Scientists have, for the first time, genetically engineered lettuce and tobacco plants to grow the animal protein myoglobin. Plant-derived myoglobin could achieve protein yields per hectare that rival – or even exceed – those of animal agriculture, with lower water use and greenhouse gas emissions.

Scientists have, for the first time, genetically engineered lettuce and tobacco plants to grow the animal protein myoglobin. Plant-derived myoglobin could achieve protein yields per hectare that rival – or even exceed – those of animal agriculture, with lower water use and greenhouse gas emissions.