| Diversity and zonal distribution of arbuscular my-corrhizal fungi on the northern slopes of the Tianshan Mountains |
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| 作者单位： | SHI ZhaoYong（Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences,(U)rümqi 830011, China;College of Resources and Environmental Sciences, China Agricultural University, Beijing 100094, China） ;
CHEN ZhiChao（Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences,(U)rümqi 830011, China） ;
ZHANG LiYun（Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences,(U)rümqi 830011, China） ;
FENG Gu（College of Resources and Environmental Sciences, China Agricultural University, Beijing 100094, China） ;
CHRISTIE Peter（College of Resources and Environmental Sciences, China Agricultural University, Beijing 100094, China;Queen's University Belfast, Agricultural and Environmental Science Department, Newforge Lane, Belfast BT9 5PX, UK） ;
TIAN ChangYan（Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences,(U)rümqi 830011, China） ;
LI XiaoLin（College of Resources and Environmental Sciences, China Agricultural University, Beijing 100094, China） ; |
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| 摘 要： | The arbuscular mycorrhizal (AM) fungal status of the 20 most common plant species distributed in 4 vegetation types (meadow steppe, desert steppe, steppe desert and typical desert) on the northern slopes of the Tianshan Mountains was investigated. Samples of the plant species and their rhizosphere soils were collected from the 4 vegetation zones and examined to compare their mycorrhizal status, AM fungal spore densities, biovolumes, and community structures. 28 AM fungal species were isolated from the rhizosphere soils: of these, 5 belonged to Acaulospora, 1 to Archaeospora and 22 to Glomus. 5 AM fungi, Glomus aggregatum, G. claroideum, G. deserticola, G. etunicatum and G. sinuosum, were observed in all 4 zonal types. No significant differences were observed in mean proportion of root length colonized by AM fungi among the plant species within each zonal type. Comparing the 4 zonal types, Plantago minuta (84.5%) in steppe desert and Eremopyrum orientale (83.1%) in typical desert showed the highest root colonizatsion rates. AM fungal spore densities and biovolumes were significantly different in the different zonal types. AM fungal spore densities and biovolumes, species richness and diversity were highest in meadow steppe and lowest in typical desert.
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Diversity and zonal distribution of arbuscular mycorrhizal fungi on the northern slopes of the Tianshan Mountains |
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| Authors: | SHI ZhaoYong CHEN ZhiChao ZHANG LiYun FENG Gu CHRISTIE Peter TIAN ChangYan LI XiaoLin |
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| Abstract: | The arbuscular mycorrhizal (AM) fungal status of the 20 most common plant species distributed in 4 vegetation types (meadow steppe, desert steppe, steppe desert and typical desert) on the northern slopes of the Tianshan Mountains was investigated. Samples of the plant species and their rhizosphere soils were collected from the 4 vegetation zones and examined to compare their mycorrhizal status, AM fungal spore densities, biovolumes, and community structures. 28 AM fungal species were isolated from the rhizosphere soils: of these, 5 belonged to Acaulospora, 1 to Archaeospora and 22 to Glomus. 5 AM fungi, Glomus aggregatum, G. claroideum, G. deserticola, G. etunicatum and G. sinuosum, were observed in all 4 zonal types. No significant differences were observed in mean proportion of root length colonized by AM fungi among the plant species within each zonal type. Comparing the 4 zonal types, Plantago minuta (84.5%) in steppe desert and Eremopyrum orientale (83.1%) in typical desert showed the highest root colonizatsion rates. AM fungal spore densities and biovolumes were significantly different in the different zonal types. AM fungal spore densities and biovolumes, species richness and diversity were highest in meadow steppe and lowest in typical desert. |
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| Keywords: | northern slopes Tianshan Mountains arbuscular mycorrhizal fungi spore densities diversity zonal distribution |
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