Diversity Of Ericoid Mycorrhiza And The Related Fungi Isolated From Hair Roots Of Rhododendron Dauricum

Ericaceae root system of most plants in natural habitats in the formation is a special type of ERM morphology (Ericoid mycorthizas, ERM). ERM for improving plant nutrient uptake,it can enhance resistance to heavy metal ions and ease the stress and other environmental factors have an important role. ERM fungi have inoculated Ericaceae plants to some significant role in promoting growth. In order to explore and utilize the potential of mycorrhizal fungi, ecological construction and horticultural production to meet the needs of scholars of international horticultural research conducted on the ERM, in particular the issue of widespread is concerned in recent years. Rhododendron plants in China are widely distributed, but little research on the ERM space, yet to see the relevant official reports. Rhododendron dauricum is the Daxinganling region the dominant species in the genus Rhododendron, widely distributed in the Daxinganling region, often associated with larch, Scotch Pine and other trees are form a stable community. To address the domestication Larix Rhododendron poor growth appear and many other issues, with guidance and reference value. The main conclusions obtained are as follows:By Nicon microscope, stained blue tablet extraction of hair roots of Rhododendron Larix microstructure and mycorrhizal infection of the situation. The results showed that: Rhododendron by Larix 3 months comparing the situation of mycorrhizal disseminated, disseminated higher rates in August, June and September low. Average of 12.21±4.12 (%), the overall infection rate was low.The colonies of fungi isolated Andean blueberry seedlings inoculated to Benedict, the extraction blue dye tablet test for hair roots with the ERM mycelium, ERM fungi as a preliminary to determine the standard. The results showed that: back then the 28 types, 13 types could infect the formation of mycorrhizal cranberry Benedict Adams, 15 did not observe the type ERM structure. Initially identified 13 strains that ERM fungi.Isolated from the root of Larix Rhododendron type ERM identified 13 types, 13 species of fungi by Kam, including ascomycetes Amon (Ascomycotina) 11, accounting for 84.62%, Basidiomycotina (Basidiomycotina) 1, accounting for 7.69% , 1 species is not identified, accounting for 7.69%.