香菇菌丝不能在活的树木组织中生长。一般认为活树木的内树皮部(韧皮部、栓内层、皮层薄壁组织)、边材部的放射组织的薄壁细胞是活的,而导管(在针叶树中是管胞)和木纤维细胞,以及心材部是由死细胞构成的(图1、2)。因此,用鲜段木接种香菇菌种,在内树皮部和边材表层部的组织活力衰退前,香菇菌丝生长停滞。如果菇木存放地湿度过大,又不及时进行翻堆、移场等管理,往往还能从段木表面又出新芽。切开上述鲜段木观察 Mushroom mycelia can not grow in living tree tissue. It is generally believed that the inner bark of living trees (phloem, inner suppository, cortical parenchyma), radioluced parenchyma cells of sapwood are viable, while catheters (in vitro tracheids) and fibroblasts , And heartwood is composed of dead cells (Figure 1, 2). Therefore, with fresh section of wood inoculation Shiitake mushroom species, within the bark and sapwood surface tissue before the organizational vitality recession, mycelial growth retardation. If the storage of mushroom wood humidity is too large, not timely turning, transfer and other management, often from the surface of the section of the wood again sprouts. Cut open the fresh section of wood observation