Qiang Sun, Ph.D.

Professor of Biology

Office: CBB 348
Lab: CBB 260
Phone: (715) 346-2737
Fax: (715) 346-3624
Email: qsun@uwsp.edu


Ph.D., Plant Structure and Evolution - Tohoku University, Japan
M.S., Plant Anatomy - Xiamen University, China
B.S., Botany - Xiamen University, China


Biol 101 - General Biology
Biol 100 - Biological Principles and the Human Environment
Biol 130 - Introduction to Plant Biology​
Biol 331/531 - Plant Anatomy
Biol 399 - Independent Study in Biology
Biol 428/628 - Scanning Electron Microscopy Workshop
Biol 499 - Internship in Biology

Honors and Awards

Excellence in Scholarship Award, Department of Biology, University of Wisconsin-Stevens Point
University Scholar Award, University of Wisconsin-Stevens Point
2013 Excellence in Scholarship Award, Department of Biology, University of Wisconsin-Stevens Point
2011 Excellence in Scholarship Award, Department of Biology, University of Wisconsin-Stevens Point
2007 Best Poster Award (BSA Structure and Development Section), Botany & Plant Biology 2007 (Joint Annual Meeting of Botanical Society of America and American Society of Plant Biologists)
2004 Membership of Gamma Sigma Delta, the Honor Society of Agriculture
1997-2001 Japanese Government Scholarship, Ministry of Education, Culture, Sports, Science and Technology of Japan
1995 Best Research Paper, 2nd Annual Academic Conference (Fujian) for Young Scientists of China Association for Science and Technology
1994 Distinguished Teacher honor, Xiamen University, China
1994 Huaqiang Faculty Scholarship, Xiamen University, China
1994 Distinguished Teacher honor, Department of Biology, Xiamen University, China
1992 Distinguished Teacher honor, Department of Biology, Xiamen University, China
1990 Kwang-Hua Scholarship, Kwang-Hua Education Foundation, China

Professional Affiliations

American Society of Plant Biologists (ASPB)
Botanical Society of America (BSA)​

Current Research Grants

2016-19Roper MC, Canto D, Sun Q, McElrome AJ. Characterization of Xylella fastidiosa plant cell wall degradation and inhibition of the Type II secretion machinery. California Department of Food and Agriculture.
2010-12 Sun Q, Labavitch JM. Clarification of xylem features limiting the entry and systemic spread of Xylella fastidiosa in grapevines” USDA-University of California Pierce’s Disease Research Grants Program.
2008-2011Labavitch JM, Sun Q. Do cell wall structures limit Xylella fastidiosa distribution in inoculated Pierce’s disease susceptible and resistant grapevines?” California Department of Food and Agriculture.

Select Publications


Ingel B, Reyes C, Massonnet M, Boudreau B, Sun Y, Sun Q, EcElrone AK, Cantu, D, Roper, MC. 2021. Xyella fastidiosa casues transcriptional shifts that precede tylose formation and starch depletion in xylem. Molecular Plant Pathology. 22: 175-188. (Cover article). https://doi.org/10.1111/mpp.13016

Alkasrawi M, Rajangam AS, Tawalbeh M, Kafiah F, Al-Othman A, Al-Asheh S, Sun Q. 2020. Techno-economic anaylsis and a novel assessment technique of paper mill sludge conversion to bioethanol toward sustainable energy production. International Journal of Energy Research 44: 12602-12613. https://doi.org/10.1002/er.5667

Ingel B, Jeske D, Sun Q, Grosskopf J, Roper C. 2019. Xylella fastidiosa endoglucanases mediate the rate of Pierce’s disease development in Vitis vinifera in a cultivar-dependent manner. Molecular Plant-Microbe Interactions 32: 1402-1414.   https://doi.org/10.1094/MPMI-04-19-0096-R

