Forest

Gary Blomquist

Publications:
Gary Blomquist and Claus Tittiger

S.J. Seybold, D.R. Quilici, J.A. Tillman, D. Vanderwel, D.L. Wood and G.J. Blomquist. De novo biosynthesis of the aggregation pheromone components ipsenol and ipsdienol by the pine bark beetle, Ips paraconfusus Lanier andIps pini (Say)(Coleoptera: Scolytidae). Proc. Natl. Acad. Sci. (USA) 92:8393-8397 (1995).

P. Ivarsson, G.J. Blomquist, S.J. Seybold. In vitro production of pheromone intermediates in the bark beetles Ips pini (Say) and I. paraconfusus Lanier (Coleoptera:Scolytidae). Naturwissenschaften 84:454-457 (1997).

P. Ivarsson, C. Tittiger, C. Blomquist, C.E. Borgeson, S.J. Seybold, G.J. Blomquist and H.-E. Hogberg. Pheromone precursor synthesis is localized in the metathorax of Ips paraconfusus Lanier (Coleoptera: Scolytidae). Naturwissenschaften 85:507-511(1998).

J.A. Tillman, G.L. Holbrook, P. Dallara, C. Schal, D.L. Wood, G.J. Blomquist, and S.J. Seybold. Endocrine regulation of de novo aggregation pheromone biosynthesis in the pine engraver, Ips pini (Say) (Coleoptera: Scolytidae).Insect Biochem. Molec. Biol. 28:705-715 (1998).

C. Tittiger, G.J. Blomquist, P. Ivarsson, C.E. Borgeson and S.J. Seybold. Juvenile hormone regulation of HMG-R gene expression in the bark beetle Ips paraconfusus (Coleoptera: Scolytidae): implications for male aggregation pheromone biosynthesis. Cell. Mol. Life Sci. 55:121-127 (1999).

C. Tittiger, C. O'Keeffe, C.S. Bengoa, L. Barkawi, S.J. Seybold and G.J. Blomquist. Isolation and endocrine regulation of HMG-CoA synthase cDNA from the male Jeffrey pine beetle, Dendroctonus jeffreyi. Insect Biochem. Molec. Biol. 30:1203-1211 (2000).

G. M. Hall, C. Tittiger, G. Andrews, G. Mastick, M. Kuenzli, X. Luo, S.J. Seybold and G.J. Blomquist. Male pine engraver Beetles, Ips pini, synthesize the monoterpenoid pheromone ipsdienol de novo in midgut tissue. Naturwissenschaften 89:79-83 (2002).

G.M. Hall, C. Tittiger, G.J. Blomquist, G. Andrews, G. Mastick, L.A. Barkawi, Cody S. Bengoa, and S. J. Seybold. Male Jeffrey Pine Beetles, Dendroctonus jeffreyi, synthesize the pheromone component frontalin in anterior midgut tissue. Insect Biochem. Mol. Biol. 32:1525-1532 (2002).
J.B. Nardi, A. Gilg Young, E. Ujhelyi, C. Tittiger, M.J. Lehane and G.J. Blomquist. Specialization of midgut cells for synthesis of male isoprenoid pheromone in two scolytid beetles, Dendroctonus jeffreyi and Ips pini. Tissue and Cell. 226:221-231 (2002).

C. Tittiger, C. Bengoa, L. Barkawi, G.J. Blomquist and S.J. Seybold, Structure and juvenile hormone-mediated regulation of the HMG-CoA reductase gene from the Jeffrey pine beetle, Dendroctonus jeffreyi. Molecular and Cellular Endocrinology 199:11-21 (2003).

L.S. Barkawi, W. Francke, G.J. Blomquist and S.J. Seybold. Frontalin: De novo biosynthesis of an aggregation pheromone component by Dendroctonus spp. bark beetles (Coleoptera: Scolytidae). Insect Biochem. Molec. Biol. 33:773-788 (2003).
C.I. Keeling, G.J. Blomquist and C. Tittiger. Coordinated mevalonate gene expression upon feeding in the anterior midgut of the pine engraver beetle, Ips pini (Say) (Coleoptera: Scolytidae). Naturwissenschaften 91:324-329 (2004).

