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Pan J, Zhang J, Wei H, Liu Q, Xu W, Bao Y. Optimizing mycelial protein yield in Pleurotus djamor via ARTP mutagenesis and hybridization strategies. J Biotechnol 2024; 386:64-71. [PMID: 38519035 DOI: 10.1016/j.jbiotec.2024.03.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 03/02/2024] [Accepted: 03/19/2024] [Indexed: 03/24/2024]
Abstract
With the world's population rapidly increasing, the demand for high-quality protein is on the rise. Edible fungi breeding technology stands as a crucial avenue to obtain strains with high yield, high-quality protein, and robust stress resistance. To address the protein supply gap, Atmospheric and Room Temperature Plasma (ARTP) mutagenesis, and spore hybridization techniques were employed to enhance Pleurotus djamor mycelium protein production. Beginning with the original strain Pleurotus djamor JD-1, ARTP was utilized to mutate spore suspension. The optimal treatment time for Pleurotus djamor spores, determined to achieve optimal mortality, was 240 s. Through primary and secondary screenings, 6 mutant strains out of 39 were selected, exhibiting improved protein yield and growth rates compared to the original strain. Among these mutagenic strains, 240S-4 showcased the highest performance, with a mycelial growth rate of 9.5±0.71 mm/d, a biomass of 21.45±0.54 g/L, a protein content of 28.75±0.92%, and a remarkable protein promotion rate of 128.03±7.29%. Additionally, employing spore hybridization and breeding, 7 single-nuclei strains were selected for pin-two hybridization, resulting in 21 hybrid strains. The biomass and protein content of 9 hybrid strains surpassed those of the original strains. One hybrid strain, H-5, exhibited remarkable mycelial protein production, boasting a mycelial growth rate of 26.5±0.7 mm/d, a biomass of 21.70±0.46 g/L, a protein content of 28.44±0.22%, and a protein promotion rate of 128.02±1.73%. Notably, both strains demonstrated about a 28% higher mycelial protein yield than the original strains, indicating comparable effectiveness between hybrid breeding and mutagenesis breeding. Finally, we analyzed the original and selected strains by molecular biological identification, which further proved the effectiveness of the breeding method. These findings present novel insights and serve as a reference for enhancing edible fungi breeding, offering promising avenues to meet the escalating protein demand.
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Affiliation(s)
- Jing Pan
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang 212100, China
| | - Jian Zhang
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang 212100, China.
| | - Hefen Wei
- Nanjing Hi-Tech Biological Technology Research Institute Co.,Ltd., Nanjing 211800, China
| | - Qingguo Liu
- Nanjing Hi-Tech Biological Technology Research Institute Co.,Ltd., Nanjing 211800, China
| | - Wenhui Xu
- Nanjing Hi-Tech Biological Technology Research Institute Co.,Ltd., Nanjing 211800, China
| | - Yunhui Bao
- College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China.
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2
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Duran K, Kohlstedt M, van Erven G, Klostermann CE, America AHP, Bakx E, Baars JJP, Gorissen A, de Visser R, de Vries RP, Wittmann C, Comans RNJ, Kuyper TW, Kabel MA. From 13C-lignin to 13C-mycelium: Agaricus bisporus uses polymeric lignin as a carbon source. SCIENCE ADVANCES 2024; 10:eadl3419. [PMID: 38640242 PMCID: PMC11029805 DOI: 10.1126/sciadv.adl3419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Accepted: 03/19/2024] [Indexed: 04/21/2024]
Abstract
Plant biomass conversion by saprotrophic fungi plays a pivotal role in terrestrial carbon (C) cycling. The general consensus is that fungi metabolize carbohydrates, while lignin is only degraded and mineralized to CO2. Recent research, however, demonstrated fungal conversion of 13C-monoaromatic compounds into proteinogenic amino acids. To unambiguously prove that polymeric lignin is not merely degraded, but also metabolized, carefully isolated 13C-labeled lignin served as substrate for Agaricus bisporus, the world's most consumed mushroom. The fungus formed a dense mycelial network, secreted lignin-active enzymes, depolymerized, and removed lignin. With a lignin carbon use efficiency of 0.14 (g/g) and fungal biomass enrichment in 13C, we demonstrate that A. bisporus assimilated and further metabolized lignin when offered as C-source. Amino acids were high in 13C-enrichment, while fungal-derived carbohydrates, fatty acids, and ergosterol showed traces of 13C. These results hint at lignin conversion via aromatic ring-cleaved intermediates to central metabolites, underlining lignin's metabolic value for fungi.
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Affiliation(s)
- Katharina Duran
- Laboratory of Food Chemistry, Wageningen University & Research, Bornse Weilanden 9, 6708 WG Wageningen, Netherlands
| | - Michael Kohlstedt
- Institute of Systems Biotechnology, Saarland University, Campus A 1.5, 66123 Saarbrücken, Germany
| | - Gijs van Erven
- Laboratory of Food Chemistry, Wageningen University & Research, Bornse Weilanden 9, 6708 WG Wageningen, Netherlands
- Wageningen Food and Biobased Research, Wageningen University & Research, Bornse Weilanden 9, 6708 WG Wageningen, Netherlands
| | - Cynthia E. Klostermann
- Laboratory of Food Chemistry, Wageningen University & Research, Bornse Weilanden 9, 6708 WG Wageningen, Netherlands
- Biobased Chemistry and Technology, Wageningen University & Research, Bornse Weilanden 9, 6708 WG Wageningen Netherlands
| | - Antoine H. P. America
- Bioscience, Wageningen University & Research, Droevendaalsesteeg 1, 6708 PB Wageningen, Netherlands
| | - Edwin Bakx
- Laboratory of Food Chemistry, Wageningen University & Research, Bornse Weilanden 9, 6708 WG Wageningen, Netherlands
| | - Johan J. P. Baars
- Plant Breeding, Wageningen University & Research, 6708 PB Wageningen, Netherlands
- CNC Grondstoffen, Driekronenstraat 6, 6596 MA Milsbeek, Netherlands
| | - Antonie Gorissen
- IsoLife bv, Droevendaalsesteeg 1, 6708 PB Wageningen, Netherlands
| | - Ries de Visser
- IsoLife bv, Droevendaalsesteeg 1, 6708 PB Wageningen, Netherlands
| | - Ronald P. de Vries
- Fungal Physiology, Westerdijk Fungal Biodiversity Institute & Fungal Molecular Physiology, Utrecht University, Uppsalalaan 8, 3584 CT Utrecht, Netherlands
| | - Christoph Wittmann
- Institute of Systems Biotechnology, Saarland University, Campus A 1.5, 66123 Saarbrücken, Germany
| | - Rob N. J. Comans
- Soil Chemistry and Chemical Soil Quality Group, Wageningen University & Research, Droevendaalsesteeg 3a, 6708 PB Wageningen, Netherlands
| | - Thomas W. Kuyper
- Soil Biology Group, Wageningen University & Research, Droevendaalsesteeg 3a, 6708 PB Wageningen, Netherlands
| | - Mirjam A. Kabel
- Laboratory of Food Chemistry, Wageningen University & Research, Bornse Weilanden 9, 6708 WG Wageningen, Netherlands
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3
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Yu NN, Veerana M, Ketya W, Sun HN, Park G. RNA-Seq-Based Transcriptome Analysis of Nitric Oxide Scavenging Response in Neurospora crassa. J Fungi (Basel) 2023; 9:985. [PMID: 37888241 PMCID: PMC10607626 DOI: 10.3390/jof9100985] [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: 08/15/2023] [Revised: 09/22/2023] [Accepted: 10/01/2023] [Indexed: 10/28/2023] Open
Abstract
While the biological role of naturally occurring nitric oxide (NO) in filamentous fungi has been uncovered, the underlying molecular regulatory networks remain unclear. In this study, we conducted an analysis of transcriptome profiles to investigate the initial stages of understanding these NO regulatory networks in Neurospora crassa, a well-established model filamentous fungus. Utilizing RNA sequencing, differential gene expression screening, and various functional analyses, our findings revealed that the removal of intracellular NO resulted in the differential transcription of 424 genes. Notably, the majority of these differentially expressed genes were functionally linked to processes associated with carbohydrate and amino acid metabolism. Furthermore, our analysis highlighted the prevalence of four specific protein domains (zinc finger C2H2, PLCYc, PLCXc, and SH3) in the encoded proteins of these differentially expressed genes. Through protein-protein interaction network analysis, we identified eight hub genes with substantial interaction connectivity, with mss-4 and gel-3 emerging as possibly major responsive genes during NO scavenging, particularly influencing vegetative growth. Additionally, our study unveiled that NO scavenging led to the inhibition of gene transcription related to a protein complex associated with ribosome biogenesis. Overall, our investigation suggests that endogenously produced NO in N. crassa likely governs the transcription of genes responsible for protein complexes involved in carbohydrate and amino acid metabolism, as well as ribosomal biogenesis, ultimately impacting the growth and development of hyphae.
