Figure 7
From: Nostoc sp. extract induces oxidative stress-mediated root cell destruction in Mimosa pigra L.
TEM micrographs of M . pigra root tips treated with an extract from Nostoc sp. for 72 h. (a) control (magnification = 2,500x) (b) treated root (2,500x) showing some substances stored vacuoles and the dissolution of the middle lamella (white arrow) (c) treated root (8,000x) showing the dissolution of the middle lamella (white arrow) (d) mitochondria of the control (20,000x) (e) swollen mitochondria in treated root (20,000x) showing indistinct cristae (white arrows) (f , g) normal nucleus of control and treated root (5,000x).