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Meng Q, Xie Z, Xu H, Guo J, Peng Q, Li Y, Yang J, Dong D, Gao T, Zhang F. Genome assembly of M. spongiola and comparative genomics of the genus Morchella provide initial insights into taxonomy and adaptive evolution. BMC Genomics 2024; 25:518. [PMID: 38802743 PMCID: PMC11129363 DOI: 10.1186/s12864-024-10418-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Accepted: 05/15/2024] [Indexed: 05/29/2024] Open
Abstract
Morchella spongiola is a highly prized mushroom for its delicious flavor and medical value and is one of the most flourishing, representative, and dominant macrofungi in the Qilian Mountains of the Qinghai-Tibet Plateau subkingdoms (QTPs). However, the understanding of M. spongiola remains largely unknown, and its taxonomy is ambiguous. In this study, we redescribed a unique species of M. spongiola, i.e., micromorphology, molecular data, genomics, and comparative genomics, and the historical biogeography of M. spongiola were estimated for 182 single-copy homologous genes. A high-quality chromosome-level reference genome of M. spongiola M12-10 was obtained by combining PacBio HiFi data and Illumina sequencing technologies; it was approximately 57.1 Mb (contig N50 of 18.14 Mb) and contained 9775 protein-coding genes. Comparative genome analysis revealed considerable conservation and unique characteristics between M. spongiola M12-10 and 32 other Morchella species. Molecular phylogenetic analysis indicated that M. spongiola M12-10 is similar to the M. prava/Mes-7 present in sandy soil near rivers, differentiating from black morels ~ 43.06 Mya (million years ago), and diverged from M. parva/Mes-7 at approximately 12.85 Mya (in the Miocene epoch), which is closely related to the geological activities in the QTPs (in the Neogene). Therefore, M. spongiola is a unique species rather than a synonym of M. vulgaris/Mes-5, which has a distinctive grey-brown sponge-like ascomata. This genome of M. spongiola M12-10 is the first published genome sequence of the species in the genus Morchella from the QTPs, which could aid future studies on functional gene identification, germplasm resource management, and molecular breeding efforts, as well as evolutionary studies on the Morchella taxon in the QTPs.
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Affiliation(s)
- Qing Meng
- Qinghai University, 251 Ningda Road, Xining, Qinghai, 810016, China
| | - Zhanling Xie
- Qinghai University, 251 Ningda Road, Xining, Qinghai, 810016, China.
| | - Hongyan Xu
- Qinghai University, 251 Ningda Road, Xining, Qinghai, 810016, China
| | - Jing Guo
- Qinghai University of Technology, 15 Twenty-fourth Road, Xining, Qinghai, 810016, China
| | - Qingqing Peng
- Qinghai University, 251 Ningda Road, Xining, Qinghai, 810016, China
| | - Yanyan Li
- Qinghai University, 251 Ningda Road, Xining, Qinghai, 810016, China
| | - Jiabao Yang
- Qinghai University, 251 Ningda Road, Xining, Qinghai, 810016, China
| | - Deyu Dong
- Qinghai University, 251 Ningda Road, Xining, Qinghai, 810016, China
| | - Taizhen Gao
- State-owned forest farms of Tianjun County, Delingha, Qinghai, 817299, China
| | - Fan Zhang
- Forestry and grassland station of Tianjun County, Delingha, Qinghai, 817299, China
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Liu T, Cheng R, Hua Z, Gao H, Wang C, Li H, Yuan Y. Identification of Growth-Promoting Bacterial Resources by Investigating the Microbial Community Composition of Polyporus umbellatus Sclerotia. J Fungi (Basel) 2024; 10:386. [PMID: 38921372 PMCID: PMC11205113 DOI: 10.3390/jof10060386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2024] [Revised: 05/16/2024] [Accepted: 05/23/2024] [Indexed: 06/27/2024] Open
Abstract
The sclerotium of the edible mushroom Polyporus umbellatus (Zhuling) exhibits various medicinal properties. However, given its long growth cycle and overexploitation, wild resources are facing depletion. Macrofungal growth depends on diverse microbial communities; however, the impact of soil bacteria on P. umbellatus development is unknown. Here, we combined high-throughput sequencing and pure culturing to characterize the diversity and potential function of bacteria and fungi inhabiting the P. umbellatus sclerotium and tested the bioactivities of their isolates. Fungal operational taxonomic units (OTUs) were clustered and classified, revealing 1275 genera. Bacterial OTUs yielded 891 genera. Additionally, 81 bacterial and 15 fungal strains were isolated from P. umbellatus sclerotia. Antagonism assays revealed three bacterial strains (FN2, FL19, and CL15) promoting mycelial growth by producing indole-3-acetic acid, solubilizing phosphate, and producing siderophores, suggesting their role in regulating growth, development, and production of active compounds in P. umbellatus. FN2-CL15 combined with bacterial liquid promoted growth and increased the polysaccharide content of P. umbellatus mycelia. This study reports new bioactive microbial resources for fertilizers or pesticides to enhance the growth and polysaccharide accumulation of P. umbellatus mycelia and offers guidance for exploring the correlation between medicinal macrofungi and associated microbial communities.
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Affiliation(s)
- Tianrui Liu
- Institute of Traditional Chinese Medicine Health Industry, China Academy of Chinese Medical Sciences, Nanchang 330115, China; (T.L.); (H.G.); (C.W.); (H.L.)
- Jiangxi Health Industry Institute of Traditional Chinese Medicine, Nanchang 330115, China
| | - Rui Cheng
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, National Resource Center for Chinese Meteria Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China; (R.C.); (Z.H.)
| | - Zhongyi Hua
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, National Resource Center for Chinese Meteria Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China; (R.C.); (Z.H.)
| | - Haiyun Gao
- Institute of Traditional Chinese Medicine Health Industry, China Academy of Chinese Medical Sciences, Nanchang 330115, China; (T.L.); (H.G.); (C.W.); (H.L.)
- Jiangxi Health Industry Institute of Traditional Chinese Medicine, Nanchang 330115, China
| | - Chu Wang
- Institute of Traditional Chinese Medicine Health Industry, China Academy of Chinese Medical Sciences, Nanchang 330115, China; (T.L.); (H.G.); (C.W.); (H.L.)
- Jiangxi Health Industry Institute of Traditional Chinese Medicine, Nanchang 330115, China
| | - Hui Li
- Institute of Traditional Chinese Medicine Health Industry, China Academy of Chinese Medical Sciences, Nanchang 330115, China; (T.L.); (H.G.); (C.W.); (H.L.)
- Jiangxi Health Industry Institute of Traditional Chinese Medicine, Nanchang 330115, China
| | - Yuan Yuan
- Institute of Traditional Chinese Medicine Health Industry, China Academy of Chinese Medical Sciences, Nanchang 330115, China; (T.L.); (H.G.); (C.W.); (H.L.)
- Jiangxi Health Industry Institute of Traditional Chinese Medicine, Nanchang 330115, China
- Experimental Research Center, China Academy of Chinese Medical Sciences, Beijing 100700, China
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Yue Y, Hao H, Wang Q, Xiao T, Zhang Y, Chen Q, Chen H, Zhang J. Dynamics of the soil microbial community associated with Morchella cultivation: diversity, assembly mechanism and yield prediction. Front Microbiol 2024; 15:1345231. [PMID: 38426066 PMCID: PMC10903539 DOI: 10.3389/fmicb.2024.1345231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 01/29/2024] [Indexed: 03/02/2024] Open
Abstract
Introduction The artificial cultivation of morels has been a global research focus owing to production variability. Understanding the microbial ecology in cultivated soil is essential to increase morel yield and alleviate pathogen harm. Methods A total of nine Morchella cultivation experiments in four soil field types, forest, paddy, greenhouse, and orchard in Shanghai city were performed to determine the potential ecological relationship between Morchella growth and soil microbial ecology. Results Generally, significant variation was observed in the soil microbial diversity and composition between the different experimental field types. The niche width analysis indicated that the bacterial habitat niche breadth was significantly greater than the fungal community width, which was further confirmed by a null model that revealed that homogeneous selection could explain 46.26 and 53.64% of the variance in the bacterial and fungal assemblies, respectively. Moreover, the neutral community model revealed that stochastic processes dominate the bacterial community in forests and paddies and both the bacterial and fungal communities in orchard crops, whereas deterministic processes mostly govern the fungal community in forests and paddies and both the bacterial and the fungal communities in greenhouses. Furthermore, co-occurrence patterns were constructed, and the results demonstrated that the dynamics of the soil microbial community are related to fluctuations in soil physicochemical characteristics, especially soil potassium. Importantly, structural equation modeling further demonstrated that the experimental soil type significantly affects the potassium content of the soil, which can directly or indirectly promote Morchella yield by inhibiting soil fungal richness. Discussion This was the first study to predict morel yield through soil potassium fertilizer and soil fungal community richness, which provides new insights into deciphering the importance of microbial ecology in morel agroecosystems.
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Affiliation(s)
- Yihong Yue
- National Research Center for Edible Fungi Biotechnology and Engineering, Key Laboratory of Applied Mycological Resources and Utilization, Ministry of Agriculture, Shanghai Key Laboratory of Agricultural Genetics and Breeding, Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, Shanghai, China
| | - Haibo Hao
- National Research Center for Edible Fungi Biotechnology and Engineering, Key Laboratory of Applied Mycological Resources and Utilization, Ministry of Agriculture, Shanghai Key Laboratory of Agricultural Genetics and Breeding, Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, Shanghai, China
- State Key Laboratory of Genetic Engineering and Fudan Center for Genetic Diversity and Designing Agriculture, Institute of Plant Biology, School of Life Sciences, Fudan University, Shanghai, China
| | - Qian Wang
- National Research Center for Edible Fungi Biotechnology and Engineering, Key Laboratory of Applied Mycological Resources and Utilization, Ministry of Agriculture, Shanghai Key Laboratory of Agricultural Genetics and Breeding, Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, Shanghai, China
| | - Tingting Xiao
- National Research Center for Edible Fungi Biotechnology and Engineering, Key Laboratory of Applied Mycological Resources and Utilization, Ministry of Agriculture, Shanghai Key Laboratory of Agricultural Genetics and Breeding, Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, Shanghai, China
| | - Yuchen Zhang
- National Research Center for Edible Fungi Biotechnology and Engineering, Key Laboratory of Applied Mycological Resources and Utilization, Ministry of Agriculture, Shanghai Key Laboratory of Agricultural Genetics and Breeding, Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, Shanghai, China
| | - Qun Chen
- School of Biology Food and Environment, Hefei University, Hefei, China
| | - Hui Chen
- National Research Center for Edible Fungi Biotechnology and Engineering, Key Laboratory of Applied Mycological Resources and Utilization, Ministry of Agriculture, Shanghai Key Laboratory of Agricultural Genetics and Breeding, Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, Shanghai, China
| | - Jinjing Zhang
- National Research Center for Edible Fungi Biotechnology and Engineering, Key Laboratory of Applied Mycological Resources and Utilization, Ministry of Agriculture, Shanghai Key Laboratory of Agricultural Genetics and Breeding, Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, Shanghai, China
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Zheng H, Chen T, Li W, Hong J, Xu J, Yu Z. Endosymbiotic bacteria within the nematode-trapping fungus Arthrobotrys musiformis and their potential roles in nitrogen cycling. Front Microbiol 2024; 15:1349447. [PMID: 38348183 PMCID: PMC10860758 DOI: 10.3389/fmicb.2024.1349447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Accepted: 01/10/2024] [Indexed: 02/15/2024] Open
Abstract
Endosymbiotic bacteria (ESB) have important effects on their hosts, contributing to its growth, reproduction and biological functions. Although the effects of exogenous bacteria on the trap formation of nematode-trapping fungi (NTF) have been revealed, the effects of ESB on NTF remain unknown. In this study, we investigated the species diversity of ESB in the NTF Arthrobotrys musiformis using high-throughput sequencing and culture-dependent approaches, and compared bacterial profiles to assess the effects of strain source and culture media on A. musiformis. PICRUSt2 and FAPROTAX were used to predict bacterial function. Our study revealed that bacterial communities in A. musiformis displayed high diversity and heterogeneity, with Proteobacteria, Firmicutes, Bacteroidetes and Actinobacteria as the dominant phyla. The ESB between A. musiformis groups isolated from different habitats and cultured in the same medium were more similar to each other than the other groups isolated from the same habitat but cultured in different media. Function analysis predicted a broad and diverse functional repertoire of ESB in A. musiformis, and unveiled that ESB have the potential to function in five modules of the nitrogen metabolism. We isolated nitrogen-fixing and denitrifying bacteria from the ESB and demonstrated their effects on trap formation of A. musiformis. Among seven bacteria that we tested, three bacterial species Bacillus licheniformis, Achromobacter xylosoxidans and Stenotrophomonas maltophilia were found to be efficient in inducing trap formation. In conclusion, this study revealed extensive ESB diversity within NTF and demonstrated that these bacteria likely play important roles in nitrogen cycling, including nematode trap formation.
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Affiliation(s)
- Hua Zheng
- Laboratory for Conservation and Utilization of Bio-Resources, Yunnan University, Kunming, China
- School of Life Sciences, Yunnan University, Kunming, China
| | - Tong Chen
- Laboratory for Conservation and Utilization of Bio-Resources, Yunnan University, Kunming, China
- School of Life Sciences, Yunnan University, Kunming, China
| | - Wenjie Li
- Laboratory for Conservation and Utilization of Bio-Resources, Yunnan University, Kunming, China
- School of Life Sciences, Yunnan University, Kunming, China
| | - Jianan Hong
- Laboratory for Conservation and Utilization of Bio-Resources, Yunnan University, Kunming, China
- School of Life Sciences, Yunnan University, Kunming, China
| | - Jianping Xu
- Department of Biology, McMaster University, Hamilton, ON, Canada
| | - Zefen Yu
- Laboratory for Conservation and Utilization of Bio-Resources, Yunnan University, Kunming, China
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Qiu Z, Ren S, Zhao J, Cui L, Li H, Jiang B, Zhang M, Shu L, Li T. Comparative analysis of the nutritional and biological properties between the pileus and stipe of Morchella sextelata. Front Nutr 2024; 10:1326461. [PMID: 38249598 PMCID: PMC10796790 DOI: 10.3389/fnut.2023.1326461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Accepted: 12/19/2023] [Indexed: 01/23/2024] Open
Abstract
Morchella sextelata is a highly prized edible mushroom and is widely consumed for its distinctive taste and texture. The stipe of M. sextelata is significantly lower in priced compared to the pileus. The aim of this study was to conduct a comprehensive comparative analysis of the nutritional and biological properties between the pileus and stipe of M. sextelata. The results revealed that the stipe exhibited comparable levels of various nutrients and bioactive compounds to those found in the pileus. The stipe showed significantly higher levels of crude dietary fiber, various mineral elements, vitamins, amino acids, 5'-nucleotides, fatty acids, and specific sugars. Additionally, it also demonstrated significant abundance in bioactive compounds such as total flavonoids and ergothioneine. Overall, our study provides valuable insights into unlocking further knowledge about M. sextelata's nutritional composition while highlighting its potential health benefits associated with different parts of this highly esteemed edible mushroom.
