Fig. 7From: Usage of the cyto-genetics and cytology to identify the action mechanisms of two bio-fertilizers on Allium cepa meristematic cellsUltra-thin section in Allium cepa root tip meristems shows the effect of 3 h of direct treatment with 10.0% yeast extract on cell organelles: mitochondria (M), dilated mitochondria (dM), peroxisomes (P), and dilated endoplasmic reticulum (ER) in addition to vacuole (V) and many autophagic vacuoles (AV) with engulfed organellesBack to article page