Diversity of ectomycorrhizal fungal communities across six Picea species grown in common gardens.

IF 3.8 2区 生物学 Q2 MYCOLOGY
Tan Gao, Xuan Zhou, Mingxin Liu, Yumeng Xiao, Baiyu An, Wenjiao Wei, Zhiguang Zhao, Changming Zhao
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Abstract

Host plant identity is a primary determinant of ectomycorrhizal (ECM) fungal diversity and community composition, but the effect of host identity within congeneric species and whether this effect varies with environmental changes remain unclear. In this study, we used ITS rRNA amplicon sequencing to assess the diversity and community composition of ECM fungi in the roots of six phylogenetically distinct spruce (Picea) species grown in three common gardens with varying environmental conditions. Our results showed that, although ECM fungal richness and Shannon diversity were similar among spruce species at each site, their ECM fungal community composition differed. The differences in ECM fungal community composition between paired spruce species were not significant at the wettest site, but were significant at two dry sites, with the main difference observed between P. asperata and other spruce species (p < 0.05). The Mantel test indicated a weak positive correlation between ECM fungal community composition differences and the phylogenetic distance among host species. Preferred spruce/ECM fungal species varied across the three sites, with the lowest preference ratio observed at the wettest site. Additionally, Sebacina, Trichophaea, and Wilcoxina were the dominant genera in spruce roots. These results highlight the significant role of host identity within congeneric species in ECM fungal community assembly in relatively dry environment, enhancing our understanding of how congeneric plants influence ECM fungal diversity and community composition.

常见园林中6种云杉种外生菌根真菌群落的多样性
寄主植物身份是外生菌根(ECM)真菌多样性和群落组成的主要决定因素,但寄主身份对同属物种的影响以及这种影响是否随环境变化而变化尚不清楚。在这项研究中,我们利用ITS rRNA扩增子测序技术评估了生长在三个不同环境条件下的常见园林中6种系统发育不同的云杉(Picea)物种根系中ECM真菌的多样性和群落组成。结果表明,各样地云杉种间ECM真菌丰富度和Shannon多样性相似,但ECM真菌群落组成存在差异。配对云杉种间ECM真菌群落组成在最湿地差异不显著,但在两个干旱地差异显著,主要差异在曲霉种与其他云杉种之间(p
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来源期刊
Mycorrhiza
Mycorrhiza 生物-真菌学
CiteScore
8.20
自引率
2.60%
发文量
40
审稿时长
6-12 weeks
期刊介绍: Mycorrhiza is an international journal devoted to research into mycorrhizas - the widest symbioses in nature, involving plants and a range of soil fungi world-wide. The scope of Mycorrhiza covers all aspects of research into mycorrhizas, including molecular biology of the plants and fungi, fungal systematics, development and structure of mycorrhizas, and effects on plant physiology, productivity, reproduction and disease resistance. The scope also includes interactions between mycorrhizal fungi and other soil organisms and effects of mycorrhizas on plant biodiversity and ecosystem structure. Mycorrhiza contains original papers, short notes and review articles, along with commentaries and news items. It forms a platform for new concepts and discussions, and is a basis for a truly international forum of mycorrhizologists from all over the world.
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