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Affiliation(s)
- Zhiheng Qiu
- Modern Protected Horticulture Engineering and Technology Center, College of Horticulture, Shenyang Agricultural University, Shenyang, China
- Key Laboratory of Protected Horticulture of Education Ministry and Liaoning Province, Shenyang, China
| | - Shuhua Ren
- Modern Protected Horticulture Engineering and Technology Center, College of Horticulture, Shenyang Agricultural University, Shenyang, China
- Key Laboratory of Protected Horticulture of Education Ministry and Liaoning Province, Shenyang, China
| | - Jiazhi Zhao
- Modern Protected Horticulture Engineering and Technology Center, College of Horticulture, Shenyang Agricultural University, Shenyang, China
- Key Laboratory of Protected Horticulture of Education Ministry and Liaoning Province, Shenyang, China
| | - Lingxiu Cui
- Modern Protected Horticulture Engineering and Technology Center, College of Horticulture, Shenyang Agricultural University, Shenyang, China
- Key Laboratory of Protected Horticulture of Education Ministry and Liaoning Province, Shenyang, China
| | - Hongpeng Li
- Modern Protected Horticulture Engineering and Technology Center, College of Horticulture, Shenyang Agricultural University, Shenyang, China
- Key Laboratory of Protected Horticulture of Education Ministry and Liaoning Province, Shenyang, China
| | - Bei Jiang
- Modern Protected Horticulture Engineering and Technology Center, College of Horticulture, Shenyang Agricultural University, Shenyang, China
- Key Laboratory of Protected Horticulture of Education Ministry and Liaoning Province, Shenyang, China
| | - Miao Zhang
- Modern Protected Horticulture Engineering and Technology Center, College of Horticulture, Shenyang Agricultural University, Shenyang, China
- Key Laboratory of Protected Horticulture of Education Ministry and Liaoning Province, Shenyang, China
| | - Lili Shu
- Modern Protected Horticulture Engineering and Technology Center, College of Horticulture, Shenyang Agricultural University, Shenyang, China
- Key Laboratory of Protected Horticulture of Education Ministry and Liaoning Province, Shenyang, China
| | - Tianlai Li
- Modern Protected Horticulture Engineering and Technology Center, College of Horticulture, Shenyang Agricultural University, Shenyang, China
- Key Laboratory of Protected Horticulture of Education Ministry and Liaoning Province, Shenyang, China
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Longley R, Benucci GMN, Pochon X, Bonito G, Bonito V. Species-specific coral microbiome assemblages support host bleaching resistance during an extreme marine heatwave. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 906:167803. [PMID: 37838063 DOI: 10.1016/j.scitotenv.2023.167803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 09/30/2023] [Accepted: 10/11/2023] [Indexed: 10/16/2023]
Abstract
Scleractinian assemblages are threatened by marine heat waves with coral survivorship depending on host genetics and microbiome composition. We documented an extreme marine heat wave in Fiji and the response of corals in two thermally stressed reef flats. Through high-throughput amplicon sequencing of 16S and ITS rDNA phylogenetic markers, we assessed coral microbiomes (Symbiodiniaceae, prokaryotes, fungi, and Apicomplexa) of paired bleached and unbleached colonies of four common coral species representative of dominant genera in the South Pacific. While all coral species exhibited one or more pathways to bleaching resistance, harboring assemblages composed primarily of thermally tolerant photosymbionts did not always result in host bleaching resistance. Montipora and Pocillopora species, which associate with diverse Symbiodiniaceae and vertically transmit their photosymbionts, fared better than Acropora, which acquire their photosymbionts from the environment, and Porites, which associate with a narrow photosymbiont assemblage. Prokaryotic and fungal beta diversity did not differ between bleached and unbleached conspecifics, however, the relative abundance of the fungus Malassezia globosa was significantly greater in unbleached colonies of Montipora digitata. Each coral species harbored distinct assemblages of Symbiodiniaceae, prokaryotes, and Apicomplexa, but not fungi, reiterating the importance of host genetics in structuring components of its microbiome. Terrestrial fungal and prokaryotic taxa were detected at low abundance across coral microbiomes, indicating that allochthonous microbial inputs occur, but that coral microbiomes remain dominated by marine microbial taxa. Our study offers valuable insights into the microbiome assemblages associated with coral tolerance to extreme water temperatures.
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Affiliation(s)
- Reid Longley
- Department of Microbiology and Molecular Genetics, Michigan State University, East Lansing, 48824, MI, USA
| | | | - Xavier Pochon
- Cawthron Institute, 98 Halifax Street East, Nelson 7010, New Zealand; Institute of Marine Science, University of Auckland, Auckland, New Zealand
| | - Gregory Bonito
- Department of Microbiology and Molecular Genetics, Michigan State University, East Lansing, 48824, MI, USA; Plant, Soil and Microbial Science Department, Michigan State University, East Lansing, 48824, MI, USA; Coral Coast Conservation Center, Votua Village, Fiji.
| | - Victor Bonito
- Coral Coast Conservation Center, Votua Village, Fiji; Reef Explorer Fiji, Votua Village, Fiji
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Cailleau G, Hanson BT, Cravero M, Zhioua S, Hilpish P, Ruiz C, Robinson AJ, Kelliher JM, Morales D, Gallegos-Graves LV, Bonito G, Chain PS, Bindschedler S, Junier P. Associated bacterial communities, confrontation studies, and comparative genomics reveal important interactions between Morchella with Pseudomonas spp. FRONTIERS IN FUNGAL BIOLOGY 2023; 4:1285531. [PMID: 38155707 PMCID: PMC10753826 DOI: 10.3389/ffunb.2023.1285531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Accepted: 11/08/2023] [Indexed: 12/30/2023]
Abstract
Members of the fungal genus Morchella are widely known for their important ecological roles and significant economic value. In this study, we used amplicon and genome sequencing to characterize bacterial communities associated with sexual fruiting bodies from wild specimens, as well as vegetative mycelium and sclerotia obtained from Morchella isolates grown in vitro. These investigations included diverse representatives from both Elata and Esculenta Morchella clades. Unique bacterial community compositions were observed across the various structures examined, both within and across individual Morchella isolates or specimens. However, specific bacterial taxa were frequently detected in association with certain structures, providing support for an associated core bacterial community. Bacteria from the genus Pseudomonas and Ralstonia constituted the core bacterial associates of Morchella mycelia and sclerotia, while other genera (e.g., Pedobacter spp., Deviosa spp., and Bradyrhizobium spp.) constituted the core bacterial community of fruiting bodies. Furthermore, the importance of Pseudomonas as a key member of the bacteriome was supported by the isolation of several Pseudomonas strains from mycelia during in vitro cultivation. Four of the six mycelial-derived Pseudomonas isolates shared 16S rDNA sequence identity with amplicon sequences recovered directly from the examined fungal structures. Distinct interaction phenotypes (antagonistic or neutral) were observed in confrontation assays between these bacteria and various Morchella isolates. Genome sequences obtained from these Pseudomonas isolates revealed intriguing differences in gene content and annotated functions, specifically with respect to toxin-antitoxin systems, cell adhesion, chitinases, and insecticidal toxins. These genetic differences correlated with the interaction phenotypes. This study provides evidence that Pseudomonas spp. are frequently associated with Morchella and these associations may greatly impact fungal physiology.
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Affiliation(s)
- Guillaume Cailleau
- Laboratory of Microbiology, University of Neuchâtel, Neuchâtel, Switzerland
| | - Buck T. Hanson
- Bioscience Division, Los Alamos National Laboratory, Los Alamos, NM, United States
| | - Melissa Cravero
- Laboratory of Microbiology, University of Neuchâtel, Neuchâtel, Switzerland
| | - Sami Zhioua
- Laboratory of Microbiology, University of Neuchâtel, Neuchâtel, Switzerland
| | - Patrick Hilpish
- Laboratory of Microbiology, University of Neuchâtel, Neuchâtel, Switzerland
| | - Celia Ruiz
- Laboratory of Microbiology, University of Neuchâtel, Neuchâtel, Switzerland
| | - Aaron J. Robinson
- Bioscience Division, Los Alamos National Laboratory, Los Alamos, NM, United States
| | - Julia M. Kelliher
- Bioscience Division, Los Alamos National Laboratory, Los Alamos, NM, United States
| | - Demosthenes Morales
- Center for Integrated Nanotechnologies, Los Alamos National Laboratory, Los Alamos, NM, United States
| | | | - Gregory Bonito
- Department of Plant, Soil and Microbial Sciences, Michigan State University, East Lansing, MI, United States
| | - Patrick S.G. Chain
- Bioscience Division, Los Alamos National Laboratory, Los Alamos, NM, United States
| | | | - Pilar Junier
- Laboratory of Microbiology, University of Neuchâtel, Neuchâtel, Switzerland
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Embacher J, Zeilinger S, Kirchmair M, Neuhauser S. Prokaryote communities associated with different types of tissue formed and substrates inhabited by Serpula lacrymans. ENVIRONMENTAL MICROBIOLOGY REPORTS 2023; 15:642-655. [PMID: 37789578 PMCID: PMC10667670 DOI: 10.1111/1758-2229.13191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Accepted: 07/07/2023] [Indexed: 10/05/2023]
Abstract
The basidiomycete Serpula lacrymans is responsible for major timber devastation in houses. Basidiomycetes are known to harbour a diverse but poorly understood microbial community of bacteria, archaea, yeasts and filamentous fungi. In this study, we used amplicon-sequencing to analyse the abundance and composition of prokaryotic communities associated with fruiting bodies of S. lacrymans and compared them to communities of surrounding material to access the 'background' community structure. Our findings indicate that bacterial genera cluster depended on sample type and that the main driver for microbial diversity is specimen, followed by sample origin. The most abundant bacterial phylum identified in the fruiting bodies was Pseudomonadota, followed by Actinomycetota and Bacteroidota. The prokaryote community of the mycelium was dominated by Actinomycetota, Halobacterota and Pseudomonadota. Actinomycetota was the most abundant phylum in both environment samples (infested timber and underground scree), followed by Bacillota in wood and Pseudomonadota in underground samples. Nocardioides, Pseudomonas, Pseudonochardia, Streptomyces and Rubrobacter spp. were among others found to comprise the core microbiome of S. lacrymans basidiocarps. This research contributes to the understanding of the holobiont S. lacrymans and gives hints to potential bacterial phyla important for its development and lifestyle.
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Affiliation(s)
- Julia Embacher
- Institute of Microbiology, Universität InnsbruckInnsbruckAustria
| | | | - Martin Kirchmair
- Institute of Microbiology, Universität InnsbruckInnsbruckAustria
| | - Sigrid Neuhauser
- Institute of Microbiology, Universität InnsbruckInnsbruckAustria
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Zhang Y, Zhao Q, Uroz S, Gao T, Li J, He F, Rosazlina R, Martin F, Xu L. The cultivation regimes of Morchella sextelata trigger shifts in the community assemblage and ecological traits of soil bacteria. Front Microbiol 2023; 14:1257905. [PMID: 37808313 PMCID: PMC10552182 DOI: 10.3389/fmicb.2023.1257905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Accepted: 09/05/2023] [Indexed: 10/10/2023] Open
Abstract
The successful large-scale cultivation of morel mushrooms (Morchella sextelata) requires a comprehensive understanding of the soil bacterial communities associated with morel-farming beds, as the interactions between fungi and bacteria play a crucial role in shaping the soil microbiome. In this study, we investigated the temporal distribution and ecological characteristics of soil bacteria associated with morel fruiting bodies at different stages, specifically the conidial and primordial stages, under two cropping regimes, non-continuous cropping (NCC) and continuous cropping (CC). Our findings revealed a significant reduction in the yield of morel primordia during the third year following 2 years of CC (0.29 ± 0.25 primordia/grid), in comparison to the NCC regime (12.39 ± 6.09 primordia/grid). Furthermore, inoculation with morel mycelia had a notable impact on soil bacterial diversity, decreasing it in the NCC regime and increasing the number of generalist bacterial members in the CC regime. The latter regime also led to the accumulation of nutrients in the soil beds, resulting in a shift from a stochastic to a deterministic process in the composition of the bacterial community, which differed from the NCC regime. Additionally, mycelial inoculation had a positive effect on the abundance of potential copiotrophic/denitrifying and N-fixing bacteria while decreasing the abundance of oligotrophic/nitrifying bacteria. Interestingly, this effect was more pronounced in the NCC regime than in the CC regime. These results suggest that the increase in potential copiotrophic/denitrifying and N-fixing bacteria facilitated the decomposition of nutrients in exogenous nutrient bags by morel mushrooms, thereby maintaining nitrogen balance in the soil. Overall, our study provides valuable insights into the interactions between morel mycelia and the associated soil bacteriome as well as the influence of different cultivation regimes on these interactions. These findings contribute to our understanding of the complex dynamics of the soil microbiome and can inform strategies for optimizing morel mushroom cultivation.