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Affiliation(s)
- Nan-Nan Yu
- Plasma Bioscience Research Center, Department of Plasma-Bio Display, Kwangwoon University, Seoul 01897, Republic of Korea; (N.-N.Y.); (W.K.)
| | - Mayura Veerana
- Department of Applied Radiation and Isotopes, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand;
| | - Wirinthip Ketya
- Plasma Bioscience Research Center, Department of Plasma-Bio Display, Kwangwoon University, Seoul 01897, Republic of Korea; (N.-N.Y.); (W.K.)
| | - Hu-Nan Sun
- College of Life Science and Technology, Heilongjiang Bayi Agricultural University, Daqing 163319, China;
| | - Gyungsoon Park
- Plasma Bioscience Research Center, Department of Plasma-Bio Display, Kwangwoon University, Seoul 01897, Republic of Korea; (N.-N.Y.); (W.K.)
- Department of Electrical and Biological Physics, Kwangwoon University, Seoul 01897, Republic of Korea
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4
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Duran K, Magnin J, America AH, Peng M, Hilgers R, de Vries RP, Baars JJ, van Berkel WJ, Kuyper TW, Kabel MA. The secretome of Agaricus bisporus: Temporal dynamics of plant polysaccharides and lignin degradation. iScience 2023; 26:107087. [PMID: 37426348 PMCID: PMC10329178 DOI: 10.1016/j.isci.2023.107087] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 06/01/2023] [Accepted: 06/06/2023] [Indexed: 07/11/2023] Open
Abstract
Despite substantial lignocellulose conversion during mycelial growth, previous transcriptome and proteome studies have not yet revealed how secretomes from the edible mushroom Agaricus bisporus develop and whether they modify lignin models in vitro. To clarify these aspects, A. bisporus secretomes collected throughout a 15-day industrial substrate production and from axenic lab-cultures were subjected to proteomics, and tested on polysaccharides and lignin models. Secretomes (day 6-15) comprised A. bisporus endo-acting and substituent-removing glycoside hydrolases, whereas β-xylosidase and glucosidase activities gradually decreased. Laccases appeared from day 6 onwards. From day 10 onwards, many oxidoreductases were found, with numerous multicopper oxidases (MCO), aryl alcohol oxidases (AAO), glyoxal oxidases (GLOX), a manganese peroxidase (MnP), and unspecific peroxygenases (UPO). Secretomes modified dimeric lignin models, thereby catalyzing syringylglycerol-β-guaiacyl ether (SBG) cleavage, guaiacylglycerol-β-guaiacyl ether (GBG) polymerization, and non-phenolic veratrylglycerol-β-guaiacyl ether (VBG) oxidation. We explored A. bisporus secretomes and insights obtained can help to better understand biomass valorization.
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Affiliation(s)
- Katharina Duran
- Laboratory of Food Chemistry, Wageningen University & Research, Bornse Weilanden 9, 6708 WG Wageningen, the Netherlands
| | - Joris Magnin
- Laboratory of Food Chemistry, Wageningen University & Research, Bornse Weilanden 9, 6708 WG Wageningen, the Netherlands
| | - Antoine H.P. America
- Bioscience, Wageningen University & Research, Droevendaalsesteeg 1, 6708 PB Wageningen, the Netherlands
| | - Mao Peng
- Fungal Physiology, Westerdijk Fungal Biodiversity Institute & Fungal Molecular Physiology, Utrecht University, Uppsalalaan 8, 3584 CT Utrecht, the Netherlands
| | - Roelant Hilgers
- Laboratory of Food Chemistry, Wageningen University & Research, Bornse Weilanden 9, 6708 WG Wageningen, the Netherlands
| | - Ronald P. de Vries
- Fungal Physiology, Westerdijk Fungal Biodiversity Institute & Fungal Molecular Physiology, Utrecht University, Uppsalalaan 8, 3584 CT Utrecht, the Netherlands
| | - Johan J.P. Baars
- CNC Grondstoffen, Driekronenstraat 6, 6596 MA Milsbeek, the Netherlands
| | - Willem J.H. van Berkel
- Laboratory of Food Chemistry, Wageningen University & Research, Bornse Weilanden 9, 6708 WG Wageningen, the Netherlands
| | - Thomas W. Kuyper
- Soil Biology Group, Wageningen University & Research, Droevendaalsesteeg 3a, 6708 PB Wageningen, the Netherlands
| | - Mirjam A. Kabel
- Laboratory of Food Chemistry, Wageningen University & Research, Bornse Weilanden 9, 6708 WG Wageningen, the Netherlands
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5
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Nagy L, Vonk P, Künzler M, Földi C, Virágh M, Ohm R, Hennicke F, Bálint B, Csernetics Á, Hegedüs B, Hou Z, Liu X, Nan S, Pareek M, Sahu N, Szathmári B, Varga T, Wu H, Yang X, Merényi Z. Lessons on fruiting body morphogenesis from genomes and transcriptomes of Agaricomycetes. Stud Mycol 2023; 104:1-85. [PMID: 37351542 PMCID: PMC10282164 DOI: 10.3114/sim.2022.104.01] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Accepted: 12/02/2022] [Indexed: 01/09/2024] Open
Abstract
Fruiting bodies (sporocarps, sporophores or basidiomata) of mushroom-forming fungi (Agaricomycetes) are among the most complex structures produced by fungi. Unlike vegetative hyphae, fruiting bodies grow determinately and follow a genetically encoded developmental program that orchestrates their growth, tissue differentiation and sexual sporulation. In spite of more than a century of research, our understanding of the molecular details of fruiting body morphogenesis is still limited and a general synthesis on the genetics of this complex process is lacking. In this paper, we aim at a comprehensive identification of conserved genes related to fruiting body morphogenesis and distil novel functional hypotheses for functionally poorly characterised ones. As a result of this analysis, we report 921 conserved developmentally expressed gene families, only a few dozens of which have previously been reported to be involved in fruiting body development. Based on literature data, conserved expression patterns and functional annotations, we provide hypotheses on the potential role of these gene families in fruiting body development, yielding the most complete description of molecular processes in fruiting body morphogenesis to date. We discuss genes related to the initiation of fruiting, differentiation, growth, cell surface and cell wall, defence, transcriptional regulation as well as signal transduction. Based on these data we derive a general model of fruiting body development, which includes an early, proliferative phase that is mostly concerned with laying out the mushroom body plan (via cell division and differentiation), and a second phase of growth via cell expansion as well as meiotic events and sporulation. Altogether, our discussions cover 1 480 genes of Coprinopsis cinerea, and their orthologs in Agaricus bisporus, Cyclocybe aegerita, Armillaria ostoyae, Auriculariopsis ampla, Laccaria bicolor, Lentinula edodes, Lentinus tigrinus, Mycena kentingensis, Phanerochaete chrysosporium, Pleurotus ostreatus, and Schizophyllum commune, providing functional hypotheses for ~10 % of genes in the genomes of these species. Although experimental evidence for the role of these genes will need to be established in the future, our data provide a roadmap for guiding functional analyses of fruiting related genes in the Agaricomycetes. We anticipate that the gene compendium presented here, combined with developments in functional genomics approaches will contribute to uncovering the genetic bases of one of the most spectacular multicellular developmental processes in fungi. Citation: Nagy LG, Vonk PJ, Künzler M, Földi C, Virágh M, Ohm RA, Hennicke F, Bálint B, Csernetics Á, Hegedüs B, Hou Z, Liu XB, Nan S, M. Pareek M, Sahu N, Szathmári B, Varga T, Wu W, Yang X, Merényi Z (2023). Lessons on fruiting body morphogenesis from genomes and transcriptomes of Agaricomycetes. Studies in Mycology 104: 1-85. doi: 10.3114/sim.2022.104.01.
