Bilayers during Dehydration- SAXS/WAXS Measurements and Quantitative Model, 2486-2491. Vol. 113, Iss. 8. The Journal of Physical Chemistry B, 2009.
  • Lenne, Thomas, Garvey, Christopher J., Koster, Karen, and Bryant, Gary. The effects of sugars on lipid bilayers during dehydration: SAXS/WAXS measurements and quantitative model.. In Journal of Physical Chemistry B, 2486-2491. Vol. 113..
  • Lenne, Thomas, Bryant, Gary, Holcomb, Roland, and Koster, Karen. How much solute is needed to inhibit the fluid-gel membrane phase transition at low hydration?, 1019-1022. Vol. 1768, Iss. 5. Biochimica et Biophysica Acta - Biomembranes , 2007. (DOI: doi:10.1016/j.bbamem.2007.01.008 )
  • Walters, Christina, and Koster, Karen. Structural dynamics and desiccation damage in plant reproductive organs. In Plant Desiccation Tolerance,, edited by MA Jenks, A Wood. Oxford: Plant Desiccation Tolerance, Blackwell Publishing, 2007.
  • Mo, Bing, and Koster, Karen. Changes in lipoxygenase isoforms during germination and early seedling growth of Pisum sativum L., 97-106. Vol. 16. Wallingford: Seed Science Research , 2006.
  • Koster, Karen, and Bryant, Gary. Dehydration in model membranes and protoplasts: contrasting effects at low, intermediate and high hydrations.. In Cold Hardiness in Plants, edited by THH Chen, M Uemura, S Fujikawa, 219-234. Wallingford: Cold Hardiness in Plants, CABI, 2006.
  • Lenne, Thomas, Bryant, Gary, Garvey, Chris J., Leiderling, U, and Koster, Karen. Location of sugars in multilamellar membranes at low hydration., 862-864. Vol. 385-386. Physica B: Condensed Matter, 2006. (DOI: doi:10.1016/j.physb.2006.05.127 )
  • Lenne, Thomas, Bryant, Gary, Koster, Karen, and Holcomb, Roland. Quantitative analysis of the effect of sugars on membrane phase transitions and interlamellar hydration forces, 443. Vol. 53, Iss. 3. Cryobiology, 2006.
  • Bryant, Gary, Lenne, Thomas, Koster, Karen, and Garvey, Christopher J.. Sugar distribution between and around membranes during dehydration, 404. Vol. 53, Iss. 3. Cryobiology, 2006.
  • Halperin, Stephen J., and Koster, Karen. Sugar effects on membrane damage during desiccation of pea embryo protoplasts., 2303-2311. Vol. 57. Journal of Experimental Botany , 2006.
  • Lenne, T, Bryant, G, and Koster, Karen. Quantitative study on the effects of sugars on membrane phase transitions-preliminary investigations. In 16th National Congress 2005 Australian Institute of Physics..
  • Bryant, Gary, and Koster, Karen. Dehydration of solute-lipid systems: hydration forces analysis, 73-79. Vol. 35, Iss. 2. Colloids and Surfaces B: Biointerfaces, 2004.
  • Hejl, Angela M., and Koster, Karen. Juglone disrupts root plasma membrane H+-ATPase activity and impairs water uptake, root respiration, and growth in soybean (Glycine max) and corn (Zea mays), 453-471. Vol. 30, Iss. 2. Journal of Chemical Ecology, 2004.
  • Hejl, Angela M., and Koster, Karen. The allelochemical sorgoleone inhibits root H+-ATPase and water uptake, 2181-2191. Vol. 30, Iss. 11. Journal of chemical ecology, 2004.
  • Koster, Karen, Reisdorph, Nichole, and Ramsay, Jodie L.. Changing desiccation tolerance of pea embryo protoplasts during germination, 1607-1614. Vol. 54, Iss. 387. Journal of Experimental Botany, 2003.
  • Koster, Karen, Maddocks, Kami J., and Bryant, Gary. Exclusion of maltodextrins from phosphatidylcholine multilayers during dehydration: effects on membrane phase behaviour, 96-105. Vol. 32, Iss. 2. European Biophysics Journal, 2003.
  • Ramsay, Jodie L., and Koster, Karen. A comparison of anhydrous fixation methods for the observation of pea embryonic axes (Pisum sativum L. cv. Alaska), 83-90. Vol. 12, Iss. 2. Seed Science Research, 2002.
  • Wolfe, Joe, Bryant, Gary, and Koster, Karen. What is unfreezable water, how unfreezable is it and how much is there?, 157-166. Vol. 23, Iss. 3. CryoLetters, 2002.
  • Xiao, Limin, and Koster, Karen. Desiccation tolerance of protoplasts isolated from pea embryos, 2105-2114. Vol. 52, Iss. 364. Journal of experimental botany, 2001.
