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Morel Production Related to Soil Microbial Diversity and Evenness

文献类型： 外文期刊

作者： Tan, Hao 1 ; Liu, Tianhai 1 ; Yu, Yang 1 ; Tang, Jie 1 ; Jiang, Lin 1 ; Martin, Francis M. 4 ; Peng, Weihong 1 ;

作者机构： 1.Sichuan Acad Agr Sci, Inst Agr Resources & Environm, Chengdu, Peoples R China

2.Jiangnan Univ, Sch Bioengn, Wuxi, Jiangsu, Peoples R China

3.Minist Agr & Rural Affairs, Sci Observat & Expt Stn Agromicrobial Resource &, Chengdu, Peoples R China

4.Univ Lorraine, Ctr INRA GrandEst Lorraine, Inst Natl Rech Agron, UMR Interact Arbres Microorganismes, Champenoux, France

5.Beijing Forestry Univ, Beijing Adv Innovat Ctr Tree Breeding Mol Design, Beijing, Peoples R China

关键词： large-scale farming; fructification; soil microbial diversity; community evenness; predominant fungi

期刊名称：MICROBIOLOGY SPECTRUM （ 影响因子：9.043； 五年影响因子：8.113 ）

ISSN： 2165-0497

年卷期： 2021 年 9 卷 2 期

页码：

收录情况： SCI

摘要： Black morel is a widely prized ascomycetous mushroom with culinary value. It was once uncultivable but can now be cultivated routinely in ordinary farmland soils. Large-scale morel farming sometimes encounters nonfructification for unknown reasons. In spring 2020, many morel farms in the area of Chengdu-Plain, China, exhibited no fructification at all, causing disastrous economic loss to the farmers. To determine potential ecological factors associated with the different performance of morel production in these farms, 21 affected sites versus 11 sites with normal fructification performance were analyzed to compare soil microbiota and physiochemical characteristics during fructification. The results indicated that soil physiochemical characteristics were unlikely to be a major reason for the difference between successful fructification and nonfructification. The soils with successful fructification had significantly higher diversity in both the fungal and bacterial communities than those with nonfructification. Morel yield was positively correlated with the alpha-diversity of fungal communities. The higher diversity of the successfully fructified soils was contributed by community evenness rather than taxonomic richness. In contrast, most nonfructification soils were dominated by a high proportion of a certain fungal genus, typically Acremonium or Mortierella, in the fungal communities. Our findings demonstrate the importance of microbial ecology to the large-wcale agroindustry of soil-cultivated mushrooms. IMPORTANCE Saprotrophic mushrooms cultivated in soils are subject to complex influences from soil microbial communities. Research on growing edible mushrooms has revealed connections between fungi and a few species of growth-promoting bacteria colonizing the mycosphere. The composition and diversity of the whole microbial community may also have an influence on the growth and production of soil-saprotrophic mushrooms. Morel mushrooms (Morchella spp.) are economically and culturally important and are widely prized throughout the world. This study used the large-scale farming of morels as an example of an agroecosystem for soil-saprotrophic mushroom cultivation. It demonstrated a typical pattern of how the microbial ecology in soil agroecosystems, especially the alpha-diversity level and community evenness among soil fungal taxa, could affect the production of high-value cash crops and the income of farmers.

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