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Affiliation(s)
- L.G. Nagy
- Synthetic and Systems Biology Unit, Biological Research Center, Szeged, 6726, Hungary;
| | - P.J. Vonk
- Microbiology, Department of Biology, Faculty of Science, Utrecht University, Padualaan 8, 3584 CH, Utrecht, The Netherlands;
| | - M. Künzler
- Institute of Microbiology, Department of Biology, Eidgenössische Technische Hochschule (ETH) Zürich, Zürich, Switzerland;
| | - C. Földi
- Synthetic and Systems Biology Unit, Biological Research Center, Szeged, 6726, Hungary;
| | - M. Virágh
- Synthetic and Systems Biology Unit, Biological Research Center, Szeged, 6726, Hungary;
| | - R.A. Ohm
- Microbiology, Department of Biology, Faculty of Science, Utrecht University, Padualaan 8, 3584 CH, Utrecht, The Netherlands;
| | - F. Hennicke
- Project Group Genetics and Genomics of Fungi, Chair Evolution of Plants and Fungi, Ruhr-University Bochum, 44780, Bochum, North Rhine-Westphalia, Germany;
| | - B. Bálint
- Synthetic and Systems Biology Unit, Biological Research Center, Szeged, 6726, Hungary;
| | - Á. Csernetics
- Synthetic and Systems Biology Unit, Biological Research Center, Szeged, 6726, Hungary;
| | - B. Hegedüs
- Synthetic and Systems Biology Unit, Biological Research Center, Szeged, 6726, Hungary;
| | - Z. Hou
- Synthetic and Systems Biology Unit, Biological Research Center, Szeged, 6726, Hungary;
| | - X.B. Liu
- Synthetic and Systems Biology Unit, Biological Research Center, Szeged, 6726, Hungary;
| | - S. Nan
- Institute of Applied Mycology, Huazhong Agricultural University, 430070 Hubei Province, PR China
| | - M. Pareek
- Synthetic and Systems Biology Unit, Biological Research Center, Szeged, 6726, Hungary;
| | - N. Sahu
- Synthetic and Systems Biology Unit, Biological Research Center, Szeged, 6726, Hungary;
| | - B. Szathmári
- Synthetic and Systems Biology Unit, Biological Research Center, Szeged, 6726, Hungary;
| | - T. Varga
- Synthetic and Systems Biology Unit, Biological Research Center, Szeged, 6726, Hungary;
| | - H. Wu
- Synthetic and Systems Biology Unit, Biological Research Center, Szeged, 6726, Hungary;
| | - X. Yang
- Institute of Applied Mycology, Huazhong Agricultural University, 430070 Hubei Province, PR China
| | - Z. Merényi
- Synthetic and Systems Biology Unit, Biological Research Center, Szeged, 6726, Hungary;
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6
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Chang W, Feng W, Yang Y, Shen Y, Song T, Li Y, Cai W. Metagenomics analysis of the effects of Agaricus bisporus mycelia on microbial diversity and CAZymes in compost. PeerJ 2022; 10:e14426. [PMID: 36523457 PMCID: PMC9745911 DOI: 10.7717/peerj.14426] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Accepted: 10/30/2022] [Indexed: 12/13/2022] Open
Abstract
Agaricus bisporus growth alters the lignocellulosic composition and structure of compost. However, it is difficult to differentiate the enzyme activities of A. bisporus mycelia from the wider microbial community owing to the complication of completely speareting the mycelia from compost cultures. Macrogenomics analysis was employed in this study to examine the fermentation substrate of A. bisporus before and after mycelial growth, and the molecular mechanism of substrate utilization by A. bisporus mycelia was elucidated from the perspective of microbial communities and CAZymes in the substrate. The results showed that the relative abundance of A. bisporus mycelia increased by 77.57-fold after mycelial colonization, the laccase content was significantly increased and the lignin content was significantly decreased. Analysis of the CAZymes showed that AA10 family was extremely differentiated. Laccase-producing strains associated with AA10 family were mostly bacteria belonging to Thermobifida and Thermostaphylospora, suggesting that these bacteria may play a synergistic role in lignin decomposition along with A. bisporus mycelia. These findings provide preliminary evidence for the molecular mechanism of compost utilization by A. bisporus mycelia and offer a reference for the development and utilization of strains related to lignocellulose degradation.
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Affiliation(s)
- Wanqiu Chang
- Jilin Agricultural University, Engineering Research Centre of Chinese Ministry of Education for Edible and Medicinal Fungi, Changchun, Jilin, China,Zhejiang Academy of Agricultural Sciences, Institute of Horticulture, Hangzhou, Zhejiang, China
| | - Weilin Feng
- Zhejiang Academy of Agricultural Sciences, Institute of Horticulture, Hangzhou, Zhejiang, China
| | - Yang Yang
- Chinese Academy of Tropical Agricultural Sciences, Environment and Plant Protection Institute, Haikou, Hainan, China
| | - Yingyue Shen
- Zhejiang Academy of Agricultural Sciences, Institute of Horticulture, Hangzhou, Zhejiang, China
| | - Tingting Song
- Zhejiang Academy of Agricultural Sciences, Institute of Horticulture, Hangzhou, Zhejiang, China
| | - Yu Li
- Jilin Agricultural University, Engineering Research Centre of Chinese Ministry of Education for Edible and Medicinal Fungi, Changchun, Jilin, China
| | - Weiming Cai
- Zhejiang Academy of Agricultural Sciences, Institute of Horticulture, Hangzhou, Zhejiang, China
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7
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Hao H, Zhang J, Wang Q, Huang J, Juan J, Kuai B, Feng Z, Chen H. Transcriptome and Differentially Expressed Gene Profiles in Mycelium, Primordium and Fruiting Body Development in Stropharia rugosoannulata. Genes (Basel) 2022; 13:genes13061080. [PMID: 35741841 PMCID: PMC9222559 DOI: 10.3390/genes13061080] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 06/07/2022] [Accepted: 06/14/2022] [Indexed: 11/16/2022] Open
Abstract
Stropharia rugosoannulata uses straw as a growth substrate during artificial cultivation and has been widely promoted in China. However, its fruiting body formation and development processes have not been elucidated. In this study, the developmental transcriptomes were analyzed at three stages: the mycelium (G-S), primordium (P-S) and fruiting body (M-F) stages. A total of 9690 differentially expressed genes (DEGs) were identified in the different developmental stages. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analyses showed that these DEGs were involved mainly in hydrolase activity, structural molecule activity and oxidoreductase activity as well as xenobiotic biodegradation and metabolism and energy metabolism pathways. We further found that the higher expression of most carbohydrate enzyme (i.e., GH, CE, CBM, AA and PL) genes in the hyphal (i.e., G-S) stage was related mainly to substrate degradation, while the upregulation of glycosyltransferase (GT) gene expression in the P-S and M-F stages may be related to cell wall synthesis. In addition, we found that CO2-sensing-related genes (i.e., CA-2, CA-3, PKA-1 and PKA-2) were upregulated in the P-S and M-F stages, heat shock protein genes (HSP60 and HSP90) were significantly downregulated in the P-S stage and upregulated in the M-F stage and the transcription factors (i.e., steA, MYB, nosA, HAP1, and GATA-4/5/6) involved in growth and development were significantly upregulated in the P-S stage. These results suggest that environmental factors (i.e., CO2 and temperature) and transcription factors may play a key role in primordium formation. In short, this study provides new insights into the study of stimulating primordia formation affecting the development of fruiting bodies of S. rugosoannulata.
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Affiliation(s)
- 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 201403, China; (H.H.); (Q.W.); (J.H.); (J.J.); (Z.F.)
- 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 200438, 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 201403, China; (H.H.); (Q.W.); (J.H.); (J.J.); (Z.F.)
- College of Life Science, Nanjing Agricultural University, Nanjing 210095, China
- Correspondence: (J.Z.); (H.C.)
| | - 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 201403, China; (H.H.); (Q.W.); (J.H.); (J.J.); (Z.F.)
| | - Jianchun Huang
- 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 201403, China; (H.H.); (Q.W.); (J.H.); (J.J.); (Z.F.)
| | - Jiaxiang Juan
- 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 201403, China; (H.H.); (Q.W.); (J.H.); (J.J.); (Z.F.)
| | - Benke Kuai
- 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 200438, China;
| | - Zhiyong Feng
- 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 201403, China; (H.H.); (Q.W.); (J.H.); (J.J.); (Z.F.)
- College of Life Science, Nanjing Agricultural University, Nanjing 210095, 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 201403, China; (H.H.); (Q.W.); (J.H.); (J.J.); (Z.F.)
- Correspondence: (J.Z.); (H.C.)
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8
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Jabłońska-Ryś E, Sławińska A, Skrzypczak K, Goral K. Dynamics of Changes in pH and the Contents of Free Sugars, Organic Acids and LAB in Button Mushrooms during Controlled Lactic Fermentation. Foods 2022; 11:1553. [PMID: 35681303 PMCID: PMC9180291 DOI: 10.3390/foods11111553] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 05/23/2022] [Accepted: 05/24/2022] [Indexed: 02/01/2023] Open
Abstract
The aim of the study was to assess changes in the basic quality parameters induced by controlled lactic fermentation of fruiting bodies of the button mushroom (Agaricus bisporus). Lactiplantibacillus plantarum 299v with documented probiotic properties and L. plantarum EK3, i.e., an isolate obtained from spontaneously fermented button mushrooms, were used as starter strains. The fruiting bodies of fresh, blanched, and fermented mushrooms were analyzed at different stages of the lactic fermentation process. The content of free sugars (high-performance liquid chromatography with charged aerosol detector method; HPLC-CAD) and organic acids (high-performance liquid chromatography with diode array detector method; HPLC-DAD) was determined both in the mushroom fruiting bodies and in the brine. Five free sugars (ribose, trehalose, sucrose, glucose, and fructose), mannitol, and six organic acids (lactic, malic, succinic, citric, acetic, and fumaric acids) were detected in the samples. Lactic acid dominated in the final products. The starter cultures exhibited varying degrees of utilization of available mushroom sugars and sucrose used as an additional substrate. Sucrose was utilized at a higher rate and in greater amounts by the L. plantarum EK3 isolate. This starter culture was characterized by a significantly higher final amount of produced lactic acid, a lower pH value, and higher numbers of LAB (lactic acid bacteria). These important quality parameters largely determine the stability of fermented products. Based on the analysis results and the high scores in the organoleptic evaluation of the fermented mushrooms, the L. plantarum EK3 isolate can be recommended as an appropriate starter culture for lactic fermentation of mushroom fruiting bodies.
