“Starved border cells plated on to nutrient agar demonstrated no sign of contamination after 48 h incubation.”

“These are made by applying to the face a soft material such as wax, plaster, or, in modern times, agar, a vegetable gelatine.”

“A fluorescence image of 12 tobacco plantlets growing on agar within a covered Perspex Petri dish.”

“The material of choice is agarose, a carbohydrate polymer purified from a salt water algae.”

“For all 43 species, amplified fragments were purified from agarose gels and ligated in the TOPO TA cloning vector.”

“Before sequencing, the amplified regions were purified from the agarose gel using a GeneClean kit.”