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Armand A, Khodaparast SA, Nazari S, Zibaee A. Morpho-molecular study of entomopathogenic fungi associated with citrus orchard pests in Northern Iran. Arch Microbiol 2024; 206:202. [PMID: 38568380 DOI: 10.1007/s00203-024-03944-2] [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: 12/17/2023] [Revised: 03/21/2024] [Accepted: 03/26/2024] [Indexed: 04/05/2024]
Abstract
Entomopathogenic fungi play a significant role in regulating insect populations in nature and have potential applications in pest management strategies in different regions. Citrus spp. are among the important horticultural products in northern Iran, and the orchards are affected by different insect pests, especially mealybugs. This study aimed to isolate and identify entomopathogenic fungi associated with citrus orchard pests in northern Iran, focusing on Akanthomyces and Lecanicillium species on mealybugs. Through the samples collected from different regions within Guilan province, 12 fungal isolates were collected and identified based on the combination of morphological characteristics and molecular data. Akanthomyces lecanii, A. muscarius, Engyodontium rectidentatum, Lecanicillium aphanocladii and Lecanicillium rasoulzarei sp. nov. were identified. Of these, A. muscarius on Lepidosaphes sp., E. rectidentatum on Coccidae, and L. aphanocladii on Tetranychus urticae are reported as new fungal-host records from Iran. Moreover, a new species, Lecanicillium rasoulzarei, is illustrated, described, and compared with closely related species.
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Affiliation(s)
- Alireza Armand
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, 57100, Thailand
- School of Science, Mae Fah Luang University, Chiang Rai, 57100, Thailand
| | - Seyed Akbar Khodaparast
- Department of Plant Protection, Faculty of Agricultural Sciences, University of Guilan, Rasht, Iran.
| | - Saeed Nazari
- Department of Plant Protection, Faculty of Agricultural Sciences, University of Guilan, Rasht, Iran
| | - Arash Zibaee
- Department of Plant Protection, Faculty of Agricultural Sciences, University of Guilan, Rasht, Iran
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Wang Y, Wang ZQ, Luo R, Souvanhnachit S, Thanarut C, Dao VM, Yu H. Species diversity and major host/substrate associations of the genus Akanthomyces (Hypocreales, Cordycipitaceae). MycoKeys 2024; 101:113-141. [PMID: 38269036 PMCID: PMC10806914 DOI: 10.3897/mycokeys.101.109751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Accepted: 12/19/2023] [Indexed: 01/26/2024] Open
Abstract
Akanthomyces, a group of fungi with rich morphological and ecological diversity in Cordycipitaceae (Ascomycota, Hypocreales), has a wide distribution amongst diverse habitats. By surveying arthropod-pathogenic fungi in China and Southeast Asia over the last six years, nine Akanthomyces spp. were found and identified. Five of these were shown to represent four known species and an undetermined species of Akanthomyces. Four of these were new species and they were named A.kunmingensis and A.subaraneicola from China, A.laosensis from Laos and A.pseudonoctuidarum from Thailand. The new species were described and illustrated according to the morphological characteristics and molecular data. Akanthomycesaraneogenus, which was isolated from spiders from different regions in China, Thailand and Vietnam, was described as a newly-recorded species from Thailand and Vietnam. The phylogenetic positions of the nine species were evaluated, based on phylogenetic inferences according to five loci, namely, ITS, nrLSU, TEF, RPB1 and RPB2. In this study, we reviewed the research progress achieved for Akanthomyces regarding its taxonomy, species diversity, geographic distribution and major host/substrate associations. The morphological characteristics of 35 species in Akanthomyces, including four novel species and 31 known taxa, were also compared.
