This invention relates to methods and materials for providing a benefit to a plant by associating the plant with a complex endophyte comprising a host fungus further comprising a component bacterium, including benefits to a plant derived from a seed or other plant element treated with a complex endophyte. For example, this invention provides purified complex endophytes, purified complex endophyte components such as bacteria or fungi, synthetic combinations comprising said complex endophytes and/or components, and methods of making and using the same.

A mycelium growth bed for optimal production of pure mycelium or a pure mycelium composite with controlled or predictable properties, the bed comprising a tray, a conveying platform, a permeable membrane, a substrate, and a porous material. The permeable membrane is positioned on the conveying platform within the tray. The substrate is positioned on the permeable membrane and the porous material is positioned on top of the substrate. The system provides a configuration wherein the CO.sub.2 concentration is held above 3%, the relative humidity is held above 40% and the O.sub.2 concentration is held below 20% in steady state conditions to produce leather-like mycelium without fruiting bodies.

A mycelium growth bed for optimal production of pure mycelium or a pure mycelium composite with controlled or predictable properties, the bed comprising a tray, a conveying platform, a permeable membrane, a substrate, and a porous material. The permeable membrane is positioned on the conveying platform within the tray. The substrate is positioned on the permeable membrane and the porous material is positioned on top of the substrate. The system provides a configuration wherein the CO.sub.2 concentration is held above 3%, the relative humidity is held above 40% and the O.sub.2 concentration is held below 20% in steady state conditions to produce leather-like mycelium without fruiting bodies.

An edible meat substitute product includes a fibrous mycelium mass in a range of 10 wt % to 100 wt %. The fibrous mycelium mass has a protein content greater than 40 wt % of a dry mass of the fibrous mycelium mass. The edible meat substitute product includes a water content in a range of 0 w % to 90 wt %.

An edible meat substitute product includes a fibrous mycelium mass in a range of 10 wt % to 100 wt %. The fibrous mycelium mass has a protein content greater than 40 wt % of a dry mass of the fibrous mycelium mass. The edible meat substitute product includes a water content in a range of 0 w % to 90 wt %.

Methods of propagating Arbuscular Mycorrhizal Fungi (AMF) are described that do not require the addition of, or presence of, any detectable live host plant material or live plant root material. The method comprises addition of water and optionally exposure to sunlight. It was surprisingly found that soil devoid of any detectable live host plant material, including host plant roots, is capable of supporting AMF reproduction, though it is widely believed that AMF are obligate symbionts requiring live plant roots for colonization to reproduce. Described methods optionally include active removal of living host plant material from the soil prior to AMF inoculation. Optionally, phosphorous compounds are added to the soil prior to inoculation. It was found that addition of phosphorous compounds, such as phosphite, to the soil enhances the growth of AMF spores by as much as three-fold over controls having no added phosphorous compounds.

Methods of propagating Arbuscular Mycorrhizal Fungi (AMF) are described that do not require the addition of, or presence of, any detectable live host plant material or live plant root material. The method comprises addition of water and optionally exposure to sunlight. It was surprisingly found that soil devoid of any detectable live host plant material, including host plant roots, is capable of supporting AMF reproduction, though it is widely believed that AMF are obligate symbionts requiring live plant roots for colonization to reproduce. Described methods optionally include active removal of living host plant material from the soil prior to AMF inoculation. Optionally, phosphorous compounds are added to the soil prior to inoculation. It was found that addition of phosphorous compounds, such as phosphite, to the soil enhances the growth of AMF spores by as much as three-fold over controls having no added phosphorous compounds.

A system for growing fungi, the system comprising a nutritive vehicle, a porous material, an administrable space, fungal tissue comprising fungal hyphae having a growth pattern, the fungal tissue connecting said nutritive vehicle to said porous material to said administrable space, wherein the fungal tissue within said space defines at least one successive fungal material layer; and a chemically or physically altered separated portion of fungal material, the separated portion separated from said fungal tissue.

A system for growing fungi, the system comprising a nutritive vehicle, a porous material, an administrable space, fungal tissue comprising fungal hyphae having a growth pattern, the fungal tissue connecting said nutritive vehicle to said porous material to said administrable space, wherein the fungal tissue within said space defines at least one successive fungal material layer; and a chemically or physically altered separated portion of fungal material, the separated portion separated from said fungal tissue.

An edible meat substitute product includes a fibrous mycelium mass in a range of 10 wt % to 100 wt %. The fibrous mycelium mass has a protein content greater than 40 wt % of a dry mass of the fibrous mycelium mass. The edible meat substitute product includes a water content in a range of 0 w % to 90 wt %.