Higher temperatures and more intense storms are also linked to "valley fever", a disease contracted from a fungus in the soil of the central valley of California.
The Arbuscular fungus had formed the symbiont with the ancient land lower plants before the appearance of the higher plant.
菌根真菌早在高等植物出现以前，就已经同古老的陆生低等植物形成了共生体。
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These results indicate that the higher moisture level (85%), probably increased substrate availability to the fungus but reduced the porosity of the medium and hence the heat and mass transfer.