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Nie Y, Cai Y, Zhao H, Zhou Z, Zhao C, Liu X, Huang B. Morphological and phylogenetic analyses reveal two new species in Conidiobolus s.s. (Conidiobolaceae, Entomophthorales) from China. MycoKeys 2023; 98:221-232. [PMID: 37456576 PMCID: PMC10339111 DOI: 10.3897/mycokeys.98.103603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Accepted: 06/23/2023] [Indexed: 07/18/2023] Open
Abstract
The genus Conidiobolus s.s. (Conidiobolaceae, Entomophthorales) has been delimited to accommodate members that produce microspores. Herein, morphological studies, combined with phylogenetic analysis based on the nuclear large subunit of rDNA (nucLSU), the mitochondrial small subunit of rDNA (mtSSU), and the elongation-factor-like gene (EFL) revealed two Conidiobolus s.s. species isolated from plant debris in China. Conidioboluslongiconidiophorussp. nov. is mainly characterised by its long primary conidiophores, while Conidioboluspolysporussp. nov. is diagnosed by 2-3 primary conidia arising from branched primary conidiophores. Phylogenetically, the former is grouped into a separate clade, while the latter is closely related to C.incongruus, but is morphologically distinguished by its larger primary conidia and branched conidiophores.
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Affiliation(s)
- Yong Nie
- Anhui Provincial Key Laboratory for Microbial Pest Control, Anhui Agricultural University, Hefei 230036, ChinaAnhui Agricultural UniversityHefeiChina
- School of Civil Engineering and Architecture, Anhui University of Technology, Ma'anshan 243002, ChinaAnhui University of TechnologyMa'anshanChina
| | - Yue Cai
- Department of Biological and Environmental Engineering, Hefei University, Hefei 230601, ChinaHefei UniversityHefeiChina
| | - Heng Zhao
- Institute of Microbiology, School of Ecology and Nature Conservation, Beijing Forestry University, Beijing 100083, ChinaBeijing Forestry UniversityBeijingChina
| | - ZhengYu Zhou
- School of Civil Engineering and Architecture, Anhui University of Technology, Ma'anshan 243002, ChinaAnhui University of TechnologyMa'anshanChina
| | - ChangWei Zhao
- School of Civil Engineering and Architecture, Anhui University of Technology, Ma'anshan 243002, ChinaAnhui University of TechnologyMa'anshanChina
| | - XiaoYong Liu
- College of Life Sciences, Shandong Normal University, Jinan 250014, ChinaShandong Normal UniversityJinanChina
| | - Bo Huang
- Anhui Provincial Key Laboratory for Microbial Pest Control, Anhui Agricultural University, Hefei 230036, ChinaAnhui Agricultural UniversityHefeiChina
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Nie Y, Wang ZM, Liu XY, Huang B. A morphological and molecular survey of Neoconidiobolus reveals a new species and two new combinations. Mycol Prog 2021. [DOI: 10.1007/s11557-021-01720-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Goffre D, Jensen AB, Lopez Lastra CC, Humber RA, Folgarait PJ. Conidiobolus lunulus, a new entomophthoralean species isolated from leafcutter ants. Mycologia 2020; 113:56-64. [PMID: 33151805 DOI: 10.1080/00275514.2020.1816387] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Entomophthoralean fungi with pathogenic abilities to infect social insects are rare. Here, we describe a fungus isolated from leafcutter ants. Morphologically, the fungus has spherical primary conidia and two types of microconidia: one with the same shape as the primary conidia and another with an elliptical to half-moon shape. The fungus also produces villose conidia known previously only from Conidiobolus coronatus. A multilocus phylogenetic analysis was performed with nuc rDNA sequences from three regions (28S, 18S, and internal transcribed spacer [ITS]). Our isolates are distinguished as a new species, described here as Conidiobolus lunulus, and is more closely related to C. brefeldianus than to C. coronatus, despite the greater morphological resemblance to the latter. Morphological differences, unique phylogenetic placement, and isolation from an altogether new host support this finding. This is the first record of an entomophthoralean species isolated from leafcutter ants.