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Affiliation(s)
- Ewa Jabłońska-Ryś
- Department of Plant Food Technology and Gastronomy, University of Life Sciences in Lublin, Skromna 8, 20-704 Lublin, Poland; (A.S.); (K.S.)
| | - Aneta Sławińska
- Department of Plant Food Technology and Gastronomy, University of Life Sciences in Lublin, Skromna 8, 20-704 Lublin, Poland; (A.S.); (K.S.)
| | - Katarzyna Skrzypczak
- Department of Plant Food Technology and Gastronomy, University of Life Sciences in Lublin, Skromna 8, 20-704 Lublin, Poland; (A.S.); (K.S.)
| | - Karolina Goral
- Clinical Dietetics Unit, Medical University of Lublin, Chodzki 7, 20-093 Lublin, Poland;
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9
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Deng K, Lan X, Chen Y, Wang T, Li M, Xu Y, Cao X, Xie G, Xie L. Integration of Transcriptomics and Metabolomics for Understanding the Different Vegetative Growth in Morchella Sextelata. Front Genet 2022; 12:829379. [PMID: 35186020 PMCID: PMC8854800 DOI: 10.3389/fgene.2021.829379] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2021] [Accepted: 12/30/2021] [Indexed: 11/13/2022] Open
Abstract
Morchella sextelata is an edible and medicinal fungus with high nutritional, medicinal, and economic value. Recently, M. sextelata has been produced through artificial cultivation in China, but its stable production remains problematic because the details of its growth and development process are limitedly understood. Herein, to investigate the dynamic process of M. sextelata development, we integrated the transcriptomics and metabolomics data of M. sextelata from three developmental stages: the young mushroom period (YMP), marketable mature period (MMP), and physiological maturity period (PMP). The results showed that the transcriptome changed dynamically at different stages and demonstrated the significant enrichment of pathways that regulate plant growth and development, such as N-glycan biosynthesis and carbon and purine metabolism. Similarly, small-molecule metabolites, such as D-fructose-1,6-biphosphate, which was upregulated during the YMP, dihydromyricetin, which was upregulated during the MMP, and L-citrulline, which was upregulated during the PMP, also showed phase-dependent characteristics. Then, combined analysis of the transcriptome data and metabolome traits revealed that the transcriptome may affect metabolic molecules during different growth stages of M. sextelata via specific enzymes, such as α-glucosidase and glucanase, which were included in two opposite transcriptome modules. In summary, this integration of transcriptomics and metabolomics data for understanding the vegetative growth of M. sextelata during different developmental stages implicated several key genes, metabolites, and pathways involved in the vegetative growth. We believe that these findings will provide comprehensive insights into the dynamic process of growth and development in M. sextelata and new clues for optimizing the methods for its cultivation application.
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Affiliation(s)
- Kejun Deng
- School of Life Science and Technology, Center for Informational Biology, University of Electronic Science and Technology of China, Chengdu, China
- *Correspondence: Kejun Deng, ; Liyuan Xie,
| | - Xiuhua Lan
- School of Life Science and Technology, Center for Informational Biology, University of Electronic Science and Technology of China, Chengdu, China
- Institute of Agricultural Resources and Environment, Sichuan Academy of Agricultural Sciences, Chengdu, China
| | - Ying Chen
- Institute of Agricultural Resources and Environment, Sichuan Academy of Agricultural Sciences, Chengdu, China
| | - Ting Wang
- School of Life Science and Technology, Center for Informational Biology, University of Electronic Science and Technology of China, Chengdu, China
| | - Mengke Li
- School of Life Science and Technology, Center for Informational Biology, University of Electronic Science and Technology of China, Chengdu, China
| | - Yingyin Xu
- Institute of Agricultural Resources and Environment, Sichuan Academy of Agricultural Sciences, Chengdu, China
| | - Xuelian Cao
- Institute of Agricultural Resources and Environment, Sichuan Academy of Agricultural Sciences, Chengdu, China
| | - Guangbo Xie
- School of Life Science and Technology, Center for Informational Biology, University of Electronic Science and Technology of China, Chengdu, China
| | - Liyuan Xie
- Institute of Agricultural Resources and Environment, Sichuan Academy of Agricultural Sciences, Chengdu, China
- *Correspondence: Kejun Deng, ; Liyuan Xie,
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10
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Dulay RMR, Cabrera EC, Kalaw SP, Reyes RG. Optimization of submerged culture conditions for mycelial biomass production of fourteen Lentinus isolates from Luzon Island, Philippines. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2021. [DOI: 10.1016/j.bcab.2021.102226] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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11
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Zięba P, Sękara A, Sułkowska-Ziaja K, Muszyńska B. Culinary and Medicinal Mushrooms: Insight into Growing Technologies. ACTA MYCOLOGICA 2021. [DOI: 10.5586/am.5526] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
Abstract
Humans have used mushrooms from the beginning of their history. However, during the last few decades, the market demand for these fruiting bodies has increased significantly owing to the spread in the capabilities of culinary and pharmacological exploitation. Natural mushroom resources have become insufficient to meet the support needs. Therefore, traditional methods of extensive cultivation as well as modern technologies have been exploited to develop effective growing recommendations for dozens of economically important mushroom species. Mushrooms can decompose a wide range of organic materials, including organic waste. They play a fundamental role in nutrient cycling and exchange in the environment. The challenge is a proper substrate composition, including bio-fortified essential elements, and the application of growing conditions to enable a continuous supply of fruiting bodies of market quality and stabilized chemical composition. Many mushroom species are used for food preparation. Moreover, they are treated as functional foods, because they have health benefits beyond their nutritional value, and are used as natural medicines in many countries. Owing to the rapid development of mushroom farming, we reviewed the growing technologies used worldwide for mushroom species developed for food, processing, and pharmacological industries.
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12
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Vos AM, Bleichrodt R, Herman KC, Ohm RA, Scholtmeijer K, Schmitt H, Lugones LG, Wösten HAB. Cycling in degradation of organic polymers and uptake of nutrients by a litter-degrading fungus. Environ Microbiol 2021; 23:224-238. [PMID: 33140552 PMCID: PMC7894533 DOI: 10.1111/1462-2920.15297] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 10/25/2020] [Accepted: 10/26/2020] [Indexed: 11/30/2022]
Abstract
Wood and litter degrading fungi are the main decomposers of lignocellulose and thus play a key role in carbon cycling in nature. Here, we provide evidence for a novel lignocellulose degradation strategy employed by the litter degrading fungus Agaricus bisporus (known as the white button mushroom). Fusion of hyphae allows this fungus to synchronize the activity of its mycelium over large distances (50 cm). The synchronized activity has a 13-h interval that increases to 20 h before becoming irregular and it is associated with a 3.5-fold increase in respiration, while compost temperature increases up to 2°C. Transcriptomic analysis of this burst-like phenomenon supports a cyclic degradation of lignin, deconstruction of (hemi-) cellulose and microbial cell wall polymers, and uptake of degradation products during vegetative growth of A. bisporus. Cycling in expression of the ligninolytic system, of enzymes involved in saccharification, and of proteins involved in nutrient uptake is proposed to provide an efficient way for degradation of substrates such as litter.
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Affiliation(s)
- Aurin M. Vos
- Microbiology, Department of BiologyUtrecht UniversityUtrechtthe Netherlands
- Wageningen Plant ResearchWageningen URWageningenthe Netherlands
| | | | - Koen C. Herman
- Microbiology, Department of BiologyUtrecht UniversityUtrechtthe Netherlands
| | - Robin A. Ohm
- Microbiology, Department of BiologyUtrecht UniversityUtrechtthe Netherlands
| | - Karin Scholtmeijer
- Plant BreedingWageningen University and ResearchWageningenthe Netherlands
| | - Heike Schmitt
- Institute for Risk Assessment SciencesUtrecht UniversityUtrechtthe Netherlands
| | - Luis G. Lugones
- Microbiology, Department of BiologyUtrecht UniversityUtrechtthe Netherlands
| | - Han A. B. Wösten
- Microbiology, Department of BiologyUtrecht UniversityUtrechtthe Netherlands
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13
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Caitano CEC, Iossi MR, Pardo-Giménez A, Vieira Júnior WG, Dias ES, Zied DC. Design of a Useful Diagrammatic Scale for the Quantification of Lecanicillium fungicola Disease in Agaricus bisporus Cultivation. Curr Microbiol 2020; 77:4037-4044. [PMID: 33057750 DOI: 10.1007/s00284-020-02232-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Accepted: 09/29/2020] [Indexed: 11/24/2022]
Abstract
The aim of the research was (i) to evaluate white and cream strains of A. bisporus yields when challenged or not with the pathogen L. fungicola, (ii) to identify the more aggressive pathogen isolates, and (iii) to develop a diagrammatic scale of spot symptoms on infected mushrooms. The experiment was carried out using two strains of A. bisporus (white and cream strains, ABI 19/01 and PB 19/01, respectively) and four isolates of L. fungicola (LF 19/01, FL 19/02, LF 19/03, and LF 19/04). The A. bisporus white strain (ABI 19/01) reached a higher yield of healthy mushrooms compared to the cream strain (PB 19/01) with values of 23.8 and 14.1%, respectively. The LF 19/03 pathogen was most aggressive, reducing the yield of healthy mushrooms by up to 64% for the PB 1/01 strain, and 49.6% for the ABI 19/01 strain. Additionally, for the same isolate, larger mushroom areas were affected, while also displaying symptoms precociously during the second flush. Finally, using the set of visually displayed symptoms assessed in this study, we were able to construct a diagrammatic scale to assist commercial mushroom growers for managing diseased crops.
