Publications Involving Helm Laboratory (1995-present)
- A phosphoprotein with phosphoglycerate mutase activity from the archeon
Sulfolobus solfataricus. M. B. Potters, B. T. Solow, K. M. Bischoff,
D. E. Graham, B. H. Lower, R. Helm, and P. J. Kennelly. J. Bacteriol.
185 (2003) 2112-2121.
- Form species Nostoc commune (Cyanobacteria). D.J. Wright, T. Prickett, R.F.
Helm and M. Potts. Inter. J. Syst. Evol. Microbiol., 51 (2001)
1839-1852.
- Engineering mammalian cells for solid-state sensor applications. F. Bloom,
P. Price, G. Lao, J.-L. Xia, J. H. Crowe, J. R. Battista, R.F. Helm and M.
Potts, Biosensors and Bioelectronics, 16 (2001) 603-608.
- Use of methanolysis for the determination of total ellagic and gallic acid
contents of wood and food products. Z. Lei, J. Jervis, R.F. Helm, J. Agric.
Food Chem., 49 (2001) 1165-1168.
- Screening protocol for the UV photoprotective pigment scytonemin. S.W. Hunsucker,
B.M. Tissue, M. Potts and R.F. Helm. Anal. Biochem., 288 (2001)
227-230.
- Gene transfer in the desiccation-tolerant cyanobacterium Chroococcidiopsis
sp.. D. Billi, E.I. Friedmann, R.F. Helm and M. Potts. J. Bacteriol.,
183 (2001) 2298-2305.
- The use of the 2-aminobenzoic acid tag for gel electrophoresis of oligosaccharides.
Z. Huang, T. Prickett, M. Potts and R.F. Helm. Carbohydr. Res., 328
(2000) 77-83.
- Neolignans and benzodioxanes through chiral aryl alkyl ether bond formation.
K. Li and R.F. Helm, Holzforschung, 54 (2000) 597-603.
- The effect of overliming on the toxicity dilute acid pretreated lignocellulosics:
The role of inorganics, uronic acids and ether-soluble organics. T.D. Ranatunga,
J. Jervis, R.F Helm, J.D. McMillan and R.J. Wooley. Enzyme Microb. Technol.,
27 (2000) 240-247.
- Structural characterization of the released polysaccharide of desiccation
tolerant Nostoc commune DRH-1, R.F. Helm, Z. Huang, D. Edwards, H.
Leeson, W. Peery and M. Potts, J. Bacteriol., 182 (2000) 974-982.
- Engineering desiccation tolerance in a bacterium, D. Billi, D.J. Wright,
R.F. Helm, M. Potts and J.H. Crowe, Appl. Environ. Microbiol., 66
(2000) 1680-1684.
- Active Fe-SOD and abundant sodF mRNA in Nostoc commune (Cyanobacteria)
after 13-years of desiccation, B.Shirkey, D.P. Kovarcik, D.J. Wright, G. Wilmoth,
T.F. Prickett, R.F. Helm, E.M. Gregory and M. Potts, J. Bacteriol.,
182 (2000) 189-197.
- C-Glycosidic ellagitannins from white oak heartwood and callus tissue, L.
Zhentian, J. Jervis and R.F. Helm, Phytochemistry, 51 (1999)
751-756.
- Towards understanding monomeric ellagitannin biosynthesis, R.F. Helm, L.
Zhentian, T. Ranatunga, J. Jervis and T. Elder, In Plant Polyphenols 2:
Chemistry and Biology, (G. Gross, R.W. Hemingway, and T. Yoshida, Eds),
(1999) 83-99.
- Lignin-polysaccharide interactions in woody plants, R.F. Helm, In: Lignin:
Historical, Biological, and Materials
Perspectives, ACS Symposium Series, 742 (2000) 161-171.
- Are Lignins Optically Active?, J. Ralph, J. Peng, F. Lu, R.D. Hatfield,
and R.F. Helm, J. Agric. Food Chem., 47 (1999) 2991-2996.
- (+)-Dihydromayurone from Juniperus occidentalis, L. Zhou, A.A. Ahmed, R.F.
Helm, N.A. Panella , G.O. Maupin and J.J. Karchesy. Planta Medica,
65 (1999) 680-681.
- Solution-state NMR of lignins, J. Ralph et al., In Progress in Lignocellulosics
Characterization, Chapter 3, (1999). TAPPI Press.
- Two acylated diarylheptanoid glycosides from red alder bark, R.F. Gonzalez-Laredo,
R.F. Helm, J. Chen, and J.J. Karchesy, J. Nat. Prod., 61 (1998)
1292-1294.
- Cell wall cross-linking in grasses by ferulates and diferulates. J. Ralph,
R.D. Hatfield, J.H. Grabber, H.J.G. Jung, S. Quideau, and R. F. Helm. In:
Lignin and Lignan Biosynthesis, ACS Symposium Series 697, pg.
209-236 (1998).
- Mechanistic Studies of the oxidation of a non-phenolic lignin model compound
by the laccase/1-hydroxybenzotriazole redox system. K. Li, R.F. Helm and K.-E.
L. Eriksson, Biotechnol. Appl. Biochem. 27 (1998) 239-243.
- Toxicity of Hardwood Extractives Toward Saccharomyces cerevisiae D5A Glucose
Fermentation, T.D. Ranatunga, J. Jervis, R.F. Helm, J.D. McMillan, C. Hatzis,
Biotechnol. Letters, 19 (1997) 1125-1127.
- Extracellular polysaccharide of Nostoc commune (Cyanobacteria) Inhibits
Fusion of Membrane Vesicles During Desiccation. D.R. Hill, T.W. Keenan, R.F.
Helm, M. Potts, L.M. Crowe, J. Crowe, J. Appl. Phycol., 9 (1997) 237-248.
- Lignin-Hydrolyzable Tannin Interactions in Wood. R.F. Helm, T.D. Ranatunga
and M. Chandra, J. Agric. Food Chem., 45 (1997) 3100-3106.
- Identification of Inhibitory Components Toxic Toward Zymomonas mobilis CP4(pZB5)
Xylose Fermentation. T.D. Ranatunga, J.J. Jervis, R.F. Helm, J.D. McMillan
and C. Hatzis, Appl. Biochem. Biotech., 67 (1997) 185-198.
- Lignin Glycosides: Preparation and Optical Resolution. R. F. Helm, M. Toikka,
K. Li and G. Brunow, J. Chem. Soc., Perkin Trans. 1, (1997) 533-537.
- Approaches to Synthetic Neolignans. K. Li and R. F. Helm, J. Chem. Soc.,
Perkin Trans. 1, (1996) 2425-2426.
- Rapid Quantitative 13C-NMR Analysis of Hydroxyl Environments in Lignins.
L. M. Orejuela and R. F. Helm. Holzforschung, 50 (1996)
569-572.
- Synthesis and Rearrangement Reactions of Ester-Linked Lignin-Carbohydrate
Model Compounds. K. Li and R. F. Helm, J. Agric. Food Chem., 43
(1995) 2098-2103.
- A Practical Synthesis of Methyl 4-O-methyl-a-D-glucopyranosiduronic
acid. K. Li and R. F. Helm, Carbohydr. Res., 273 (1995)
249-253.
- Complete threo-Stereoselectivity for the Preparation of b-O-4 Lignin Model Compounds. R. F. Helm and K. Li, Holzforschung,
49 (1995) 533-536.