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Scholarly Interest Report
         
Janet Braam
Professor
Wiess Professor of Biochemistry and Cell Biology
 
e-mail:braam@rice.edu
 
  • Ph.D., Cornell Graduate School of Medical Sciences, Sloan-Kettering Division, Molecular Biology and Virology (1985)
  • B.S., Southern Illinois University-Carbondale, Zoology (1980)
 
Primary Department
   Department of BioSciences
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Department Affiliations
 
  • Environmental and Energy Systems Institute
  • Institute of Biosciences and Bioengineering
  •  
    Other Affiliations
     
  • Baylor College of Medicine
  •  
    Websites
     Braam lab
     
    Research Areas
     Abiotic stress responses; the circadian clock; plant defense; autophagy regulation; fungal perception; genetic control of seed development; nanoparticle-plant interactions
     

    Research Statement 2013

     

    Plants are unable to escape from harsh environments and perhaps as a consequence have evolved the ability to undergo adaptive changes in physiology and development. The mechanisms by which plants sense environmental stresses, transduce signals into cells and Braam Research regulate cellular and organismal alterations are largely unknown. We have taken a molecular approach to investigating these aspects of plant biology. The TCH genes of Arabidopsis are rapidly and strongly upregulated in expression in response to various environmental stimuli, including the seemingly innocuous stimulus of touch. These genes are powerful molecular tools for investigating how plants perceive environmental conditions and how they mount responses. We are investigating the cellular and genetic elements that control TCH expression and the biochemical and physiological functions of the TCH products. The TCH genes encode calmodulin, calmodulin-related proteins and a xyloglucan endotransglucosylase/hydrolase (XTH) predicted to act in modifying the plant cell wall. Current data support a hypothesis that the TCH proteins collaborate in the fundamental process of plant cell expansion.

     
    Selected Publications
     Refereed articles
     

    Koo, Y, Lukianova-Hleb, EY, Pan, J., Thompson, SM, Lapotko, DO, and Braam, J. In planta response of Arabidopsis to photothermal impact mediated by gold nanoparticles, Small, in press (2015).

     
     

    Liu, John D, Goodspeed, Danielle, Sheng, Zhengji, Li, Baohua, Yang, Yiran, Daniel J, Kliebenstein and Janet Braam "Keeping the rhythm: light/dark cycles during postharvest storage preserve the tissue integrity and nutritional content of leafy plants." BMC Plant Biology 15: 92.  (2015)

     
     

    Koo Y, Wang J, Zhang Q, Zhu H, Chehab EW, Colvin VL, Alvarez PJ, and Braam J.  Fluorescence Reports Intact Quantum Dot Uptake into Roots and Translocation to Leaves of Arabidopsis thaliana and Subsequent Ingestion by Insect Herbivores. Environ Sci Technol. 49:626-32 (2015)

     
     

    Lukianova-Hleb, EY, Campbell, KM, Constantinou, PE, Braam, J, Olson, JS, Ware, RE, Sullivan, DJ, Lapotko, DO. Hemozoin-generated vapor nanobubbles for transdermal reagent- and needle-free detection of malaria. Proceedings of the National Academy of Sciences, 111:900-905 (2014).

     
     

    Wang J, Yang Y, Zhu H, Braam J, Schnoor JL, and Alvarez PJ. Uptake, translocation, and transformation of quantum dots with cationic versus anionic coatings by Populus deltoides × nigra cuttings. Environ Sci Technol. 48:6754-6762 (2014)

     
     

    Zhu XF, Wan JX, Sun Y, Shi YZ, Braam J, Li GX, and Zheng SJ. Xyloglucan Endotransglucosylase-Hydrolase17 interacts with xyloglucan endotransglucosylase-hydrolase31 to confer xyloglucan endotransglucosylase action and affect aluminum sensitivity in Arabidopsis. Plant Physiol 165:1566-1574. (2014)

     
     

    Zhu, Xiao Fang, Wan, JX, Sun, Y, Shi, YZ, Braam, J, Li, GX, Zheng, SJ. XTH17 interacts with XTH31 to confer XET action and affect aluminum sensitivity in Arabidopsis, Plant Physiology, 165: 1566-1574 (2014).

     
     

    Goodspeed, D, Liu, JD, Chehab, EW, Sheng, Z, Francisco, M, Kliebenstein, DJ, Braam, J. Post harvest circadian entrainment enhances crop pest resistance and phytochemical cycling, Current Biology, 23: 1235-1241 (2013).

     
     

    Goodspeed, D, Chehab, EW, Covington, M, Braam, J. Circadian control of jasmonates and salicylates: the clock role in plant defense. Plant Signaling and Behavior 8: e23123 (2013).

     
     

    Kim, S, Schlicke, H, Van Ree, K, Karvonen, K, Subramaniam, A, Richter, A, Grimm, B, and Braam, J. Arabidopsis chlorophyll biosynthesis: an essential balance between the methylerythritol phosphate and tetrapyrrole pathways. Plant Cell, 25:4984-4993 (2013).

     
     

    Wang, J, Koo, Y, Alexander, A, Yang, Y, Westerhof, S, Zhang, Q, Schnoor, JL, Colvin, VL, Braam, J, Alvarez, PJJ.  Phyto-stimulation of poplars and Arabidopsis exposed to silver nanoparticles and Ag+ at sub-lethal concentrations, Environmental Science and Technology, 47: 5442-5449 (2013).