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Affiliation(s)
- Cinthia E C Caitano
- Programa de Pós Graduação Em Microbiologia Agropecuária, Faculdade de Ciências Agrárias E Veterinária (FCAV), Universidade Estadual Paulista (UNESP), Jaboticabal, SP, 14884-900, Brazil
| | - Matheus R Iossi
- Programa de Pós Graduação Em Microbiologia Agropecuária, Faculdade de Ciências Agrárias E Veterinária (FCAV), Universidade Estadual Paulista (UNESP), Jaboticabal, SP, 14884-900, Brazil
| | - Arturo Pardo-Giménez
- Centro de Investigación, Experimentación y Servicios del Champiñón (CIES), 16220 Quintanar del Rey, Cuenca, Spain
| | - Wagner G Vieira Júnior
- Programa de Pós Graduação Em Microbiologia Agropecuária, Faculdade de Ciências Agrárias E Veterinária (FCAV), Universidade Estadual Paulista (UNESP), Jaboticabal, SP, 14884-900, Brazil
| | - Eustáquio S Dias
- Departamento de Biologia (DBI), Universidade Federal de Lavras (UFLA), Lavras, MG, 37200-900, Brazil
| | - Diego C Zied
- Faculdade de Ciências Agrárias e Tecnológicas (FCAT), Universidade Estadual Paulista (UNESP), Rod. Cmte João Ribeiro de Barros, km 651, Bairro das Antes, Dracena, SP, 17900-000, Brazil.
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14
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Feng Y, Zhang J, Wen C, Sedem Dzah C, Chidimma Juliet I, Duan Y, Zhang H. Recent advances in Agaricus bisporus polysaccharides: Extraction, purification, physicochemical characterization and bioactivities. Process Biochem 2020. [DOI: 10.1016/j.procbio.2020.04.010] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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15
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Daly P, Peng M, Mitchell HD, Kim Y, Ansong C, Brewer H, de Gijsel P, Lipton MS, Markillie LM, Nicora CD, Orr G, Wiebenga A, Hildén KS, Kabel MA, Baker SE, Mäkelä MR, de Vries RP. Colonies of the fungus Aspergillus niger are highly differentiated to adapt to local carbon source variation. Environ Microbiol 2020; 22:1154-1166. [PMID: 31876091 PMCID: PMC7065180 DOI: 10.1111/1462-2920.14907] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Accepted: 12/20/2019] [Indexed: 11/27/2022]
Abstract
Saprobic fungi, such as Aspergillus niger, grow as colonies consisting of a network of branching and fusing hyphae that are often considered to be relatively uniform entities in which nutrients can freely move through the hyphae. In nature, different parts of a colony are often exposed to different nutrients. We have investigated, using a multi-omics approach, adaptation of A. niger colonies to spatially separated and compositionally different plant biomass substrates. This demonstrated a high level of intra-colony differentiation, which closely matched the locally available substrate. The part of the colony exposed to pectin-rich sugar beet pulp and to xylan-rich wheat bran showed high pectinolytic and high xylanolytic transcript and protein levels respectively. This study therefore exemplifies the high ability of fungal colonies to differentiate and adapt to local conditions, ensuring efficient use of the available nutrients, rather than maintaining a uniform physiology throughout the colony.
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Affiliation(s)
- Paul Daly
- Fungal Physiology, Westerdijk Fungal Biodiversity Institute & Fungal Molecular PhysiologyUtrecht UniversityUppsalalaan 8, 3584 CT UtrechtThe Netherlands
| | - Mao Peng
- Fungal Physiology, Westerdijk Fungal Biodiversity Institute & Fungal Molecular PhysiologyUtrecht UniversityUppsalalaan 8, 3584 CT UtrechtThe Netherlands
| | - Hugh D. Mitchell
- Biological Sciences DivisionsPacific Northwest National LaboratoryRichlandWA99352USA
| | - Young‐Mo Kim
- Biological Sciences DivisionsPacific Northwest National LaboratoryRichlandWA99352USA
| | - Charles Ansong
- Biological Sciences DivisionsPacific Northwest National LaboratoryRichlandWA99352USA
| | - Heather Brewer
- Environmental Molecular Sciences LaboratoryPacific Northwest National LaboratoryRichlandWA99352USA
| | - Peter de Gijsel
- Laboratory of Food ChemistryWageningen UniversityBornse Weilanden 9, 6708 WG WageningenThe Netherlands
| | - Mary S. Lipton
- Environmental Molecular Sciences LaboratoryPacific Northwest National LaboratoryRichlandWA99352USA
| | - Lye Meng Markillie
- Biological Sciences DivisionsPacific Northwest National LaboratoryRichlandWA99352USA
| | - Carrie D. Nicora
- Biological Sciences DivisionsPacific Northwest National LaboratoryRichlandWA99352USA
| | - Galya Orr
- Environmental Molecular Sciences LaboratoryPacific Northwest National LaboratoryRichlandWA99352USA
| | - Ad Wiebenga
- Fungal Physiology, Westerdijk Fungal Biodiversity Institute & Fungal Molecular PhysiologyUtrecht UniversityUppsalalaan 8, 3584 CT UtrechtThe Netherlands
| | - Kristiina S. Hildén
- Department of MicrobiologyUniversity of HelsinkiViikinkaari 9, 00790 HelsinkiFinland
| | - Mirjam A. Kabel
- Laboratory of Food ChemistryWageningen UniversityBornse Weilanden 9, 6708 WG WageningenThe Netherlands
| | - Scott E. Baker
- Environmental Molecular Sciences LaboratoryPacific Northwest National LaboratoryRichlandWA99352USA
| | - Miia R. Mäkelä
- Department of MicrobiologyUniversity of HelsinkiViikinkaari 9, 00790 HelsinkiFinland
| | - Ronald P. de Vries
- Fungal Physiology, Westerdijk Fungal Biodiversity Institute & Fungal Molecular PhysiologyUtrecht UniversityUppsalalaan 8, 3584 CT UtrechtThe Netherlands
- Department of MicrobiologyUniversity of HelsinkiViikinkaari 9, 00790 HelsinkiFinland
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16
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Surface properties of chitin-glucan nanopapers from Agaricus bisporus. Int J Biol Macromol 2020; 148:677-687. [PMID: 31954796 DOI: 10.1016/j.ijbiomac.2020.01.141] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Revised: 01/10/2020] [Accepted: 01/15/2020] [Indexed: 02/07/2023]
Abstract
The structural component of fungal cell walls comprises of chitin covalently bonded to glucan; this constitutes a native composite material (chitin-glucan, CG) combining the strength of chitin and the toughness of glucan. It has a native nano-fibrous structure in contrast to nanocellulose, for which further nanofibrillation is required. Nanopapers can be manufactured from fungal chitin nanofibrils (FChNFs). FChNF nanopapers are potentially applicable in packaging films, composites, or membranes for water treatment due to their distinct surface properties inherited from the composition of chitin and glucan. Here, chitin-glucan nanofibrils were extracted from common mushroom (Agaricus bisporus) cell walls utilizing a mild isolation procedure to preserve the native quality of the chitin-glucan complex. These extracts were readily disintegrated into nanofibre dimensions by a low-energy mechanical blending, thus making the extract dispersion directly suitable for nanopaper preparation using a simple vacuum filtration process. Chitin-glucan nanopaper morphology, mechanical, chemical, and surface properties were studied and compared to chitin nanopapers of crustacean (Cancer pagurus) origin. It was found that fungal extract nanopapers had distinct physico-chemical surface properties, being more hydrophobic than crustacean chitin.
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17
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Kaiser RA, Mao SA, Glorioso J, Amiot B, Nicolas CT, Allen KL, Du Z, VanLith CJ, Hickey RD, Nyberg SL, Lillegard JB. Lentiviral Vector-mediated Gene Therapy of Hepatocytes Ex Vivo for Autologous Transplantation in Swine. J Vis Exp 2018. [PMID: 30451238 DOI: 10.3791/58399] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Gene therapy is an ideal choice to cure many inborn errors of metabolism of the liver. Ex-vivo, lentiviral vectors have been used successfully in the treatment of many hematopoietic diseases in humans, as their use offers stable transgene expression due to the vector's ability to integrate into the host genome. This method demonstrates the application of ex vivo gene therapy of hepatocytes to a large animal model of hereditary tyrosinemia type I. This process consists of 1) isolation of primary hepatocytes from the autologous donor/recipient animal, 2) ex vivo gene delivery via hepatocyte transduction with a lentiviral vector, and 3) autologous transplant of corrected hepatocytes via portal vein injection. Success of the method generally relies upon efficient and sterile removal of the liver resection, careful handling of the excised specimen for isolation of viable hepatocytes sufficient for re-engrafting, high-percentage transduction of the isolated cells, and aseptic surgical procedures throughout to prevent infection. Technical failure at any of these steps will result in low yield of viable transduced hepatocytes for autologous transplant or infection of the donor/recipient animal. The pig model of human type 1 hereditary tyrosinemia (HT-1) chosen for this approach is uniquely amenable to such a method, as even a small percentage of engraftment of corrected cells will lead to repopulation of the liver with healthy cells based on a powerful selective advantage over native-diseased hepatocytes. Although this growth selection will not be true for all indications, this approach is a foundation for expansion into other indications and allows for manipulation of this environment to address additional diseases, both within the liver and beyond, while controlling for exposure to viral vector and opportunity for off-target toxicity and tumorigenicity.