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Affiliation(s)
- Yan Zhang
- School of Biological Sciences, Universiti Sains Malaysia, Penang, Malaysia
- Xi'an Key Laboratory of Plant Stress Physiology and Ecological Restoration Technology, Key Laboratory of Natural Product Development and Anticancer Innovative Drug Research in Qinling, School of Biological and Environmental Engineering, Xi'an University, Xi'an, Shaanxi, China
| | - Qi Zhao
- Key Laboratory for Plant Diversity and Biogeography of East Asia, Yunnan Key Laboratory of Fungal Diversity and Green Development, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
| | - Stéphane Uroz
- Université de Lorraine, INRAE, UMR Interactions Arbres/Microorganismes, Centre INRAE Grand Est-Nancy, Champenoux, France
| | - Tianpeng Gao
- Xi'an Key Laboratory of Plant Stress Physiology and Ecological Restoration Technology, Key Laboratory of Natural Product Development and Anticancer Innovative Drug Research in Qinling, School of Biological and Environmental Engineering, Xi'an University, Xi'an, Shaanxi, China
- The Engineering Research Center of Mining Pollution Treatment and Ecological Restoration of Gansu Province, Lanzhou City University, Lanzhou, China
| | - Jing Li
- Xi'an Key Laboratory of Plant Stress Physiology and Ecological Restoration Technology, Key Laboratory of Natural Product Development and Anticancer Innovative Drug Research in Qinling, School of Biological and Environmental Engineering, Xi'an University, Xi'an, Shaanxi, China
| | - Fengqin He
- Xi'an Key Laboratory of Plant Stress Physiology and Ecological Restoration Technology, Key Laboratory of Natural Product Development and Anticancer Innovative Drug Research in Qinling, School of Biological and Environmental Engineering, Xi'an University, Xi'an, Shaanxi, China
| | - Rusly Rosazlina
- School of Biological Sciences, Universiti Sains Malaysia, Penang, Malaysia
| | - Francis Martin
- Université de Lorraine, INRAE, UMR Interactions Arbres/Microorganismes, Centre INRAE Grand Est-Nancy, Champenoux, France
| | - Lingling Xu
- Xi'an Key Laboratory of Plant Stress Physiology and Ecological Restoration Technology, Key Laboratory of Natural Product Development and Anticancer Innovative Drug Research in Qinling, School of Biological and Environmental Engineering, Xi'an University, Xi'an, Shaanxi, China
- Université de Lorraine, INRAE, UMR Interactions Arbres/Microorganismes, Centre INRAE Grand Est-Nancy, Champenoux, France
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10
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Liu QZ, Dong CH. Science and technology breakthroughs to advance artificial cultivation of true morels. Front Microbiol 2023; 14:1259144. [PMID: 37670991 PMCID: PMC10475527 DOI: 10.3389/fmicb.2023.1259144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Accepted: 08/01/2023] [Indexed: 09/07/2023] Open
Affiliation(s)
| | - Cai Hong Dong
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
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11
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Liu W, He P, Shi X, Zhang Y, Perez-Moreno J, Yu F. Large-Scale Field Cultivation of Morchella and Relevance of Basic Knowledge for Its Steady Production. J Fungi (Basel) 2023; 9:855. [PMID: 37623626 PMCID: PMC10455658 DOI: 10.3390/jof9080855] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Revised: 08/10/2023] [Accepted: 08/14/2023] [Indexed: 08/26/2023] Open
Abstract
Morels are one of the most highly prized edible and medicinal mushrooms worldwide. Therefore, historically, there has been a large international interest in their cultivation. Numerous ecological, physiological, genetic, taxonomic, and mycochemical studies have been previously developed. At the beginning of this century, China finally achieved artificial cultivation and started a high-scale commercial development in 2012. Due to its international interest, its cultivation scale and area expanded rapidly in this country. However, along with the massive industrial scale, a number of challenges, including the maintenance of steady economic profits, arise. In order to contribute to the solution of these challenges, formal research studying selection, species recognition, strain aging, mating type structure, life cycle, nutrient metabolism, growth and development, and multi-omics has recently been boosted. This paper focuses on discussing current morel cultivation technologies, the industrial status of cultivation in China, and the relevance of basic biological research, including, e.g., the study of strain characteristics, species breeding, mating type structure, and microbial interactions. The main challenges related to the morel cultivation industry on a large scale are also analyzed. It is expected that this review will promote a steady global development of the morel industry based on permanent and robust basic scientific knowledge.
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Affiliation(s)
- Wei Liu
- The Germplasm Bank of Wild Species, Yunnan Key Laboratory for Fungal Diversity and Green Development, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China; (W.L.); (X.S.)
| | - Peixin He
- College of Food and Biological Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, China;
| | - Xiaofei Shi
- The Germplasm Bank of Wild Species, Yunnan Key Laboratory for Fungal Diversity and Green Development, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China; (W.L.); (X.S.)
| | - Ya Zhang
- Sichuan Junyinong Agricultural Technology Co., Ltd., Chengdu 610023, China;
| | - Jesus Perez-Moreno
- Edafologia, Campus Montecillo, Colegio de Postgraduados, Texcoco 56230, Mexico
| | - Fuqiang Yu
- The Germplasm Bank of Wild Species, Yunnan Key Laboratory for Fungal Diversity and Green Development, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China; (W.L.); (X.S.)
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12
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Chen B, Shao G, Zhou T, Fan Q, Yang N, Cui M, Zhang J, Wu X, Zhang B, Zhang R. Dazomet changes microbial communities and improves morel mushroom yield under continuous cropping. Front Microbiol 2023; 14:1200226. [PMID: 37614603 PMCID: PMC10442562 DOI: 10.3389/fmicb.2023.1200226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 07/26/2023] [Indexed: 08/25/2023] Open
Abstract
Morels (Morchella spp.) are highly prized and popular edible mushrooms. The outdoor cultivation of morels in China first developed at the beginning of the 21st century. Several species, such as Morchella sextelata, M. eximia, and M. importuna, have been commercially cultivated in greenhouses. However, the detriments and obstacles associated with continuous cropping have become increasingly serious, reducing yields and even leading to a complete lack of fructification. It has been reported that the obstacles encountered with continuous morel cropping may be related to changes in the soil microbial community. To study the effect of dazomet treatment on the cultivation of morel under continuous cropping, soil was fumigated with dazomet before morel sowing. Alpha diversity and beta diversity analysis results showed that dazomet treatment altered the microbial communities in continuous cropping soil, which decreased the relative abundance of soil-borne fungal pathogens, including Paecilomyces, Trichoderma, Fusarium, Penicillium, and Acremonium, increased the relative abundance of beneficial soil bacteria, including Bacillius and Pseudomonas. In addition, the dazomet treatment significantly increased the relative abundance of morel mycelia in the soil and significantly improved morel yield under continuous cropping. These results verified the relationship between the obstacles associated with continuous cropping in morels and the soil microbial community and elucidated the mechanism by which the obstacle is alleviated when using dazomet treatment.
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Affiliation(s)
- Bo Chen
- Institute of Soil and Fertilizer of Guizhou Province, Guiyang, China
| | - Gaige Shao
- Xi'an Agricultural Technology Extension Center, Xi'an, China
| | - Tao Zhou
- Fruit and Vegetable Workstation of Guizhou Province, Guiyang, China
| | - Qinghao Fan
- State Key Laboratory of Efficient Utilization of Arid and Semi-arid Arable Land in Northern China, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Nuolin Yang
- State Key Laboratory of Efficient Utilization of Arid and Semi-arid Arable Land in Northern China, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Man Cui
- State Key Laboratory of Efficient Utilization of Arid and Semi-arid Arable Land in Northern China, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Jinwei Zhang
- State Key Laboratory of Efficient Utilization of Arid and Semi-arid Arable Land in Northern China, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Xiangli Wu
- State Key Laboratory of Efficient Utilization of Arid and Semi-arid Arable Land in Northern China, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Bangxi Zhang
- Institute of Soil and Fertilizer of Guizhou Province, Guiyang, China
| | - Ruiying Zhang
- State Key Laboratory of Efficient Utilization of Arid and Semi-arid Arable Land in Northern China, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, China
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13
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Li X, Fu T, Li H, Zhang B, Li W, Zhang B, Wang X, Wang J, Chen Q, He X, Chen H, Zhang Q, Zhang Y, Yang R, Peng Y. Safe Production Strategies for Soil-Covered Cultivation of Morel in Heavy Metal-Contaminated Soils. J Fungi (Basel) 2023; 9:765. [PMID: 37504753 PMCID: PMC10381497 DOI: 10.3390/jof9070765] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Revised: 07/13/2023] [Accepted: 07/14/2023] [Indexed: 07/29/2023] Open
Abstract
Morel is a popular edible mushroom with considerable medicinal and economic value which has garnered global popularity. However, the increasing heavy metal (HM) pollution in the soil presents a significant challenge to morels cultivation. Given the susceptibility of morels to HM accumulation, the quality and output of morels are at risk, posing a serious food safety concern that hinders the development of the morel industry. Nonetheless, research on the mechanism of HM enrichment and mitigation strategies in morel remains scarce. The morel, being cultivated in soil, shows a positive correlation between HM content in its fruiting body and the HM content in the soil. Therefore, soil remediation emerges as the most practical and effective approach to tackle HM pollution. Compared to physical and chemical remediation, bioremediation is a low-cost and eco-friendly approach that poses minimal threats to soil composition and structure. HMs easily enriched during morels cultivation were examined, including Cd, Cu, Hg, and Pb, and we assessed soil passivation technology, microbial remediation, strain screening and cultivation, and agronomic measures as potential approaches for HM pollution prevention. The current review underscores the importance of establishing a comprehensive system for preventing HM pollution in morels.
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Affiliation(s)
- Xue Li
- School of Pharmacy, Zunyi Medical University, Zunyi 563006, China
- Soil and Fertilizer Research Institute, Guizhou Academy of Agricultural Sciences, Guiyang 550006, China
| | - Tianhong Fu
- School of Pharmacy, Zunyi Medical University, Zunyi 563006, China
- Soil and Fertilizer Research Institute, Guizhou Academy of Agricultural Sciences, Guiyang 550006, China
| | - Hongzhao Li
- Faculty of Food Science and Engineering, Foshan University, Foshan 258000, China
- Key Laboratory for New Technology Research of Vegetable, Vegetable Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
| | - Bangxi Zhang
- Soil and Fertilizer Research Institute, Guizhou Academy of Agricultural Sciences, Guiyang 550006, China
| | - Wendi Li
- School of Pharmacy, Zunyi Medical University, Zunyi 563006, China
| | - Baige Zhang
- Key Laboratory for New Technology Research of Vegetable, Vegetable Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
| | - Xiaomin Wang
- Soil and Fertilizer Research Institute, Guizhou Academy of Agricultural Sciences, Guiyang 550006, China
| | - Jie Wang
- Qiandongnan Academy of Agricultural Sciences, Kaili 556000, China
| | - Qing Chen
- College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China
| | - Xuehan He
- School of Pharmaceutical Sciences, Sun Yat-sen University, Shenzhen 518107, China
| | - Hao Chen
- School of Agriculture, Sun Yat-sen University, Shenzhen 518107, China
| | - Qinyu Zhang
- Soil and Fertilizer Research Institute, Guizhou Academy of Agricultural Sciences, Guiyang 550006, China
| | - Yujin Zhang
- School of Pharmacy, Zunyi Medical University, Zunyi 563006, China
| | - Rende Yang
- Soil and Fertilizer Research Institute, Guizhou Academy of Agricultural Sciences, Guiyang 550006, China
| | - Yutao Peng
- School of Agriculture, Sun Yat-sen University, Shenzhen 518107, China
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14
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Zhang Y, Sun S, Luo D, Mao P, Rosazlina R, Martin F, Xu L. Decline in Morel Production upon Continuous Cropping Is Related to Changes in Soil Mycobiome. J Fungi (Basel) 2023; 9:jof9040492. [PMID: 37108946 PMCID: PMC10143708 DOI: 10.3390/jof9040492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 04/07/2023] [Accepted: 04/18/2023] [Indexed: 04/29/2023] Open
Abstract
The black morel Morchella sextelata (Morchellaceae, Pezizales) is a valuable edible mushroom that can be cultivated on a large scale, but a severe yield decline is observed during continuous cropping. The effect of long-term cropping on soil-borne diseases and the dysbiosis of the microbiome and how these biotic factors affect the morel yield are not well understood. To help fill this knowledge gap, we designed an indoor experiment to investigate the influence of black morel cropping regimes on soil physicochemical properties, richness and distribution of fungal community, and morel primordial production. In this study, we employed rDNA metabarcoding and microbial network analysis to evaluate the effect of non-continuous and continuous cropping regimes on the fungal community during three developmental stages of black morel production, namely, the bare soil mycelium, mushroom conidial, and primordial stages. The results showed that during the first year, M. sextelata mycelium overwhelmed the resident soil fungal community by reducing the alpha diversity and niche breadth of soil fungal patterns by a greater amount compared to the continuous cropping regime, leading to high crop yield of 12.39 ± 6.09/quadrat but less complex soil mycobiome. To sustain continuous cropping, exogenous nutrition bags and morel mycelial spawn were consecutively added to the soil. The additional nutrient input stimulated the growth of fungal saprotrophic decomposers. The degrading activity of soil saprotrophs, including M.sextelata, caused a significant increase in soil nutrient content. This led to an inhibitory effect on the formation of morel primordia, resulting in a sharp decline to 0.29 ± 0.25/quadrat and 0.17 ± 0.24/quadrat, respectively, in the final morel cropping. Our findings provided a dynamic overview of the soil fungal community during morel mushroom production, allowing us to identify beneficial and detrimental fungal taxa in the soil mycobiome involved in morel cultivation. The information acquired from this study can be applied to mitigate the adverse impact of continuous cropping on the yield of black morel.
