【摘要】：叢枝菌根(arbuscular mycorrhizal,AM)真菌是生態(tài)系統中重要的土壤微生物之一。AM真菌菌絲體網絡是由AM真菌菌絲體在土壤生態(tài)系統中連接兩株或兩株以上植物根系所形成的菌絲體網絡。隨著菌根學研究的深入,如何直觀的揭示AM真菌的生態(tài)學功能已經成為相關領域關注的熱點問題。研究發(fā)現,利用同位素示蹤技術可以開展AM真菌與宿主植物對土壤礦質營養(yǎng)的吸收、轉運等方面的研究,以及菌絲體網絡對不同宿主植物之間營養(yǎng)物質的分配研究和AM真菌在生態(tài)系統生態(tài)學中的功能研究�；诖�,為了闡明同位素示蹤技術在AM真菌研究中的價值,圍繞菌根學最新研究進展,系統回顧了利用同位素示蹤技術探究AM共生體對不同元素吸收和轉運的機制、同位素示蹤技術在AM真菌菌絲體網絡研究中的價值和利用同位素示蹤技術研究AM真菌在生態(tài)系統中的功能,為AM真菌生態(tài)學功能的研究提供理論基礎,并對本領域未來的研究方向和應用前景進行展望。
[Abstract]:Arbuscular mycorrhizal (arbuscular mycorrhizal,AM) fungi are one of the most important soil microbes in the ecosystem. The AM fungal mycelium network is a mycelial network formed by the AM fungal mycelium connecting two or more plant roots in the soil ecosystem. With the development of mycorrhizal research, how to reveal the ecological function of AM fungi has become a hot issue in related fields. It was found that isotopic tracer technique could be used to study the uptake and transport of mineral nutrients in soil by AM fungi and host plants. The distribution of nutrients between different host plants and the function of AM fungi in ecosystem ecology were also studied by mycelium network. In order to elucidate the value of isotopic tracer technique in the study of AM fungi, the mechanism of absorption and transport of different elements by AM symbionts was systematically reviewed. The value of isotopic tracer technique in the study of mycelial network of AM fungi and the function of AM fungi in ecosystem by using isotope tracer technique provide a theoretical basis for the study of the ecological function of AM fungi. The future research direction and application prospect of this field are prospected.
【作者單位】： 蘭州大學草地農業(yè)生態(tài)系統國家重點實驗室草地農業(yè)科技學院;上海自然博物館自然史研究中心上海科技館;
【基金】：國家自然科學基金項目(31270558) 上�？萍拣^引進高層次人才科研啟動經費資助
【分類號】：S154.3

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