Author: A.E. ISMAIL, W.M.A. EL-NAGDI AND M.Y. YASSIN
Publishing Date: 2004
Volume 22 Issue 2
Histopathological responses in Meloidogyne incognita and Rotylenchulus reniformis infected roots of chamomile (Matricaria chamomilla L) were studied. M. incognita larvae entered into roots by a puncturing action of the stylet and inter and intracellular penetration and reached the stele region where cells were damaged. Hypertrophy and hyperplasia of the surrounding cells lead to the formation of galls on the roots. Reproduction of M. incognita was shown where egg-masses and eggs in gelatinous matrix were observed in infected roots. Nematode cause severe damage to the vascular tissues by xylem disruption. Histological alternations induced by R. reniformis revealed that the hypertrophied cells and / or syncytia were commonly associated with nematode infection.