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Affiliation(s)
- Yan Zhang
- School of Biological Sciences, Universiti Sains Malaysia, Minden 11800, Penang, Malaysia
- Key Laboratory of Plant-Microbe Collaboration, School of Biological and Environmental Engineering, Xi'an University, Xi'an 710065, China
| | - Sifan Sun
- Key Laboratory of Plant-Microbe Collaboration, School of Biological and Environmental Engineering, Xi'an University, Xi'an 710065, China
| | - Didi Luo
- Key Laboratory of Plant-Microbe Collaboration, School of Biological and Environmental Engineering, Xi'an University, Xi'an 710065, China
| | - Ping Mao
- Key Laboratory of Plant-Microbe Collaboration, School of Biological and Environmental Engineering, Xi'an University, Xi'an 710065, China
| | - Rusly Rosazlina
- School of Biological Sciences, Universiti Sains Malaysia, Minden 11800, Penang, Malaysia
| | - Francis Martin
- Université de Lorraine, INRAE, Interactions Arbres/Microorganismes, F-54000 Nancy, France
| | - Lingling Xu
- Key Laboratory of Plant-Microbe Collaboration, School of Biological and Environmental Engineering, Xi'an University, Xi'an 710065, China
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15
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Yang C, Jiang X, Ma L, Xiao D, Liu X, Ying Z, Li Y, Lin Y. Transcriptomic and Metabolomic Profiles Provide Insights into the Red-Stipe Symptom of Morel Fruiting Bodies. J Fungi (Basel) 2023; 9:jof9030373. [PMID: 36983541 PMCID: PMC10058789 DOI: 10.3390/jof9030373] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 03/15/2023] [Accepted: 03/16/2023] [Indexed: 03/30/2023] Open
Abstract
The cultivation of true morels (Morchella spp., Morchellaceae, Ascomycota) has rapidly expanded in recent years, especially in China. Red stipe is a symptom wherein the stipe of morel fruiting bodies becomes red-gray, resulting in the gradual death of the affected fruiting bodies. The impact of red-stipe symptom occurrence on the development and nutritional quality of morel fruiting bodies remains unclear. Herein, morel ascocarps with the red-stipe symptom (R) and normal (N), artificially cultivated in the Fujian Province of China, were selected for the transcriptome and metabolome analysis to study the physiological and biochemical responses of morel fruiting bodies to the red-stipe symptom. Transcriptome data revealed several differentially expressed genes between the R and N groups significantly enriched in the tyrosine, riboflavin, and glycerophospholipid metabolism pathways. Similarly, the differentially accumulated metabolites were mainly assigned to metabolic pathways, including tyrosine, the biosynthesis of plant secondary metabolites, and the biosynthesis of amino acids. Moreover, the transcriptome and metabolome data combination revealed that tyrosine metabolism was the most enriched pathway, which was followed by ATP-binding cassette (ABC) transport, alanine, aspartate, and glutamate metabolism. Overall, the integration of transcriptomic and metabolomic data of M. sextelata affected by red-stipe symptoms identified several important genes, metabolites, and pathways. These findings further improve our understanding of the mechanisms underlying the red-stipe symptom development of M. sextelata and provide new insights into how to optimize its cultivation methods.
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Affiliation(s)
- Chi Yang
- Institute of Edible Mushroom, National and Local Joint Engineering Research Center for Breeding & Cultivation of Featured Edible Mushroom, Fujian Academy of Agricultural Sciences, Fuzhou 350014, China
| | - Xiaoling Jiang
- Institute of Edible Mushroom, National and Local Joint Engineering Research Center for Breeding & Cultivation of Featured Edible Mushroom, Fujian Academy of Agricultural Sciences, Fuzhou 350014, China
| | - Lu Ma
- Institute of Edible Mushroom, National and Local Joint Engineering Research Center for Breeding & Cultivation of Featured Edible Mushroom, Fujian Academy of Agricultural Sciences, Fuzhou 350014, China
| | - Donglai Xiao
- Institute of Edible Mushroom, National and Local Joint Engineering Research Center for Breeding & Cultivation of Featured Edible Mushroom, Fujian Academy of Agricultural Sciences, Fuzhou 350014, China
| | - Xiaoyu Liu
- Institute of Edible Mushroom, National and Local Joint Engineering Research Center for Breeding & Cultivation of Featured Edible Mushroom, Fujian Academy of Agricultural Sciences, Fuzhou 350014, China
| | - Zhenghe Ying
- Institute of Edible Mushroom, National and Local Joint Engineering Research Center for Breeding & Cultivation of Featured Edible Mushroom, Fujian Academy of Agricultural Sciences, Fuzhou 350014, China
| | - Yaru Li
- Institute of Edible Mushroom, National and Local Joint Engineering Research Center for Breeding & Cultivation of Featured Edible Mushroom, Fujian Academy of Agricultural Sciences, Fuzhou 350014, China
| | - Yanquan Lin
- Institute of Edible Mushroom, National and Local Joint Engineering Research Center for Breeding & Cultivation of Featured Edible Mushroom, Fujian Academy of Agricultural Sciences, Fuzhou 350014, China
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16
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Giorgio M, Niccolò BGM, Benedetta T, Luisa M, Leonardo BF, Gregory B, Pietro B, Alberto A, Domizia D, Emidio A. Fungal and Bacterial Diversity in the Tuber magnatum Ecosystem and Microbiome. MICROBIAL ECOLOGY 2023; 85:508-521. [PMID: 35237850 DOI: 10.1007/s00248-021-01950-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Accepted: 12/16/2021] [Indexed: 06/14/2023]
Abstract
Fungi belonging to the genus Tuber produce edible ascocarps known as truffles. Tuber magnatum Picco may be the most appreciated truffle species given its peculiar aroma. While its life cycle is not yet fully elucidated, some studies demonstrated an active role of microorganisms. The main goal of this study was to determine how the T. magnatum microbiome varies across space and time. To address this, we characterized microbial communities associated with T. magnatum through high-throughput amplicon sequencing of internal transcribed spacer (ITS) and 16S rDNAs in three productive natural sites in Italy across 2 years. At each site, four truffles were sampled as well as the soil underneath and at 40, 100, and 200 cm from the harvesting points, to assess for microbial variation between substrates, years, and sites. A statistically significant site-related effect on microbial communities was identified, whereas only the prokaryotic community was significantly affected by the distance of soil from the truffle. Significant differences between sampling years were also found, demonstrating a possible relation among rainfall precipitation and Firmicutes and Actinobacteria. Thirty-six bacterial OTUs in truffles and 11 bacterial OTUs in soils beneath truffles were identified as indicator taxa. As shown for other truffle species, the dominance of Bradyrhizobium, Rhizobium, and Ensifer spp. within the truffle fruiting body suggests an evolutionary adaptation of this microorganism to the genus Tuber. The present work offers novel and relevant insights into the microbial ecology of T. magnatum ecosystems and fruiting bodies. The function and role of these bacteria in the truffle microbiome and life cycle are in need of further investigation.
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Affiliation(s)
- Marozzi Giorgio
- Department of Agricultural, Food and Environmental Sciences, University of Perugia, 06121, Perugia, Italy
| | - Benucci Gian Maria Niccolò
- Department of Plant, Soil and Microbial Sciences, Michigan State University, East Lansing, MI, 48824, USA.
| | - Turchetti Benedetta
- Department of Agricultural, Food and Environmental Sciences, University of Perugia, 06121, Perugia, Italy
| | - Massaccesi Luisa
- Department for Innovation in Biological, Agro-Food and Forest Systems, University of Tuscia, 01100, Viterbo, Italy
| | - Baciarelli Falini Leonardo
- Department of Agricultural, Food and Environmental Sciences, University of Perugia, 06121, Perugia, Italy
| | - Bonito Gregory
- Department of Plant, Soil and Microbial Sciences, Michigan State University, East Lansing, MI, 48824, USA
| | - Buzzini Pietro
- Department of Agricultural, Food and Environmental Sciences, University of Perugia, 06121, Perugia, Italy
| | - Agnelli Alberto
- Department of Agricultural, Food and Environmental Sciences, University of Perugia, 06121, Perugia, Italy
| | - Donnini Domizia
- Department of Agricultural, Food and Environmental Sciences, University of Perugia, 06121, Perugia, Italy
| | - Albertini Emidio
- Department of Agricultural, Food and Environmental Sciences, University of Perugia, 06121, Perugia, Italy
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17
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Benucci GMN, Beschoren da Costa P, Wang X, Bonito G. Stochastic and deterministic processes shape bioenergy crop microbiomes along a vertical soil niche. Environ Microbiol 2023; 25:352-366. [PMID: 36354216 PMCID: PMC10099798 DOI: 10.1111/1462-2920.16269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Accepted: 10/27/2022] [Indexed: 11/11/2022]
Abstract
Sustainable biofuel cropping systems aim to address climate change while meeting energy needs. Understanding how soil and plant-associated microbes respond to these different cropping systems is key to promoting agriculture sustainability and evaluating changes in ecosystem functions. Here, we leverage a long-term biofuel cropping system field experiment to dissect soil and root microbiome changes across a soil-depth gradient in poplar, restored prairie and switchgrass to understand their effects on the microbial communities. High throughput amplicon sequencing of the fungal internal transcribed spacer (ITS) and prokaryotic 16S DNA regions showed a common trend of root and soil microbial community richness decreasing and evenness increasing with depth. Ecological niche (root vs. soil) had the strongest effect on community structure, followed by depth, then crop. Stochastic processes dominated the structuring of fungal communities in deeper soil layers while operational taxonomic units (OTUs) in surface soil layers were more likely to co-occur and to be enriched by plant hosts. Prokaryotic communities were dispersal limited at deeper depths. Microbial networks showed a higher density, connectedness, average degree and module size in deeper soils. We observed a decrease in fungal-fungal links and an increase of bacteria-bacteria links with increasing depth in all crops, particularly in the root microbiome.
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Affiliation(s)
- Gian Maria Niccolò Benucci
- DOE Great Lakes Bioenergy Research Center, Michigan State University, East Lansing, Michigan, USA
- Department of Plant, Soil, and Microbial Sciences, Michigan State University, East Lansing, Michigan, USA
- Department of Microbiology & Molecular Genetics, Michigan State University, East Lansing, USA
| | - Pedro Beschoren da Costa
- DOE Great Lakes Bioenergy Research Center, Michigan State University, East Lansing, Michigan, USA
- Department of Plant, Soil, and Microbial Sciences, Michigan State University, East Lansing, Michigan, USA
| | - Xinxin Wang
- Department of Plant, Soil, and Microbial Sciences, Michigan State University, East Lansing, Michigan, USA
| | - Gregory Bonito
- DOE Great Lakes Bioenergy Research Center, Michigan State University, East Lansing, Michigan, USA
- Department of Plant, Soil, and Microbial Sciences, Michigan State University, East Lansing, Michigan, USA
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18
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Ultrastructure and Physiological Characterization of Morchella Mitospores and Their Relevance in the Understanding of the Morel Life Cycle. Microorganisms 2023; 11:microorganisms11020345. [PMID: 36838309 PMCID: PMC9960803 DOI: 10.3390/microorganisms11020345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 01/25/2023] [Accepted: 01/25/2023] [Indexed: 02/01/2023] Open
Abstract
Morels, which belong to the Ascomycete genus Morchella, are highly valued edible fungi treasured by gourmet chefs worldwide. Some species are saprotrophic and others are able to form facultative mycorrhizal-like associations with plant roots without establishing true ectomycorrhizal symbioses. In general, it is considered that the formation of asexual spores, or mitospores, is an important step in the life cycle of morels. However, ultrastructure characterization and physiological attributes of morel mitospores have received little attention. In this contribution, the mitospores of M. sextelata were successfully induced under laboratory conditions and their ultrastructure, occurrence, germination, physiological characteristics and mating type gene structure were studied. Mitospore production was closely related to aeration, nutrition and humidity conditions. The average germination rate of mitospores on different media and under various induction stimuli was very low, with an average of 1/100,000. Based on the ultrastructure characterization, low germination rate, growth rate decline, rapid aging and mating genotyping, it was concluded that the mitospores of M. sextelata had lost their conventional function as conidia and might act more as mate sperm-like (gamete) structures. Thus, this study contributed to a deeper understanding of the life cycle of the economically and ecologically important morel fungal group.
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19
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Zhang C, Shi X, Zhang J, Zhang Y, Wang W. Dynamics of soil microbiome throughout the cultivation life cycle of morel ( Morchella sextelata). Front Microbiol 2023; 14:979835. [PMID: 36910237 PMCID: PMC9992412 DOI: 10.3389/fmicb.2023.979835] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 02/02/2023] [Indexed: 02/24/2023] Open
Abstract
Although Morchella sextelata (morel) is a well-known, edible, and medicinal fungus widely cultivated in China, the dynamics and roles of its soil microbiome during cultivation are unclear. Using rhizosphere soil samples collected throughout the M. sextelata cultivation life cycle, we conducted a high-throughput metagenomic sequencing analysis, with an emphasis on variations in soil microbial composition, characteristic biomarkers, and ecological functions. We found that microbial relative abundance, alpha diversity, and structure varied significantly among fungal growth stages. A total of 47 stage-associated biomarkers were identified through a linear discriminant analysis of effect size. In addition, horizontal comparison of soil microbiomes exhibiting successful and failed primordium formation further confirmed primordium-associated microbes with possible key roles in primordium formation. A microbial function analysis revealed that nutrient metabolism-related pathways were enriched during mycelium and fruiting body stages, whereas the signal transduction pathway was enriched during the primordium stage. This result indicates that diverse microbes are required at different growth stages of M. sextelata. Our research has revealed the dynamic scenario of the soil microbiome throughout the cultivation life cycle of M. sextelata. The high-resolution microbial profiles uncovered in the present study provide novel insights that should contribute to the improvement of morel cultivation using microbial inoculants.