     
     

    Zhao, Y, Liu, W, Xu, Y-P, Cao, J-Y, Braam, J, Cai, X-Z. Genome-wide identification and functional analyses of calmodulin genes in Solanaceous species, BMC Plant Biology, doi: 10.1186/1471-2229-13-70 (2013).

     
     

    Zhu, XF, Lei, GJ, Yan, JY, Wang, ZW, Shi, YZ, Braam, J, Li, GX, Zheng, SJ. Coordination between apoplastic and symplastic detoxification confers plant Al resistance, Plant Physiology, 162: 1947-1955. (2013).

     
     

    Chehab, EW, Yao, C, Henderson, Z, Kim, S, and Braam, J.  Arabidopsis touch-induced morphogenesis is jasmonate mediated and protects against pests, Current Biology 22: 701-706 (2012).

     
     

    Goodspeed, D, Chehab, EW, Min-Venditti, A, Braam, J* and Covington, MC. Arabidopsis synchronizes jasmonate-dependent defense with insect circadian behavior. (*corresponding author) Proceedings of the National Academy of Sciences USA 109: 4674-4677 (2012).

     
     

    Hubbard, K.E., Gardner, M.J., Aubry, S., Hotta, C.T., Haydon, M., del Carmen, M., Ruiz, M., Schoepfer, D., Robertson, F.C., Briggs, H., Tsai, Y.-C., Dodd, A.N., Carre, I., Braam, J., and Webb, A.A.R. "Calcium is a switch in the Arabidopsis circadian clock." Submitted

     
     

    Tsai, Y.-C., Koo, Y., Delk, N.A., Gehl, B., and Braam, J. Calmodulin-related CML24 interacts ATG4b and affects autophagy regulation in Arabidopsis, Plant Journal, 73: 325-335 (2012).

     
     

    Zhu, XF, Shi, YZ, Lei, GJ, Fry, SC, Zhang, BC, Zhou, YH, Braam, J, Jiang, T, Pan, YJ, Yang, JL, Wu, P, Zheng, SJ. XTH31 controls Al sensitivity by modulating the XET action of an XEH-active enzyme, cell wall xyloglucan content and Al binding capacity in Arabidopsis, Plant Cell 24: 4731-4747 (2012).

     
     

    Chehab, E.W., Kim, S., Savchenko, T., Kliebenstein, D., Dehesh, K., and Braam, J. "Intronic T-DNA insertion renders Arabidopsis opr3 a conditional JA-producing mutant." Plant Physiol., 156 (2011) : 770-778.

     
     

    Van Ree, K., Gehl, B., Chehab, E.W., Tsai, Y.-C., and Braam, J. "Arabidopsis nitric oxide accumulation is independent of NOA1 in the presence of sucrose." Plant Journal, 68 (2011) : 225-233.

     
     

    Wang, Y., Wang, B., Chehab, E.W., Gilroy, S., Braam, J. "CML24 is involved in root mechanoresponses and cortical microtubule orientation in Arabidopsis." J Plant Growth Regulation, 30 (2011) : 467-479.

     
     

    Ji J. and Braam J. "Restriction Site Extension PCR: A Novel Method for High-Throughput Characterization of Tagged DNA Fragments and Genome Walking." PLoS One, 5 (2010) : e10577.

     
     

    Lee, C. W., Mahendra, S., Zodrow, K., Li, D., Tsai, Y.-C., Braam, J., Alvarez, P.J.J. "Developmental phytotoxicity of metal oxide nanoparticles to Arabidopsis thaliana." Environ. Toxicol. Chem., 29 (2010) : 669-675.

     
     

    Chehab, E.W., Eich, E., and Braam, J. "Thigmomorphogenesis: A complex plant response to mechano-stimulation." J Exp Bot, 60 (2009) : 43-56.

     
     

    Ma, W, Smigel, A., Tsai, Y.-C., Braam, J., and Berkowitz, G.A. "Innate immunity signaling: cytosolic Ca2+ elevation is linked to downstream nitric oxide generation through the action of calmodulin or a calmodulin-like protein." Plant Physiol., 148 (2008) : 818-828.

     
     

    Tsai, Y.-C., Delk, N.A., Chowdhury, N.I., and Braam, J. "Arabidopsis potential calcium sensors regulate nitric oxide levels and the transition to flowering." Plant Signaling & Behavior, 2 (2007) : 446-454.

     
     

    Becnel, J., Natarajan, M., Kipp, A., and Braam, J. "Developmental expression patterns of Arabidopsis XTH genes reported by transgenes and genevestigator." Plant Molecular Biology, 61 (2006) : 451-467.

     
     

    Braam, J. "Tansley review. In touch: Plant responses to mechanical stimuli." New Phytologist, 165 (2005) : 373-389.

     
     

    Delk, N., Johnson, K.A., Chowdhury, N.I., and Braam, J. "CML24, regulated in expression by diverse stimuli, encodes a potential Ca2+ sensor that functions in responses to ABA, day length and ion stress." Plant Physiol., 139 (2005) : 240-253.

