Monoclonal Antibodies to the Esophageal Glands and Stylet Secretions of Heterodera glycines
AbstractThree monodonal antibodies (MAbs) that bound to secretory granules within the subventral esophageal glands of second-stage juveniles (J2) of the soybean cyst nematode (SCN), Heterodera glycines, were developed from intrasplenic immunizations of a mouse with homogenates of SCN J2. Two MAbs to the secretory granules within subventral glands and one MAb to granules within the dorsal esophageal gland of SCN J2 were developed by intrasplenic immunizations with J2 stylet secretions. Stylet secretions, produced in vitro by incubating SCN J2 in 5-methoxy DMT oxalate, were solubilized with a high pH buffer and concentrated for use as antigen. Three of the five MAbs specific to the subventral esophageal glands bound to stylet secretions from SCN J2 in immunofluorescence and ELISA assays. Two of these three MAbs also bound to secretory granules within both the dorsal and subventral esophageal glands of young SCN females. All five of the subventral gland MAbs bound to the subventral glands of Heterodera schachtii and one bound to the subventral glands of Globodera tabacum, but none bound to any structures in Meloidogyne incognita or Caenorhabditis elegans. Key words: Caenorhabditis elegans, esophageal gland, Heterodera glycines, Heterodera schachtii, immunoassay, Meloidogyne incognita, monoclonal antibody, nematode, plant parasite, soybean, stylet secretions.
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