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Földi C, Merényi Z, Balázs B, Csernetics Á, Miklovics N, Wu H, Hegedüs B, Virágh M, Hou Z, Liu XB, Galgóczy L, Nagy LG. Snowball: a novel gene family required for developmental patterning of fruiting bodies of mushroom-forming fungi (Agaricomycetes). mSystems 2024; 9:e0120823. [PMID: 38334416 PMCID: PMC10949477 DOI: 10.1128/msystems.01208-23] [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: 11/10/2023] [Accepted: 01/10/2024] [Indexed: 02/10/2024] Open
Abstract
The morphogenesis of sexual fruiting bodies of fungi is a complex process determined by a genetically encoded program. Fruiting bodies reached the highest complexity levels in the Agaricomycetes; yet, the underlying genetics is currently poorly known. In this work, we functionally characterized a highly conserved gene termed snb1, whose expression level increases rapidly during fruiting body initiation. According to phylogenetic analyses, orthologs of snb1 are present in almost all agaricomycetes and may represent a novel conserved gene family that plays a substantial role in fruiting body development. We disrupted snb1 using CRISPR/Cas9 in the agaricomycete model organism Coprinopsis cinerea. snb1 deletion mutants formed unique, snowball-shaped, rudimentary fruiting bodies that could not differentiate caps, stipes, and lamellae. We took advantage of this phenotype to study fruiting body differentiation using RNA-Seq analyses. This revealed differentially regulated genes and gene families that, based on wild-type RNA-Seq data, were upregulated early during development and showed tissue-specific expression, suggesting a potential role in differentiation. Taken together, the novel gene family of snb1 and the differentially expressed genes in the snb1 mutants provide valuable insights into the complex mechanisms underlying developmental patterning in the Agaricomycetes. IMPORTANCE Fruiting bodies of mushroom-forming fungi (Agaricomycetes) are complex multicellular structures, with a spatially and temporally integrated developmental program that is, however, currently poorly known. In this study, we present a novel, conserved gene family, Snowball (snb), termed after the unique, differentiation-less fruiting body morphology of snb1 knockout strains in the model mushroom Coprinopsis cinerea. snb is a gene of unknown function that is highly conserved among agaricomycetes and encodes a protein of unknown function. A comparative transcriptomic analysis of the early developmental stages of differentiated wild-type and non-differentiated mutant fruiting bodies revealed conserved differentially expressed genes which may be related to tissue differentiation and developmental patterning fruiting body development.
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Affiliation(s)
- Csenge Földi
- Synthetic and Systems Biology Unit, Institute of Biochemistry, HUN-REN Biological Research Center, Szeged, Hungary
- Doctoral School of Biology, Faculty of Science and Informatics, University of Szeged, Szeged, Hungary
| | - Zsolt Merényi
- Synthetic and Systems Biology Unit, Institute of Biochemistry, HUN-REN Biological Research Center, Szeged, Hungary
| | - Bálint Balázs
- Synthetic and Systems Biology Unit, Institute of Biochemistry, HUN-REN Biological Research Center, Szeged, Hungary
| | - Árpád Csernetics
- Synthetic and Systems Biology Unit, Institute of Biochemistry, HUN-REN Biological Research Center, Szeged, Hungary
| | - Nikolett Miklovics
- Synthetic and Systems Biology Unit, Institute of Biochemistry, HUN-REN Biological Research Center, Szeged, Hungary
| | - Hongli Wu
- Synthetic and Systems Biology Unit, Institute of Biochemistry, HUN-REN Biological Research Center, Szeged, Hungary
| | - Botond Hegedüs
- Synthetic and Systems Biology Unit, Institute of Biochemistry, HUN-REN Biological Research Center, Szeged, Hungary
| | - Máté Virágh
- Synthetic and Systems Biology Unit, Institute of Biochemistry, HUN-REN Biological Research Center, Szeged, Hungary
| | - Zhihao Hou
- Synthetic and Systems Biology Unit, Institute of Biochemistry, HUN-REN Biological Research Center, Szeged, Hungary
| | - Xiao-Bin Liu
- Synthetic and Systems Biology Unit, Institute of Biochemistry, HUN-REN Biological Research Center, Szeged, Hungary
| | - László Galgóczy
