Department of Plant Pathology

The Baum Lab

Got a question?

Correspondence should be directed to:

Dr. Thomas Baum
Professor and Chair
Department of Plant Pathology
351 Bessey Hall
Iowa State University
Ames, IA 50011

tbaum@iastate.edu
ph: (515) 294-2398
fax:(515) 294-9420

Questions about the website should be directed to the site creator, Tom Maier.

trmaier@iastate.edu
ph: (515) 294-8854

Papers

 

2009

  • Patel N, Hamamouch N, Li C, Hewezi T, Hussey RS,
    Baum TJ, Mitchum M, Davis EL. A nematode effector protein similar to annexins in host
    plants. J Exp Bot. 2009; doi:10.1093/jxb/erp293

  • Patel, N., Hamamouch, N., Li, C., Hussey, R., Mitchum, M.G., Baum, T., Wang, X., Davis, E.L. 2008. Similarity and functional analyses of expressed parasitism genes in Heterodera schachtii and Heterodera glycines. Journal of Nematology. 40(4):299-310.
  • Elling AA, Mitreva M, Gai X, Martin J, Recknor J, Davis EL, Hussey RS, Nettleton D, McCarter JP, Baum TJ. Sequence mining and transcript profiling to explore cyst nematode parasitism. BMC Genomics. 2009 Jan 30;10:58.

2008

  • Sindhu AS, Maier TR, Mitchum MG, Hussey RS, Davis EL, Baum TJ. Effective and specific in planta RNAi in cyst nematodes: expression interference of four parasitism genes reduces parasitic success. J Exp Bot. 2009;60(1):315-24.
  • Hewezi T, Howe P, Maier TR, Hussey RS, Mitchum MG, Davis EL, Baum TJ. Cellulose binding protein from the parasitic nematode Heterodera schachtii interacts with Arabidopsis pectin methylesterase: cooperative cell wall modification during parasitism. Plant Cell. 2008 Nov;20(11):3080-93. (See feature at right)
  • Hewezi T, Howe P, Maier TR, Baum TJ. Arabidopsis small RNAs and their targets during cyst nematode parasitism. Mol Plant Microbe Interact. 2008 Dec;21(12):1622-34. (See feature at right)
  • Abad P, Gouzy J, Aury JM, Castagnone-Sereno P, Danchin EG, Deleury E, Perfus-Barbeoch L, Anthouard V, Artiguenave F, Blok VC, Caillaud MC, Coutinho PM, Dasilva C, De Luca F, Deau F, Esquibet M, Flutre T, Goldstone JV, Hamamouch N, Hewezi T, Jaillon O, Jubin C, Leonetti P, Magliano M, Maier TR, Markov GV, McVeigh P, Pesole G, Poulain J, Robinson-Rechavi M, Sallet E, Ségurens B, Steinbach D, Tytgat T, Ugarte E, van Ghelder C, Veronico P, Baum TJ, Blaxter M, Bleve-Zacheo T, Davis EL, Ewbank JJ, Favery B, Grenier E, Henrissat B, Jones JT, Laudet V, Maule AG, Quesneville H, Rosso MN, Schiex T, Smant G, Weissenbach J, Wincker P. Genome sequence of the metazoan plant-parasitic nematode Meloidogyne incognita. Nat Biotechnol. 2008 Aug;26(8):909-15.
  • Wubben, M. J. E., J. Jin and T. J. Baum 2008.  Cyst nematode parasitism of Arabidopsis thaliana is inhibited by salicylic acid and elicits uncoupled SA-independent PR gene expression in roots.  Molecular Plant-Microbe Interactions: 21:424-432.