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Affiliation(s)
- Chen Zhang
- School of Ecology and Environment, Northwestern Polytechnical University, Xi'an, China
| | - Xiaofei Shi
- The Germplasm Bank of Wild Species, Yunnan Key Laboratory for Fungal Diversity and Green Development, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
| | - Jiexiong Zhang
- School of Ecology and Environment, Northwestern Polytechnical University, Xi'an, China
| | - Yesheng Zhang
- Shandong Junsheng Biotechnologies Co., Ltd., Liaocheng, China
| | - Wen Wang
- School of Ecology and Environment, Northwestern Polytechnical University, Xi'an, China
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Zhang Q, Shu F, Chen X, Liu W, Bian Y, Kang H. Construction of nucleus-directed fluorescent reporter systems and its application to verification of heterokaryon formation in Morchella importuna. Front Microbiol 2022; 13:1051013. [PMID: 36478869 PMCID: PMC9720127 DOI: 10.3389/fmicb.2022.1051013] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Accepted: 11/04/2022] [Indexed: 08/26/2023] Open
Abstract
INTRODUCTION Morchella importuna (M. importuna) is a rare fungus with high nutrition value and distinct flavor. Despite the successful artificial cultivation, its genetic characteristics and biological processes such as life cycle, reproductive system, and trophic mode remain poorly understood. METHODS Considering this, we constructed pEH2B and pMH2B vectors by fusing M. importuna endogenous histone protein H2B with fluorescent proteins eGFP or mCherry, respectively. Based on the constructed pEH2B and pMH2B vectors, nuclear fluorescence localization was performed via Agrobacterium tumefaciens-mediated transformation (ATMT). These two vectors were both driven by two endogenous promoters glyceraldehyde 3-phosphate dehydrogenase (GPD) and ubiquitin (UBI). The vector-based reporter systems were tested by the paired culture of two genetically modified strains pEH2B-labeled M04M24 (24e, MAT1-1-1) and pMH2B-abeled M04M26 (26m, MAT1-2-1). RESULTS The fluorescence observation and molecular identification results indicated the successful hyphal fusion and heterokaryon formation. We found that the expression of the reporter genes was stable, and it did not interfere with the growth of the fungus. DISCUSSION Our constructed nucleus-directed fluorescent systems in M. importuna can be used for monitoring the dynamic development and reproductive processes in living cells and also for monitoring the interaction between morels and plant roots. Therefore, morels exhibit the potential to be a candidate organism used for the research on basic biology and genetics of ascomycetes.
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Affiliation(s)
- Qianqian Zhang
- Institute of Applied Mycology, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
- Hubei Hongshan Laboratory, Wuhan, China
| | - Fang Shu
- Institute of Applied Mycology, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
- Hubei Hongshan Laboratory, Wuhan, China
| | - Xin Chen
- Institute of Applied Mycology, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
- Hubei Hongshan Laboratory, Wuhan, China
| | - Wei Liu
- Institute of Applied Mycology, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
- Hubei Hongshan Laboratory, Wuhan, China
| | - Yinbing Bian
- Institute of Applied Mycology, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
- Hubei Hongshan Laboratory, Wuhan, China
| | - Heng Kang
- Institute of Applied Mycology, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
- Hubei Hongshan Laboratory, Wuhan, China
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21
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Shi X, Liu D, He X, Liu W, Yu F. Epidemic Identification of Fungal Diseases in Morchella Cultivation across China. J Fungi (Basel) 2022; 8:1107. [PMID: 36294672 PMCID: PMC9604896 DOI: 10.3390/jof8101107] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 10/11/2022] [Accepted: 10/17/2022] [Indexed: 08/25/2023] Open
Abstract
True morels (Morchella, Pezizales) are world-renowned edible mushrooms (ascocarps) that are widely demanded in international markets. Morchella has been successfully artificially cultivated since 2012 in China and is rapidly becoming a new edible mushroom industry occupying up to 16,466 hectares in the 2021-2022 season. However, nearly 25% of the total cultivation area has annually suffered from fungal diseases. While a variety of morel pathogenic fungi have been reported their epidemic characteristics are unknown, particularly in regional or national scales. In this paper, ITS amplicon sequencing and microscopic examination were concurrently performed on the morel ascocarp lesions from 32 sites in 18 provinces across China. Results showed that Diploöspora longispora (75.48%), Clonostachys solani (5.04%), Mortierella gamsii (0.83%), Mortierella amoeboidea (0.37%) and Penicillium kongii (0.15%) were the putative pathogenic fungi. The long, oval, septate conidia of D. longispora was observed on all ascocarps. Oval asexual spores and sporogenic structures, such as those of Clonostachys, were also detected in C. solani infected samples with high ITS read abundance. Seven isolates of D. longispora were isolated from seven selected ascocarps lesions. The microscopic characteristics of pure cultures of these isolates were consistent with the morphological characteristics of ascocarps lesions. Diploöspora longispora had the highest amplification abundance in 93.75% of the samples, while C. solani had the highest amplification abundance in six biological samples (6.25%) of the remaining two sampling sites. The results demonstrate that D. longispora is a major culprit of morel fungal diseases. Other low-abundance non-host fungi appear to be saprophytic fungi infecting after D. longispora. This study provides data supporting the morphological and molecular identification and prevention of fungal diseases of morel ascocarps.
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Affiliation(s)
- Xiaofei Shi
- The Germplasm Bank of Wild Species, Yunnan Key Laboratory for Fungal Diversity and Green Development, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
- Guizhou Kangqunyuan Biotechnology Co., Ltd., Liupanshui 553600, China
| | - Dong Liu
- The Germplasm Bank of Wild Species, Yunnan Key Laboratory for Fungal Diversity and Green Development, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Xinhua He
- The Germplasm Bank of Wild Species, Yunnan Key Laboratory for Fungal Diversity and Green Development, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
- School of Biological Sciences, University of Western Australia, Perth, WA 6009, Australia
| | - Wei Liu
- The Germplasm Bank of Wild Species, Yunnan Key Laboratory for Fungal Diversity and Green Development, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Fuqiang Yu
- The Germplasm Bank of Wild Species, Yunnan Key Laboratory for Fungal Diversity and Green Development, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
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22
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Phithakrotchanakoon C, Mayteeworakoon S, Siriarchawatana P, Kitikhun S, Harnpicharnchai P, Wansom S, Eurwilaichitr L, Ingsriswang S. Beneficial bacterial-Auricularia cornea interactions fostering growth enhancement identified from microbiota present in spent mushroom substrate. Front Microbiol 2022; 13:1006446. [PMID: 36299733 PMCID: PMC9589457 DOI: 10.3389/fmicb.2022.1006446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 09/26/2022] [Indexed: 11/13/2022] Open
Abstract
Complex dynamic bacterial-fungal interactions play key roles during mushroom growth, ranging from mutualism to antagonism. These interactions convey a large influence on mushroom’s mycelial and fruiting body formation during mushroom cultivation. In this study, high-throughput amplicon sequencing was conducted to investigate the structure of bacterial communities in spent mushroom substrates obtained from cultivation of two different groups of Auricularia cornea with (A) high yield and (B) low yield of fruiting body production. It was found that species richness and diversity of microbiota in group (A) samples were significantly higher than in group (B) samples. Among the identified 765 bacterial OTUs, 5 bacterial species found to exhibit high differential abundance between group (A) and group (B) were Pseudonocardia mangrovi, Luteimonas composti, Paracoccus pantotrophus, Sphingobium jiangsuense, and Microvirga massiliensis. The co-cultivation with selected bacterial strains showed that A. cornea TBRC 12900 co-cultivated with P. mangrovi TBRC-BCC 42794 promoted a high level of mycelial growth. Proteomics analysis was performed to elucidate the biological activities involved in the mutualistic association between A. cornea TBRC 12900 and P. mangrovi TBRC-BCC 42794. After co-cultivation of A. cornea TBRC 12900 and P. mangrovi TBRC-BCC 42794, 1,616 proteins were detected including 578 proteins of A. cornea origin and 1,038 proteins of P. mangrovi origin. Functional analysis and PPI network construction revealed that the high level of mycelial growth in the co-culture condition most likely resulted from concerted actions of (a) carbohydrate-active enzymes including hydrolases, glycosyltransferases, and carbohydrate esterases important for carbohydrate metabolism and cell wall generation/remodeling, (b) peptidases including cysteine-, metallo-, and serine-peptidases, (c) transporters including the ABC-type transporter superfamily, the FAT transporter family, and the VGP family, and (d) proteins with proposed roles in formation of metabolites that can act as growth-promoting molecules or those normally contain antimicrobial activity (e.g., indoles, terpenes, β-lactones, lanthipeptides, iturins, and ectoines). The findings will provide novel insights into bacterial-fungal interactions during mycelial growth and fruiting body formation. Our results can be utilized for the selection of growth-promoting bacteria to improve the cultivation process of A. cornea with a high production yield, thus conveying potentially high socio-economic impact to mushroom agriculture.
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Affiliation(s)
- Chitwadee Phithakrotchanakoon
- Microbial Systems and Computational Biology Research Team, Thailand Bioresource Research Center, National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, Pathum Thani, Thailand
| | - Sermsiri Mayteeworakoon
- Microbial Systems and Computational Biology Research Team, Thailand Bioresource Research Center, National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, Pathum Thani, Thailand
| | - Paopit Siriarchawatana
- Microbial Systems and Computational Biology Research Team, Thailand Bioresource Research Center, National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, Pathum Thani, Thailand
| | - Supattra Kitikhun
- Microbial Systems and Computational Biology Research Team, Thailand Bioresource Research Center, National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, Pathum Thani, Thailand
| | - Piyanun Harnpicharnchai
- Microbial Systems and Computational Biology Research Team, Thailand Bioresource Research Center, National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, Pathum Thani, Thailand
| | - Supaporn Wansom
- National Energy Technology Center, National Science and Technology Development Agency, Pathum Thani, Thailand
| | - Lily Eurwilaichitr
- National Energy Technology Center, National Science and Technology Development Agency, Pathum Thani, Thailand
| | - Supawadee Ingsriswang
- Microbial Systems and Computational Biology Research Team, Thailand Bioresource Research Center, National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, Pathum Thani, Thailand
- *Correspondence: Supawadee Ingsriswang,
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Wei-Ye L, Hong-Bo G, Ke-Xin B, Alekseevna SL, Xiao-Jian Q, Xiao-Dan Y. Determining why continuous cropping reduces the production of the morel Morchella sextelata. Front Microbiol 2022; 13:903983. [PMID: 36171750 PMCID: PMC9510911 DOI: 10.3389/fmicb.2022.903983] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Accepted: 08/16/2022] [Indexed: 11/24/2022] Open
Abstract
Artificial cultivation of Morchella sextelata and other morels is expanding in China, but continuous cropping reduces Morchella for unknown reasons. Here, we investigated soil that had been used or not used for M. sextelata cultivation for 0, 1, and 2 years. We found that the continuous cropping of M. sextelata substantially reduced the pH and the nutrient content of the hyphosphere soil and increased sclerotia formation by M. sextelata. Changes in the structure of bacterial and fungal communities were associated with levels of available nitrogen (N) and phosphorus in the soil. With continuous cropping, the richness and diversity of fungal and bacterial communities increased, but the abundance of Bacillus and Lactobacillus decreased and the abundance of pathogenic fungi increased. FAPROTAX analysis indicated that N cycle functions were enriched more with than without continuous cultivation, and that enrichment of N cycle and sulfate respiration functions was higher in the second than in the first year of cultivation. FunGuild analysis indicated that the functions related to pathotrophs and wood saprotrophs were enriched by M. sextelata cultivation. Overall, the results suggest that continuous cropping may reduce M. sextelata production by acidifying the soil and increasing the abundance of pathogenic fungi. Additional research is needed to determine whether increases in the abundance of pathogenic fungi and changes in soil chemistry result in the declines in production that occur with continuous M. sextelata cultivation.
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Affiliation(s)
- Liu Wei-Ye
- College of Biological Science and Technology, Shenyang Agricultural University, Shenyang, China
| | - Guo Hong-Bo
- College of Life Engineering, Shenyang Institute of Technology, Fushun, China
- Primorye State Agricultural Academy, Ussuriisk, Russia
| | - Bi Ke-Xin
- College of Biological Science and Technology, Shenyang Agricultural University, Shenyang, China
| | - Sibirina Lidiya Alekseevna
- Primorye State Agricultural Academy, Ussuriisk, Russia
- Federal Scientific Center of the East Asia Terrestrial Biodiversity, Far Eastern Branch of Russian Academy of Sciences, Vladivostok, Russia
| | - Qi Xiao-Jian
- College of Biological Science and Technology, Shenyang Agricultural University, Shenyang, China
| | - Yu Xiao-Dan
- College of Biological Science and Technology, Shenyang Agricultural University, Shenyang, China
- *Correspondence: Yu Xiao-Dan,
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Host genotype controls ecological change in the leaf fungal microbiome. PLoS Biol 2022; 20:e3001681. [PMID: 35951523 PMCID: PMC9371330 DOI: 10.1371/journal.pbio.3001681] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Accepted: 05/18/2022] [Indexed: 11/19/2022] Open
Abstract
Leaf fungal microbiomes can be fundamental drivers of host plant success, as they contain pathogens that devastate crop plants and taxa that enhance nutrient uptake, discourage herbivory, and antagonize pathogens. We measured leaf fungal diversity with amplicon sequencing across an entire growing season in a diversity panel of switchgrass (Panicum virgatum). We also sampled a replicated subset of genotypes across 3 additional sites to compare the importance of time, space, ecology, and genetics. We found a strong successional pattern in the microbiome shaped both by host genetics and environmental factors. Further, we used genome-wide association (GWA) mapping and RNA sequencing to show that 3 cysteine-rich receptor-like kinases (crRLKs) were linked to a genetic locus associated with microbiome structure. We confirmed GWAS results in an independent set of genotypes for both the internal transcribed spacer (ITS) and large subunit (LSU) ribosomal DNA markers. Fungal pathogens were central to microbial covariance networks, and genotypes susceptible to pathogens differed in their expression of the 3 crRLKs, suggesting that host immune genes are a principal means of controlling the entire leaf microbiome. Leaf fungal microbiomes can strongly influence host plant success. Monitoring the leaf fungal microbiome of switchgrass over time shows microbial ecological succession, and reveals the host plant genes that influence community-wide changes.
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25
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Yuan YH, Liu LX, Guo L, Wang L, Hao JW, Liu YG. Changes of bacterial communities and volatile compounds developed from the spoilage of white Hypsizygus marmoreus under different storage conditions. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2022.113906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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26
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Large-scale commercial cultivation of morels: current state and perspectives. Appl Microbiol Biotechnol 2022; 106:4401-4412. [PMID: 35731306 DOI: 10.1007/s00253-022-12012-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 05/29/2022] [Accepted: 06/01/2022] [Indexed: 11/02/2022]
Abstract
Since morels were first successfully cultivated commercially in Sichuan in 2012, morel cultivation has expanded to more than 20 provinces in China. The highest yield currently reaches 15,000 kg/ha. Morel cultivation is characterized by its environmental friendliness, short cycle length, and high profit. However, the yield obtained is unstable which makes morel cultivation a high-risk industry. Although 10 production cycles have passed, there is still a gap between morel cultivation practice and our basic knowledge of morel biology. This mini-review concentrates on the development needs of morel cultivation. We illustrate the key techniques used in the large-scale commercial cultivation of morels and their relevant studies, including nutritional requirements, mechanisms of nutrient bag, soil type, vegetative and reproductive growth conditions, and disease control. This review will be a useful practical reference for the commercial artificial cultivation of morels and promoting the vital technologies required. KEY POINTS: •Unstable yield still exists after commercial cultivation of morels realized. •There is a gap between cultivation practice and our knowledge of morel biology. •Key techniques are illustrated for morel cultivation practice.
