In planta monitoring of the activity of two constitutive promoters, CaMV 35 S and TR2í, in developing feeding cells induced by Globodera rostochiensis using green fluorescent protein in combination with confocal laser scanning microscopy. - Goverse,A..; Biesheuvel,J..; Wijers,G..J..; Gommers,F..J..; Bakker,F..J..; Bakker,J..; Schots,A..; Helder,J.. (Physiological and Molecular Plant Pathology, 1998)