  • Bryant, Gary, Koster, Karen, and Wolfe, Joe. Membrane behaviour in seeds and other systems at low water content: the various effects of solutes, 17-25. Vol. 11, Iss. 01. Seed Science Research, 2001.
  • Koster, Karen, Lei, Yao P., Anderson, Matthew, Martin, Stephen, and Bryant, Gary. Effects of vitrified and nonvitrified sugars on phosphatidylcholine fluid-to-gel phase transitions, 1932-1946. Vol. 78, Iss. 4. Biophysical Journal, 2000.
  • Edwards, Joshua R., Koster, Karen, and Swanson, David. Time course for cryoprotectant synthesis in the freeze-tolerant chorus frog,< i> Pseudacris triseriata</i>, 367-375. Vol. 125, Iss. 3. Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology, 2000.
  • Reisdorph, Nichole A., and Koster, Karen. Progressive loss of desiccation tolerance in germinating pea (Pisum sativum) seeds, 265-271. Vol. 105, Iss. 2. Physiologia Plantarum, 1999.
  • Hejl, Angela M., and Koster, Karen. The phytotoxin juglone inhibits microsomal H+-ATPase activity, 66. Vol. 117. Plant Physiol, 1998.
  • Koster, Karen, Sommervold, Catherine L., and Lei, Yao P.. The effect of storage temperature on interactions between dehydrated sugars and phosphatidylcholine, 1581-1596. Vol. 47, Iss. 5. Journal of Thermal Analysis and Calorimetry, 1996.
  • Koster, Karen, Webb, Murray S., Bryant, Gary, and Lynch, Daniel V.. Interactions between soluble sugars and POPC (1-palmitoyl-2-oleoylphosphatidylcholine) during dehydration: vitrification of sugars alters the phase behavior of the phospholipid, 143-150. Vol. 1193, Iss. 1. Biochimica et Biophysica Acta (BBA)-Biomembranes, 1994.
  • HEJL, AM, BORMANN, T, Koster, Karen, and EINHELLIG, FA. EFFECT OF 6 SESQUETERPINE LACTONES ON OXYGEN-UPTAKE IN ISOLATED-MITOCHONDRIA AND OXYGEN EVOLUTION IN ISOLATED-CHLOROPLASTS. In PLANT PHYSIOLOGY, 114-114. Vol. 102, Iss. 1..
  • Koster, Karen, and WEBB, MS. VITRIFIED SUGARS LOWER THE GEL-TO-FLUID PHASE-TRANSITION TEMPERATURE OF PHOSPHATIDYLCHOLINE DURING DEHYDRATION-RELEVANCE TO ANHYDROBIOLOGY. In PLANT PHYSIOLOGY, 160-160. Vol. 102, Iss. 1..
  • Koster, Karen, and Lynch, Daniel V.. Solute accumulation and compartmentation during the cold acclimation of Puma rye, 108-113. Vol. 98, Iss. 1. Plant Physiology, 1992.
  • Koster, Karen. Glass formation and desiccation tolerance in seeds, 302-304. Vol. 96, Iss. 1. Plant Physiology, 1991.
  • Koster, Karen. The role of soluble sugars during dehydrative stress in plants. Cornell University, Jan., 1991.
  • Koster, Karen, and Leopold, A Carl. Sugars and desiccation tolerance in seeds, 829-832. Vol. 88, Iss. 3. Plant Physiology, 1988.