Massonnet M, Balderas RF, Galarneau E, Miki S, Lawrence D, Sun Q, Wallis CM, Baumgartner K, Cantu D. 2017. Neofusicoccum parvum colonization of the grapevine woody stem triggers asynchronous host responses at the site of infection and in the leaves. Frontiers in Plant Science.  https://doi.org/10.3389/fpls.2017.01117

Sun Q, Sun YL, Juzenas K. 2017. Immunogold scanning electron microscopy can reveal the polysaccharide architecture of xylem cell walls. Journal of Experimental Botany 68: 2231-2244. (Cover article). https://doi.org/10.1093/jxb/erx103

Sun Q, Sun YL, Walker MA, Labavitch LM. 2013. Vascular occlusions in grapevines with Pierce’s disease make disease symptom development worse. Plant Physiology 161: 1529-1541.  https://doi.org/10.1104/pp.112.208157

Sun Q, Greve LC, Labavitch LM. 2011. Polysaccharide compositions of intervessel pit membranes contribute to Pierce’s disease resistance of grapevines. Plant Physiology 155: 1976-1987.  https://doi.org/10.1104/pp.110.168807

Pérez-Donoso AG, Sun Q, Roper C, Greve LC, Kirkpatrick BC, Labavitch LM. 2010. Cell wall-degrading enzymes enlarge the pore size of intervessel pit membranes in healthy and Xylella fastidiosa-infected grapevines. Plant Physiology 152: 1748-1759.  https://doi.org/10.1104/pp.109.148791

Sun Q, Rost, TL, Matthews MA. 2008. Wound-induced vascular occlusions in grapevines (Vitis vinifera L.): tyloses in summer and gels in winter. American Journal of Botany 95: 1498-1505.  https://doi.org/10.3732/ajb.0800061

Sun Q, Rost TL, Reid MS, Matthews MA. 2007. Ethylene and not embolism is required for wound-induced tylose development in stems of grapevines (Vitis vinifera L.) Plant Physiology 145: 1629-1636. (Featured article)  https://doi.org/10.1104/pp.107.100537

Sun Q, Rost TL, Matthews MA. 2006. Pruning-induced tylose development in stems of current-year shoots of Vitis vinifera (Vitaceae). American Journal of Botany 93: 1567-1576. (Cover article)  https://doi.org/10.3732/ajb.93.11.1567

Sun Q, Yoda K, Suzuki H. 2005. Internal axial light conduction in the stems and roots of herbaceous plants. Journal of Experimental Botany 56: 191-203.  https://doi.org/10.1093/jxb/eri019

Sun Q, Kobayashi K, Suzuki M. 2004. Intercellular space system in xylem rays of pneumatophores in Sonneratia alba (Sonneratiaceae) and its possible functional significance. International Association of Wood Anatomists Journal 25: 141-154. https://doi.org/10.1163/22941932-90000356

Sun Q, Yoda K, Suzuki H. 2004. Spectral properties of light conducted in stems of woody plants show marked seasonal differences suggesting a close relationship with photomorphogenesis. International Association of Wood Anatomists Journal 25: 91-101. https://doi.org/10.1163/22941932-90000352

Sun Q, Yoda K, Suzuki M, Suzuki H. 2003. Vascular tissue in the stem and roots of woody plants can conduct light. Journal of Experimental Botany 387: 1627-1635.  https://doi.org/10.1093/jxb/erg167

Sun Q, Suzuki M. 2001. Quantitative character variations of cambial derivatives in mangroves and their functional significance. Trees 15: 249-261.  https://doi.org/10.1007/s004680100094

Sun Q, Suzuki M. 2000. Wood anatomy of mangrove plants in Iriomote Island of Japan: a comparison with mangrove plants from lower latitudes. Acta Phytotaxonomica et Geobotanica 51: 37-55. https://doi.org/10.18942/bunruichiri.KJ00001077448

Sun Q, Lin P. 1997.  Wood structure of Aegiceras corniculatum and its ecological adaptations to salinities. Hydrobiologia 352: 61-66.  https://doi.org/10.1023/A:1003092906969

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