2007

  • Elling, A. A.,, E. L. Davis, R. S. Hussey, and T. J. Baum 2007.  Active uptake of cyst nematode parasitism proteins into the plant cell nucleus. International Journal for Parasitology 37:1269-1279 (Cover Article).
  • Elling, A. A., M. Mitreva, J. Recknor, X. Gai, J. Martin, T. R. Maier, J. P. McDermott, T. Hewezi, D. McK. Bird, E. L. Davis, R. S. Hussey, D. Nettleton, J. P. McCarter and T. J. Baum 2007. Divergent evolution of arrested development in the dauer stage of Caenorhabditis elegans and the infective stage of Heterodera glycines.  Genome Biology 8:R211.
  • Ithal, N., J. Recknor, D. Nettleton, T. Maier, T. J. Baum, M.G. Mitchum. 2007. Developmental transcript profiling of cyst nematode feeding cells in soybean. Molecular Plant-Microbe Interactions 20:510-525.
  • Ithal, N., J. Recknor, D. Nettleton, L. Hearne, T. Maier, T. J. Baum, M.G. Mitchum. 2007. Parallel genome-wide expression profiling of host and pathogen during soybean cyst nematode infection of soybean. Molecular Plant-Microbe Interactions 20:293-305 (Cover Article).
  • Mazarei, M., A. A. Elling, T. R. Maier, D. P. Puthoff, and T. J. Baum 2007. GmEREBP1 is a transcription factor activating defense genes in soybean and Arabidopsis. Molecular Plant-Microbe Interactions 20:107-119.
  • Sukno, S. A., J. McCuiston, M.-Y. Wong, X. Wang, M. R. Thon, R. S. Hussey, T. J. Baum, and E. L. Davis.  Quantitative detection of double-stranded RNA-mediated gene silencing of parasitism genes in Heterodera glycines. Journal of Nematology 39:145-152.
  • Van de Mortel, M., J. C. Recknor, M. A. Graham, D. Nettleton, J. D. Dittman, R. T. Nelson, C. V. Godoy, R. V. Abdelnoor, Á. M. R. Almeida, T. J. Baum, and S. A. Whitham 2007.  Distinct biphasic mRNA changes in response to Asian Soybean Rust infection.  Molecular Plant-Microbe Interactions 20:887–899 (Cover Article).

2006

  • Huang, G., R. Allen, E. L. Davis, T. J. Baum, and R. S. Hussey 2006. Engineering broad root-knot resistance in transgenic plants by RNAi silencing of a conserved and essential root-knot nematode parasitism gene.  Proc. Natl. Acad. Sci. USA:103: 14302–14306.
  • Huang, G., R. Dong, R. Allen, E. L. Davis, T. J. Baum, and R. S. Hussey 2006.  A Root-Knot Nematode Secretory Peptide Functions as a Ligand for a Plant Transcription Factor. Molecular Plant-Microbe Interactions 19:463-470.

2005

  • Huang, G., R. Dong, R. Allen, E. L. Davis, T. J. Baum, and R. S. Hussey.  Developmental expression and molecular analysis of two Meloidogyne incognita pectate lyases.  International Journal of Parasitology: in press.
  • Wang, X., M. G. Mitchum, B. Gao, C. Li, H. Diab, T. J. Baum, R. S. Hussey and E. L. Davis. A parasitism gene from a plant-parasitic nematode with function similar to CLAVATA3/ESR (CLE) of Arabidopsis thaliana.  Molecular Plant Pathology: in press.