     
     

    Lee, D., Polisensky, D.H., and Braam, J. "Genome-wide identification of touch and darkness-regulated Arabidopsis genes: A Focus on calmodulin-like and XTH genes." New Phytologist, 165 (2005) : 429-444.

     
     

    McCormack, E., Tsai,Y.-C., and Braam, J. "Handling calcium signaling: Arabidopsis CaMs and CMLs." Trends Plant Sci., 10 (2005) : 383-389.

     
     

    McCormack, E., and Braam, J. "Calmodulins and Related Potential Calcium Sensors of Arabidopsis." New Phytologist, 159 (2003) : 585-598.

     
     

    Iliev, E., Xu, W., Polisensky, D.H., Oh, M.-O., Torisky, R.S., Clouse, S.D., and Braam, J. "Transcriptional and Post-transcriptional Regulation of Arabidopsis TCH4 Expression by Diverse Stimuli: Roles of cis Regions and Brassinosteroids." Plant Physiol., 130 (2002) : 770-783.

     
     

    Rose, J.K.C., Braam, J., Fry, S.C., and Nishitani, K. "The XTH Family of Enzymes Involved in Xyloglucan Endotransglucosylation and Endohydrolasis: Current Prospectives and a New Unifying Nomenclature." Plant & Cell Physiol., 43 (2002) : 1421-1435.

     
     

    Steele, N.M., Sulova, Z., Campbell, P., Braam, J., Farkas, V., and Fry, S.C. "Ten Isoenzymes of Xyloglucan Endotransglycosylase from Plant Cell Walls Select and Cleave the Donor Substrate Stochastically." Biochem. J., 355 (2001) : 671-679.

     
     

    Campbell, P., and Braam, J. "In vitro Activities of Four Xyloglucan Endotransglycosylases from Arabidopsis." Plant J., 18 (1999) : 371-382.

     
     

    Campbell, P., and Braam, J. "Xyloglucan Endotransglycosylases: Diversity of Genes, Enzymes and Potential Wall-modifying Functions." Trends in Plant Sci., 4 (1999) : 361-366.

     
     

    Campbell, P., and Braam, J. "Co- and Post-translational Modifications Are Critical for TCH4 XET Activity." Plant J., 15 (1998) : 553-561.

     
     

    Johnson, K.A., Sistrunk, M.L., Polisensky, D.H., and Braam, J. "Arabidopsis thaliana Responses to Mechanical Stimuli Do not Require ETR1 or EIN2." Plant Physiol., 116 (1998) : 643-649.

     
     

    Antosiewicz, D.M., Purugganan, M.M., Polisensky, D.H., and Braam, J. "Cellular localization of Arabidopsis Xyloglucan Endotransglycosylase-related Proteins During Development and After Wind Stimulation." Plant Physiol., 115 (1997) : 1319-1328.

     
     

    Braam, J., Sistrunk, M.L., Polisensky, D.H., Xu, W., Purugganan, M.M., Antosiewicz, D.M., Campbell, P., and Johnson, K.A. "Plant Responses to Environmental Stress: Regulation and Function of the Arabidopsis TCH Genes." Planta, 203 (1997) : S35-S41.

     
     

    Khan, A.R., Johnson, K.A., Braam, J., and James, M.N.G. "Comparative Modeling of the Three-dimensional Structure of the Calmodulin-related TCH2 Protein from Arabidopsis." Proteins: Structure, Function and Genetics, 27 (1997) : 144-153.

     
     

    Purugganan, M.M., Braam, J., and Fry, S.C. "The Arabidopsis TCH4 Xyloglucan Endotransglycosylase: Substrate Specificity, pH Optimum, and Cold Tolerance." Plant Physiol., 115 (1997) : 181-190.

     
     

    Antosiewicz, D.M., Polisensky, D.H., and Braam, J. "Cellular Localization of the Ca2+ Binding TCH3 Protein of Arabidopsis." Plant Journal, 8 (1995) : 623-636.

     
     

    Braam, J. "Regulated expression of the calmodulin-related TCH genes in cultured Arabidopsis cells: induction by calcium and heat shock." Proceedings of the National Academy of Sciences, 89 (1992) : 3213-3216.

     
     

    Braam, J. "Regulation of expression of calmodulin and calmodulin-related genes by environmental stimuli in plants." Cell Calcium, 13 (1992) : 457-463.

     
     Book chapters
     

    Chehab, EW and Braam, J. Jasmonates in plant defense responses, Invited book chapter, Signaling and Communication in Plants, edited by František Baluška and Jorge Vivanco, Spring Press, pp. 67-88 (2012).

     
     

    Chehab, E.W., Wang, Y., Braam, J. "Mechanical force responses in plant cells and plants." Mechanical Integration in Plant Cells and Plants, Signaling and Communication in Plants (2011) : 173-194.

     
     

    McCormack, E., Velasquez, L., Delk, N., and Braam, J. "Touch-responsive behaviors and gene expression in plants." Communication in Plants: Neuronal Aspects of Plant Life (2006) : 249-261.

     
     

    Braam, J. "Touch-induced regulation of expression of the calmodulin-related TCH genes and thigmomorphogenesis in Arabidopsis." Plant Growth Substances (1992) : 82-95.

