Plant Cell Advance Online Publication
Published on November 11, 2008; 10.1105/tpc.108.063065
Received September 4, 2008
Returned for revision October 15, 2008
Accepted October 29, 2008
Cellulose Binding Protein from the Parasitic Nematode Heterodera schachtii Interacts with Arabidopsis Pectin Methylesterase: Cooperative Cell Wall Modification during Parasitism
Tarek Hewezi 1, Peter Howe 1, Tom R. Maier 1, Richard S. Hussey 2, Melissa Goellner Mitchum 3, Eric L. Davis 4, and Thomas J. Baum 1*
1 Department of Plant Pathology, Iowa State University, Ames, Iowa 50011
2 Department of Plant Pathology, University of Georgia, Athens, Georgia 30602
3 Division of Plant Sciences and Bond Life Sciences Center, University of Missouri, Columbia, Missouri 65211
4 Department of Plant Pathology, North Carolina State University, Raleigh, North Carolina 27695
* To whom correspondence should be addressed. E-mail: tbaum{at}iastate.edu.
Plant–parasitic cyst nematodes secrete a complex of cell wall–digesting enzymes, which aid in root penetration and migration. The soybean cyst nematode Heterodera glycines also produces a cellulose binding protein (Hg CBP) secretory protein. To determine the function of CBP, an orthologous cDNA clone (Hs CBP) was isolated from the sugar beet cyst nematode Heterodera schachtii, which is able to infect Arabidopsis thaliana. CBP is expressed only in the early phases of feeding cell formation and not during the migratory phase. Transgenic Arabidopsis expressing Hs CBP developed longer roots and exhibited enhanced susceptibility to H. schachtii. A yeast two-hybrid screen identified Arabidopsis pectin methylesterase protein 3 (PME3) as strongly and specifically interacting with Hs CBP. Transgenic plants overexpressing PME3 also produced longer roots and exhibited increased susceptibility to H. schachtii, while a pme3 knockout mutant showed opposite phenotypes. Moreover, CBP overexpression increases PME3 activity in planta. Localization studies support the mode of action of PME3 as a cell wall–modifying enzyme. Expression of CBP in the pme3 knockout mutant revealed that PME3 is required but not the sole mechanism for CBP overexpression phenotype. These data indicate that CBP directly interacts with PME3 thereby activating and potentially targeting this enzyme to aid cyst nematode parasitism.
This article has been cited by other articles:
|
|
|
|
 
T. Hewezi, P. J. Howe, T. R. Maier, R. S. Hussey, M. G. Mitchum, E. L. Davis, and T. J. Baum
Arabidopsis Spermidine Synthase Is Targeted by an Effector Protein of the Cyst Nematode Heterodera schachtii
Plant Physiology,
February 1, 2010;
152(2):
968 - 984.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
|
|
N. Patel, N. Hamamouch, C. Li, T. Hewezi, R. S. Hussey, T. J. Baum, M. G. Mitchum, and E. L. Davis
A nematode effector protein similar to annexins in host plants
J. Exp. Bot.,
January 1, 2010;
61(1):
235 - 248.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
|
|
S. Wolf, G. Mouille, and J. Pelloux
Homogalacturonan Methyl-Esterification and Plant Development
Mol Plant,
September 1, 2009;
2(5):
851 - 860.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
|
|
M. R. Aluru, J. Zola, A. Foudree, and S. R. Rodermel
Chloroplast Photooxidation-Induced Transcriptome Reprogramming in Arabidopsis immutans White Leaf Sectors
Plant Physiology,
June 1, 2009;
150(2):
904 - 923.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
|
|
J. Mach
Will Remodel to Suit: Cellulose Binding Protein Secreted by a Parasitic Nematode Interacts with Arabidopsis Pectin Methylesterase
PLANT CELL,
November 1, 2008;
20(11):
2927 - 2927.
[Full Text]
[PDF]
|
|
|
|
|