2004

  • Davis, E. L., R. S. Hussey, and T. J. Baum.  Getting to the roots of parasitism by Nematodes.  TRENDS in Parasitology 20: 134-141.
  • Gao, B., R. Allen, Eric L. Davis, T. J. Baum, and Richard S. Hussey.  Molecular characterisation and developmental expression of a cellulase-binding protein gene in the soybean cyst nematode Heterodera glycines. International Journal for Parasitology 34: 1377-1383.
  • Gao B., R. Allen, E. L. Davis, T. J. Baum, and R. S. Hussey.  Developmental expression and biochemical properties of a b1,4-endoglucanase family in the soybean cyst nematode, Heterodera glycines.  Molecular Plant Pathology 5(2): 93-104.
  • Huang, G., R. Dong, T. R. Maier, R. Allen, E. L. Davis, T. J. Baum, and R. S. Hussey. Use of solid-phase subtractive hybridization for the identification of parasitism gene candidates from the root-knot nematode Meloidogyne incognita.  Molecular Plant Pathology 5(3): 217-222.
  • Huang, G., R. Dong, R. Allen, E. L. Davis, T. J. Baum, and R. S. Hussey. Characterization of two chorismate mutases from the root-knot nematode Meloidogyne incognita. Molecular Plant Pathology in press.
  • Mazarei, M., K. A. Lennon, D. P. Puthoff, S. R. Rodermel, and T J. Baum.  Homologous soybean and Arabidopsis genes share responsiveness to cyst nematode infection.   Molecular Plant Pathology 5(5):  409-423.
  • Wubben, M. J. E., S. R. Rodermel, and T. J. Baum. Mutation of a UDP-glucose-4-epimerase alters root ethylene signal transduction and nematode susceptibility in Arabidopsis thaliana. The Plant Journal 40: 712-724.
  • Mitreva, M., Elling, A.A., Dante, M., Kloek, A.P., Kalyanaraman, A., Aluru, S., Clifton, S.W., McK. Bird, D., Baum, T.J., and McCarter, J.P. (2004): A survey of SL1-spliced transcripts from the root-lesion nematode Pratylenchus penetrans. Mol. Genet. Genomics 272:138-148.

2003

  • Gao, B., R. Allen, T. R. Maier, E. L. Davis, T. J. Baum, and R. S. Hussey 2003. The parasitome of the phytonematode Heterodera glycines. Molecular Plant-Microbe Interactions 16: 720-726.
  • Huang, G., B. Gao, T. Maier, R. Allen, E. L. Davis, T. J. Baum, and R. S. Hussey 2003.  A Profile of Putative Parasitism Genes Expressed in the Esophageal Gland Cells of the Root-Knot Nematode Meloidogyne incognita.  Molecular Plant-Microbe Interactions 16:  376-381. 
  • Mazarei, M., K. A. Lennon, D. P. Puthoff, S. R. Rodermel, and T. J. Baum 2003.  Expression of an Arabidopsis phosphoglycerate mutase homologue is localized to apical meristems, regulated by hormones, and induced by sedentary plant-parasitic nematodes.  Plant Molecular Biology 53:  513-530. 
  • Puthoff, D. P., D. Nettleton, S. R. Rodermel, and T. J. Baum 2003.  Arabidopsis gene expression changes during cyst nematode parasitism revealed by statistical analyses of microarray expression profiles.  The Plant Journal  33:  911-921.


2002

  • de Boer, J. M., J. P. McDermott, X. Wang, T. Maier, F. Qiu, R. S. Hussey, E. L. Davis, and T. J. Baum 2002.  The use of DNA microarrays for the developmental expression analysis of cDNAs from the oesophageal gland cell region of Heterodera glycines.  Molecular Plant Pathology 3: 262-270.
  • de Boer, J. M, J. P. McDermott, E. L. Davis, R. S. Hussey, H. Popeijus, G. Smant, and T. J. Baum 2002.  Cloning of a putative pectate lyase gene expressed in the subventral esophageal glands of Heterodera glycines. Journal of Nematology 34:9-11.
  • Gao, B., R. Allen, T. Maier, E. L. Davis, T. J. Baum, and R. S. Hussey 2002.  Identification of a new beta-1,4-endoglucanase expressed in the subventral gland cells of Heterodera glycines. Journal of Nematology 34:12-15.
  • Gao B., R. Allen, T. Maier, J. P. McDermott, E. L. Davis, T. J. Baum, and R. S. Hussey 2002.  Characterisation and developmental expression of a chitinase gene in Heterodera glycines.  International Journal of Parasitology 32:1293-1300.
  • Hussey, R. S., E. L. Davis, and T. J. Baum 2002. Secrets in secretions: genes that control nematode parasitism of plants. Brazilian Journal of Plant Physiology 14:123-135.
  • Mazarei, M., D. P. Puthoff, J. K. Hart, S. R. Rodermel, and T. J. Baum 2002.  Identification and characterization of a soybean Ethylene-Responsive Element-Binding Protein gene whose mRNA expression changes during soybean cyst nematode Infection. Molecular Plant-Microbe Interactions 15:577-586.

