2.4.3. Microscopy (light, scanning and transmission electron microscopy)
2.4.3.1. Light and transmission electron microscopy. Avocado tissue was
cut into 10-mm diameter discs approximately 2 mmthick. Discs were
transferred into fixative (2% freshly prepared formaldehyde, 2.5% glutaraldehyde
in 0.1 M phosphate buffer pH 7.2) and stored at 4 °C before