     
     

    Braam, J., Davis, R.W. "The mechanosensory pathway in Arabidopsis: Touch-induced regulation of expression of calmodulin and calmodulin-related genes and alterations of development." Current Topics in Plant Biochemistry and Physiology, 9 (1990) : 85-100.

     
     Conference papers
     

    Braam, J. "The Arabidopsis TCH Genes: Regulated in Expression by Mechanotransduction?." Plant Tolerance to Abiotic Stresses in Agriculture: Role of Genetic Engineering. NATO Advance Research Workshop Proceedings (2000) : pp. 29-37.

     
     

    Braam, J "Developmental and molecular responses to touch in plants.." Society for Developmental Biology Symposia (1993) : 185-198.

     
    Presentations
     Invited Talks
     

    "Attention Herbivores: Plants Fight Back"

    Gordon Research Conference Chronobiology, Girona, Spain, June 2015

     
     

    "Circadian Rhythms: How Cycling of Plant-Biology may Impact Nutrition"

    Health and Food:  Is there a Future?

    Alberta Institute of Agrologists, Banff, Alberta, Canada, April 2015

     
     

    "Anticipation of Attack:  The Clock and Plant Defense." SECTS for Clocks, Houston, TX. (March 2014)

     
     

    "Timing Plant Defense: Attention Herbivores!." Society for Research on Biological Rhythms, Big Sky, MT. (June 2014)

     
     

    "Timing is Everything: How the Plant Circadian Clock Enhances Defense." Keystone Meeting, Breckinridge, CO. (February 2014)

     
     

    "Plant Defense: Roles for Time and Touch." Colorado State University, Fort Collins, CO. (April)

     
     

    "Arabidopsis Touch-Induced Morphogenesis is Jasmonate Mediated and Protects Against Pests." American Society of Plant Biology 2012, Austin TX. (July 2012) With Wassim Chehab

     
     

    "Arabidopsis synchronizes jasmonate-mediated defense with insect circadian behavior." 21st annual Southeastern and Central Texas Society (SECTS) for Clocks meeting, Center for Biological Clocks Research (CBCR) at Texas A&M University. (March 31, 2012)

     
     

    "Maintenance of the circadian clock promotes biotic stress resistance.." Workshop: Building linkages between plant scientists attending Plant Biology 2012 and African bioscientists, (July 2012)

     
     

    "Plant Defense:  Roles for Touch and Time." Seminar Speaker, Washington State University, Pullman, WA. (June 2012)

     
     

    "Plant Defense:  Roles for Touch and Time." Invited Seminar Speaker, University of Waterloo, Waterloo, ON. (May 2012)

     
     

    "Plant Defense:  Roles for Touch and Time." Invited Seminar Speaker, University of Idaho, Biological Sciences, Moscow, ID. (May 2012)

     
     

    "Plants Defend Themselves Against Herbivores and Fungal Attack by Using the Circadian Clock to Control Jasmonate Levels." American Society of Plant Biology 2012, Austin TX. (July 2012) With Danielle Goodspeed

     
     

    "A Role for CML24 in ATG4 Autophagy." Genetics Dept Seminar, University of Wisconsin, (June 2010)

     
     

    "Calcium sensors function in plant responses to environmental stress." NASA Center for Bionanotechnology and Environmental Research, Texas Southern University. (February 2010)

     
     

    "Diverse roles of a potential calcium sensor implicated in plant responses to stress." Brookhaven National Labs, New York. (March 2010)

     
     

    "Potentially Novel Regulation of ATG4 and Autophagy via a Calmodulin-like Protein in Plants." Autophagy Symposium, University Texas Health Science Center, (June 2010)

     
     

    "ATG4 and autophage regulation in plants." Autophagy Workshop, Baylor College of Medicine. (January 2009)

     
     

    "Autophagy regulation: Novel role of plant calcium sensor." Biological Sciences, University of Montana, Missoula. (July 2009)

     
     

    "Autophagy regulation: Novel role of plant calcium sensor." Rocky Mountain Labs, Hamilton, Montana. (July 2009)

     
     

    "Autophagy regulation: Novel role of plant calcium sensor." Cell and Molecular Biology seminar series, University of Texas, San Antonio. (March 2009)

     
     

    "Keeping Calm Under Stress: Potential Links in Calcium Signaling, Nitric Oxide Accumulation, and Autophagy in Plant Cells." Institute of Bioscience and Bioengineering Symposium, Rice University, Houston, Texas. (July 2008)

     
     

    "Roles of Calmodulin-like Proteins in Plant Responses to Environmental Stimuli." Colorado State University, Fort Collins, Colorado. (April 2008)

     
     

    "Roles of Calmodulin-like Proteins in Plant Responses to Environmental Stimuli." Louisiana State University, Baton Rouge, Louisiana. (April 2008)

     
     

    "Roles of Calmodulin-like Proteins in Plant Responses to Environmental Stimuli." Charles Rick Symposium, University of California, Davis, California. (April 2008)

     
     

    "Arabidopsis Calcium Sensors Regulate Transition to Flowering and Nitric Oxide Accumulation." American Society of Plant Biologists, Chicago, Illinois. (July 2007) With Tsai, Y.-C.

