Fungal Strains

Fungal strains isolated from weathered sandstone included oxalic, fumaric and succinic acid forming strains of Penicillium and Fusarium, with oxalic acid forming of Penicillium corylophilum only when grown in the presence of the Monoraphidium braunii alga.

Trichoderma genus fungal strains include a wide range of evolutionary solutions ranging from highly effective soil colonizers with high potential for biodegradation to non-strict rhizosphere-colonizing plant symbionts. Within this conglomerate some groups of biotypes are able to antagonize phytopathogenic fungi by using colonization of substrates, antibiosis and/or mycoparasitism as the main mechanisms.

All the fungal strains studied to date are capable of using a wide variety of soluble sugars as sources of energy. The pattern of sugar use varies by species and strains, except for arabinose, fucose, mannose, and galactose. There is no question that hypovirulence and the related traits of strain XG36-1 and other strains are caused by mycoviruses or other mobile components.

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