Michigan winter wheat (Triticum aestivum L.) roots host communities of Mortierellaceae and endohyphal bacteria

IF 1.9 3区环境科学与生态学 Q3 ECOLOGY Fungal Ecology Pub Date : 2024-11-30 DOI:10.1016/j.funeco.2024.101398

Megan Korne , Janette L. Jacobs , Sophie Gabrysiak , Martin I. Chilvers , Gregory Bonito

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Abstract

Mortierellaceae are ecologically and economically important fungi implicated in soil health. However, the diversity and frequency of Mortierellaceae and their endobacteria in crop root systems is unclear. Roots of winter wheat were sampled using a randomized complete block design. Mortierellaceae were isolated, identified using ITS-LSU phylogenetic analysis, and 16S rDNA was screened for Burkholderia-related endobacteria (BRE) and Mollicutes-related endobacteria (MRE). A total of 102 root-associated Mortierellaceae were isolated from 217 wheat root samples. Linnemannia comprised 89% of isolates. BRE were detected in 12 isolates, while MRE were detected in only one isolate. Mortierellaceae frequency varied by cultivar and a weak trend towards cultivar specificity was observed. Together, these findings advance our understanding of BRE and MRE prevalence in fungi in agricultural soils. Further studies will be needed to determine how plant hosts recruit Mortierellaceae partners and factors that drive plant-Mortierellaceae interactions.

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密歇根冬小麦（Triticum aestivum L.）根寄主群落Mortierellaceae和菌丝内细菌

Mortierellaceae是与土壤健康有关的重要生态和经济真菌。然而，Mortierellaceae及其内细菌在作物根系中的多样性和频率尚不清楚。采用完全随机区组设计对冬小麦根系进行取样。分离得到Mortierellaceae，利用ITS-LSU系统发育分析对其进行鉴定，并对Burkholderia-related endobacteria （BRE）和Mollicutes-related endobacteria （MRE）进行16S rDNA筛选。从217份小麦根系样品中共分离到102个根相关Mortierellaceae。林奈曼菌占分离株的89%。12株分离物检出BRE， 1株分离物检出MRE。mortiellaceae的出现频率因品种而异，品种专一性倾向较弱。总之，这些发现促进了我们对农业土壤真菌中BRE和MRE患病率的理解。需要进一步的研究来确定植物寄主如何招募Mortierellaceae的伴侣以及驱动植物-Mortierellaceae相互作用的因素。

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来源期刊

Fungal Ecology 环境科学-生态学

CiteScore

5.80

自引率

3.40%

发文量

审稿时长

3 months

期刊介绍： Fungal Ecology publishes investigations into all aspects of fungal ecology, including the following (not exclusive): population dynamics; adaptation; evolution; role in ecosystem functioning, nutrient cycling, decomposition, carbon allocation; ecophysiology; intra- and inter-specific mycelial interactions, fungus-plant (pathogens, mycorrhizas, lichens, endophytes), fungus-invertebrate and fungus-microbe interaction; genomics and (evolutionary) genetics; conservation and biodiversity; remote sensing; bioremediation and biodegradation; quantitative and computational aspects - modelling, indicators, complexity, informatics. The usual prerequisites for publication will be originality, clarity, and significance as relevant to a better understanding of the ecology of fungi.