TTU Home TTU Water Initiative Faculty Scott Holaday

Holaday photoScott Holaday, Ph.D.
Associate Chair, Department of Biological Sciences
Professor, Department of Biological Sciences

TTU, Dept. of Biological Sciences, P.O. Box 43131, Biological Sciences Building, Lubbock, TX 79409
phone number806.742.2657 |  fax number 1.806.742.2963
email addressscott.holaday@ttu.edu

Education

  • Ph.D., Botany, University of Florida (1978)
  • M.S., Forestry, University of Florida (1973)
  • B.S., Forestry, University of Illinois (1971)

Dr. Scott Holaday's area of interest is photosynthetic carbon metabolism. A major focus of his research involves the effects of environmental stresses, such as low or high temperatures and drought, affect photosynthesis and respiration of plants. I am involved in studies to reduce or eliminate the limitations to the rate of metabolic processes during stress.  For example, in collaborative arrangements, my lab is involved with attempts to use genetic engineering to improve drought and heat tolerance in crops, such as cotton and tomato. Projects presently under investigation involve (a) attempts to improve the rapidity with which photosynthesis for cotton, poplar, and tomato recovers after exposures to chilling and heat stress at high light intensities; (b) the study of starch storage in cotton and poplar stem and root and the role it plays in productivity under environmental stress. These projects exposure graduate and undergraduate students to molecular biology, biochemistry, and whole-plant physiology.

Dr. Holaday is a member of the American Society of Plant Physiologists and the Southern Section of the American Society of Plant Physiologists. He is an active member of the department and the university, chairing the following committees: Tenure and Promotion Committee, Graduate Student Selection Committee, Nonmajors Botany Committee, and Program Development Committee for the M.S. in Multidisciplinary Science; he has also participated on Space Committee, the Curriculum Committee, the Departmental Infrastructure Committee, and the Arts and Science Committee on Academic Programs.

Courses Taught
Biology of Plants, Botany for Biology Majors, Plant Physiology, Regulation of Photosynthetic and Respiratory Carbon Metabolism, Regulation of PHotosynthesis by Environmental Stress

Selected Publications

  • Kornyeyev, D., B.A. Logan, D.T. Tissue, R.D. Allen, and A.S. Holaday. 2006. Compensation for photosystem II photoinactivation by regulated non-photochemical dissipation influences the impact of photoinactivation on electron transport and CO2 assimilation.  Plant Cell Physiol. 47:437-446.
  • Logan, B.A., D. Kornyeyev, J. Hardison, and A.S. Holaday. 2006. The role of antioxidant enzymes in photoprotection.  Photosynthesis Res. 88:119-132.
  • He, C., J. Yan, G. Shen, L. Fu, A.S. Holaday, D. Auld, E. Blumwald, and H. Zhang. 2005. Expression of an Arabidopsis vacuolar sodium/proton antiporter gene in cotton improves photosynthetic performance under salt condisions and increasess fiber yield in the field.  Plant Cell Physiol. 46:1848-1854.
  • Singh, B., L. Haley, J. Nightengale, W.-H. Kang, C.H. Haigler, and A.S. Holaday. 2005 Long-term night chilling of cotton, Gossypium hirsutum, does not result in reduced CO2 assimilation.  Funct. Plant Biol. 32:655-666.
  • Kornyeyev, D., B.A. Logan, R.D. Allen, and A.S. Holaday. 2005. Field-grown cotton plants with elevated activity of chloroplastic glutathione reductase exhibit no significant alteration of diurnal or seasonal patterns of excitation energy partitioning and CO2 fixation.  Field Crops Res. 94:165-175.
  • Kornyeyev D.Y., B.A. Logan, and A.S. Holaday. 2005. Estimation of the photosystem II repair rate in the field.  Physiology and Biochemistry of Cultivated Plants (Ukrainian Journal) 37:17-23. [In Russian]
  • Kornyeyev, D., A.S. Holaday, and B.A. Logan. 2004. Minimization of the light energy absorbed by ‘closed’ reaction centers of photosystem II as a photoprotective strategy in higher plants.  Photosynthetica 42:377-386.