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Affiliation(s)
- Robert A Kaiser
- Department of Surgery, Mayo Clinic; Midwest Fetal Care Center, Children's Hospitals and Clinics of Minnesota
| | | | | | | | | | | | - Zeji Du
- Department of Surgery, Mayo Clinic
| | | | | | | | - Joseph B Lillegard
- Department of Surgery, Mayo Clinic; Midwest Fetal Care Center, Children's Hospitals and Clinics of Minnesota; Pediatric Surgical Associates;
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18
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Daly P, López SC, Peng M, Lancefield CS, Purvine SO, Kim Y, Zink EM, Dohnalkova A, Singan VR, Lipzen A, Dilworth D, Wang M, Ng V, Robinson E, Orr G, Baker SE, Bruijnincx PCA, Hildén KS, Grigoriev IV, Mäkelä MR, de Vries RP. Dichomitus squalens
partially tailors its molecular responses to the composition of solid wood. Environ Microbiol 2018; 20:4141-4156. [DOI: 10.1111/1462-2920.14416] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Revised: 09/11/2018] [Accepted: 09/13/2018] [Indexed: 12/23/2022]
Affiliation(s)
- Paul Daly
- Fungal Physiology Westerdijk Fungal Biodiversity Institute and Fungal Molecular Physiology, Utrecht University Utrecht The Netherlands
| | - Sara Casado López
- Fungal Physiology Westerdijk Fungal Biodiversity Institute and Fungal Molecular Physiology, Utrecht University Utrecht The Netherlands
| | - Mao Peng
- Fungal Physiology Westerdijk Fungal Biodiversity Institute and Fungal Molecular Physiology, Utrecht University Utrecht The Netherlands
| | - Christopher S. Lancefield
- Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science Utrecht University Utrecht The Netherlands
| | - Samuel O. Purvine
- Environmental Molecular Sciences Laboratory Pacific Northwest National Laboratory Richland WA USA
| | - Young‐Mo Kim
- Biological Sciences Division Pacific Northwest National Laboratory Richland WA USA
| | - Erika M. Zink
- Biological Sciences Division Pacific Northwest National Laboratory Richland WA USA
| | - Alice Dohnalkova
- Environmental Molecular Sciences Laboratory Pacific Northwest National Laboratory Richland WA USA
| | | | - Anna Lipzen
- US Department of Energy Joint Genome Institute Walnut Creek CA USA
| | - David Dilworth
- US Department of Energy Joint Genome Institute Walnut Creek CA USA
| | - Mei Wang
- US Department of Energy Joint Genome Institute Walnut Creek CA USA
| | - Vivian Ng
- US Department of Energy Joint Genome Institute Walnut Creek CA USA
| | - Errol Robinson
- Environmental Molecular Sciences Laboratory Pacific Northwest National Laboratory Richland WA USA
| | - Galya Orr
- Environmental Molecular Sciences Laboratory Pacific Northwest National Laboratory Richland WA USA
| | - Scott E. Baker
- Environmental Molecular Sciences Laboratory Pacific Northwest National Laboratory Richland WA USA
| | - Pieter C. A. Bruijnincx
- Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science Utrecht University Utrecht The Netherlands
| | | | | | - Miia R. Mäkelä
- Department of Microbiology University of Helsinki Helsinki Finland
| | - Ronald P. de Vries
- Fungal Physiology Westerdijk Fungal Biodiversity Institute and Fungal Molecular Physiology, Utrecht University Utrecht The Netherlands
- Department of Microbiology University of Helsinki Helsinki Finland
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19
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Brunner I, Fischer M, Rüthi J, Stierli B, Frey B. Ability of fungi isolated from plastic debris floating in the shoreline of a lake to degrade plastics. PLoS One 2018; 13:e0202047. [PMID: 30133489 PMCID: PMC6104954 DOI: 10.1371/journal.pone.0202047] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Accepted: 07/26/2018] [Indexed: 11/18/2022] Open
Abstract
Plastic waste in the environment is a significant threat due to its resistance to biological processes. Here we report the ability of fungal strains found on floating plastic debris to degrade plastics. In particular, we wanted to know which fungi grow on plastic debris floating in the shoreline, whether these fungi have the ability to degrade plastics, whether the plastic-degrading fungi can degrade other complex C-polymers such as lignin, and whether lignin-degraders vice versa can also break down plastics. Overall, more than a hundred fungal strains were isolated from plastic debris of the shoreline of Lake Zurich, Switzerland, and grouped morphologically. Representative strains of these groups were then selected and genetically identified, altogether twelve different fungal species and one species of Oomycota. The list of fungi included commonly occurring saprotrophic fungi but also some plant pathogens. These fungal strains were then used to test the ability to degrade polyethylene and polyurethane. The tests showed that none of the strains were able to degrade polyethylene. However, four strains were able to degrade polyurethane, the three litter-saprotrophic fungi Cladosporium cladosporioides, Xepiculopsis graminea, and Penicillium griseofulvum and the plant pathogen Leptosphaeria sp. A series of additional fungi with an origin other than from plastic debris were tested as well. Here, only the two litter-saprotrophic fungi Agaricus bisporus and Marasmius oreades showed the capability to degrade polyurethane. In contrast, wood-saprotrophic fungi and ectomycorrhizal fungi were unable to degrade polyurethane. Overall, it seems that in majority only a few litter-saprotrophic fungi, which possess a wide variety of enzymes, have the ability to degrade polyurethane. None of the fungi tested was able to degrade polyethylene.
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Affiliation(s)
- Ivano Brunner
- Forest Soils and Biogeochemistry, Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Birmensdorf, Switzerland
- * E-mail:
| | - Moira Fischer
- Forest Soils and Biogeochemistry, Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Birmensdorf, Switzerland
| | - Joel Rüthi
- Forest Soils and Biogeochemistry, Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Birmensdorf, Switzerland
| | - Beat Stierli
- Forest Soils and Biogeochemistry, Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Birmensdorf, Switzerland
| | - Beat Frey
- Forest Soils and Biogeochemistry, Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Birmensdorf, Switzerland
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20
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Pontes MVA, Patyshakuliyeva A, Post H, Jurak E, Hildén K, Altelaar M, Heck A, Kabel MA, de Vries RP, Mäkelä MR. The physiology of Agaricus bisporus in semi-commercial compost cultivation appears to be highly conserved among unrelated isolates. Fungal Genet Biol 2017; 112:12-20. [PMID: 29277563 DOI: 10.1016/j.fgb.2017.12.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Revised: 12/18/2017] [Accepted: 12/21/2017] [Indexed: 10/18/2022]
Abstract
The white button mushroom Agaricus bisporus is one of the most widely produced edible fungus with a great economical value. Its commercial cultivation process is often performed on wheat straw and animal manure based compost that mainly contains lignocellulosic material as a source of carbon and nutrients for the mushroom production. As a large portion of compost carbohydrates are left unused in the current mushroom cultivation process, the aim of this work was to study wild-type A. bisporus strains for their potential to convert the components that are poorly utilized by the commercial strain A15. We therefore focused our analysis on the stages where the fungus is producing fruiting bodies. Growth profiling was used to identify A. bisporus strains with different abilities to use plant biomass derived polysaccharides, as well as to transport and metabolize the corresponding monomeric sugars. Six wild-type isolates with diverse growth profiles were compared for mushroom production to A15 strain in semi-commercial cultivation conditions. Transcriptome and proteome analyses of the three most interesting wild-type strains and A15 indicated that the unrelated A. bisporus strains degrade and convert plant biomass polymers in a highly similar manner. This was also supported by the chemical content of the compost during the mushroom production process. Our study therefore reveals a highly conserved physiology for unrelated strains of this species during growth in compost.