- Synthetic and Systems Biology Unit, Institute of Biochemistry, HUN-REN Biological Research Center, Szeged, Hungary
- Department of Biotechnology, Faculty of Science and Informatics, University of Szeged, Szeged, Hungary
| | - László G. Nagy
- Synthetic and Systems Biology Unit, Institute of Biochemistry, HUN-REN Biological Research Center, Szeged, Hungary
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Deng W, Jiang Y, Qin J, Chen G, Lv Y, Lei Y, Luo J, Hong K, Huang B, Qin L, Tang X, Ye L, Dang Y, Wang C, Long F, Wang K, Kong J. Metagenomic Next-Generation Sequencing Assists in the Diagnosis of Mediastinal Aspergillus fumigatus Abscess in an Immunocompetent Patient: A Case Report and Literature Review. Infect Drug Resist 2023; 16:1865-1874. [PMID: 37020798 PMCID: PMC10069495 DOI: 10.2147/idr.s399484] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Accepted: 03/06/2023] [Indexed: 03/31/2023] Open
Abstract
Background Aspergillus fumigatus is an opportunistic fungal pathogen, which is commonly found in lungs and rarely causes infections in mediastinum. Mediastinal Aspergillus abscess is a serious infectious condition, and is characterized by difficult diagnosis due to its clinical manifestations being nonspecific. Case Presentation Here, we report a case of a mediastinal Aspergillus fumigatus abscess in an immunocompetent patient. The patient was a 45-year-old woman who presented with a 20-day history of sore throat without any underlying diseases. Chest computed tomography (CT) showed a mass in the anterior superior mediastinum. Metagenomic next-generation sequencing (mNGS) identified Aspergillus fumigatus sequences in endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) tissue, indicating the mediastinal Aspergillus fumigatus infection of this patient. The following mediastinal biopsy histological analysis and tissue fungi culture also suggested Aspergillus fumigatus infection, confirming the mNGS detection. The patient was diagnosed with mediastinal aspergillosis caused by Aspergillus fumigatus. After timely voriconazole treatment, the patient was discharged with good condition. Conclusion Our study presented a rare case with mediastinal Aspergillus fumigatus abscess in an immunocompetent patient. As a new clinical diagnostic method, mNGS could assist timely diagnosis and precise treatment of Aspergillus infection.
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Affiliation(s)
- Wusheng Deng
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, People’s Republic of China
| | - Yun Jiang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Shaoyang University, Shaoyang, Hunan, People’s Republic of China
| | - Jiaoxia Qin
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, People’s Republic of China
| | - Gang Chen
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, People’s Republic of China
| | - Yongjie Lv
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, People’s Republic of China
| | - Yanmei Lei
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, People’s Republic of China
| | - Jing Luo
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, People’s Republic of China
| | - Kangkang Hong
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, People’s Republic of China
| | - Bing Huang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, People’s Republic of China
| | - Luhai Qin
- Department of Pulmonology, Hechi Traditional Chinese Medicine Hospital, Hechi, Guangxi, People’s Republic of China
| | - Xiujia Tang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, People’s Republic of China
| | - Liumei Ye
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, People’s Republic of China
| | - Yuhai Dang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, People’s Republic of China
| | - Chao Wang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, People’s Republic of China
| | - Feiyang Long
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, People’s Republic of China
| | - Ke Wang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, People’s Republic of China
| | - Jinliang Kong
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, People’s Republic of China
- Correspondence: Jinliang Kong; Ke Wang, Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Guangxi Medical University, No. 6 Shuangyong Road, Nanning, 530021, People’s Republic of China, Email ;
