Dr. Gerald Schoenknecht


Associate Professor


Oklahoma State University, Dept. of Botany
301 Physical Science, Stillwater, OK 74078-3013, USA
Tel.: +1 (405) 744 5549, Fax.: +1 (405) 744 1797
E-mail: gschoen@okstate.edu


Picture of Gerald Schoenknecht

Teaching


Plant Physiology, BOT 3463, every spring and fall (in fall only as online course). Prerequisite: BOT 1404 (Plant Biology).

Plant Physiology Lab, BOT 3462, every spring. Prerequisite: Plant Physiology (BOT 3463) or concurrent enrollment.

Plant Mineral Nutrition, BOT 5423/4423, fall of odd numbered years. Prerequisite: Plant Physiology (BOT 3463).

Research


My group studies the physiology and evolution of plant membrane transport proteins. Ongoing research project are:
- Annotation and analysis of the genome of the thermoacidophilic red alga Galdieria sulphuraria.
The analysis of the Galdieria genome has been published in Science - see here.

- Recording and modelling of pH homeostasis in plant root cells (funded by OPSR - OCAST).

Publications since 2000


Gene transfer from bacteria and archaea facilitated evolution of an extremophilic eukaryote
Schönknecht, G., Chen, W.-H., Ternes, C. M., Barbier, G. G., Shrestha, R. P., Stanke, M., Bräutigam, A., Baker, B. J., Banfield, J. F., Garavito, R. M., Carr, K., Wilkerson, C., Gagneul, D., Dickenson, N. E., Oesterhelt, C., Lercher, M. J. and Weber, A. P.M. (2013) Science 339: 1207-1210. [See here]

Luminal and cytosolic pH feedback on proton pump activity and ATP affinity of the V-type ATPase from Arabidopsis
Rienmüller, F., Dreyer, I., Schönknecht, G., Schulz, A., Schumacher, K., Nagy, R., Martinoia, E., Marten, I. and Hedrich, R. (2012) Journal of Biological Chemistry 287: 8986-8993. [Full-Text PDF]

A novel calcium-binding site in the slow vacuolar cation channel TPC1 senses luminal calcium levels
Dadacz-Narloch, B., Beyhl, D., Larisch, C., López-Sanjurjo, E.J., Reski, R., Kuchitsu, K., Müller, T.D., Becker, D., Schönknecht, G. and Hedrich, R. (2011) The Plant Cell 23: 2696-2707. [Full-Text PDF]

pH regulation in an acidophilic green alga – a quantitative analysis
Bethmann, B. and Schönknecht, G. (2009) New Phytologist 183 (2): 327-339. [Full-Text PDF]

Plasmodesmata transport of GFP alone or fused to Potato virus X TGBp1 is diffusion driven
Schönknecht, G., Brown, J.E. and Verchot-Lubicz, J. (2008) Protoplasma 232 (3): 143-152. [Full-Text PDF]

Vacuolar ion channels in the liverwort Conocephalum conicum
Schönknecht, G. and Trebacz, K. (2008) Plant Signaling & Behavior 3 (6): 404-405. [Full-Text PDF]

Characteristics of anion channels in the tonoplast of the liverwort Conocephalum conicum
Trebacz, K., Schönknecht, G., Dziubinska, H. and Hanaka, A. (2007) Plant Cell Physiol. 48 (12): 1747-1757. [Full-Text PDF]

Vacuolar calcium channels
Pottosin, I.I. and Schönknecht, G. (2007) J. Exp. Bot. 58 (7): 1559-1569. [Full-Text PDF]

Modelling Ca2+ oscillations in plants
Schönknecht, G. and Bauer, C. (2007) In: Rhythms in Plants: Phenomenology, Mechanisms, and Adaptive Significance. S. Mancuso and S. Shabala, eds. ( Wien, New York: Springer), Chapter 14, pp. 295-311. [Full-Text PDF]

Mechanism of luminal Ca2+ and Mg2+ action on the vacuolar slowly activating channels
Pottosin, I.I., Martínez-Estévez, M., Dobrovinskaya, O.R., Muñiz, J. and Schönknecht, G. (2004) Planta 219 (6): 1057-1070. [Full-Text PDF]

KCO1 is a component of the slow-vacuolar (SV) ion channel
Schönknecht, G., Spoormaker, P., Steinmeyer, R., Brüggemann, L., Ache, P., Dutta, R., Reintanz, B., Godde, M., Hedrich, R. and Palme, K. (2002) FEBS Letters 511 (1-3): 28-32. [Full-Text PDF]

Cl- channel inhibitors of the arylaminobenzoate type act as photosystem II herbicides: A functional and structural study
Bock, A., Krieger-Liszkay, A., Beitia Ortiz de Zarate, I. and Schönknecht, G. (2001) Biochemistry 40: 3273-3281. [Full-Text PDF]

Slow vacuolar channels from barley mesophyll cells are regulated by 14-3-3 proteins.
van den Wijngaarda, P.W.J., Bunneya, T.D., Roobeeka, I., Schönknecht, G. and de Boer, A.H. (2001) FEBS Lett. 488 (1-2): 100-104. [Full-Text PDF]

A simple method to isolate protoplasts and vacuoles for patch-clamp experiments
Trebacz, K. and Schönknecht, G. (2000) Protoplasma 213 (1-2): 39-45. [Full-Text PDF]

Ion channels meet plant hormones
Hedrich, R., Becker, D., Dietrich, P. and Schönknecht, G. (2000) in: Plant Hormone Research. K. Palme and D. Schell eds. (Springer, Austria) Chapter 12.

For publications before 2000 see here.