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Structural variability and niche differentiation of the rhizosphere and endosphere fungal microbiome of Casuarina equisetifolia at different ages

  • Environmental Microbiology - Research Paper
  • Published:
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Abstract

Background

Casuarina equisetifolia is one of the most important artificially planted protective forests along the coast in southern China for windbreaks, soil erosion, and sand dune stabilization. Self-renewing of C. equisetifolia is very limited, which might be caused by low soil nutrient levels and reduced microbial activity.

Methods

Use of high-throughput sequencing of the 18S rDNA to investigate the microbial communities from the rhizosphere and root endosphere of C. equisetifolia in young-aged, intermediate-aged, and mature-aged forests.

Results

Our results indicate that the diversity of rhizosphere fungal microbiomes in field-grown C. equisetifolia is much lower than that of the endosphere microbiomes. Bioinformatic analysis showed that rhizocompartments produce the strongest differentiation of rhizosphere and endosphere communities. Notably, the distribution of rhizosphere fungi communities was significantly influenced by the environmental factors, not by forest ages.

Conclusions

The presented study suggests that the rhizocompartments and environmental factors, rather than forest ages, determine the diversities of fungal community.

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Acknowledgments

We thank Dr. Xiang Jin from the College of Life Sciences, Hainan Normal University, for the kind advices on processing the data and manuscript writing.

Funding

This research was funded by the Hainan Provincial Natural Science Foundation of China (2018CXTD337).

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Author notes

  1. Rui Huang and Pan Chen contributed equally to this work.

Authors and Affiliations

  1. College of Life Sciences, Ministry of Education Key Laboratory for Ecology of Tropical Islands, Hainan Normal University, Haikou, 571158, Hainan, China

    Rui Huang, Pan Chen, Xuan Wang, Huimin Li, Linzhi Zuo, Yaqian Zhang & Lei Li

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  1. Rui Huang
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Correspondence to Lei Li.

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Huang, R., Chen, P., Wang, X. et al. Structural variability and niche differentiation of the rhizosphere and endosphere fungal microbiome of Casuarina equisetifolia at different ages. Braz J Microbiol 51, 1873–1884 (2020). https://doi.org/10.1007/s42770-020-00337-7

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