上海典型城市生态廊道的土壤真菌多样性  

Soil Fungal Diversity in the Typical Urban Ecological Corridors in Shanghai

作　　者：韩继刚 骆玉珍 张维维 HAN Jigang;LUO Yuzhen;ZHANG Weiwei(Shanghai Academy of Landscape Architecture Science and Planning,Shanghai,China,200232;School of Resources and Materials,Northeastern University at Qinhuangdao,Qinhuangdao,Hebei,China,066004;Shanghai Wildlife and Protected Natural Areas Research Center,Shanghai,China,202162)

机构地区：[1]上海市园林科学规划研究院,上海200232 [2]东北大学秦皇岛分校资源与材料学院,秦皇岛066004 [3]上海市野生动植物和自然保护地研究中心,上海202162

出　　处：《园林》2024年第4期34-41,共8页Landscape Architecture Academic Journal

基　　金：上海市绿化和市容管理局项目“城市绿化土壤生物活性评价方法的建立和应用”(编号:G200201)。

摘　　要：公园绿地和道路绿地是城市生态廊道的典型形式。选择上海公园绿地和道路绿地作为研究对象,采用高通量测序技术分析其真菌多样性特征。结果表明,上海典型城市生态廊道土壤中共有9大类群真菌,其中Ascomycota(子囊菌门)、Basidiomycota(担子菌门)和Zygomycota(结合菌门)是上海典型城市生态廊道土壤中的优势真菌,其相对丰度分别达到59.5%、14.9%和14.2%。上海典型城市生态廊道土壤中的植物病原真菌共有91个属,144个种水平类群;土传病原真菌有48个属,35个种水平类群,Fusarium是属水平上丰度最高的病原真菌,Fusarium solani相近类群是种水平上丰度最高的病原真菌。公园和道路绿地土壤真菌群落以及病原真菌群落间存在显著性差异。Mortierella、Talaromyces、Guehomyces、Trichobotrys、Metarhizium、Mycoarachis、Cystofilobasidium、Penicillium、Gibberella、Curvularia等菌群在公园绿地和道路绿地中存在显著差异。pH、EC、全钾、有效钾、交换性钠、全铅和全铜是影响土传植物病原真菌群落组成的主要因子。Park green spaces and road green spaces are typical forms of urban ecological corridors.Park green spaces and road green spaces in Shanghai were selected as research objects.High-throughput sequencing technology was used to analyze soil fungal diversity characteristics.The results showed that there were nine major fungal groups in the soil of typical urban ecological corridors in Shanghai,among which Ascomycota,Basidiomycota,and Zygomycota were the dominant fungi in the soil of typical urban ecological corridors in Shanghai,with relative abundances of 59.5%,14.9%,and 14.2%,respectively.There were 91 genera and 144 species or groups at the species level of plant pathogenic fungi in the soil of typical urban ecological corridors in Shanghai.There were 48 genera and 35 species or groups at the species level of soil-borne pathogenic fungi,with Fusarium being the most abundant pathogenic fungi at the genus level and Fusarium solani being the most abundant pathogenic fungi at the species level or closely related groups at the species level,respectively.There were signifi cant differences in soil fungal communities and pathogenic fungal communities between park and road green spaces.There were substantial differences in the microbial communities of Mortierella,Talaromyces,Guehomyces,Trichobotrys,Metrohizium,Mycoarachis,Cytofi lobasidium,Penicillium,Gibberella,and Curvularia between park and road green spaces.Soil pH,EC,total potassium,available potassium,exchangeable sodium,total lead,and total copper were the main factors affecting the composition of soil-borne plant pathogenic fungal communities.

关 键 词：城市廊道 公园绿地 道路绿地 真菌 多样性 

分 类 号：TU986[建筑科学—城市规划与设计]