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Affiliation(s)
- D Goffre
- Ants Laboratory, Department of Science and Technology, Quilmes National University , CONICET, Roque Saenz Peña 352, Bernal B1876BXD, Buenos Aires, Argentina
| | - A B Jensen
- Department of Plant and Environmental Science, University of Copenhagen, Frederiksberg Campus , Copenhagen, Denmark
| | - C C Lopez Lastra
- Centro de Estudios Parasitológicos y de Vectores, CONICET-Universidad Nacional de La Plata , La Plata, Argentina
| | - R A Humber
- Emerging Pests and Pathogens Research, Robert W. Holley Center for Agriculture and Health , Ithaca, New York 14853
| | - P J Folgarait
- Ants Laboratory, Department of Science and Technology, Quilmes National University , CONICET, Roque Saenz Peña 352, Bernal B1876BXD, Buenos Aires, Argentina
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Nie Y, Cai Y, Gao Y, Yu DS, Wang ZM, Liu XY, Huang B. Three new species of Conidiobolus sensu stricto from plant debris in eastern China. MycoKeys 2020; 73:133-149. [PMID: 33117082 PMCID: PMC7561611 DOI: 10.3897/mycokeys.73.56905] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Accepted: 09/23/2020] [Indexed: 11/12/2022] Open
Abstract
The genus Conidiobolus Bref. is widely distributed and the Conidiobolus sensu lato contained three other genera, Capillidium, Microconidiobolus and Neoconidiobolus. A molecular phylogeny based on the nuclear large subunit of rDNA (nucLSU), the mitochondrial small subunit of rDNA (mtSSU) and the translation elongation factor 1-alpha gene (TEF1) revealed three novel species within the clade of Conidiobolus s.s., i.e. C. bifurcatus sp. nov., C. taihushanensis sp. nov. and C. variabilis sp. nov. These three species were isolated from plant debris in eastern China. Morphologically, C. bifurcatus sp. nov. is characterised by its secondary conidiophores often branched at the tip to form two short stipes each bearing a secondary conidium. C. taihushanensis sp. nov. is different from the others in its straight apical mycelia and the production of 2-5 conidia. C. variabilis sp. nov. is distinctive because of its various shapes of primary conidia. All these three new taxa are illustrated herein with an update key to the species of the genus Conidiobolus s.s.
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Affiliation(s)
- Yong Nie
- Anhui Provincial Key Laboratory for Microbial Pest Control, Anhui Agricultural University, Hefei 230036, China.,School of Civil Engineering and Architecture, Anhui University of Technology, Ma'anshan 243002, China
| | - Yue Cai
- Department of Biological and Environmental Engineering, Hefei University, Hefei 230601, China
| | - Yang Gao
- Bioengineering and Technological Research Centre for Edible and Medicinal Fungi, Jiangxi Agricultural University, Nanchang, 330045, China
| | - De-Shui Yu
- Anhui Provincial Key Laboratory for Microbial Pest Control, Anhui Agricultural University, Hefei 230036, China
| | - Zi-Min Wang
- School of Civil Engineering and Architecture, Anhui University of Technology, Ma'anshan 243002, China
| | - Xiao-Yong Liu
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
| | - Bo Huang
- Anhui Provincial Key Laboratory for Microbial Pest Control, Anhui Agricultural University, Hefei 230036, China
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Nie Y, Yu DS, Wang CF, Liu XY, Huang B. A taxonomic revision of the genus Conidiobolus (Ancylistaceae, Entomophthorales): four clades including three new genera. MycoKeys 2020; 66:55-81. [PMID: 32273794 PMCID: PMC7136305 DOI: 10.3897/mycokeys.66.46575] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2019] [Accepted: 03/13/2020] [Indexed: 11/12/2022] Open
Abstract
The genus Conidiobolus is an important group in entomophthoroid fungi and is considered to be polyphyletic in recent molecular phylogenies. To re-evaluate and delimit this genus, multi-locus phylogenetic analyses were performed using the large and small subunits of nuclear ribosomal DNA (nucLSU and nucSSU), the small subunit of the mitochondrial ribosomal DNA (mtSSU) and the translation elongation factor 1-alpha (EF-1α). The results indicated that the Conidiobolus is not monophyletic, being grouped into a paraphyletic grade with four clades. Consequently, the well-known Conidiobolus is revised and three new genera Capillidium, Microconidiobolus and Neoconidiobolus are proposed along with one new record and 22 new combinations. In addition, the genus Basidiobolus is found to be basal to the other entomophthoroid taxa and the genus Batkoa locates in the Entomophthoraceae clade.
