Operational Support for the International Collection of VA Mycorrhizal Fungi

Vesicular-arbuscular（VA）菌根真菌在植物中普遍存在， 自然界和实验已经显示减少植物压力， 使养分在植物间转移， 稳定性、植物激素水平和植物吸收 土壤中的元素 由于这些特性， 世界各地对这些真菌的兴趣相当大， 科学界和可靠的需求增加 培养VA菌根真菌。 因为它们是 不能在培养物上维持的专性共生真菌 培养基，培养物不能从现有的微生物 收藏. 1985年10月，美国国家科学基金会向 食品和农业科学研究所建立文化 收集这些真菌。 该收集物目前包括56个种的548个分离物 VA菌根真菌6个属中，以VA菌根真菌最多。 前两 多年来，它的运作，300多个文化被送往92 研究人员 该项目为以下活动提供部分业务资金： 未来15个月的收藏

Vesicular-arbuscular (VA) mycorrhizal fungi are ubiquitous in nature and have been shown experimentally to reduce plant stress, to enable interplant transfer of nutrients, and to increase soil stability, plant phytohormone levels, and plant absorption of elements in soil. Because of these attributes, there has been considerable world-wide interest in these fungi among the scientific community and an increased demand for reliable cultures of VA mycorrhizal fungi has resulted. Since they are obligate symbiotic fungi which cannot be maintained on culture media, cultures can not be obtained from existing microbial collections. In October of 1985, NSF awarded a grant to the Institute of Food and Agriculture Sciences to establish a culture collection of these fungi. This collection presently consists of 548 isolates of 56 species among the six genera of VA mycorrhizal fungi. In the first two years of its operation, over 300 cultures were sent to 92 researchers. This project provides partial operational funding for the collection for the next 15 months.