J.A. Tillman, F. Lu, L.M. Goodard, Z. Donaldson, S.C. Dwinell, C. Tittiger, G.M. Hall, A. J. Storer, G.J. Blomquist and S.J. Seybold. Juvenile hormone regulates de novo aggregation pheromone biosynthesis in the pine bark beetles Ips spp. (Coleoptera: Scolytidae) through transcriptional control of HMG-CoA reductase. J. Chem. Ecol. 30:2459-2494 (2004).

A.B. Gilg, J.C. Bearfield, C. Tittiger, W.H. Welch and G.J. Blomquist. Isolation and functional expression of an animal geranyl diphosphate synthase and its role in bark beetle pheromone biosynthesis. Proc. Natl. Acad. Sci. (USA) 102:9760-9765 (2005).

C.I. Keeling, S. Young, G.J. Blomquist and C. Tittiger. Juvenile hormone-regulated gene expression in the pheromone-producing midgut of the pine engraver beetle, Ips pini. Insect Mol. Biol. 15:207-216 (2006).

J.C. Bearfield, S. Young, G.J. Blomquist and C. Tittiger. Isolation, endocrine regulation, and mRNA distribution of the 3-hydroxy-3-methylglutaryl coenzyme A synthase (HMG-S) gene from the pine engraver, Ips pini. Insect Molec. Biol. 15:187-195 (2006).

P. Sandstrom, W.H. Welch, G.J. Blomquist, C. Tittiger. Functional expression of a bark beetle cytochrome P450 that hydroxylates myrcene to ipsdienol. Insect Biochem. Molec. Biol. 36:835-845 (2006).

M. D. Ginzel, J.C. Bearfield, C.I. Keeling, C.C. McCormack, G.J. Blomquist and C. Tittiger. Evidence for antennae-mediated negative-feedback regulation of pheromone production in the pine engraver beetle, Ips pini (Say). Naturwissenschaften (on line, 2006) 94:61-64 (2007).

J.C. Bearfield, C. D. Box, C. I. Keeling, S. Young, G. J. Blomquist and C. Tittiger. Isolation, endocrine regulation and transcript distribution of a putative primary JH-response gene from the pine engraver, Ips pini (Coleoptera: Scolytidae). Insect Biochem. Molec. Biol. 38:256-267 (2008).

P. Sandstrom, M. D. Ginzel, J. C. Bearfield, W. H. Welch, G. J. Blomquist and C. Tittiger. Myrcene hydroxylases do not determine enantimeric compostion of pheromonal ipsdienol in Ips spp. J. Chem. Ecol. 34:1584-1592 (2008).

A. B. Gilg, C. Tittiger and G. J. Blomquist. Unique animal prenyltransferase with monoterpene synthase acitivity. Naturwisschaften 96:731-735 (2009).

J. C. Bearfield, G. J. Blomquist, C. Tittiger, A. Henry and M. D. Ginzel. Two regulatory mechanisms of monoterpenoid pheromone production in Ips spp. bark beetles. J. Chem. Ecol. 35:689-697 (2009).

Aw, T., Schlauch, K., Keeling, C.I., Young, S., Bearfield, J.C., Blomquist, G.J. and Tittiger, C. Functional genomics of the mountain pine beetle (Dendrotonus ponderosae) midguts and fat bodies. BMC Genomics 11 (215) (2010).

G.J. Blomquist, R. Figueroa-Teran, M. Aw, M. Song, A. Gorzalski, N. Abbott, E. Chang, and Tittiger. Pheromone production in bark beetles. Insect Biochem. Mol. Biol. 40:699- 712 (2010).

R. Figueroa, W.H. Welch, G.J. Blomquist and C. Tittiger. Ipsdienol Dehydrogenase (IDOLDH): A novel oxidoreductase important for Ips pini pheromone production. Insect Biochem. Molec. Biol. 42:81-90.