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College of Arts & Sciences
Department of Biological Sciences

Faculty & Staff Directory

Beth Krizek

Department of Biology
University of South Carolina

Office: PSC 716
Phone Number: 803-777-1876

The unique ability of plants to initiate organs throughout their lifespan results from the activity of meristems. The shoot apical meristem, a dome of cells at the apex of the plant, provides cells for the initiation of new organ primordia around its periphery while maintaining a central core of pluripotent stem cells that remain undifferentiated. During reproductive development, the shoot apical meristem (also called an inflorescence meristem) initiates flower primordia around its periphery. These flower primordia (called floral meristems) give rise to floral organ primordia that arise in concentric rings called whorls. Floral meristems differ from shoot meristems in that all floral stem cells are used up in the process of organ initiation. My lab is interested in understanding the molecular mechanisms that regulate the transitioning of pluripotent stem cells toward differentiated cell fates. In addition, we are studying early events in flower development that control the positioning, number, size and identity of floral organ primordia. We study these processes in the model plant Arabidopsis thaliana.


Krizek, B.A. 2015. AINTEGUMENTA-LIKE genes have partly overlapping functions with AINTEGUMENTA but make distinct contributions to Arabidopsis thaliana flower development. J. Exp. Bot. 66, 4537-4549. [PDF]

Mudunkothge, J.S., and Krizek, B.A. 2014. The GUS reporter system in flower development. Methods Mol. Biol. 1110, 295-304.

Krizek, B.A.and Anderson, J.T. 2013. Control of flower size. J. Exp. Bot. 64, 1427-1437. [PDF]

Yamaguchi, N., Wu, M.F., Winter, C.M., Berns, M.C., Nole-Wilson, S., Yamaguchi, A., Coupland, G., Krizek, B.A., and Wagner, D. 2013. A molecular framework for auxin-mediated initiation of flower primordia. Dev. Cell 24, 271-282. [PDF]

Mudunkothge, J.S. and Krizek, B.A.. 2012. Three Arabidopsis AIL/PLT genes act in combination to regulate shoot apical meristem function. Plant J. 71, 108-121. [PDF]

Krizek, B.A. and Eaddy, M.. 2012. AINTEGUMENTA-LIKE6 regulates cellular differentiation in flowers. Plant Mol Biol. 78:199-209. [PDF]

Krizek, B.A.. 2011. Aintegumenta and Aintegumenta-Like6 regulate auxin-mediated flower development in Arabidopsis. BMC Res Notes. 4:176. [PDF]

Krizek, B.A.. 2011. Auxin regulation of Arabidopsis flower development involves members of the AINTEGUMENTA-LIKE/PLETHORA (AIL/PLT) family. J Exp Bot. 62:3311-3319. [PDF]

Krizek, B.A.. 2009. AINTEGUMENTA and AINTEGUMENTA-LIKE6 act redundantly to regulate Arabidopsis floral growth and patterning. Plant Physiol. 150:1916-1929. [PDF]

Krizek, B.A.. 2009. Making bigger plants: key regulators of final organ size. Curr Opin Plant Biol. 12:17-22. [PDF]

Nole-Wilson, S. and Krizek, B.A.. 2006. AINTEGUMENTA contributes to organ polarity and regulates growth of lateral organs in combination with YABBY genes. Plant Physiol. 141, 977-987. [PDF]

Krizek, B.A. and Sulli, C.. 2006. Mapping sequences required for nuclear localization and the transcriptional activation function of the Arabidopsis protein AINTEGUMENTA. Planta. 224:612-621. [PDF]

Krizek, B.A., Lewis, M.W. and Fletcher, J.C.. 2006. RABBIT EARS is a second-whorl repressor of AGAMOUS that maintains spatial boundaries in Arabidopsis flowers. Plant J. 45:369-383. [PDF]

Nole-Wilson, S., Tranby, T.L., and Krizek, B.A.. 2005. AINTEGUMENTA-like (AIL) genes are expressed in young tissues and may specify meristematic or division-competent states. Plant Mol Biol. 57:613-628. [PDF]