     
     

    Graduate Research Advisor.  "Arabidopsis Calcium Sensors Regulate Transition to Flowering and Nitric Oxide Accumulation." Biochemistry & Cell Biology Retreat, Chain-o-Lakes Resort, Texas. (August 2006) With Yu-Chang Tsai

     
     

    "Expression Regulation and Functions of Arabidopsis Xyloglucan Endotransglucosylase/Hydrolases." Minisymposium on Cell Walls, American Society of Plant Biology, Boston, Massachusetts. (August 2006) With Melissa Mezzari

     
     

    "Plant Responses to the Environment: Roles of Calcium Sensors and Cell Wall Modifying Enzymes." Purdue University Seminar Series, West Lafayette, Indiana. (November 2006)

     
     

    "Potential Calcium Sensor Proteins Function in Perception and/or Response to Environmental Stimuli." Second Plant Neurobiology Meeting, Beijing, China. (May 20-27, 2006)

     
     

    "Roles of Arabidopsis XTHs in Environmental Responses." Gordon Research Conference on Plant Cell Walls, Biddeford, Maine. (July-August 2006)

     
     

    "Plasticity of Wind-induced Gene Regulation." SUNY, Stony Book, New York. (November 21, 2005)

     
     

    "Regulation and Function of CML23 and CML24: Calmodulin-like Genes in Arabidopsis." MD Anderson Cancer Research Center, Houston, Texas. (June 2005) With Nikki Delk

     
     

    "Regulation and Function of CML23 and CML24: Calmodulin-like Genes in Arabidopsis." Baylor College of Medicine, Houston, Texas. (June 2005) With Nikki Delk

     
     

    "Regulation and Function of CML23 and CML24: Calmodulin-like Genes in Arabidopsis." Rice University Biochemistry & Cell Biology Retreat, Chain-O-Lakes Retreat, Texas. (August 2005) With Nikki Delk

     
     

    "Regulation and Function of XTH Genes of Arabidopsis." Plant Cell Wall Biosynthesis Meeting, Asilomar, California. (August 4-7, 2005)

     
     

    "Responses to Mechanical Stress." Rice University Biochemistry & Cell Biology Retreat, Chain-O-Lakes Retreat, Texas. (August 2005) With Luis Velasquez

     
     

    "Touch Responsive Gene Expression." First Symposium on Plant Neurobiology, Florence, Italy. (May 17-20)

     
     

    "Calcium Binding Proteins of Arabidopsis." Calcium Workshop, New Braunfels, Texas. (March 12-14, 2004)

     
     

    "Responses to Abiotic Stress." Keystone Symposium, Santa Fe, New Mexico. (February 19-24, 2004)

     
     

    "Mechanostimulus Responses of Plants: Touch Inducible Gene Expression in Arabidopsis." Institute of Medicine and Engineering, University of Pennsylvania, Philadelphia. (December 2002)

     
     

    "Perception and Response to the Environment: Regulation and Functions of Calmodulin-like Proteins and Cell Wall Modifying XTH Proteins of Arabidopsis." Plant Biology Seminar Series of the Plant Research Laboratory (PRL) and the Department of Plant Biology, East Lansing, Michigan. (January 2003)

     
     

    "Plant Responses to Environmental Stimuli: Molecular Genetic Approaches." Mini-symposium on Interdisciplinary Biology at Rice University, Houston, Texas. (January 2003)

     
     

    "Regulation and Functions of TCH4 and Related XTHs." 14th International Conference of Arabidopsis Research, University of Wisconsin-Madison. (June 20-24, 2003)

     
     

    "Sensing the Environment: Regulation and Roles of Cell Wall Modifying and Calmodulin-like Genes of Arabidopsis." University of Texas-Austin Seminar Series, Austin, Texas. (April 2003)

     
     

    "Sensing the Environment: Regulation and Roles of Cell Wall Modifying and Calmodulin-like Genes of Arabidopsis." Biotechnology Symposium, Stephen F. Austin State University, Nacogdoches, Texas. (April 2003)

     
     

    "The Arabidopsis TCH Genes: Tools for Investigating Plant Responses to Environmental Stimuli." 4th International Plant Biomechanics Conference, Michigan State University. (July 20-25, 2003)

     
     

    "Regulation and Function of the Xyloglucan Endotransglucosylase-encoding TCH4 Gene of Arabidopsis." invited speaker, Plant Cell Wall Biosynthesis Meeting, UCLA Lake Arrowhead Conference Center. (May 12-15, 2002)

     
     

    "Women in Science." Rice University Scholar Program, Houston, Texas. (2002)

     
     

    "Arabidopsis XETs: Regulation and Function." Plant Protein Club Workshop "Added Value Products from Plants 2: Cell Wall Components", University of York, United Kingdom. (March 21-23, 2001)

     
     

    "Molecular and Developmental Responses of Plants to Mechanical Forces." Invited speaker, Gravitational Effects on Living Systems: Mechanosensing, Connecticut College, New London, Connecticut. (July 1-6, 2001)

     
     

    "Regulation and Functions of the Arabidopsis TCH Genes." Department of Plant Sciences Seminar Series, University of Arizona, Tucson, Arizona. (April 2, 2001)

     
     

    "Regulation of Plant Gene Expression by Mechanical Force." NASA Cell Science Conference, Houston, Texas. (March 6-8, 2001)