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Affiliation(s)
- María Victoria Aguilar Pontes
- Fungal Physiology, Westerdijk Fungal Biodiversity Institute & Fungal Molecular Physiology, Utrecht University, Uppsalalaan 8, 3584 CT Utrecht, The Netherlands
| | - Aleksandrina Patyshakuliyeva
- Fungal Physiology, Westerdijk Fungal Biodiversity Institute & Fungal Molecular Physiology, Utrecht University, Uppsalalaan 8, 3584 CT Utrecht, The Netherlands
| | - Harm Post
- Biomolecular Mass Spectrometry and Proteomics Bijvoet, Center for Biomolecules Research and Utrecht Institute for Pharmaceutical Sciences, Padualaan 8, 3584 CH Utrecht, The Netherlands; Netherlands Proteomics Center, Padualaan 8, 3584 CH Utrecht, The Netherlands
| | - Edita Jurak
- Laboratory of Food Chemistry, Wageningen University, Bornse Weilanden 9, 6708 WG Wageningen, The Netherlands
| | - Kristiina Hildén
- Department of Microbiology, University of Helsinki, Viikinkaari 9, Helsinki, Finland
| | - Maarten Altelaar
- Biomolecular Mass Spectrometry and Proteomics Bijvoet, Center for Biomolecules Research and Utrecht Institute for Pharmaceutical Sciences, Padualaan 8, 3584 CH Utrecht, The Netherlands; Netherlands Proteomics Center, Padualaan 8, 3584 CH Utrecht, The Netherlands
| | - Albert Heck
- Biomolecular Mass Spectrometry and Proteomics Bijvoet, Center for Biomolecules Research and Utrecht Institute for Pharmaceutical Sciences, Padualaan 8, 3584 CH Utrecht, The Netherlands; Netherlands Proteomics Center, Padualaan 8, 3584 CH Utrecht, The Netherlands
| | - Mirjam A Kabel
- Laboratory of Food Chemistry, Wageningen University, Bornse Weilanden 9, 6708 WG Wageningen, The Netherlands
| | - Ronald P de Vries
- Fungal Physiology, Westerdijk Fungal Biodiversity Institute & Fungal Molecular Physiology, Utrecht University, Uppsalalaan 8, 3584 CT Utrecht, The Netherlands.
| | - Miia R Mäkelä
- Fungal Physiology, Westerdijk Fungal Biodiversity Institute & Fungal Molecular Physiology, Utrecht University, Uppsalalaan 8, 3584 CT Utrecht, The Netherlands; Department of Microbiology, University of Helsinki, Viikinkaari 9, Helsinki, Finland
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21
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McGee CF. Microbial ecology of the Agaricus bisporus mushroom cropping process. Appl Microbiol Biotechnol 2017; 102:1075-1083. [PMID: 29222576 DOI: 10.1007/s00253-017-8683-9] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Revised: 11/28/2017] [Accepted: 11/29/2017] [Indexed: 10/18/2022]
Abstract
Agaricus bisporus is the most widely cultivated mushroom species in the world. Cultivation is commenced by inoculating beds of semi-pasteurised composted organic substrate with a pure spawn of A. bisporus. The A. bisporus mycelium subsequently colonises the composted substrate by degrading the organic material to release nutrients. A layer of peat, often called "casing soil", is laid upon the surface of the composted substrate to induce the development of the mushroom crop and maintain compost environmental conditions. Extensive research has been conducted investigating the biochemistry and genetics of A. bisporus throughout the cultivation process; however, little is currently known about the wider microbial ecology that co-inhabits the composted substrate and casing layers. The compost and casing microbial communities are known to play important roles in the mushroom production process. Microbial species present in the compost and casing are known for (1) being an important source of nitrogen for the A. bisporus mycelium, (2) releasing sugar residues through the degradation of the wheat straw in the composted substrate, (3) playing a critical role in inducing development of the A. bisporus fruiting bodies and (4) acting as pathogens by parasitising the mushroom mycelium/crop. Despite a long history of research into the mushroom cropping process, an extensive review of the microbial communities present in the compost and casing has not as of yet been undertaken. The aim of this review is to provide a comprehensive summary of the literature investigating the compost and casing microbial communities throughout cultivation of the A. bisporus mushroom crop.
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Affiliation(s)
- Conor F McGee
- Department of Agriculture, Food and the Marine, Celbridge, Co. Kildare, Ireland.
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22
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McGee CF, Byrne H, Irvine A, Wilson J. Diversity and dynamics of the DNA- and cDNA-derived compost fungal communities throughout the commercial cultivation process for Agaricus bisporus. Mycologia 2017; 109:475-484. [PMID: 28759322 DOI: 10.1080/00275514.2017.1349498] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Commercial cultivation of the button mushroom Agaricus bisporus is performed through the inoculation of a semipasteurized composted material. Pasteurization of the compost material prior to inoculation results in a substrate with a fungal community that becomes dominated by A. bisporus. However, little is known about the composition and activity in the wider fungal community beyond the presence of A. bisporus in compost throughout the mushroom cropping process. In this study, the fungal cropping compost community was characterized by sequencing nuc rDNA ITS1-5.8S-ITS2 amplified from extractable DNA and RNA. The fungal community generated from DNA extracts identified a diverse community containing 211 unique species, although only 51 were identified from cDNA. Agaricus bisporus was found to dominate in the DNA-derived fungal community for the duration of the cropping process. However, analysis of cDNA extracts found A. bisporus to dominate only up to the first crop flush, after which activity decreased sharply and a much broader fungal community became active. This study has highlighted the diverse fungal community that is present in mushroom compost during cropping.
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Affiliation(s)
- C F McGee
- a Monaghan Mushrooms R&D Department , Group Headquarters , Tyholland , County Monaghan , Ireland
| | - H Byrne
- a Monaghan Mushrooms R&D Department , Group Headquarters , Tyholland , County Monaghan , Ireland
| | - A Irvine
- a Monaghan Mushrooms R&D Department , Group Headquarters , Tyholland , County Monaghan , Ireland
| | - J Wilson
- a Monaghan Mushrooms R&D Department , Group Headquarters , Tyholland , County Monaghan , Ireland
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23
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Kabel MA, Jurak E, Mäkelä MR, de Vries RP. Occurrence and function of enzymes for lignocellulose degradation in commercial Agaricus bisporus cultivation. Appl Microbiol Biotechnol 2017; 101:4363-4369. [PMID: 28466110 PMCID: PMC5442256 DOI: 10.1007/s00253-017-8294-5] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2017] [Revised: 04/06/2017] [Accepted: 04/08/2017] [Indexed: 01/04/2023]
Abstract
The white button mushroom Agaricus bisporus is economically the most important commercially produced edible fungus. It is grown on carbon- and nitrogen-rich substrates, such as composted cereal straw and animal manure. The commercial mushroom production process is usually performed in buildings or tunnels under highly controlled environmental conditions. In nature, the basidiomycete A. bisporus has a significant impact on the carbon cycle in terrestrial ecosystems as a saprotrophic decayer of leaf litter. In this mini-review, the fate of the compost plant cell wall structures, xylan, cellulose and lignin, is discussed. A comparison is made from the structural changes observed to the occurrence and function of enzymes for lignocellulose degradation present, with a special focus on the extracellular enzymes produced by A. bisporus. In addition, recent advancements in whole genome level molecular studies in various growth stages of A. bisporus in compost are reviewed.
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Affiliation(s)
- Mirjam A Kabel
- Laboratory of Food Chemistry, Wageningen University, Bornse Weilanden 9, 6708 WG, Wageningen, The Netherlands
| | - Edita Jurak
- Department of Biotechnology and Chemical Technology, Aalto University, Kemistintie 1, 02150, Espoo, Finland
| | - Miia R Mäkelä
- Fungal Physiology, Westerdijk Fungal Biodiversity Institute & Fungal Molecular Physiology, Utrecht University, Uppsalalaan 8, 3584 CT, Utrecht, The Netherlands.,Division of Microbiology and Biotechnology, Department of Food and Environmental Sciences, University of Helsinki, Viikinkaari 9, Helsinki, Finland
| | - Ronald P de Vries
- Fungal Physiology, Westerdijk Fungal Biodiversity Institute & Fungal Molecular Physiology, Utrecht University, Uppsalalaan 8, 3584 CT, Utrecht, The Netherlands.