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Affiliation(s)
- Yong Nie
- Anhui Provincial Key Laboratory for Microbial Pest Control, Anhui Agricultural University, Hefei 230036, ChinaAnhui Agricultural UniversityHefeiChina
- School of Civil Engineering and Architecture, Anhui University of Technology, Ma’anshan 243002, ChinaAnhui University of TechnologyMa’anshanChina
| | - De-Shui Yu
- Anhui Provincial Key Laboratory for Microbial Pest Control, Anhui Agricultural University, Hefei 230036, ChinaAnhui Agricultural UniversityHefeiChina
| | - Cheng-Fang Wang
- Anhui Provincial Key Laboratory for Microbial Pest Control, Anhui Agricultural University, Hefei 230036, ChinaAnhui Agricultural UniversityHefeiChina
| | - Xiao-Yong Liu
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, ChinaInstitute of Microbiology, Chinese Academy of SciencesBeijingChina
| | - Bo Huang
- Anhui Provincial Key Laboratory for Microbial Pest Control, Anhui Agricultural University, Hefei 230036, ChinaAnhui Agricultural UniversityHefeiChina
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Nie Y, Wang L, Cai Y, Tao W, Zhang YJ, Huang B. Mitochondrial genome of the entomophthoroid fungus Conidiobolus heterosporus provides insights into evolution of basal fungi. Appl Microbiol Biotechnol 2018; 103:1379-1391. [PMID: 30569217 DOI: 10.1007/s00253-018-9549-5] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Revised: 11/26/2018] [Accepted: 11/27/2018] [Indexed: 02/02/2023]
Abstract
Entomophthoroid fungi represent an ecologically important group of fungal pathogens on insects. Here, the whole mitogenome of Conidiobolus heterosporus, one of the entomophthoroid fungi, was described and compared to those early branching fungi with available mitogenomes. The 53,364-bp circular mitogenome of C. heterosporus contained two rRNA genes, 14 standard protein-coding genes, 26 tRNA genes, and three free-standing ORFs. Thirty introns interrupted nine mitochondrial genes. Phylogenetic analysis based on mitochondrion-encoded proteins revealed that C. heterosporus was most close to Zancudomyces culisetae in the Zoopagomycota of basal fungi. Comparison on mitogenomes of 23 basal fungi revealed great variabilities in terms of mitogenome conformation (circular or linear), genetic code (codes 1, 4, or 16), AT contents (53.3-85.5%), etc. These mitogenomes varied from 12.0 to 97.3 kb in sizes, mainly due to different numbers of genes and introns. They showed frequent DNA rearrangement events and a high variability of gene order, although high synteny and conserved gene order were also present between closely related species. By reporting the first mitogenome in Entomophthoromycotina and the second in Zoopagomycota, this study greatly enhanced our understanding on evolution of basal fungi.
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Affiliation(s)
- Yong Nie
- Anhui Provincial Key Laboratory of Microbial Pest Control, Anhui Agricultural University, Hefei, 230036, China.,School of Civil Engineering and Architecture, Anhui University of Technology, Ma'anshan, 243002, China
| | - Lin Wang
- School of Life Science, Shanxi University, Taiyuan, 030006, China
| | - Yue Cai
- Department of Biological and Environmental Engineering, Hefei University, Hefei, 230601, China
| | - Wei Tao
- School of Forestry and Landscape Architecture, Anhui Agricultural University, Hefei, 230036, China
| | - Yong-Jie Zhang
- School of Life Science, Shanxi University, Taiyuan, 030006, China.
| | - Bo Huang
- Anhui Provincial Key Laboratory of Microbial Pest Control, Anhui Agricultural University, Hefei, 230036, China.
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Nie Y, Qin L, Yu DS, Liu XY, Huang B. Two new species of Conidiobolus occurring in Anhui, China. Mycol Prog 2018. [DOI: 10.1007/s11557-018-1436-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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