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Composition of the arbuscular mycorrhizal fungal community and changes in diversity of the rhizosphere of Clematis fruticosa over three seasons across different elevations
European Journal of Soil Science ( IF 4.0 ) Pub Date : 2020-01-09 , DOI: 10.1111/ejss.12884 Min Liu 1, 2 , Yongjie Yue 1 , Zuhua Wang 2 , Long Li 2 , Guozhen Duan 1 , Shulan Bai 1 , Tao Li 3
European Journal of Soil Science ( IF 4.0 ) Pub Date : 2020-01-09 , DOI: 10.1111/ejss.12884 Min Liu 1, 2 , Yongjie Yue 1 , Zuhua Wang 2 , Long Li 2 , Guozhen Duan 1 , Shulan Bai 1 , Tao Li 3
Affiliation
Clematis fruticosa Turcz. is a dominant native shrub with the potential for spontaneous vegetation succession for restoration of the ecologically fragile and arid Daqing Mountains of Inner Mongolia, which represent an important ecological transition zone in northern China. However, knowledge regarding the interactions between native species and their root‐associated arbuscular mycorrhizal (AM) fungi across different seasons and elevation gradients remains obscure. High AM fungal spore density, root colonization and arbuscular richness suggested that C. fruticosa could establish intimate symbiotic associations with AM fungi. A total of 174 AM fungal virtual taxa were identified from rhizosphere soil samples, and Glomus was dominant. The most distinct AM fungal community composition and the greatest richness and diversity were observed in the spring and at the highest elevation. Seasons • elevation interactions significantly affected Simpson diversity but not AM fungal community composition, observed richness and Shannon index. Seasons had a significant direct on AM fungal observed richness and Shannon index, and elevation had a significant direct on AM fungal observed richness. Soil available phosphorus was the most important driving factor in AM fungal richness and diversity, followed by seasons and soil moisture content. These results provied new insights suggesting that there are active and diverse “functional ingredients”, for example root‐associated AM fungi during the growing season, particularly with an earlier onset in the spring. They are potentially major contributors to the re‐vegetation of degraded lands and the maintenance of soil structure in arid and semiarid ecosystems, which is attributable to seasonal variation in host physiology in stressful environments.
更新日期：2020-01-09
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