The positive test M. incognita proteins (involved in secretion in planta) were collected from different sources: From the M. incognita website (http://www.inra.fr/meloidogyne_incognita/) with the following accession numbers: Minc00169a Minc09298a Minc09446a Minc03287 From NCBI (http://www.ncbi.nlm.nih.gov/) with the following protein accession numbers: AAK21882.1 AAR37374.1 AAD45868.1 AAM28240.1|