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27
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Malone T, Swinton SM, Pudasainee A, Bonito G. Economic Assessment of Morel ( Morchella spp.) Foraging in Michigan, USA. ECONOMIC BOTANY 2022; 76:1-15. [PMID: 35465299 PMCID: PMC9012437 DOI: 10.1007/s12231-022-09548-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 04/05/2022] [Indexed: 06/14/2023]
Abstract
Wild-foraged mushrooms represent a natural resource that provides economic value to foragers through both market and nonmarket recreational channels. Despite the importance of non-timber forest resources for sustainable management of forestlands, little attention has been paid to who forages for wild mushrooms, why they choose to forage, where they go, and what economic value is generated. This report draws upon survey data from 78 foragers who are certified to sell their mushrooms and 85 noncertified foraging enthusiasts. Its goal is to understand foraging patterns and values for morels (Morchella spp.) in the State of Michigan (USA). Most foragers spend fewer than 10 days each year foraging, and those who sell their morels are most likely to sell to local restaurants, pubs and bars, and informally to their friends. Certified foragers who choose to sell their morels sell for an average price of $36 per pound ($36/lb) for fresh black or yellow morels. Costs to supply fresh morels ranged widely among the 16 certified sellers who reported full cost details; over 70% of morels were supplied at costs below $30/lb, but some certified sellers incurred costs in the hundreds of dollars per pound. Recreational morel gatherers paid $43 to $335 per trip of foraging morels, with a median value of $93 per trip. Morel foragers also search for other mushrooms with oyster mushrooms (Pleurtous spp.), chanterelles (Cantharellus spp), hen-of the-woods (Grifola frondosa), and chicken-of-the-woods (Laetiporus spp) being the most popular.
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Affiliation(s)
- Trey Malone
- Department of Agricultural, Food, and Resource Economics, Michigan State University, East Lansing, MI USA
| | - Scott M. Swinton
- Department of Agricultural, Food, and Resource Economics, Michigan State University, East Lansing, MI USA
| | - Aastha Pudasainee
- Department of Agricultural, Food, and Resource Economics, Michigan State University, East Lansing, MI USA
| | - Gregory Bonito
- Department of Plant, Soil, and Microbial Sciences, Michigan State University, East Lansing, MI USA
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Soil Origin and Plant Genotype Modulate Switchgrass Aboveground Productivity and Root Microbiome Assembly. mBio 2022; 13:e0007922. [PMID: 35384699 PMCID: PMC9040762 DOI: 10.1128/mbio.00079-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Switchgrass (Panicum virgatum) is a model perennial grass for bioenergy production that can be productive in agricultural lands that are not suitable for food production. There is growing interest in whether its associated microbiome may be adaptive in low- or no-input cultivation systems. However, the relative impact of plant genotype and soil factors on plant microbiome and biomass are a challenge to decouple. To address this, a common garden greenhouse experiment was carried out using six common switchgrass genotypes, which were each grown in four different marginal soils collected from long-term bioenergy research sites in Michigan and Wisconsin. We characterized the fungal and bacterial root communities with high-throughput amplicon sequencing of the ITS and 16S rDNA markers, and collected phenological plant traits during plant growth, as well as soil chemical traits. At harvest, we measured the total plant aerial dry biomass. Significant differences in richness and Shannon diversity across soils but not between plant genotypes were found. Generalized linear models showed an interaction between soil and genotype for fungal richness but not for bacterial richness. Community structure was also strongly shaped by soil origin and soil origin × plant genotype interactions. Overall, plant genotype effects were significant but low. Random Forest models indicate that important factors impacting switchgrass biomass included NO3−, Ca2+, PO43−, and microbial biodiversity. We identified 54 fungal and 52 bacterial predictors of plant aerial biomass, which included several operational taxonomic units belonging to Glomeraceae and Rhizobiaceae, fungal and bacterial lineages that are involved in provisioning nutrients to plants.
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Yu FM, Jayawardena RS, Thongklang N, Lv ML, Zhu XT, Zhao Q. Morel Production Associated with Soil Nitrogen-Fixing and Nitrifying Microorganisms. J Fungi (Basel) 2022; 8:jof8030299. [PMID: 35330300 PMCID: PMC8950353 DOI: 10.3390/jof8030299] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 03/09/2022] [Accepted: 03/09/2022] [Indexed: 02/02/2023] Open
Abstract
True morels (Morchella, Pezizales) cultivated in soil are subject to complex influences from soil microbial communities. To explore the characteristics of soil microbial communities on morel cultivation, and evaluate whether these microbes are related to morel production, we collected 23 soil samples from four counties in Sichuan and Yunnan Provinces, China. Based on ITS and 16S rDNA amplicon sequencing, the alpha diversity analysis indicated that the biodiversity of morel cultivation soil showed a downward trend compared with the bare soil. The results also showed that there were no significant differences in soil microbial communities between OC (bare soil) and OO (after one-year suspension of sowing). This means that, after about one year of stopping sowing, the component and structure of soil that once cultivated morel would be restored. In co-occurrence networks, some noteworthy bacterial microbes involved in nitrogen fixation and nitrification have been identified in soils with high morel yields, such as Arthrobacter, Bradyhizobium, Devosia, Pseudarthrobacter, Pseudolabrys, and Nitrospira. In contrast, in soils with low or no morel yield, some pathogenic fungi accounted for a high proportion, including Gibberella, Microidium, Penicillium, Sarocladium, Streptomyces, and Trichoderma. This study provided valuable information for the isolation and culturing of some beneficial microbes for morel cultivation in further study and, potentially, to harness the power of the microbiome to improve morel production and health.
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Affiliation(s)
- Feng-Ming Yu
- Key Laboratory for Plant Diversity and Biotechnology of East Asia, Yunnan Key Laboratory of Fungal Diversity and Green Development, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China;
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand; (R.S.J.); (N.T.)
- School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand
| | - Ruvishika Shehali Jayawardena
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand; (R.S.J.); (N.T.)
- School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand
| | - Naritsada Thongklang
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand; (R.S.J.); (N.T.)
- School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand
| | - Meng-Lan Lv
- School of Chemical Engineering, Guizhou Institute of Technology, Guiyang 550003, China;
| | - Xue-Tai Zhu
- College of Life Science, Northwest Normal University, Lanzhou 730070, China;
| | - Qi Zhao
- Key Laboratory for Plant Diversity and Biotechnology of East Asia, Yunnan Key Laboratory of Fungal Diversity and Green Development, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China;
- School of Chemical Engineering, Guizhou Institute of Technology, Guiyang 550003, China;
- Correspondence:
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Chen L, Yan M, Qian X, Yang Z, Xu Y, Wang T, Cao J, Sun S. Bacterial Community Composition in the Growth Process of Pleurotus eryngii and Growth-Promoting Abilities of Isolated Bacteria. Front Microbiol 2022; 13:787628. [PMID: 35173699 PMCID: PMC8842659 DOI: 10.3389/fmicb.2022.787628] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Accepted: 01/12/2022] [Indexed: 11/13/2022] Open
Abstract
The effects of biological factors on the vegetative growth process of mushrooms remain largely unexplored. We investigated the bacterial community in different growth stages of Pleurotus eryngii by high-throughput sequencing technology to explore the relationship between interacting bacteria and the growth and development of P. eryngii. We found significant variances in mushroom interacting association bacteria (MIAB) compositions among the samples from different growth stages, and 410 genera were identified. The bacteria in the full-bag and post-ripe stages were shifted to the biocontrol and growth-promotion ones. The mushroom growth-promoting bacteria (MGPB) were also isolated successfully and identified as B. cereus Bac1. The growth speed and density of mycelial pellets of P. eryngii, and activities of two exoenzymes (laccase and amylase), were analyzed by adding the different volumes of cell-free fermentation broth of B. cereus Bac1 to fungal culture media. The results showed that when a 5 mL cell-free fermentation broth was used, the growth speed of P. eryngii hyphae was enhanced by 1.15-fold over the control and reached 0.46 mm/h. The relative activity of laccase and amylase was increased by 26.9 and 43.83%. Our study revealed that the abundant interacting bacteria coexist with P. eryngii hyphae. Moreover, the abundance of some bacteria exhibiting a positive correlation with the growth periods of their host fungi can effectively promote the growth of the host, which will provide technical supports on the high-efficiency production of P. eryngii in factory cultivation.
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Affiliation(s)
- Liding Chen
- College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Miao Yan
- College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Xin Qian
- College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Ziwei Yang
- College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Yanfei Xu
- College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Tianjiao Wang
- College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Jixuan Cao
- College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Shujing Sun
- College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
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Balan V, Zhu W, Krishnamoorthy H, Benhaddou D, Mowrer J, Husain H, Eskandari A. Challenges and opportunities in producing high-quality edible mushrooms from lignocellulosic biomass in a small scale. Appl Microbiol Biotechnol 2022; 106:1355-1374. [PMID: 35098331 DOI: 10.1007/s00253-021-11749-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 12/11/2021] [Accepted: 12/15/2021] [Indexed: 11/02/2022]
Abstract
Mushrooms are high-value products that can be produced from lignocellulosic biomass. Mushrooms are the fruiting body of fungi and are domestically cultivated using lignocellulosic biomass obtained from agricultural byproducts and woody biomass. A handful of edible mushroom species are commercially cultivated at small, medium, and large scales for culinary and medicinal use. Details about different lignocellulosic biomass and their composition that are commonly used to produce mushrooms are outlined in this review. In addition, discussions on four major processing steps (i) producing solid and liquid spawn, (ii) conventional and mechanized processing lignocellulosic biomass substrates to produce mushroom beds, (iii) maintaining growth conditions in climate-controlled rooms, and (iv) energy requirements and managements to produce mushrooms are also provided. The new processing methods and technology outlined in this review may allow mushrooms to be economically and sustainably produced at a small scale to satisfy the growing food needs and create rural jobs. KEY POINTS: • Some of the challenges faced by small-scale mushroom growers are presented. This review is expected to stimulate more research to address the challenges.
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Affiliation(s)
- Venkatesh Balan
- Biotechnology Program, Department of Engineering Technology, College of Technology, University of Houston, Sugarland, TX, 77479, USA.
| | - Weihang Zhu
- Mechanical Engineering Technology Program, Department of Engineering Technology, College of Technology, University of Houston, Houston, TX, 77204, USA
| | - Harish Krishnamoorthy
- Department of Electrical and Computer Engineering, Cullen College of Engineering, University of Houston, Houston, TX, 77204, USA
| | - Driss Benhaddou
- Computer Engineering Technology Program, Department of Engineering Technology, College of Technology, University of Houston, Houston, TX, 77204, USA
| | - Jake Mowrer
- Department of Soil and Crop Sciences, Texas A&M AgriLife Extension, College Station, TX, 77843, USA
| | - Hasan Husain
- Biotechnology Program, Department of Engineering Technology, College of Technology, University of Houston, Sugarland, TX, 77479, USA
| | - Artin Eskandari
- Biotechnology Program, Department of Engineering Technology, College of Technology, University of Houston, Sugarland, TX, 77479, USA
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Robinson AJ, House GL, Morales DP, Kelliher JM, Gallegos-Graves LV, LeBrun ES, Davenport KW, Palmieri F, Lohberger A, Bregnard D, Estoppey A, Buffi M, Paul C, Junier T, Hervé V, Cailleau G, Lupini S, Nguyen HN, Zheng AO, Gimenes LJ, Bindschedller S, Rodrigues DF, Werner JH, Young JD, Junier P, Chain PSG. Widespread bacterial diversity within the bacteriome of fungi. Commun Biol 2021; 4:1168. [PMID: 34621007 PMCID: PMC8497576 DOI: 10.1038/s42003-021-02693-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Accepted: 09/20/2021] [Indexed: 02/08/2023] Open
Abstract
Knowledge of associations between fungal hosts and their bacterial associates has steadily grown in recent years as the number and diversity of examinations have increased, but current knowledge is predominantly limited to a small number of fungal taxa and bacterial partners. Here, we screened for potential bacterial associates in over 700 phylogenetically diverse fungal isolates, representing 366 genera, or a tenfold increase compared with previously examined fungal genera, including isolates from several previously unexplored phyla. Both a 16 S rDNA-based exploration of fungal isolates from four distinct culture collections spanning North America, South America and Europe, and a bioinformatic screen for bacterial-specific sequences within fungal genome sequencing projects, revealed that a surprisingly diverse array of bacterial associates are frequently found in otherwise axenic fungal cultures. We demonstrate that bacterial associations with diverse fungal hosts appear to be the rule, rather than the exception, and deserve increased consideration in microbiome studies and in examinations of microbial interactions.
