Partial Characterization Of Cytosolic Superoxide-Dismutase Activity In The Interaction Of Meloidogyne-Incognita With 2 Cultivars Of Glycine-Max

    Authors

    M. C. Vanderspool; D. T. Kaplan; T. G. McCollum;R. J. Wodzinski

    Comments

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    Abbreviated Journal Title

    J. Nematol.

    Keywords

    ENZYME; GLYCINE MAX; HOST-PARASITE INTERACTION; MELOIDOGYNE INCOGNITA; NEMATODE; RESISTANCE; ROOT; SOYBEAN; SUPEROXIDE DISMUTASE; PLANTS; GLYCEOLLIN; RESISTANCE; NEMATODES; RADICALS; Zoology

    Abstract

    The closely related soybean (Glycine max) cultivars Centennial and Pickett 71 were confirmed to be resistant and susceptible, respectively, to the root-knot nematode Meloidogyne incognita. Increases in superoxide dismutase (SOD) activity were detected in roots of both soybean cultivars 48 hours following inoculation. Superoxide dismutase activity increased in roots of the susceptible cultivar overall, but declined after 96 hours in roots of the resistant cultivar. The isoelectric points of SOD isolated from preparasitic and parasitic developmental stages of the nematode appeared to differ. The SOD activity increased dramatically as nematodes matured and enlarged. Plant and nematode SOD were present as ca. 40-kDa cuprozinc dimers. Initial increases in SOD activity in infected tissue appeared to involve nematode regulation of plant gene expression. However, as the nematode enlarged, SOD activity could be detected within the female body only.

    Journal Title

    Journal of Nematology

    Volume

    26

    Issue/Number

    4

    Publication Date

    1-1-1995

    Document Type

    Article

    Language

    English

    First Page

    422

    Last Page

    429

    WOS Identifier

    WOS:A1994QA50700007

    ISSN

    0022-300X

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