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采用组织化学技术研究了水分胁迫条件下丛枝菌根真菌中碱性磷酸酶活性对宿主沙棘抗旱性的影响。结果表明，菌根内总菌丝量＞功能菌丝量＞活性菌丝量，总菌丝和功能菌丝是活性菌丝的基础，对宿主生物量积累起重要作用的是活性菌丝；具有磷酸酶活性的菌丝对沙棘生长和抗旱作用最强，随着碱性磷酸酶活性的提高，宿主林木鲜重增加，萎蔫系数降低。活性菌丝通过直接参与宿主林木磷素营养物质的交换，改善林木养分和水分状况，提高林木抗旱性。
The effects of alkaline phosphatase activity on drought resistance of seabuckthorn seedlings under arbuscular mycorrhizal fungi under water stress were studied using histochemical techniques. The results showed that the total amount of mycorrhizal fungi mycelium> functional mycelium> the amount of active mycelium, total mycelium and functional mycelium is the basis of activated mycelium, the host biomass accumulation plays an important role in the active mycelium; with The mycelium with phosphatase activity had the strongest growth and drought resistance to seabuckthorn. With the increase of alkaline phosphatase activity, the fresh weight of host forest increased, and the wilting coefficient decreased. Active mycelium through the direct involvement of host phosphorus exchange of forest phosphorus to improve nutrient and water status of trees to improve drought resistance of trees.