Mycorrhizas are a symbiosis formed by soil-borne fungi and plant roots - together they work wonders in horticulture. The fungi enhance plant nutrient and water uptake from the soil, and even help plants adapt to different environmental stresses. In exchange, the plants supply mycorrhizal fungi with carbon fixed using energy from the sun. In recent years, numerous scientific studies have clearly highlighted the fundamental role that mycorrhizal fungi play in the growth and survival of the majority of plant species, whether they are in natural ecosystems or in those managed by man.