Photo of Gabriel HolbrookGabriel P. Holbrook

associate professor

Fields of Interest: Plant physiology; plant biochemistry

Research Interests

Photosynthesis and photorespiration in higher plants are current topics of interest. Long term goals seek to understand limitations on photosynthetic carbon metabolism with a view to enhancing crop productivity. Research involves studies at the whole plant, cellular, organellar, and enzymic levels. Specific interests are:

  1. The regulation of the primary CO2 fixing enzyme, RuBP carboxylase/oxygenase, and
  2. Naturally occurring physiological and biochemical strategies adopted by certain plants to reduce the wasteful process of photorespiration. 

More Information about NIU at Oxford Study Abroad

Representative Publications

Holbrook GP,  Davidson Z, Tatara RA, Ziemer NL, Rosentrater KA, Grayburn AS. (2014). Use of the microalga Monoraphidium sp. grown in wastewater as a feedstock for biodiesel: cultivation and fuel characteristics. Applied Energy 131: 386-393.

Grayburn, S., Tatara, R., Rosentrater, K., Holbrook, G.P. (2013). Harvesting, oil extraction, and conversion of local filamentous algae growing in wastewater into biodiesel. International Journal  of Energy and Environment, Volume 4, Issue 2, 2013 pp.185-190

Holbrook, G.P. Navaleza A. and Kwong F. 2006. Water stress effects on Impatiens wallerana. Floriculture Ornamental and Plant Biotechnology: advances and topical issues. J. de Teixteira. (ed) Global Science Books Ch 25. pp 239-244

Holbrook, G.P. Navaleza A. and Kwong F. 2005 Water stress effects on Impatiens wallerana.  Floriculture Ornamental  and Plant Biotechnology: advances and topical issues.  J. de Teixteira. (ed) Global Science Books (in press)

Glockling, S.L., and Holbrook G. P. 2005. Endoparasites of soil nematodes and rotifers II. The genus Haptocillium. Mycologist, 19:2-9.

G. P. Holbrook and A.J. Keys (2003). Evidence for recycling of inorganic phosphate by wheat chloroplasts during photosynthesis at air levels of CO2 and O2. Journal of Plant Physiology (in press).

Swiech, R., S. Browning, D. Molsen, D.C. Stenger, and G. P. Holbrook. 2001. Photosynthetic responses of sugar beet and Nicotiana benthamiana Domin. infected with Beet Curly Top Virus. Physiological and Molecular Plant Pathology 58:43-52.

Heo J., and Holbrook, G.P. (1999) Regulation of 2-carboxyarabinitol 1-phosphate phosphatase: activation by glutathione and interaction with thiol reagents. Biochemical Journal 338: 409-416.

Holbrook, G.P., Campbell, W.J., Rowland-Bamford, A., Bowes, G. Intraspecific variation in the light/dark modulation of ribulose 1,5 bisphosphate carboxylase/oxygenase activity in soybean. J. Exp. Bot. 45:1119-1126; 1994. 

Holbrook, G.P., Hansen, J., Wallick, K., Zinnen, T.M. Starch accumulation during hydroponic growth of spinach and basil plants under carbon dioxide enrichment. Environ. Exp. Bot. 33(2):313-321; 1993. 

Holbrook, G.P., Turner, J.A., Polans, N.O. Dark inhibition of ribulose-1,5- bisphosphate carboxylase/oxygenase in legumes: a biosystematic study. Photosynthesis Research 32:37-44; 1992. 

Holbrook, G.P., Galasinski, S.C., Salvucci, M.E. Regulation of 2- carboxyarabinitol 1-phosphatase. Plant Physiol. 97:894-899; 1991. 

Beer S., Spencer W., Holbrook, G.P., Bowes G. Gas exchange and carbon fixation properties of the mat forming cyanophyte Lyngbya birgei. Aquatic Botany 38:221-230; 1990. 

Holbrook, G.P., Bowes, G., Salvucci M.E. Degradation of 2-carboxyarabinitol 1-phosphate by a specific chloroplast phosphatase. Plant Physiol. 90:673-678; 1989. 

Salvucci, M.E., Holbrook, G.P. Purification and properties of 2-carboxy-D- arabinitol 1-phosphatase. Plant Physiol 90:679-685; 1989. 

Salvucci, M.E., G.P. Holbrook, J.C. Anderson, G. Bowes. NADPH-dependent metabolism of the ribulose bisphosphate carboxylase inhibitor 2- carboxyarabinitol 1-phosphate by a chloroplast protein. FEBS Lett. 231:197- 201; 1988. 

Holbrook, G.P., Beer, S, Spencer, W.E., Reiskind, J.B., Davis, J.S., Bowes, G. Photosynthesis in marine macroalgae: evidence for carbon limitation. Can. J. Bot. 66:577-582; 1988. 

Holbrook, G.P., Campbell, W.J., Bowes, G. Effect of light intensity during soybean growth on the activation state of RuBP carboxylase from leaves in the light and dark. IN: Progress in Photosynthesis Research (J. Biggins, Ed.), Martinus Nijhoff Publ., Boston 3:399-402; 1987. 

Holbrook, G.P., Chollet, R. Photorespiratory properties of protoplasts from C3-C4 intermediate species of Moricandia. Plant Sci. 46:87-96, 1986. 

Holbrook, G.P., Jordan, D.B., Chollet, R. Reduced apparent photorespiration by the C3-C4 intermediate species, Moricandia arvensis and Panicum milioides. Plant Physiol. 77:578-583; 1985. 

Budde, R.J.A., Holbrook, G.P., Chollet, R. Studies in vitro, in situ and in vivo on the dark/light regulation of maize leaf pyruvate, Pi dikinase by reversible phosphorylation/dephosphorylation. Arch. Biochem. Biophys. 242 No. 1:282-290; 1985.


Curriculm Vitae


D.Phil., 1986, University of York, England 

B.S., 1979, Universityof York, England


Gabriel P. Holbrook
(815) 753-3199 
Office: MO 359
Dept. of Biological Sciences Nothern Illinois University
DeKalb, IL 60115

Additional Information

Visit NIU at Oxford page