     
     

    "Regulation and Function of the Stress-Induced TCH Genes of Arabidopsis." 1999 Gordon Research Conference on Temperature Stress in Plants, Ventura, California. (January 31-February 5, 1999)

     
     

    "Regulation and Functions of the Touch-induced Genes Encoding Calmodulin-related and XET Proteins of Arabidopsis." Seminar, Department of Biology, Penn State University. (April, 1999)

     
     

    "Regulation and Functions of the Touch-induced Genes Encoding Calmodulin-related and XET Proteins of Arabidopsis." Plant Biology Section, Nobel Foundation, Ardmore, Oklahoma. (May, 1999)

     
     

    "Regulation and functions of the Arabidopsis Calmodulin-related and XE-related TCH Genes." Invited Speaker, NATO Advanced Research Workshop, Mrogowa, Poland. (June, 1999)

     
     

    "Regulation and functions of the Arabidopsis Calmodulin-related and XE-related TCH Genes." Invited Speaker, XVI International Botanical Congress, St. Louis, Missouri. (August, 1999)

     
     

    "Regulation and Functions of the Mechanosensitive TCH Genes of Arabidopsis." Invited Speaker, 19th Annual International Gravitatonal Physiology Meeting, Rome, Italy. (May-June, 1998)

     
     Lectures
     

    "Life is Incredible." Rice University, Houston, TX. (February 2013)

     
     

    "The Surprising Behavior of Plants: Powers of Perception and Resilience." Science Cafe, Houston, TX. (October 2013)

     
     

    "Plant Responses to Environmental Stimuli." IGERT, Rice University, Houston, Texas. (July 2006)

     
     

    "Believing the Wrong Result: Personal Lessons in Scientific Discovery." Continuing Education, Rice University, Houston, Texas. (April 4, 2002)

     
     Panelist
     

    "How and When to Negotiate a Good Start Up Package”; “Practice Chair Interview” and “Negotiating the Ideal Faculty Position Workshop." NSF ADVANCE Program, (September 2010)

     
     Posters
     

    "CML24, a potential calcium and redox sensor, functions in nitric oxide accumulation." Plant Responses to Environmental Stress, Keystone Meeting, Big Sky, Montana. (January, 2009) With YC Tsai

     
     

    "Innate immunity signaling: cytosolic Ca2+ elevation as an early signal is linked to downstream nitric oxide generation through the action of calmodulin or a calmodulin-like protein." Plant Biology, Merida, Mexico. (June, 2008) With W. Ma, A. Smigel, Y.-C. Tsai, G.A. Berkowitz

     
     

    "Arabidopsis Calcium Sensors Regulate Transition to Flowering and Nitric Oxide Accumulation." American Society of Plant Biologists, Chicago, Illinois. (July 2007) With Tsai, Y.-Ch., Delk, N., and Chowdhury, N.

     
     

    "CNGC2-Mediated Ca Conductance into the Cell Acts Upstream from Nitric Oxide Generation in the Hypersensitive Response to Pathogens and Is Linked through CaM and/or CaM-like Regulation of Nitric Oxide Production." American Society of Plant Biologists, Chicago, Illinois. (July 2007) With Ma, W., Smigel, A., Tsai, Y.-C., and Berkowitz, G.

     
     

    "Changes in GABA Shunt Metabolites in Calmodulin Mutants of Arabidopsis thaliana under Abiotic Stresses." American Society of Plant Biologists, July 2007. (Chicago, Illinois) With Al-Quraan, N., Locy, R., and Singh, N.

     
     

    "Involvement of Calmodulin in GABA Shunt Regulation and Thermotolerance in Arabidopsis thaliana under Heat Stress." American Society of Plant Biologists, July 2007. (Chicago, Illinois) With Al-Quraan, N., Locy, R., and Singh, N.

     
     

    Graduate Research Advisor.  "Arabidopsis Calcium Sensors Regulate Transition to Flowering and Nitric Oxide Accumulation." American Society of Plant Biology, Boston, Massachusetts. (August 2006) With Yu Chang Tsai

     
     

    Postdoctoral advisor.  "Expression Regulation and Functions of Arabidopsis Xyloglucan Endotransglucosylate/Hydrolases." American Society of Plant Biology, Boston, Massachusetts. (August 2006) With Melissa Mezzari

     
     

    "The Roles of OPR1 and OPR2 in TNT and RDX Reduction Reactions." American Society of Plant Biology Meeting, Seattle, Washington. (July 2005) With Melissa Mezzari

     
     

    "Thigmomorphogenesis and Disease Resistance in Arabidopsis." American Society of Plant Biologists Meeting, Seattle, Washington. (July 2005) With Luis Velasquez

     
     

    "CaMs and CMLs as Potential Mediators of Calcium Signaling in Arabidopsis." ASPB Plant Biology 2004, Lake Buena Vista, Florida. (July 2004) With E. McCormack

     
     

    "The XTHs of Arabidopsis: Function and Expression Regulation." ASPB Plant Biology 2004, Lake Buena Vista, Florida. (July 2004) With B. Porter and J. Becnel

     
     

    "Biochemistry and Cell Biology--From Graduate School to Career." Louis Stokes Alliance for Minority Participation, Southwest Texas State University, San Marcos, Texas. (July 12-14, 2002) With N. Delk