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Affiliation(s)
- Aaron J Robinson
- Biosecurity and Public Health Group, Bioscience Division, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA
| | - Geoffrey L House
- Biosecurity and Public Health Group, Bioscience Division, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA
| | - Demosthenes P Morales
- Biosecurity and Public Health Group, Bioscience Division, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA
- Center of Integrated Nanotechnologies, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA
| | - Julia M Kelliher
- Biosecurity and Public Health Group, Bioscience Division, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA
| | - La Verne Gallegos-Graves
- Biosecurity and Public Health Group, Bioscience Division, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA
| | - Erick S LeBrun
- Biosecurity and Public Health Group, Bioscience Division, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA
| | - Karen W Davenport
- Biosecurity and Public Health Group, Bioscience Division, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA
| | - Fabio Palmieri
- Laboratory of Microbiology, Institute of Biology, University of Neuchâtel, CH-2000, Neuchâtel, Switzerland
| | - Andrea Lohberger
- Laboratory of Microbiology, Institute of Biology, University of Neuchâtel, CH-2000, Neuchâtel, Switzerland
| | - Danaé Bregnard
- Laboratory of Microbiology, Institute of Biology, University of Neuchâtel, CH-2000, Neuchâtel, Switzerland
| | - Aislinn Estoppey
- Laboratory of Microbiology, Institute of Biology, University of Neuchâtel, CH-2000, Neuchâtel, Switzerland
| | - Matteo Buffi
- Laboratory of Microbiology, Institute of Biology, University of Neuchâtel, CH-2000, Neuchâtel, Switzerland
| | - Christophe Paul
- Laboratory of Microbiology, Institute of Biology, University of Neuchâtel, CH-2000, Neuchâtel, Switzerland
| | - Thomas Junier
- Laboratory of Microbiology, Institute of Biology, University of Neuchâtel, CH-2000, Neuchâtel, Switzerland
| | - Vincent Hervé
- Laboratory of Microbiology, Institute of Biology, University of Neuchâtel, CH-2000, Neuchâtel, Switzerland
| | - Guillaume Cailleau
- Laboratory of Microbiology, Institute of Biology, University of Neuchâtel, CH-2000, Neuchâtel, Switzerland
| | - Simone Lupini
- Department of Civil and Environmental Engineering, University of Houston, Houston, TX, 77004, USA
| | - Hang N Nguyen
- Department of Civil and Environmental Engineering, University of Houston, Houston, TX, 77004, USA
| | - Amy O Zheng
- Department of Chemical and Biomolecular Engineering and Department of Molecular Physiology and Biophysics, Vanderbilt University, Nashville, TN, 37235-1604, USA
| | - Luciana Jandelli Gimenes
- Center for Environmental Research and Training, University of São Paulo, Cubatão, São Paulo, 11.540 -990, Brazil
| | - Saskia Bindschedller
- Laboratory of Microbiology, Institute of Biology, University of Neuchâtel, CH-2000, Neuchâtel, Switzerland
| | - Debora F Rodrigues
- Department of Civil and Environmental Engineering, University of Houston, Houston, TX, 77004, USA
| | - James H Werner
- Center of Integrated Nanotechnologies, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA
| | - Jamey D Young
- Department of Chemical and Biomolecular Engineering and Department of Molecular Physiology and Biophysics, Vanderbilt University, Nashville, TN, 37235-1604, USA
| | - Pilar Junier
- Laboratory of Microbiology, Institute of Biology, University of Neuchâtel, CH-2000, Neuchâtel, Switzerland
| | - Patrick S G Chain
- Biosecurity and Public Health Group, Bioscience Division, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA.
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Orlofsky E, Zabari L, Bonito G, Masaphy S. Changes in soil bacteria functional ecology associated with Morchella rufobrunnea fruiting in a natural habitat. Environ Microbiol 2021; 23:6651-6662. [PMID: 34327796 DOI: 10.1111/1462-2920.15692] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 07/23/2021] [Accepted: 07/27/2021] [Indexed: 01/04/2023]
Abstract
Morchella rufobrunnea is a saprobic edible mushroom, found in a range of ecological niches, indicating nutritional adjustment to different habitats and possible interaction with soil prokaryotic microbiome (SPM). Using the 16S rRNA gene, we examined the SPM of M. rufobrunnea that appeared in a natural habitat in Northern Israel. Three sample types were included: bare soil without mushroom, soil beneath young mushroom initials and soil beneath the mature fruiting body. Morchella rufobrunnea developmental stage was significantly associated with changes in bacterial populations (PERMANOVA, p < 0.0005). Indicator analysis with point-biserial correlation coefficient found 180 operational taxonomic units (OTU) uniquely associated with distinct stages of development. The Functional Annotation of Prokaryotic Taxonomy (FAPROTAX) database helped to infer ecological roles for indicator OTU. The functional ecological progression begins with establishment of a photoautotrophic N-fixing bacterial mat on bare soil. Pioneer heterotrophs including oligotrophs, acidifying nutrient mobilizers and nitrifiers are congruent with appearance of young M. rufobrunnea initials. Under the mature fruiting body, the population changed to saprobes, organic-N degraders, denitrifiers, insect endosymbionts and fungal antagonists. Based on this work, M. rufobrunnea may be able to influence SPM and change the soil nutritional profile.
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Affiliation(s)
- Ezra Orlofsky
- Applied Mycology and Microbiology, Migal, Kiryat Shemona, 11016, Israel
| | - Limor Zabari
- Applied Mycology and Microbiology, Migal, Kiryat Shemona, 11016, Israel
| | - Gregory Bonito
- Department of Plant, Soil and Microbial Sciences, Michigan State University, East Lansing, MI, 48824, USA
| | - Segula Masaphy
- Applied Mycology and Microbiology, Migal, Kiryat Shemona, 11016, Israel.,Tel Hai Academic College, Kiryat Shemona, 12210, Israel
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Abstract
True morels (Morchella spp., Morchellaceae, Ascomycota) are widely regarded as a highly prized delicacy and are of great economic and scientific value. Recently, the rapid development of cultivation technology and expansion of areas for artificial morel cultivation have propelled morel research into a hot topic. Many studies have been conducted in various aspects of morel biology, but despite this, cultivation sites still frequently report failure to fruit or only low production of fruiting bodies. Key problems include the gap between cultivation practices and basic knowledge of morel biology. In this review, in an effort to highlight the mating systems, evolution, and life cycle of morels, we summarize the current state of knowledge of morel sexual reproduction, the structure and evolution of mating-type genes, the sexual process itself, and the influence of mating-type genes on the asexual stages and conidium production. Understanding of these processes is critical for improving technology for the cultivation of morels and for scaling up their commercial production. Morel species may well be good candidates as model species for improving sexual development research in ascomycetes in the future.
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Lü BB, Wu GG, Sun Y, Zhang LS, Wu X, Jiang W, Li P, Huang YN, Wang JB, Zhao YC, Liu H, Song LL, Mo Q, Pan AH, Yang Y, Long XQ, Cui WD, Zhang C, Wang X, Tang XM. Comparative Transcriptome and Endophytic Bacterial Community Analysis of Morchella conica SH. Front Microbiol 2021; 12:682356. [PMID: 34354681 PMCID: PMC8329594 DOI: 10.3389/fmicb.2021.682356] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Accepted: 06/10/2021] [Indexed: 12/13/2022] Open
Abstract
The precious rare edible fungus Morchella conica is popular worldwide for its rich nutrition, savory flavor, and varieties of bioactive components. Due to its high commercial, nutritional, and medicinal value, it has always been a hot spot. However, the molecular mechanism and endophytic bacterial communities in M. conica were poorly understood. In this study, we sequenced, assembled, and analyzed the genome of M. conica SH. Transcriptome analysis reveals significant differences between the mycelia and fruiting body. As shown in this study, 1,329 and 2,796 genes were specifically expressed in the mycelia and fruiting body, respectively. The Gene Ontology (GO) enrichment showed that RNA polymerase II transcription activity-related genes were enriched in the mycelium-specific gene cluster, and nucleotide binding-related genes were enriched in the fruiting body-specific gene cluster. Further analysis of differentially expressed genes in different development stages resulted in finding two groups with distinct expression patterns. Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment displays that glycan degradation and ABC transporters were enriched in the group 1 with low expressed level in the mycelia, while taurine and hypotaurine metabolismand tyrosine metabolism-related genes were significantly enriched in the group 2 with high expressed level in mycelia. Moreover, a dynamic shift of bacterial communities in the developing fruiting body was detected by 16S rRNA sequencing, and co-expression analysis suggested that bacterial communities might play an important role in regulating gene expression. Taken together, our study provided a better understanding of the molecular biology of M. conica SH and direction for future research on artificial cultivation.
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Affiliation(s)
- Bei B Lü
- Biotechnology Research Institute, Key Laboratory of Agricultural Genetics and Breeding, Shanghai Academy of Agricultural Sciences, Shanghai, China
| | - Guo G Wu
- Biotechnology Research Institute, Key Laboratory of Agricultural Genetics and Breeding, Shanghai Academy of Agricultural Sciences, Shanghai, China
| | - Yu Sun
- Biotechnology Research Institute, Key Laboratory of Agricultural Genetics and Breeding, Shanghai Academy of Agricultural Sciences, Shanghai, China
| | - Liang S Zhang
- Institute of Agriculture and Biotechnology, Zhejiang University, Hangzhou, China
| | - Xiao Wu
- Biotechnology Research Institute, Key Laboratory of Agricultural Genetics and Breeding, Shanghai Academy of Agricultural Sciences, Shanghai, China
| | - Wei Jiang
- Biotechnology Research Institute, Key Laboratory of Agricultural Genetics and Breeding, Shanghai Academy of Agricultural Sciences, Shanghai, China
| | - Peng Li
- Biotechnology Research Institute, Key Laboratory of Agricultural Genetics and Breeding, Shanghai Academy of Agricultural Sciences, Shanghai, China
| | - Yan N Huang
- Biotechnology Research Institute, Key Laboratory of Agricultural Genetics and Breeding, Shanghai Academy of Agricultural Sciences, Shanghai, China
| | - Jin B Wang
- Biotechnology Research Institute, Key Laboratory of Agricultural Genetics and Breeding, Shanghai Academy of Agricultural Sciences, Shanghai, China
| | - Yong C Zhao
- Institute of Edible Fungi, Yunnan Academy of Agricultural Sciences, Yunnan, China
| | - Hua Liu
- Biotechnology Research Institute, Key Laboratory of Agricultural Genetics and Breeding, Shanghai Academy of Agricultural Sciences, Shanghai, China
| | - Li L Song
- Biotechnology Research Institute, Key Laboratory of Agricultural Genetics and Breeding, Shanghai Academy of Agricultural Sciences, Shanghai, China
| | - Qin Mo
- Biotechnology Research Institute, Key Laboratory of Agricultural Genetics and Breeding, Shanghai Academy of Agricultural Sciences, Shanghai, China
| | - Ai H Pan
- Biotechnology Research Institute, Key Laboratory of Agricultural Genetics and Breeding, Shanghai Academy of Agricultural Sciences, Shanghai, China
| | - Yan Yang
- Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, Shanghai, China
| | - Xuan Q Long
- Institute of Microbiology, Xinjiang Academy of Agricultural Sciences, Ürümqi, China
| | - Wei D Cui
- Institute of Microbiology, Xinjiang Academy of Agricultural Sciences, Ürümqi, China
| | - Chao Zhang
- Translational Medical Center for Stem Cell Therapy and Institute for Regenerative Medicine, Shanghai East Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, China
| | - Xu Wang
- Department of Pathobiology, Auburn University, Auburn, AL, United States.,HudsonAlpha Institute for Biotechnology, Huntsville, AL, United States
| | - Xue M Tang
- Biotechnology Research Institute, Key Laboratory of Agricultural Genetics and Breeding, Shanghai Academy of Agricultural Sciences, Shanghai, China
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Tan H, Yu Y, Tang J, Liu T, Miao R, Huang Z, Martin FM, Peng W. Build Your Own Mushroom Soil: Microbiota Succession and Nutritional Accumulation in Semi-Synthetic Substratum Drive the Fructification of a Soil-Saprotrophic Morel. Front Microbiol 2021; 12:656656. [PMID: 34108948 PMCID: PMC8180906 DOI: 10.3389/fmicb.2021.656656] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Accepted: 03/29/2021] [Indexed: 12/16/2022] Open
Abstract
Black morel, a widely prized culinary delicacy, was once an uncultivable soil-saprotrophic ascomycete mushroom that can now be cultivated routinely in farmland soils. It acquires carbon nutrients from an aboveground nutritional supplementation, while it remains unknown how the morel mycelium together with associated microbiota in the substratum metabolizes and accumulates specific nutrients to support the fructification. In this study, a semi-synthetic substratum of quartz particles mixed with compost was used as a replacement and mimic of the soil. Two types of composts (C1 and C2) were used, respectively, plus a bare-quartz substratum (NC) as a blank reference. Microbiota succession, substrate transformation as well as the activity level of key enzymes were compared between the three types of substrata that produced quite divergent yields of morel fruiting bodies. The C1 substratum, with the highest yield, possessed higher abundances of Actinobacteria and Chloroflexi. In comparison with C2 and NC, the microbiota in C1 could limit over-expansion of microorganisms harboring N-fixing genes, such as Cyanobacteria, during the fructification period. Driven by the microbiota, the C1 substratum had advantages in accumulating lipids to supply morel fructification and maintaining appropriate forms of nitrogenous substances. Our findings contribute to an increasingly detailed portrait of microbial ecological mechanisms triggering morel fructification.
