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。
2
At present, the edible fungus amount is lower than developed country's level by far. The quantity required of market is big more and more. The expert thought that the market is promising.