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采色豆马勃(Pisolithustinctorius)是一种外生菌根真菌,能生存在树苗的根上,是松苗的一种有前途的外生菌根共生物。具有这种真菌的树苗能在恶劣的土壤条件下生长,而且比在良好生长条件下具有其他真菌外生菌根的树苗生长得快。1973年美国把在亚拉巴马、佐治亚和宾夕法尼亚松树下采集的采色豆马勃担孢子接种体和从佐治亚培养的营养接种体人工引入佐治亚、佛罗里达和北卡罗来纳州的三个苗圃的土壤中。经过一个生长季节后,在北卡罗来纳州的苗圃里,由营养接种体形成的采色豆马勃外生菌根使火炬松苗的生长增长了140%,而弗吉尼
Pisolithustinctorius is an ectomycorrhizal fungus that can survive on the roots of saplings and is a promising ectomycorrhizal symbiont of pine seedlings. Saplings with this fungus can grow under harsh soil conditions and grow faster than saplings with other fungal ectomycorrhizae in good growth conditions. In 1973, the United States artificially introduced the Sporidium argentea sporocepsulum collected under the pine trees of Alabama, Georgia and Pennsylvania and the vegetative inoculated from Georgia into the soils of three nurseries in Georgia, Florida and North Carolina. After a growing season, the growth of Pinus thunbergorum seedlings grew by 140% in the nursery of North Carolina at the time of harvest,