English to Serbian Medical Medical: Pharmaceuticals regulation of protein expression

Anthers were removed from the tassel spikelet using dissecting forceps and immediately fixed in 3.7% formaldehyde in phosphate buffered saline (PBS) under gentle vacuum. After washing in PBS, tissues were placed in embedding medium and frozen immediately. Frozen tissue blocks were stored at -80°C until sectioned in -20°C microtome and collected on charged slides.