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24
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Patyshakuliyeva A, Post H, Zhou M, Jurak E, Heck AJR, Hildén KS, Kabel MA, Mäkelä MR, Altelaar MAF, de Vries RP. Uncovering the abilities ofAgaricus bisporusto degrade plant biomass throughout its life cycle. Environ Microbiol 2015; 17:3098-109. [DOI: 10.1111/1462-2920.12967] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2015] [Revised: 06/18/2015] [Accepted: 06/20/2015] [Indexed: 11/30/2022]
Affiliation(s)
- Aleksandrina Patyshakuliyeva
- Fungal Physiology, CBS-KNAW Fungal Biodiversity Centre & Fungal Molecular Physiology; Utrecht University; Padualaan 8 3584 CH Utrecht The Netherlands
| | - Harm Post
- Biomolecular Mass Spectrometry and Proteomics, Bijvoet Centre for Biomolecular Research and Utrecht Institute for Pharmaceutical Sciences; Utrecht University; Padualaan 8 3584 CH Utrecht The Netherlands
- Netherlands Proteomics Centre; Padualaan 8 3584 CH Utrecht The Netherlands
| | - Miaomiao Zhou
- Fungal Physiology, CBS-KNAW Fungal Biodiversity Centre & Fungal Molecular Physiology; Utrecht University; Padualaan 8 3584 CH Utrecht The Netherlands
| | - Edita Jurak
- Laboratory of Food Chemistry; Wageningen University; Bornse Weilanden 9 6708 WG Wageningen The Netherlands
| | - Albert J. R. Heck
- Biomolecular Mass Spectrometry and Proteomics, Bijvoet Centre for Biomolecular Research and Utrecht Institute for Pharmaceutical Sciences; Utrecht University; Padualaan 8 3584 CH Utrecht The Netherlands
- Netherlands Proteomics Centre; Padualaan 8 3584 CH Utrecht The Netherlands
| | - Kristiina S. Hildén
- Department of Food and Environmental Sciences; University of Helsinki; P. O. Box 56 00014 Helsinki Finland
| | - Mirjam A. Kabel
- Laboratory of Food Chemistry; Wageningen University; Bornse Weilanden 9 6708 WG Wageningen The Netherlands
| | - Miia R. Mäkelä
- Department of Food and Environmental Sciences; University of Helsinki; P. O. Box 56 00014 Helsinki Finland
| | - Maarten A. F. Altelaar
- Biomolecular Mass Spectrometry and Proteomics, Bijvoet Centre for Biomolecular Research and Utrecht Institute for Pharmaceutical Sciences; Utrecht University; Padualaan 8 3584 CH Utrecht The Netherlands
- Netherlands Proteomics Centre; Padualaan 8 3584 CH Utrecht The Netherlands
| | - Ronald P. de Vries
- Fungal Physiology, CBS-KNAW Fungal Biodiversity Centre & Fungal Molecular Physiology; Utrecht University; Padualaan 8 3584 CH Utrecht The Netherlands
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25
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Compost Grown Agaricus bisporus Lacks the Ability to Degrade and Consume Highly Substituted Xylan Fragments. PLoS One 2015; 10:e0134169. [PMID: 26237450 PMCID: PMC4523207 DOI: 10.1371/journal.pone.0134169] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2015] [Accepted: 07/06/2015] [Indexed: 11/21/2022] Open
Abstract
The fungus Agaricus bisporus is commercially grown for the production of edible mushrooms. This cultivation occurs on compost, but not all of this substrate is consumed by the fungus. To determine why certain fractions remain unused, carbohydrate degrading enzymes, water-extracted from mushroom-grown compost at different stages of mycelium growth and fruiting body formation, were analyzed for their ability to degrade a range of polysaccharides. Mainly endo-xylanase, endo-glucanase, β-xylosidase and β-glucanase activities were determined in the compost extracts obtained during mushroom growth. Interestingly, arabinofuranosidase activity able to remove arabinosyl residues from doubly substituted xylose residues and α-glucuronidase activity were not detected in the compost enzyme extracts. This correlates with the observed accumulation of arabinosyl and glucuronic acid substituents on the xylan backbone in the compost towards the end of the cultivation. Hence, it was concluded that compost grown A. bisporus lacks the ability to degrade and consume highly substituted xylan fragments.
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26
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Accumulation of recalcitrant xylan in mushroom-compost is due to a lack of xylan substituent removing enzyme activities of Agaricus bisporus. Carbohydr Polym 2015; 132:359-68. [PMID: 26256360 DOI: 10.1016/j.carbpol.2015.06.065] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2015] [Revised: 06/15/2015] [Accepted: 06/20/2015] [Indexed: 11/22/2022]
Abstract
The ability of Agaricus bisporus to degrade xylan in wheat straw based compost during mushroom formation is unclear. In this paper, xylan was extracted from the compost with water, 1M and 4M alkali. Over the phases analyzed, the remaining xylan was increasingly substituted with (4-O-methyl-)glucuronic acid and arabinosyl residues, both one and two arabinosyl residues per xylosyl residue remained. In the 1M and 4M KOH soluble solids of spent compost, 33 and 49 out of 100 xylosyl residues, respectively, were substituted. The accumulation of glucuronic acid substituents matched with the analysis that the two A. bisporus genes encoding for α-glucuronidase activity (both GH115) were not expressed in the A. bisporus mycelium in the compost during fruiting. Also, in a maximum likelihood tree it was shown that it is not likely that A. bisporus possesses genes encoding for the activity to remove arabinose from xylosyl residues having two arabinosyl residues.
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27
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Scaglia B, Pognani M, Adani F. Evaluation of hormone-like activity of the dissolved organic matter fraction (DOM) of compost and digestate. THE SCIENCE OF THE TOTAL ENVIRONMENT 2015; 514:314-321. [PMID: 25668284 DOI: 10.1016/j.scitotenv.2015.02.009] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2014] [Revised: 02/02/2015] [Accepted: 02/03/2015] [Indexed: 06/04/2023]
Abstract
Biomasses are usually applied to soil for their agronomic properties (fertilization and amendment properties). Biomass can also have bio-stimulating effects on plants because of the presence of hormones and hormone-like molecules. Although compost has been the subject for studies of this aspect, no data have yet been reported on the extraction of this kind of molecule from digestate biomass. The aim of this work is to study the auxin- and gibberellin-like activity of pig slurry digestate in comparison with those of pruning and garden wastes compost's dissolved organic fraction (DOM). DOM (i.e., fraction<0.45 μm) is the most reactive among the organic matter fractions readily available to microbial and plant metabolism. No gibberellin-like activities were found for either compost or digestate, whereas digestate showed auxin-like properties which were found to be located in its neutral hydrophobic (NHo) DOM fractions. Hormone activity was due principally to the presence of auxin coming from the anaerobic digestion of aromatic amino acids.
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Affiliation(s)
- Barbara Scaglia
- GRUPPO RICICLA, Dipartimento di Science Agrarie e Ambientali: Produzione, Territorio, Agroenergia, Università degli Studi di Milano, Via Celoria 2, 20133 Milano, Italy.
| | - Michele Pognani
- GRUPPO RICICLA, Dipartimento di Science Agrarie e Ambientali: Produzione, Territorio, Agroenergia, Università degli Studi di Milano, Via Celoria 2, 20133 Milano, Italy
| | - Fabrizio Adani
- GRUPPO RICICLA, Dipartimento di Science Agrarie e Ambientali: Produzione, Territorio, Agroenergia, Università degli Studi di Milano, Via Celoria 2, 20133 Milano, Italy
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28
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Deciphering the ability of Agaricus bisporus var. burnettii to produce mushrooms at high temperature (25°C). Fungal Genet Biol 2014; 73:1-11. [DOI: 10.1016/j.fgb.2014.08.013] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2014] [Revised: 08/18/2014] [Accepted: 08/31/2014] [Indexed: 01/02/2023]
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29
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Rahmad N, Al-Obaidi JR, Rashid NMN, Zean NB, Yusoff MHYM, Shaharuddin NS, Jamil NAM, Saleh NM. Comparative proteomic analysis of different developmental stages of the edible mushroom Termitomyces heimii. Biol Res 2014; 47:30. [PMID: 25053143 PMCID: PMC4105490 DOI: 10.1186/0717-6287-47-30] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2014] [Accepted: 06/25/2014] [Indexed: 11/20/2022] Open
Abstract
BACKGROUND Termitomyces heimii is a basidiomycete fungus that has a symbiotic relationship with termites, and it is an edible mushroom with a unique flavour and texture. T. heimii is also one of the most difficult mushrooms to cultivate throughout the world. Little is known about the growth and development of these mushrooms, and the available information is insufficient or poor. The purpose of this study was to provide a base of knowledge regarding the biological processes involved in the development of T. heimii. The proteomic method of 2 dimensional difference gel electrophoresis 2D-DIGE was used to determine and examine the protein profiles of each developmental stage (mycelium, primordium and fruiting body). Total proteins were extracted by TCA-acetone precipitation. RESULTS A total of 271 protein spots were detected by electrophoresis covering pH 3-10 and 10-250 kDa. Selected protein spots were subjected to mass spectrometric analyses with matrix-assisted laser desorption/ionisation (MALDI TOF/TOF). Nineteen protein spots were identified based on peptide mass fingerprinting by matching peptide fragments to the NCBI non-redundant database using MASCOT software. The 19 protein spots were categorised into four major groups through KEGG pathway analysis, as follows: carbohydrate metabolism, energy metabolism, amino acid metabolism and response to environmental stress. CONCLUSIONS The results from our study show that there is a clear correlation between the changes in protein expression that occur during different developmental stages. Enzymes related to cell wall synthesis were most highly expressed during fruiting body formation compared to the mycelium and primordial stages. Moreover, enzymes involved in cell wall component degradation were up-regulated in the earlier stages of mushroom development.
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Affiliation(s)
- Norasfaliza Rahmad
- Agro-biotechnology Institute Malaysia (ABI), c/o MARDI Headquarters, Serdang, Selangor 43400 Malaysia
| | - Jameel R Al-Obaidi
- Agro-biotechnology Institute Malaysia (ABI), c/o MARDI Headquarters, Serdang, Selangor 43400 Malaysia
| | - Noraswati Mohd Nor Rashid
- Agro-biotechnology Institute Malaysia (ABI), c/o MARDI Headquarters, Serdang, Selangor 43400 Malaysia
| | - Ng Boon Zean
- Agro-biotechnology Institute Malaysia (ABI), c/o MARDI Headquarters, Serdang, Selangor 43400 Malaysia
| | | | - Nur Syahidah Shaharuddin
- Agro-biotechnology Institute Malaysia (ABI), c/o MARDI Headquarters, Serdang, Selangor 43400 Malaysia
| | - Nor Azreen Mohd Jamil
- Agro-biotechnology Institute Malaysia (ABI), c/o MARDI Headquarters, Serdang, Selangor 43400 Malaysia
| | - Norihan Mohd Saleh
- Agro-biotechnology Institute Malaysia (ABI), c/o MARDI Headquarters, Serdang, Selangor 43400 Malaysia
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