2001
  • Gao, B., R. Allen, T. Maier, E. L. Davis, T. J. Baum, and R. S. Hussey 2001. Identification of putative parasitism genes expressed in the esophageal gland cells of the soybean cyst nematode, Heterodera glycines. Molecular Plant-Microbe Interactions 14: 1247-1254.
  • Gao, B., R. Allen, T. Maier, E. L. Davis, T. J. Baum, and R. S. Hussey 2001. Molecular characterization and expression of two venom allergen-like protein genes in Heterodera glycines. The International Journal of Parasitology 31: 1617-1625.
  • Wang, X., R. Allen, X. Ding, T. R. Maier, J. M. de Boer, T. J. Baum, R. S. Hussey, and E. L. Davis 2001. Secretion signal peptide selection of cDNA cloned directly from the esophageal gland cells of Heterodera glycines. Molecular Plant-Microbe Interactions 14: 536-544.
  • Wubben, M. J. E., H. Su, S. R. Rodermel, T. J. Baum. Susceptibility to the sugar beet cyst nematode is modulated by ethylene signal transduction in Arabidopsis. Molecular Plant-Microbe Interactions 14: 1206-1212.

2000
  • Baum, T. J., K. A. Hardy, H. Su, M. J. E. Wubben, and S. R. Rodermel 2000. Arabidopsis thaliana mutants with altered susceptibility to the sugarbeet cyst nematode. Journal of Nematology 32:166-173.
  • Goellner, M., G. Smant, J. M. de Boer, T. J. Baum, and E. L. Davis 2000. Expression of beta-1,4-endoglucanase genes by Globodera tabacum during parasitism of tobacco roots. Journal of Nematology 32:154-165
  • Hermsmeier, D., J. K. Hart, M. Byzova, S. R. Rodermel, and T. J. Baum 2000. Changes in mRNA abundance within Heterodera schachtii-infected roots of Arabidopsis thaliana. Molecular Plant Microbe Interactions. 13:309-315.  

1999
  • de Boer, J. M., Y. Yan, X. Wang, G. Smant, R. S. Hussey, E. L. Davis, and T. J. Baum 1999.  Developmental Expression of Secretory beta-1,4-endoglucanases in the Subventral Esophageal Glands of Heterodera glycines. Molecular Plant-Microbe Interactions 12:663-669.
  • Rosso, M., B. Favery, C. Piotte, L. Arthaud, J. M. de Boer, R. S. Hussey, J. Bakker, T. J. Baum, and P. Abad 1999.  Isolation of a cDNA Encoding a beta-1,4-endoglucanase in the Root-Knot Nematode Meloidogyne incognita and Expression Analysis During Plant Parasitism. Molecular Plant-Microbe Interactions 12:585-591
  • Wang, X., D. Meyers, Y. Yan, T. J. Baum, G. Smant, R. S. Hussey, and E. L. Davis 1999.  In Planta Localization of a beta-1,4-Endoglucanase Secreted by Heterodera glycines. Molecular Plant-Microbe Interactions 12(1):64-67.


