Mycorrhizal Fungal Diversity and Its Relationship with Soil Properties in Camellia oleifera

Rui-Cheng Liu, Zhi-Yan Xiao, Abeer Hashem, Elsayed Fathi Abd_Allah and Qiang-Sheng Wu
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Rui-Cheng Liu: College of Horticulture and Gardening, Yangtze University, Jingzhou 434025, China
Zhi-Yan Xiao: Wuhan Forestry Workstation, Wuhan 430023, China
Abeer Hashem: Botany and Microbiology Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
Elsayed Fathi Abd_Allah: Plant Production Department, Faculty of Food and Agricultural Sciences, King Saud University, Riyadh 11451, Saudi Arabia
Qiang-Sheng Wu: College of Horticulture and Gardening, Yangtze University, Jingzhou 434025, China

Agriculture, 2021, vol. 11, issue 6, 1-10

Abstract: Arbuscular mycorrhizal fungi (AMF) are well known for their important physiological implications on diversified host plants, while the information on AMF diversity and its relationship with soil properties of Camellia oleifera is yet not fully understood. In the proposed study, high-throughput sequencing of small subunit ribosomal RNA was performed to analyze the AMF diversity of the rhizosphere and endosphere of 20-year-old C. oleifera Xianglin in the field at Wuhan (China) and their relationship with soil physico-chemical properties. As high as 30.73–41.68% of the roots of C. oleifera were colonized by indigenous AMF with a spore density of 66–111 spores/10 g soil. The surface soil (0–20 cm) showed significantly higher root fungal colonization, spore density, soil hyphal length, and easily extractable glomalin-related soil protein content than the sub-surface soil (20–40 cm). Soil pH value, available K, and NO 3 − -N content affected the root and soil mycorrhizal development, whilst soil pH proved to be the most influential soil property governing their variability. A total of 467 OTUs associated with AMF were detected from the endosphere and rhizosphere, representing 10 genera and 138 species, of which 295 OTUs and 9 genera were jointly observed. The genus Glomus displayed maximum relative abundance (>86%) in both endosphere and rhizosphere. Scutellospora was detected in the endosphere, but absent in the rhizosphere. The endosphere recorded a relatively higher number of OTUs and alpha diversity indices (Shannon, Simpson, and PD index) of AMF than rhizosphere. Our study, hence, revealed that C. oleifera in fields was mainly colonized by Glomus , coupled with comparatively greater AMF diversity in the endosphere than in the rhizosphere, governed predominantly by soil pH, NO 3 − -N content, and available K content.

Keywords: Glomus; high-throughput sequencing; mycorrhiza; OTU; oil plant (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2021
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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