     
     

    "Expression of XTHs in Arabidopsis." Rice University Undergraduate Research Symposium, Rice University, Houston, Texas. (Spring 2002) With A. Kipp and J. Becnel

     
     

    "Mutant Analysis to Determine the Physiological Function of the Arabidopsis TCH2 Protein." The Alliances for Graduate Education and the Professoriate (AGEP), Houston, Texas. (June 21, 2002) With N. Delk

     
     

    "Physiological and Biochemical Function of the Arabidopsis TCH2 Protein." American Society of Plant Biologists Plant Biology 2002, Denver, Colorado. (August 3-7, 2002) With N. Delk and K.A. Johnson

     
     

    "The XTH Family of Arabidopsis thaliana." American Society of Plant Biologists Meeting, Denver, Colorado. (August 2002) With J. Becnel

     
     

    "Xyloglucan Endotransglycosylases of Arabidopsis: Diversity of Genes, Expression Regulation and Function." 12th International Conference on Arabidopsis Research, (June 2002) With J. Becnel and P. Campbell

     
     Seminar Speaker
     

    Biology, University of Virginia, Charlottesville, VA

     
     

    Horticultural Science, Texas A&M University, College Station, TX, November 2015

     
     

    Biology Department, Washington University, St. Louis, MO, November 2015

     
     

    "Plant Defense: Roles for Touch and Time." Swarthmore College, Swarthmore, PA. (November 2014)

     
     

    "Plant Defense: Roles for Touch and Time." Penn State University, State College, PA. (October 2013)

     
     Session Chair
     

    "Plant Insect Interaction Minisymposium." American Society of Plant Biology 2012, Austin TX. (July 2012)

     
     

    "Signal Transduction." American Society of Plant Biologists, Chicago, Illinois. (July 2007)

     
     

    "Minisymposium on Cell Walls." American Society of Plant Biology, Boston, Massachusetts. (August 2006)

     
     

    "Molecular Biology." Second symposium on Plant Neurobiology, Beijing, China. (May 20-27, 2006)

     
     

    "Plant-to-Plant Communication and Ecophysiology." Plant Neurobiology Symposium, Florence, Italy. (May 2005)

     
    Editorial Positions
     Associate Editor, Plant Signaling and Behavior (2005 - 2011). (2011 - 2011)

     Member of the Editorial Board, Plant Signaling and Behavior. (2010 - 2010)

     Member of the Editorial Board, Plant Signaling and Behavior. (2009 - 2009)

     Member of the Editorial Board, Plant Signaling and Behavior. (2008 - 2008)

    Supervised Theses & Dissertations
     Sherry LeClere, Ph.D. Analysis of the Function and Metabolism of Indole-3-Acetic Acid Conjugates in Arabidopsis thaliana. (2002) (Committee Member)

     Bethany Zolman, Ph.D. Genetic Analysis of Indole-3-Butyric Acid Response Mutants inArabidopsis thaliana. (2002) (Committee Member)

     Monica Magidin, Ph.D. Genetic Analysis of Auxin Homeostasis: Conjugate Sensitivity and Auxin Supersensitivity. (2002) (Committee Member)

     Breanna Ullmann, Ph.D. Identification and Characterization of Yeast Genes Involved in Defense against Oxidative Stress Induced by Macrophages. (2003) (Committee Member)

     Dennis Lee, Ph.D. Plant Responses to Environmental Stimuli: A Screen for Mutants in TCH4 Expression Behavior, and a Full-genome Assessment of Touch and Darkness Inducibility. (2004) (Thesis or Dissertation Director)

     Rebekah Norman Rampey, Ph.D. Genetic Analysis of IAA-Conjugate Sensitivity in Arabidopsis thaliana: Hydrolysis, Transcriptional Regulation, and Metal Homeostasis. (2004) (Committee Member)

     Melanie Monroe-Augustus, Ph.D. Genetic Approaches to Elucidating the Mechanisms of Indole-3-Acetic Acid and Indole-3-butyric Acid Function in Arabidopsis thaliana. (2004) (Committee Member)

     Donna Pattison, Ph.D. Characterization of Sugar-Insensitive Mutants and Analysis of Sugar-Regulated Gene Expression in Arabidopsis thaliana. (2004) (Committee Member)

     Elizabeth McCormack, Ph.D. Arabidopsis CAMs and CMLs: Regulation and Functions of Genes Encoding Potential Calcium Sensors. (2005) (Thesis or Dissertation Director)

     A. Raquel Adham, Ph.D. Molecular and Genetic Analysis of IBA Homeostasis and Action in Arabidopsis. (2005) (Committee Member)

     Andrew Woodward, Ph.D. Genes, Organelles, and Molecules that Influence Plant Development Through Auxin Regulation. (2005) (Committee Member)

     Nikkí Ayanna Delk, Ph.D. Regulation and Function of CML23 and CML24: Arabidopsis thaliana Genes Encoding Ca2+-Binding Proteins Implicated in Abscisic Acid Response, Floral Transition and Ion Homeostasis. (2006) (Thesis or Dissertation Director)

     Jaime Becnel, Ph.D. Xyloglucan Endotransglucosylase/Hydrolases of Arabidopsis: Expression and Functions of a Gene Family. (2006) (Thesis or Dissertation Director)

