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Mycorrhizal Fungi spore abundance in Old-Growth Forest Soil

Open Journal of Soil Science 2023年第12期13卷 534-546页

作者： Catherine MacKenzie Holland Jessique L. Haeft Department of Natural Resources & Environmental Managment Ball State University Muncie Indiana USA

Soil samples were collected from the base of Aplectrum hymale individuals to assess mycorrhizal spores abundance. The hypothesis that mycorrhizal spore abundance would increase with proximity to the plant was not supp... 详细信息

关键词： Mycorrhizal Fungi Glomus spore abundance Aplectrum hymale Orchid

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Source of mycorrhizal inoculum influences growth of Faidherbia albida seedlings

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Journal of Forestry Research 2020年第1期31卷 313-323页

作者： Emiru Birhane Mengsteab Hailemariam Girmay Gebresamuel Tesfay Araya Kiros Meles Hadgu Lindsey Norgrove Department of Land Resources Management and Environmental Protection Mekelle UniversityP.O.Box 231MekelleEthiopia Department of Dryland Crop and Horticultural Sciences Mekelle UniversityP.O.Box 231MekelleEthiopia Faculty of Environmental Sciences and Natural Resource Management Norwegian University of Life SciencesP.O.Box 50031432 AsNorway World Agroforestry Center ILRI CampusP.O.Box 5689Addis AbabaEthiopia School of Agricultural Forest and Food SciencesBern University of Applied SciencesLa¨nggasse 853052 ZollikofenSwitzerland Department of Agronomy University of Fort HarePBX1314Alice 5700South Africa

Poor land use management and practice inhibit the growth and establishment of tree seedlings in dryland *** assessed arbuscular mycorrhizal fungi(AM)status of Faidherbia albida(Del.)*** grown on different land *** quantified the growth and nutrient uptake of *** seedlings inoculated with AM from different *** efforts were based on soil and fine root samples from the rhizosphere soils of *** *** root colonization was determined using the gridline intersect *** were extracted by the wet sieving and decanting method and identified to genus *** seedling experiment had a completely randomized onefactorial design with four treatments and five *** albida seedlings were grown in a *** in situ *** trees were colonized by AM *** root colonization of *** trees was significantly higher(Pabundance was significantly higher(P<0.0014)in area exclosures followed by cultivated land and grazing *** was the dominant genus in all ***-inoculated *** seedlings grew better(P<0.05)than non-inoculated *** inoculated with AM from area exclosure had significantly(P<0.05)higher growth and nutrient uptake than those inoculated with AM from grazing and cultivated *** emphasizes the importance of the native soil AM potential for better establishment of seedlings to achieve optimum plant growth improvement and assist in rehabilitation of degraded arid lands.

关键词： spore abundance AM colonization Inoculum types Land-use types Nutrient uptake Growth parameters

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Effects of Soil Depth and Season Variation on Community Structure of Arbuscular Mycorrhizal Fungi in Greenhouse Soils Planted with Watermelon

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Pedosphere 2013年第3期23卷 350-358页

作者： LIU Run-Jin LI Yan DIAO Zhi-Kai LI Min LIN Xian-Gui Institute of Mycorrhizal Biotechnology Qingdao Agricultural University State Key Laboratory of Soil and Sustainable Agriculture Institute of Soil Science Chinese Academy of Sciences

The characteristics of arbuscular mycorrhizal fungal (AMF) community structure in various soil depths and growing seasons of watermelon (Citrullus vulgaris) grown in commercial greenhouses in Daxing of Beijing and Weifang and Laiyang of Shandong, China were investigated using both morphological identification and denaturing gradient gel electrophoresis. The sampled soils had been used for continuous greenhouse production of watermelon for 0, 5, 10, 15, or 20 years. Glomus claroideum was the dominant species in the greenhouse soils planted for 5, 10, and 15 years in Laiyang, while Glomus mosseae and Glomus etunicatum were dominant in the nearby open farmland soil. Sorenson's similarity index of AMF community composition ranged from 0.67 to 0.84 in the soils planted for 5 years, and from 0.29 to 0.33 for 20 years among the three locations. spore abundance, species richness, and the Shannon index were highest near the soil surface (0-10 cm) and decreased with soil depth, and higher in June and October than in August and December. Canonical correspondence analysis showed that available P and the number of years that soil had been used for greenhouse production were the main factors contributing to the variance of AMF community composition. It was concluded that the community structure of AMF was mainly influenced by soil available P and planting time of watermelon as well as by soil depth and seasonal variation in the commercial greenhouse.

关键词： canonical correspondence analysis Shannon index Sorenson's similarity index species richness spore abundance

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