Impact of Aspect on Arbuscular Mycorrhizal Fungal Diversity and Community Composition in a Natural Toona ciliata var. pubescens Forest in Subtropical China

被引:3
|
作者
Wang, Qiong [1 ,2 ]
Pan, Jianfeng [1 ,2 ,3 ]
Ke, Yunfang [1 ,2 ]
Yu, Suqin [1 ,2 ]
Murray, Philip J. J. [4 ]
Luo, Tianyu [1 ,2 ]
Zhang, Lu [1 ,2 ]
Liu, Wei [1 ,2 ]
机构
[1] Jiangxi Agr Univ, Jiangxi Prov Key Lab Silviculture, Nanchang 330045, Peoples R China
[2] Jiangxi Agr Univ, Coll Forestry, Nanchang 330045, Peoples R China
[3] Nat Protected Area Construct Ctr Jiangxi, Nanchang 330036, Peoples R China
[4] Royal Agr Univ, Sch Agr Food & Environm, Cirencester GL7 6JS, England
来源
FORESTS | 2022年 / 13卷 / 12期
基金
中国国家自然科学基金;
关键词
Toona ciliata var; pubescens; arbuscular mycorrhizal fungi; aspect; soil properties; SOIL PROPERTIES; SLOPE ASPECT; RECRUITMENT LIMITATION; VEGETATION; NITROGEN; LANDSCAPE; SEED; BIODIVERSITY; VARIABILITY; POPULATIONS;
D O I
10.3390/f13122100
中图分类号
S7 [林业];
学科分类号
0829 ; 0907 ;
摘要
The aspect can affect plant communities and soil physical and chemical properties through different microclimates. However, little is known about the effect of aspect on arbuscular mycorrhizal (AM) fungal diversity and community composition, although AM fungi are beneficial for plant nutrient absorption and natural restoration. In this study, AM fungal community and diversity distribution patterns in the rhizosphere soil and roots of seven widespread plants in a natural Toona ciliata var. pubescens (Tc) forest on the north-facing (NF) aspect and south-facing (SF) aspect were investigated using Illumina PE250 high-throughput sequencing in the Guanshan National Nature Reserve, Jiangxi Province, China. Our results exhibited that aspect did not affect AM fungal diversity but significantly affected AM fungal community structure and composition. Glomeraceae was the most common and abundant family in the Tc natural forest. The Glomeromycota sequence proportion of root AM fungal community was significantly larger on NF than on SF (p < 0.05). The relative abundance of Acaulosporaceae of root AM fungal community differed significantly with aspect, being greater on NF than on SF (p < 0.05). In addition, the number of Glomeromycota sequences was significantly larger on SF than on NF, while the number of OTUs and the relative abundance of unclassified fungi in rhizosphere soil in Tc showed the opposite trend (p < 0.05). The soil properties (organic matter, nitrogen, potassium, phosphorus, and pH) were significantly correlated with these changes. These findings indicate that the habitat of NF with low insolation, high soil moisture, and high nutrient content might promote the functional realization of AM fungi; the habitat of SF with high insolation, low soil moisture, and low soil nutrient content might be beneficial for the proliferation and preservation of AM fungal groups. This study provides important information on the ecological processes of AM fungal community construction and microbiological mechanisms in natural Tc forests.
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页数:19
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