Fungus Food: CRISPR turns a simple fungus into a meatlike protein with a smaller environmental footprint

    As the demand for sustainable food continues to increase, scientists are exploring alternatives to traditional animal proteins (which currently amount for nearly 14% of global greenhouse gas emissions). Mycoprotein, developed from fungi, has come to be a promising solution due to its meat-like texture and smaller environmental impact. One of the leading sources, Fusarium venenatum, is already approved for consumption in several countries. However, its thick cell walls make it difficult to digest in addition to it being costly to produce.

    To address these challenges, researchers at Jiangnan University in China used CRISPR gene-editing technology to improve both the nutritional value and efficiency of Fusarium venenatum. By taking away two specific genes related to chitin production and metabolism, they created a new strain titled FCPD. The thinner cell wall significantly improved digestibility, while metabolic changes allowed the fungus to produce protein much more efficiently. As a result, the modified strain used 44% less sugar and produced the same amount of protein 88% faster than the original version. There was also no foreign DNA introduced.

                                                                        Picture of Fusarium venenatum.

    Past improving efficiency, the environmental benefits of FCPD were dramatic. A full life-cycle analysis across six countries with different energy systems showed that FCPD consistently produces fewer greenhouse gas emissions than conventional mycoprotein, with reductions of about 60%. In comparison to animal protein, the results were even more striking: FCPD needed 70% less land and caused 78% less freshwater pollution than chicken production in China. This breakthrough highlights how gene-edited foods could play a major role in feeding an increasing global population while crucially reducing strain on the planet.

https://www.sciencedaily.com/releases/2025/11/251121082049.htm 

https://www.sciencedirect.com/topics/agricultural-and-biological-sciences/fusarium-venenatum 

GMO Crops Reduce Pesticide Use and Carbon Footprint

    Scientists have developed ways to make crops resistant to pests, reducing the need for the use of pesticides. By growing genetically modified crops, farmers were able to reduce their pesticide use by 776 million kilograms between 1996-2018. These crops that were used were insect resistant, which eliminated the need for insecticides, and herbicide tolerant, which allows for farmers to manage weeds more effectively. 

    There are many benefits to growing these genetically modified crops. By significantly reducing the amount of pesticides used on their crops, farmers are reducing their carbon footprints. Genetically modified crops require less tillage, which means that farmers would be using less fuel. Genetically modified crops also produce a higher yield than conventional crops, which not only reduces the cost of food for the consumer, but also lets farmers grow more with less land.