     Jeanne Rasbery, Ph.D. Genetic and Biochemical Characterization of the Squalene Epoxidase Gene Family in Arabidopsis thaliana. (2007) (Committee Member)

     Kathryn Luke, Ph.D. Exploring the Envelope of Life: Folding and Assembly Reactions of the Hyper-Thermostable Co-Chaperonin Protein 10 from Aquifex aeolicus. (2007) (Committee Member)

     Wiriya Chiranand, Ph.D. Regulation of Nitrosative Stress Response in the Fungal Pathogen Candida albicans by CTA4, a DNA-Binding Protein Transcription Factor. (2007) (Committee Member)

     Xiaoyang Bai, Ph.D. The Molecular Mechanism of Membrane Fusion in the Yeast S. cerevisiae. (2007) (Committee Member)

     Song Liu, Ph.D. In Vitro Fusion Catalyzed by the Sporulation-Specific t-SNARE Light-chain Spo20p Is Stimulated by Phosphatidic Acid. (2007) (Committee Member)

     Yitai Tang, Ph.D. Characterization of CnrN-mediated Size Regulation in Dictyostelium. (2007) (Committee Member)

     Catherine McCollum, Ph.D. Zebrafish lmo4b Restricts the Size of the Embryonic Forebrain and Eyes Through six3b and rx3, and is Regulated by Extracellular Signals in Patterning the Eye Along the Proximodistal Axis. (2007) (Committee Member)

     Song Liu, Ph.D. In Vitro Fusion Catalyzed by the Sporulation-Specific t-SNARE Light-chain Spo20p Is Stimulated by Phosphatidic Acid. (2007) (Committee Member)

     Diana Dugas, Ph.D. Genetic Analysis of MicroRNA Function in Arabidopsis Development. (2007) (Committee Member)

     Liping Dong, M.A. Functional and Structural Studies of the Influenza A Virus Polymerase Subunit PB1 and its Subcomplex with the Subunit PA. (2007) (Committee Member)

     Leighann Sullivan, Ph.D. Molecular and Genomic Analyses in Clostridium acetobutylicum. (2008) (Committee Member)

     Naxhiely Martinez, PhD Insights into Peroxisome Matrix Protein Import and IBA Metabolism Through Analysis of IBA-response Mutants. (2010) (Committee Member)

     Yu-Chang Tsai, PhD Functions of CML24: A potential calcium sensor of Arabidopsis. (2010) (Thesis or Dissertation Director)

     Nana Hanson, MA Uncovering the signal transduction pathway that regulates the proliferation of Dictyostelium. (2010) (Committee Member)

     Chelsey McKenna, PhD The role of Semaphorin3A/Neuropilin1 and Semaphorin3F/Neuropilin2 in the development of innervations and vascularization of the cornea. (2012) (Committee Member)

     Jed Lynn, PhD Anticipation of Nitric Oxide Stress in the Human Commensal Fungus Candida albicans. (2012) (Committee Member)

     Sarah Burkhart, PhD Using forward genetics to elucidate peroxisome biogenesis and peroxisome-associated protein degradation in Arabidopsis thaliana. (2013) (Committee Member)

     Jonathan Phillips, PhD Regulation of cell number and cell movement by autocrine signaling in Dictyostelium discoideum. (2013) (Committee Member)

     Avani Verma, PhD Characterization of Proteins Involved in Intracellular Membrane Fusion-Atlastin and Munc18c. (2013) (Committee Member)

     Danielle Goodspeed, PhD The Plant Circadian Clock Regulates Biotic Stress Resistance and Defense Hormone Levels. (2013) (Thesis or Dissertation Director)

     Tanvi Desai, PhD Characterization of Structure and Function Relationship between Domains of the ER Membrane Protein Atlastin. (2013) (Committee Member)

     John Liu, PhD The Plant Circadian Clock: Roles in Jasmonate Accumulation and Postharvest Plant Performanc. (Thesis or Dissertation Director)

     Yun-Ting Kao, PhD Using chemical genetics and reverse genetics to study peroxisome biogenesis and peroxin functions. (Committee Member)

     Yanwan Dai, PhD TBD. (Thesis or Dissertation Director)

     Pierce G Young, PhD Identifying the molecular components of pexophagy in Arabidopsis thaliana. (Committee Member)

    Awards, Prizes, & Fellowships
     IBB Hamill Award, IBB Hamill

     Fellow of the American Society of Plant Biologists, American Society of Plant Biologists (2014)

     IBB Medical Innovations Award, Tietze Family, Institute of Biosciences and Bioengineering (2014)

     Dunn Foundation Award, Dunn Foundation

     Cozzarelli Prize 2012, Proceedings of the National Academy of Sciences

     Gates Foundation Award, Gates Foundation

     Faculty Initiatives Award, Rice University (2012)

     Dunn Foundation Award, (December 2012)

     Collaborative Research Fund, Simmons Foundation (2011)

     IBB Medical Innovations Award, Sid Richardson Foundation (2011)

     Hamill Innovator Award, Institute of Biosciences and Bioengineering (July 12, 2007)

     Women's Resource Center Impact Award, Women's Resource Center at Rice University (spring semester 2006)