1998

  • de Boer, J. M., Y. Yan, E. L. Davis, G. Smant, and T. J. Baum 1998.  In situ hybridization to messenger RNA in Heterodera glycines.  Journal of Nematology. 30(3):309-312.  
  • Hermsmeier, D., M. Mazarei, T. J. Baum 1998.  Differential Display Analysis of the Early Compatible Interaction Between Soybean and the Soybean Cyst Nematode.  Molecular Plant-Microbe Interactions.  11(12):1258-1263.  
  • Smant, G., J. P. W. G. Stokkermans, Y. Yan, J. M. de Boer, T. J. Baum, X. Wang, R. S. Hussey, F. J. Gommers, B. Henrissat, E. L. Davis, J. Helder, A. Schots, and J. Bakker 1998.  Endogenous cellulases in animals:  Isolation of B-1,4-endoglucanase genes from two species of plant-parasitic cyst nematodes. Proc. Natl. Acad. Sci. 95:4906-4911.
  • Yan, Y., G. Smant, J. Stokkermans, L. Qin, J. Helder, T. J. Baum, A. Schots, E. L. Davis 1998.  Genomic organization of four beta-1,4-endoglucanase genes in plant-parasitic cyst nematodes and its evolutionary implications. Gene (220)1-2:61-70.
1996
  • Baum, T. J., W. A. Parrott, A. Hiatt, L. H. Pratt, and R. S. Hussey 1996. Expression in tobacco of a monoclonal antibody specific to secretions of the root-knot nematode. Molecular Plant-Microbe Interactions 9:382-387.

1995


    • Baum, T. J., B. A. Fortnum, and S. A. Lewis 1995. Effects of Meloidogyne arenaria infection on M. incognita-resistance in tobacco. Fundamental and Applied Nematology 18:583-588.
    • Baum, T. J., B. A. Fortnum, and S. A. Lewis 1995. Characteristics of mixed Meloidogyne arenaria and M. incognita populations in flue-cured tobacco. Fundamental and Applied Nematology 18:589-594.

    1994

    • Baum, T. J., S. A. Lewis, and R. A. Dean. 1994  Isolation, characterization, and application of DNA probes specific to Meloidogyne arenaria.  Phytopathology 84:489-494.
    • Baum, T. J., P. M. Gresshoff, S. A. Lewis, and R. A. Dean 1994.  Characterization and phylogenetic analysis of four root-knot nematode species using DNA Amplification Fingerprinting and automated Polyacrylamide Gel Electrophoresis.  Molecular Plant-Microbe Interactions 7:39-47.

    Non-refereed Manuscripts


    Baum, T. J. 2004.  “Kommunikation zwischen Zystennematoden und ihren Wirtspflanzen (Communication between cyst nematodes and their host plants)” in the Festschrift (Proceedings) of the colloquium to celebrate the retirement of Prof. Dr. Urs Wyss.

    Baum, T. J., B. Gao, T. R. Maier , R. S. Hussey, and E. L. Davis 2004.  Secrets in Secretions: analysis of the parasitome of Heterodera glycines.  Pp. 289-292. In Biology of Plant-Microbe Interactions (Vol. 4), IS-MPMI, St. Paul, MN, USA.

    Baum, T. J., R. S. Hussey, and E. L. Davis 2003.  Parasitism Gene Discovery in Sedentary Phytonematodes.  In Nematology Monographs and Perspectives, Vol. 2, pp 1-8.  Koninklijke Brill NV, Leiden.

    Gao, B., R. Allen, T. Maier, E. L. Davis, T. J. Baum, and R. S. Hussey 2002.  Large-scale identification of parasitism genes of the soybean cyst nematode.  In Biology of Plant-Microbe Interactions (Vol. 3), S. A. Leong, C. Allen, and E. W. Triplett, eds. IS-MPMI, St. Paul, MN, USA.

    Baum, T. J. 2001.  Nematode secretions: the makings of a plant parasite.  Phytopathology 91:S161

    Baum, T. J. 1999.  Book Review of ‘Plant-Microbe Interactions and Biological Control’ edited by G. J. Boland and L. D. Kuykendall.  Crop Science 39:584-585.