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Affiliation(s)
- Hao Tan
- National-Local Joint Engineering Laboratory of Breeding and Cultivation of Edible and Medicinal Fungi, Mushroom Research Center, Soil and Fertilizer Institute, Sichuan Academy of Agricultural Sciences, Chengdu, China
- School of Life Sciences, Jiangnan University, Wuxi, China
- Scientific Observing and Experimental Station of Agro-Microbial Resource and Utilization in Southwest China, Ministry of Agriculture and Rural Affairs, Chengdu, China
| | - Yang Yu
- National-Local Joint Engineering Laboratory of Breeding and Cultivation of Edible and Medicinal Fungi, Mushroom Research Center, Soil and Fertilizer Institute, Sichuan Academy of Agricultural Sciences, Chengdu, China
- Scientific Observing and Experimental Station of Agro-Microbial Resource and Utilization in Southwest China, Ministry of Agriculture and Rural Affairs, Chengdu, China
| | - Jie Tang
- National-Local Joint Engineering Laboratory of Breeding and Cultivation of Edible and Medicinal Fungi, Mushroom Research Center, Soil and Fertilizer Institute, Sichuan Academy of Agricultural Sciences, Chengdu, China
- Scientific Observing and Experimental Station of Agro-Microbial Resource and Utilization in Southwest China, Ministry of Agriculture and Rural Affairs, Chengdu, China
| | - Tianhai Liu
- National-Local Joint Engineering Laboratory of Breeding and Cultivation of Edible and Medicinal Fungi, Mushroom Research Center, Soil and Fertilizer Institute, Sichuan Academy of Agricultural Sciences, Chengdu, China
- Scientific Observing and Experimental Station of Agro-Microbial Resource and Utilization in Southwest China, Ministry of Agriculture and Rural Affairs, Chengdu, China
| | - Renyun Miao
- National-Local Joint Engineering Laboratory of Breeding and Cultivation of Edible and Medicinal Fungi, Mushroom Research Center, Soil and Fertilizer Institute, Sichuan Academy of Agricultural Sciences, Chengdu, China
- Scientific Observing and Experimental Station of Agro-Microbial Resource and Utilization in Southwest China, Ministry of Agriculture and Rural Affairs, Chengdu, China
| | - Zhongqian Huang
- National-Local Joint Engineering Laboratory of Breeding and Cultivation of Edible and Medicinal Fungi, Mushroom Research Center, Soil and Fertilizer Institute, Sichuan Academy of Agricultural Sciences, Chengdu, China
- Scientific Observing and Experimental Station of Agro-Microbial Resource and Utilization in Southwest China, Ministry of Agriculture and Rural Affairs, Chengdu, China
| | - Francis M. Martin
- Université de Lorraine, INRAE, UMR Interactions Arbres/Microorganismes, Centre INRAE Grand Est-Nancy, Champenoux, France
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, Beijing Forestry University, Beijing, China
| | - Weihong Peng
- National-Local Joint Engineering Laboratory of Breeding and Cultivation of Edible and Medicinal Fungi, Mushroom Research Center, Soil and Fertilizer Institute, Sichuan Academy of Agricultural Sciences, Chengdu, China
- Scientific Observing and Experimental Station of Agro-Microbial Resource and Utilization in Southwest China, Ministry of Agriculture and Rural Affairs, Chengdu, China
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Gwenzi W, Tagwireyi C, Musiyiwa K, Chipurura B, Nyamangara J, Sanganyado E, Chaukura N. Occurrence, behavior, and human exposure and health risks of potentially toxic elements in edible mushrooms with focus on Africa. ENVIRONMENTAL MONITORING AND ASSESSMENT 2021; 193:302. [PMID: 33900454 DOI: 10.1007/s10661-021-09042-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Accepted: 04/04/2021] [Indexed: 06/12/2023]
Abstract
Understanding the occurrence, behavior, and fate of potentially toxic elements (PTEs) in the substrate-mushroom-human nexus is critical for assessing and mitigating their human health risks. In this review, we (1) summarized the nature, sources, and biogeochemical behavior of PTEs in the substrate-mushroom systems; (2) discussed the occurrence, exposure, and human health risks of PTEs in mushrooms with emphasis on African geological hotspots such as metalliferous and highly mineralized substrates; (3) developed a 10-step conceptual framework for identifying, assessing, and mitigating the human health risks of PTEs in mushrooms, and highlight future directions. High human exposure risks potentially exist in Africa due to the following: (1) widespread consumption of mushrooms from various metalliferrous and highly mineralized substrates such as serpentines and mine waste dumps, (2) inadequate and poorly enforced environmental health and food safety regulations and policies, (3) limited environmental and human health monitoring data, and (4) potential synergistic interactions among PTEs in mushrooms and human health stressors such as a high burden of human diseases and infections. Although the human health effects of individual PTEs are well known, scientific evidence linking human health risk to PTEs in mushrooms remains weak. A framework for risk assessment and mitigation, and future research directions are recommended.
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Affiliation(s)
- Willis Gwenzi
- Biosystems and Environmental Engineering Research Group, Department of Soil Science and Agricultural Engineering, University of Zimbabwe, P.O. Box MP167, Mt. Pleasant, Harare, Zimbabwe.
| | - Caroline Tagwireyi
- Formerly with Environmental Sciences Institute, Scientific & Industrial Research & Development Centre, Alpes Road/Technology Drive, Hatcliffe, P. O. Box 6640, Harare, Zimbabwe
| | - Kumbirai Musiyiwa
- Department of Crop Science and Post-Harvest Technology, School of Agricultural Sciences, Chinhoyi University of Technology, Private Bag 7724, Chinhoyi, Zimbabwe
| | - Batsirai Chipurura
- Department of Food, Nutrition and Family Sciences, University of Zimbabwe, P.O. Box MP167, Mt. Pleasant, Harare, Zimbabwe
| | - Justice Nyamangara
- Department of Environmental Science and Technology, Marondera University of Agricultural Science and Technology, P. O. Box 35,, Marondera, Zimbabwe
| | - Edmond Sanganyado
- Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou, Guangdong Province, China
| | - Nhamo Chaukura
- Department of Physical and Earth Sciences, Sol Plaatje University, Kimberley, South Africa.
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38
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Liu D, He X, Chater CCC, Perez-Moreno J, Yu F. Microbiome Community Structure and Functional Gene Partitioning in Different Micro-Niches Within a Sporocarp-Forming Fungus. Front Microbiol 2021; 12:629352. [PMID: 33859628 PMCID: PMC8042227 DOI: 10.3389/fmicb.2021.629352] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Accepted: 03/10/2021] [Indexed: 02/03/2023] Open
Abstract
Thelephora ganbajun is a wild edible mushroom highly appreciated throughout China. The microbiomes of some fungal sporocarps have been studied, however, their potential functional roles currently remain uncharacterized. Here, functional gene microarrays (GeoChip 5.0) and amplicon sequencing were employed to define the taxonomic and functional attributes within three micro-niches of T. ganbajun. The diversity and composition of bacterial taxa and their functional genes differed significantly (p < 0.01) among the compartments. Among 31,117 functional genes detected, some were exclusively recorded in one sporocarp compartment: 1,334 genes involved in carbon (mdh) and nitrogen fixation (nifH) in the context; 524 genes influencing carbon (apu) and sulfite reduction (dsrB, dsra) in the hymenophore; and 255 genes involved in sulfur oxidation (soxB and soxC) and polyphosphate degradation (ppx) in the pileipellis. These results shed light on a previously unknown microbiome and functional gene partitioning in sporome compartments of Basidiomycota. This also has great implications for their potential ecological and biogeochemical functions, demonstrating a higher genomic complexity than previously thought.
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Affiliation(s)
- Dong Liu
- The Germplasm Bank of Wild Species, Yunnan Key Laboratory for Fungal Diversity and Green Development, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
| | - Xinhua He
- The Germplasm Bank of Wild Species, Yunnan Key Laboratory for Fungal Diversity and Green Development, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
- Department of Land, Air and Water Resources, University of California, Davis, Davis, CA, United States
| | - Caspar C. C. Chater
- Department of Natural Capital and Plant Health, Royal Botanic Gardens, Kew, Richmond, United Kingdom
| | | | - Fuqiang Yu
- The Germplasm Bank of Wild Species, Yunnan Key Laboratory for Fungal Diversity and Green Development, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
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Gohar D, Pent M, Põldmaa K, Bahram M. Bacterial community dynamics across developmental stages of fungal fruiting bodies. FEMS Microbiol Ecol 2021; 96:5894922. [PMID: 32816035 DOI: 10.1093/femsec/fiaa175] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Accepted: 08/18/2020] [Indexed: 12/30/2022] Open
Abstract
Increasing evidence suggest that bacteria form diverse communities in various eukaryotic hosts, including fungi. However, little is known about their succession and the functional potential at different host development stages. Here we examined the effect of fruiting body parts and developmental stages on the structure and potential function of fungus-associated bacterial communities. Using high-throughput sequencing, we characterized bacterial communities and their associated potential functions in fruiting bodies from ten genera belonging to four major mushroom-forming orders and three different developmental stages of a model host species Cantharellus cibarius. Our results demonstrate that bacterial community structure differs between internal and external parts of the fruiting body but not between inner tissues. The structure of the bacterial communities showed significant variation across fruiting body developmental stages. We provide evidence that certain functional groups, such as those related to nitrogen fixation, persist in fruiting bodies during the maturation, but are replaced by putative parasites/pathogens afterwards. These data suggest that bacterial communities inhabiting fungal fruiting bodies may play important roles in their growth and development.
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Affiliation(s)
- Daniyal Gohar
- Institute of Ecology and Earth Sciences, University of Tartu, 14a Ravila, 50411, Tartu, Estonia
| | - Mari Pent
- Institute of Ecology and Earth Sciences, University of Tartu, 14a Ravila, 50411, Tartu, Estonia
| | - Kadri Põldmaa
- Institute of Ecology and Earth Sciences, University of Tartu, 14a Ravila, 50411, Tartu, Estonia
| | - Mohammad Bahram
- Department of Ecology, Swedish University of Agricultural Sciences, Ulls väg 16, 756 51, Uppsala, Sweden
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Benucci GMN, Rennick B, Bonito G. Patient propagules: Do soil archives preserve the legacy of fungal and prokaryotic communities? PLoS One 2020; 15:e0237368. [PMID: 32780777 PMCID: PMC7418970 DOI: 10.1371/journal.pone.0237368] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Accepted: 07/23/2020] [Indexed: 01/09/2023] Open
Abstract
Soil archives are an important resource in agronomic and ecosystem sciences. If microbial communities could be reconstructed from archived soil DNA, as prehistoric plant communities are reconstructed via pollen data, soil archive resources would assume even greater value for reconstructing land-use history, forensic science, and biosphere modelling. Yet, the effects of long-term soil archival on the preservation of microbial DNA is still largely unknown. To address this, we assessed the capacity of high-throughput sequencing (Illumina MiSeq) of ITS (internal transcribed spacer) and prokaryotic 16S rRNA genes for reconstructing soil microbial communities across a 20 years time-series. We studied air-dried soil archives and fresh soil samples taken from Populus bioenergy and deciduous forest research plots at the Kellogg Biological Station. Habitat and archival time explained significant amounts of variation in soil microbial α- and β-diversity both in fungal and prokaryotic communities. We found that microbial richness, diversity, and abundance generally decreased with storage time, but varied between habitat and taxonomic groups. The high relative abundance of ectomycorrhizal species including Hebeloma and Cortinarius detected in older soil archives raises questions regarding traits such as long-term persistence and viability of ectomycorrhizal propagules in soils, with relevance to forest health and ecosystem succession. Talaromyces, Paecilomyces and Epicoccum spp. were detected in fresh and across 20-year-old archived soils and were also cultured from these soils demonstrating their long-term spore viability. In summary, we found that microbial DNA in air-dried soils archived over the past 20 years degraded with time, in a manner that differed between soil types and phylogenetic groups of microbes.
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Affiliation(s)
- Gian Maria Niccolò Benucci
- Plant, Soil and Microbial Science Department, Michigan State University, East Lansing, MI, United States of America
- Great Lakes Bioenergy Research Center, Michigan State University, East Lansing, MI, United States of America
- * E-mail:
| | - Bryan Rennick
- Plant, Soil and Microbial Science Department, Michigan State University, East Lansing, MI, United States of America
| | - Gregory Bonito
- Plant, Soil and Microbial Science Department, Michigan State University, East Lansing, MI, United States of America
- Great Lakes Bioenergy Research Center, Michigan State University, East Lansing, MI, United States of America
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Longley R, Noel ZA, Benucci GMN, Chilvers MI, Trail F, Bonito G. Crop Management Impacts the Soybean ( Glycine max) Microbiome. Front Microbiol 2020; 11:1116. [PMID: 32582080 PMCID: PMC7283522 DOI: 10.3389/fmicb.2020.01116] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Accepted: 05/04/2020] [Indexed: 12/21/2022] Open
Abstract
Soybean (Glycine max) is an important leguminous crop that is grown throughout the United States and around the world. In 2016, soybean was valued at $41 billion USD in the United States alone. Increasingly, soybean farmers are adopting alternative management strategies to improve the sustainability and profitability of their crop. Various benefits have been demonstrated for alternative management systems, but their effects on soybean-associated microbial communities are not well-understood. In order to better understand the impact of crop management systems on the soybean-associated microbiome, we employed DNA amplicon sequencing of the Internal Transcribed Spacer (ITS) region and 16S rRNA genes to analyze fungal and prokaryotic communities associated with soil, roots, stems, and leaves. Soybean plants were sampled from replicated fields under long-term conventional, no-till, and organic management systems at three time points throughout the growing season. Results indicated that sample origin was the main driver of beta diversity in soybean-associated microbial communities, but management regime and plant growth stage were also significant factors. Similarly, differences in alpha diversity are driven by compartment and sample origin. Overall, the organic management system had lower fungal and bacterial Shannon diversity. In prokaryotic communities, aboveground tissues were dominated by Sphingomonas and Methylobacterium while belowground samples were dominated by Bradyrhizobium and Sphingomonas. Aboveground fungal communities were dominated by Davidiella across all management systems, while belowground samples were dominated by Fusarium and Mortierella. Specific taxa including potential plant beneficials such as Mortierella were indicator species of the conventional and organic management systems. No-till management increased the abundance of groups known to contain plant beneficial organisms such as Bradyrhizobium and Glomeromycotina. Network analyses show different highly connected hub taxa were present in each management system. Overall, this research demonstrates how specific long-term cropping management systems alter microbial communities and how those communities change throughout the growth of soybean.
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Affiliation(s)
- Reid Longley
- Department of Microbiology and Molecular Genetics, Michigan State University, East Lansing, MI, United States
| | - Zachary A Noel
- Department of Plant, Soil and Microbial Sciences, Michigan State University, East Lansing, MI, United States
| | - Gian Maria Niccolò Benucci
- Department of Plant, Soil and Microbial Sciences, Michigan State University, East Lansing, MI, United States
| | - Martin I Chilvers
- Department of Plant, Soil and Microbial Sciences, Michigan State University, East Lansing, MI, United States.,Genetics and Genomic Sciences Program, Michigan State University, East Lansing, MI, United States
| | - Frances Trail
- Department of Plant, Soil and Microbial Sciences, Michigan State University, East Lansing, MI, United States.,Department of Plant Biology, Michigan State University, East Lansing, MI, United States
| | - Gregory Bonito
- Department of Microbiology and Molecular Genetics, Michigan State University, East Lansing, MI, United States.,Department of Plant, Soil and Microbial Sciences, Michigan State University, East Lansing, MI, United States
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