Awards and Honors:

  • Raytown Quality Schools Alumni Hall of Fame, Raytown (MO) Quality Schools, 2017
  • Nomination for Belbas-Larson Excellence in Teaching Award, 2015
  • Honorary Lifetime Membership, International Society for Seed Science, 2014
  • National Academies Education Fellow in the Life Sciences, The National Academies, 2013
  • President, Alpha Chapter of South Dakota, Phi Beta Kappa, 2013
  • Harrington Lecturer, College of Arts & Sciences, 2012
  • Treasurer, American Society of Plant Biologists, ASPB, 2012
  • Richard and Sharon Cutler Award in Liberal Arts, USD College of Arts & Sciences, 2007
  • Nomination for Belbas-Larson Award for Teaching Excellence, University of South Dakota, 2006
  • Chair, Midwestern Section, American Society of Plant Biologists, 2004
  • Minority Affairs Committee Member, American Society of Plant Biologists, 2004
  • Secretary, International Society for Seed Science, 2004
  • Vice-Chair, Midwestern Section, American Society of Plant Biologists, 2003
  • President, Alpha Chapter of South Dakota, Phi Beta Kappa, 2001
  • Secretary-Treasurer, Midwestern Section, American Society of Plant Biologists, 2001
  • Biology Councilor, Council on Undergraduate Research, 2000
  • Nomination for Belbas-Larson Award for Excellence in Teaching, University of South Dakota, 1998
  • Biology Councilor, Council on Undergraduate Research, 1997
  • Nomination for Belbas-Larson Award for Excellence in Teaching, University of South Dakota, 1997
  • Sigma Xi, 1988
  • Graduate Research Fellowship, National Science Foundation, 1985
  • A.D. White Fellow, Cornell University, 1984
  • Graduated with Highest Distinction and Departmental Honors, The University of Kansas, 1984
  • Phi Beta Kappa, 1984
  • Phi Kappa Phi, 1984
  • Chancellor's Club Scholar, University of Kansas, 1980
  • National Merit Scholar, 1980

Presentations:

  • Rathnayake, Kumudu N., Koster, Karen, Oliver, Melvin, Alexander, Danny, Wone, Bernard. A comparative metabolomic study between constitutively desiccation tolerant Syntrichia ruralis and inducibly desiccation tolerant Physcomitrella patens. Presented at the International Plant & Animal Genome XXVI, San Diego, CA. (January 2018)
  • Rathnayake, Kumudu N., Koster, Karen, Alexander, Danny, Wone, Bernard. Desiccation Tolerance in the Moss Physcomitrella patens: Insights into Metabolic Pathway Alterations during Acquisition of Desiccation Tolerance.. Presented at the MOSS 2017, Honolulu, HI. (June 23, 2017)
  • Rathnayake, Kumudu N., Wone, Bernard, Alexander, Danny, Koster, Karen. The Acquisition of Desiccation Tolerance in the Moss Physcomitrella patens: a metabolomic analysis.. Presented at the Plant Biology 2017, Honolulu, HI. (June 2017)
  • Rathnayake, Kumudu N., Sternhagen, Tyler, Koster, Karen. Desiccation, longevity, and lipid peroxidation in Physcomitrella patens.. Presented at the MOSS 2016, Leeds, United Kingdom. (September 4, 2016)
  • Rathnayake, Kumudu N., Koster, Karen. Acquisition of desiccation tolerance in the moss Physcomitrella patens by intrinsic mechanisms.. Presented at the Midwestern American Society of Plant Biologists Annual Meeting, Brookings, SD. (March 19, 2016)
  • Sternhagen, Tyler, Koster, Karen. Aging in moss: Lipid peroxidation by ROS does not limit longevity in dry storage.. Presented at the Midwestern American Society of Plant Biologists Annual Meeting, Brookings, SD. (March 19, 2016)
  • Barnes, Theresa F., Kumssa, Tadele, Koster, Karen. Effects of altered fatty acid content on germination of transgenic Camelina sativa.. Presented at the Midwestern American Society of Plant Biologists Annual Meeting, Brookings, SD. (March 19, 2016)
  • Sternhagen, Tyler, Koster, Karen. Aging in moss: lipid peroxidation by ROS does not limit longevity in dry storage. Presented at the Plant Biology 2015, Minneapolis, MN. (July 2015)
  • Walters, Christina, Hill, Lisa, Crane, Jennifer, Koster, Karen, Perez, Hector, Ballesteros, Daniel. Some thoughts about the desiccation tolerance continuum and the basis for "intermediate" seed physiologies. Presented at the 6th International Workshop on Desiccation Tolerance and Sensitivity in Seeds and Vegetative Plant Tissues, South Africa. (January 2012)
  • Bryant, Gary, Koster, Karen. Understanding Membrane Damage and Protection during Cellular Dehydration. Presented at the 6th International Workshop on Desiccation Tolerance and Sensitivity in Seeds and Vegetative Plant Tissues, South Africa. (January 2012)
  • Koster, Karen, Niemann, Zachary R., Oliver, Melvin J.. ABA induces desiccation tolerance in Physcomitrella patens.. Presented at the Plant Signaling in Response to Abiotic and Biotic Stress, Lincoln, NE. (October 2011)
  • Koster, Karen, Oliver, Melvin J., Balsamo, Ronald A., Niemann, Zachary R.. Studying cellular dehydration tolerance using the moss Physcomitrella patens. Presented at the Plant Biology 2011, Minneapolis, MN. (August 2011)
  • Walters, Christina, Hill, Lisa M., Koster, Karen, Bender, Jaimie. Comparisons of seed longevity under simulated aging and genebank storage conditions using Brassicaceae seeds. Presented at the 10th Conference of the ISSS, Bahia, Brazil. (April 2011)
  • Koster, Karen, Balsamo, Ronald A., Espinoza, Catherine, Oliver, Melvin J.. Desiccation sensitivity and tolerance in the moss Physcomitrella patens: assessing limits and damage.. Presented at the Plant Biology 2010, Montreal, Canada. (August 2010)