    Baum, T. J. 1999.  Advances in cyst and root-knot nematode biology through molecular approaches.  Pp. 291-294 in Proceedings of the World Soybean Research Conference VI, Chicago, Illinois, August 4 – 7, 1999.

    Baum, T. J. 1999.  Penetration, migration, and feeding: the roles of SCN secretions.  Pp. 36 in Proceedings of the National Soybean Cyst Nematode Conference, Orlando, Florida, January 7 – 8, 1999.

    Baum, T. J, R. S. Hussey, W. A. Parrott, and L. H. Pratt 1995.  Development of novel nematode-resistant plants with plantibodies.  SON Molecular Biology Committee Newsletter Volume 7.

     

    Invited Reviews


    Davis EL, Hussey RS, Mitchum MG, Baum TJ. Parasitism proteins in nematode-plant interactions. Curr Opin Plant Biol. 2008 Aug;11(4):360-6.

     

    Mitchum, M. G., R. S. Hussey, E. L. Davis, and T J. Baum 2006.  Nematode plant pathogens – progress in the application of biotechnology to understanding pathogenesis.  CABI book chapter.

    Baum, T. J., R. S. Hussey, and E. L. Davis 2007. Root-knot and cyst nematode parasitism genes: the molecular basis of plant parasitism.  In: Setlow JK (ed) Genetic Engineering: Principles and Methods. Springer, New York, NY, pp 17-43.

    Davis, E. L., R. S. Hussey, and Baum, T. J. 2004 Getting to the Roots of Parasitism by Nematodes.  Trends in Parasitology 20: 134-141.
    Hussey, R. S., E. L. Davis, and T. J. Baum 2002. Secrets in secretions: genes that control nematode parasitism of plants. Brazilian Journal of Plant Physiology 14:123-135.

    Davis, E. L., R. S. Hussey, T. J. Baum, J. Bakker, A. Schots, M.-N. Rosso, and P. Abad 2000.  Nematode Parasitism Genes.  Annual Review of Phytopathology 38:365-396.

 

Featured Publications

 

December 2008 MPMI Cover


Arabidopsis small RNAs and their targets during cyst nematode parasitism. Molecular plant-microbe interactions : MPMI 2008;21(12):1622-34.

MPMI2008cover

About the cover(from MPMI):

MicroRNAs (miRNAs) and other small RNAs are involved in developmental and biological processes in plants, and some of these processes are similar to those implicated in the formation and function of the cyst nematode feeding site, the syncytium. The cover image shows two third-stage juveniles of the sugar beet cyst nematode Heterodera schachtii that are sedentary and feeding on roots of Arabidopsis thaliana. Their developing syncytia can clearly be seen as swollen and dense regions in the center of the infected root when compared to the uninfected root above. In this issue, evidence is presented for the implication of miRNAs and other small RNAs in cyst nematode parasitism. The stem-loop structures of a subset of miRNAs that were found to be differentially regulated in A. thaliana in response to infection by H. schachtii are represented in boxes above and below the roots. For the article by Hewezi et al., see page 1622.

 

November 2008
The Plant Cell In Brief


Will Remodel to Suit: Cellulose Binding Protein Secreted by a Parasitic Nematode Interacts with Arabidopsis Pectin Methylesterase Jennifer Mach
PLANT CELL 2008 20: 2927

 

largsyn

Highlights the following Plant Cell paper:

Cellulose Binding Protein from the Parasitic Nematode Heterodera schachtii Interacts with Arabidopsis Pectin Methylesterase: Cooperative Cell Wall Modification during Parasitism. Tarek Hewezi, Peter Howe, Tom R. Maier, Richard S. Hussey, Melissa Goellner Mitchum, Eric L. Davis, and Thomas J. Baum
Plant Cell 2008 20: 3080-3093.

 
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