Malajczuk N, Dell B, Bougher N L
Division of Forest Research, CSIRO, Private Bag, P.O. Wembley, Western Australia 6014.
School of Environmental and Life Sciences, Murdoch University, Murdoch, Western Australia 6155.
New Phytol. 1987 Mar;105(3):421-428. doi: 10.1111/j.1469-8137.1987.tb00879.x.
Cortinarius and Hysterangium species are a dominant component of the macrofungi in eucalypt forests of Western Australia, and their hyphae occupy 10 % of the soil surface area. Anatomical studies of jarrah (Eucalyptus marginata Donn ex Sm.) and karri (E. diversicolor F. Muell) roots collected in association with hyphae of Cortinarius globuliformis Boug., C. ochraceus Clel. and Hysterangium inflatum Rodway showed mycorrhizal structures with mantles one to five cells thick and Hartig nets penetrating to the hypodermis. These superficial ectomycorrhizas were similar in size to those of non-colonized feeder roots and lacked the expanded cortex and broad mantle of pyramidal ectomycorrhizas formed by Laccaria laccata (Scop, ex Fr.) Berk. & Br. Colonized host roots responded with polyphenol accumulation in the epidermis/hypodermis and lignification of the outer cortex for both the superficial and pyramidal types.
丝膜菌属和腹菌类物种是西澳大利亚桉树林大型真菌的主要组成部分，它们的菌丝占据了10%的土壤表面积。对与球形丝膜菌、赭色丝膜菌和膨胀腹菌的菌丝相关联采集的红柳桉（Eucalyptus marginata Donn ex Sm.）和卡里桉（E. diversicolor F. Muell）根系进行的解剖学研究表明，菌根结构具有1至5个细胞厚的菌套，哈蒂氏网深入到皮下组织。这些表面外生菌根的大小与未被侵染的吸收根相似，并且缺乏由紫蜡蘑形成的具有扩展皮层和宽阔菌套的锥形外生菌根。对于表面型和锥形型，被侵染的寄主根在表皮/皮下组织中积累多酚，并使外皮层木质化。
