Mycorrhizal fungi are beneficial organisms that form symbiotic relationships with plants, providing them with essential nutrients and increased water absorption. When used indoors, mycorrhizal fungi can help improve soil quality and the overall health of a plant. They act as natural fertilizers by increasing the availability of phosphorus, nitrogen, potassium, calcium, zinc and other minerals to plants. Mycorrhizal fungi produce enzymes which break down organic matter into more easily absorbed forms for plants to use as food. This helps reduce the need for chemical fertilizer applications in indoor cultivation environments. Mycorrhizal fungi also provide an additional layer of protection against diseases like root rot since they create an environment where pathogenic microorganisms cannot survive. These organisms help increase root growth and vigor in indoor gardens by facilitating better nutrient uptake from soils or potting mixes.