它在基部与植物维管系统联成一体，在本质上是由植物侧根原基衍生而来。
The tree-shaped structure of nodular vascular framework is connected with the vascular system of plant in the base, It was derived originally from the plant lateral root primordium.
生长素还能使植物形成维管系统，形成侧根，并产生乙烯。
Auxin also causes the plant to develop a vascular system, to form lateral roots, and to produce ethylene.
AM真菌是广泛存在于土壤生态系统中的一类有益微生物，能与90%以上的维管植物形成共生体。
AM fungi is a kind useful microorganism that distributes in the soil system extensively; it can form symbiosis with host plant above 90%.
应用推荐