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Safari Motlagh MR, Jahangiri B, Kulus D, Tymoszuk A, Kaviani B. Endophytic Fungi as Potential Biocontrol Agents against Rhizoctonia solani J.G. Kühn, the Causal Agent of Rice Sheath Blight Disease. BIOLOGY 2022; 11:biology11091282. [PMID: 36138761 PMCID: PMC9495574 DOI: 10.3390/biology11091282] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 08/25/2022] [Accepted: 08/25/2022] [Indexed: 11/20/2022]
Abstract
Simple Summary Rice, together with wheat and corn, is among the most important food crops for mankind. Half of the world’s population consumes rice, mainly in Asia, southern Europe, tropical America, and parts of Africa. Rice sheath blight, caused by Rhizoctonia solani, is one of the main diseases in rice production. The control of this pathogen is difficult due to its ecological behavior, broad host range, and the high survival rate of sclerotia under various environmental conditions. In this research, after morphological and molecular identification of fungal isolates, five superior isolates, including Trichoderma virens, Trichoderma harzianum, Curvularia lunata, Aspergillus fumigatus, and Aspergillus awamori were studied in the in vitro and greenhouse trials, towards their potential to inhibit R. solani. The statistical analysis showed a significant difference between the effectiveness of fungi used in the volatile metabolites assay and in terms of height and fresh weight of plants in the greenhouse. It can be concluded that T. virens and A. fumigatus are the most effective antagonists in rice sheath blight disease control. Abstract The rice sheath blight disease, caused by Rhizoctonia solani J.G. Kühn fungus, is a major disease of Oryza sativa L. occurring all over the world. Therefore, efforts need to be undertaken to limit the spread of this pathogen, preferably by using environmentally friendly methods. In the present study, 57 fungal isolates were recovered by surface sterilization technique from 120 rice samples collected from paddy fields in Guilan province, Iran. Biological characterizations of the isolated taxa were performed in vitro, in the dual culture, volatile metabolites, and slide culture methods. Among the studied isolates, Trichoderma virens (J. H. Miller, Giddens and A. A. Foster) Arx was most effective in inhibiting the mycelial growth of R. solani in the dual culture (44.16% inhibition level), while Aspergillus fumigatus Fresen and T. virens had a 62.50–68.75% inhibition efficiency by volatile metabolites. In the slide culture, all of the isolates, except for T. harzianum Rifai, were effective in inhibiting the hyphae growth of R. solani. Under greenhouse conditions, rice plants inoculated with these potential antagonistic fungi showed a reduction in disease severity by even 41.4% as in the case of T. virens. Moreover, phenotypic properties of rice, such as plant height, fresh weight, and dry weight were increased in the plants inoculated with all antagonistic fungi tested, compared to the infected plants, except for the fresh weight of plants inoculated with Curnularia lunata (Wakker) Boedijn. The present in vivo and in vitro studies revealed that T. virens and A. fumigatus are the most effective antagonists in rice sheath blight disease control and could be applied in agricultural practice.
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Affiliation(s)
- Mohammad Reza Safari Motlagh
- Department of Plant Protection, Faculty of Agriculture, Rasht Branch, Islamic Azad University, Rasht 4147654919, Iran
- Correspondence: or (M.R.S.M.); (A.T.); Tel.: +48-52-374-95-64 (A.T.)
| | - Bahar Jahangiri
- Department of Plant Protection, Faculty of Agriculture, Mehrgan Institute for High Education, Mahallat 3781654363, Iran
| | - Dariusz Kulus
- Laboratory of Ornamental Plants and Vegetable Crops, Faculty of Agriculture and Biotechnology, Bydgoszcz University of Science and Technology, Bernardyńska 6, 85-029 Bydgoszcz, Poland
| | - Alicja Tymoszuk
- Laboratory of Ornamental Plants and Vegetable Crops, Faculty of Agriculture and Biotechnology, Bydgoszcz University of Science and Technology, Bernardyńska 6, 85-029 Bydgoszcz, Poland
- Correspondence: or (M.R.S.M.); (A.T.); Tel.: +48-52-374-95-64 (A.T.)
| | - Behzad Kaviani
- Department of Horticultural Science, Rasht Branch, Islamic Azad University, Rasht 4147654919, Iran
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