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Affiliation(s)
- Yao Wang
- Yunnan Herbal Laboratory, College of Ecology and Environmental Sciences, Yunnan University, Kunming, Yunnan, China
| | - Zhi-Qin Wang
- Yunnan Herbal Laboratory, College of Ecology and Environmental Sciences, Yunnan University, Kunming, Yunnan, China
| | - Run Luo
- Yunnan Herbal Laboratory, College of Ecology and Environmental Sciences, Yunnan University, Kunming, Yunnan, China
| | - Sisommay Souvanhnachit
- Yunnan Herbal Laboratory, College of Ecology and Environmental Sciences, Yunnan University, Kunming, Yunnan, China
| | - Chinnapan Thanarut
- The International Joint Research Center for Sustainable Utilization of Cordyceps Bioresources in China and Southeast Asia, Yunnan University, Kunming, Yunnan, China
| | - Van-Minh Dao
- Faculty of Agricultural Production, Maejo University, Chiang Mai, Thailand
| | - Hong Yu
- Yunnan Herbal Laboratory, College of Ecology and Environmental Sciences, Yunnan University, Kunming, Yunnan, China
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Wang Y, Wang ZQ, Thanarut C, Dao VM, Wang YB, Yu H. Phylogeny and species delimitations in the economically, medically, and ecologically important genus Samsoniella (Cordycipitaceae, Hypocreales). MycoKeys 2023; 99:227-250. [PMID: 37828936 PMCID: PMC10565569 DOI: 10.3897/mycokeys.99.106474] [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: 05/16/2023] [Accepted: 09/11/2023] [Indexed: 10/14/2023] Open
Abstract
Samsoniella is a ubiquitous genus of cosmopolitan arthropod-pathogenic fungi in the family Cordycipitaceae. The fungi have economic, medicinal, and ecological importance. Prior taxonomic studies of these fungi relied predominantly on phylogenetic inferences from five loci, namely, the nuclear ribosomal small and large subunits (nr SSU and nr LSU), the 3' portion of translation elongation factor 1 alpha (3P_TEF), and RNA polymerase II subunits 1 and 2 (RPB1 and RPB2). Despite many new species being described, not all of the recognized species inside this group formed well-supported clades. Thus, the search for new markers appropriate for molecular phylogenetic analysis of Samsoniella remains a challenging problem. In our study, we selected the internal transcribed spacer regions of the rDNA (ITS rDNA) and seven gene regions, namely, 3P_TEF, the 5' portion of translation elongation factor 1 alpha (5P_TEF), RPB1, RPB2, γ-actin (ACT), β-tubulin (TUB), and a gene encoding a minichromosome maintenance protein (MCM7), as candidate markers for species identification. Genetic divergence comparisons showed that the ITS, RPB2, ACT, and TUB sequences provided little valuable information with which to separate Samsoniella spp. In contrast, sequence data for 3P_TEF, 5P_TEF, RPB1, and MCM7 provided good resolution of Samsoniella species. The phylogenetic tree inferred from combined data (5P_TEF + 3P_TEF + RPB1 + MCM7) showed well-supported clades for Samsoniella and allowed for the delimitation of 26 species in this genus. The other two species (S.formicae and S.lepidopterorum) were not evaluated, as they had abundant missing data.
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Affiliation(s)
- Yao Wang
- Yunnan Herbal Laboratory, College of Ecology and Environmental Sciences, Yunnan University, Kunming 650504, China
| | - Zhi-Qin Wang
- Yunnan Herbal Laboratory, College of Ecology and Environmental Sciences, Yunnan University, Kunming 650504, China
| | - Chinnapan Thanarut
- The International Joint Research Center for Sustainable Utilization of Cordyceps Bioresources in China and Southeast Asia, Yunnan University, Kunming 650504, China
| | - Van-Minh Dao
- Faculty of Agricultural Production, Maejo University, Chiang Mai 50290, Thailand
| | - Yuan-Bing Wang
- Yunnan Herbal Laboratory, College of Ecology and Environmental Sciences, Yunnan University, Kunming 650504, China
| | - Hong Yu
- Yunnan Herbal Laboratory, College of Ecology and Environmental Sciences, Yunnan University, Kunming 650504, China
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Chen WH, Liang JD, Ren XX, Zhao JH, Han YF. Two new species of Samsoniella (Cordycipitaceae, Hypocreales) from the Mayao River Valley, Guizhou, China. MycoKeys 2023; 99:209-226. [PMID: 37744955 PMCID: PMC10517413 DOI: 10.3897/mycokeys.99.109961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Accepted: 08/31/2023] [Indexed: 09/26/2023] Open
Abstract
Samsoniella species have been often found in the forest habitat and rarely found in special karst eco-environments, such as Tiankeng, valleys and caves. In this research, eleven cordyceps specimens were collected from Mayao River Valley. A known species (S.haniana) and two new species (S.duyunensis and S.vallis) were established and described according to a multilocus phylogenetic analysis and morphological characteristics. Our results provide insight that the richness of Samsoniella species in karst eco-environments and further attention should be paid to entomopathogenic fungi in such habitats.
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Affiliation(s)
- Wan-Hao Chen
- Center for Mycomedicine Research, Basic Medical School, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, Guizhou, ChinaGuizhou University of Traditional Chinese MedicineGuiyangChina
| | - Jian-Dong Liang
- Center for Mycomedicine Research, Basic Medical School, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, Guizhou, ChinaGuizhou University of Traditional Chinese MedicineGuiyangChina
| | - Xiu-Xiu Ren
- Center for Mycomedicine Research, Basic Medical School, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, Guizhou, ChinaGuizhou University of Traditional Chinese MedicineGuiyangChina
| | - Jie-Hong Zhao
- Center for Mycomedicine Research, Basic Medical School, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, Guizhou, ChinaGuizhou University of Traditional Chinese MedicineGuiyangChina
| | - Yan-Feng Han
- Institute of Fungus Resources, Department of Ecology, College of Life Sciences, Guizhou University, Guiyang 550025, Guizhou, ChinaGuizhou UniversityGuiyangChina
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Chen WH, Liang JD, Ren XX, Zhao JH, Han YF. Study on species diversity of Akanthomyces (Cordycipitaceae, Hypocreales) in the Jinyun Mountains, Chongqing, China. MycoKeys 2023; 98:299-315. [PMID: 37547126 PMCID: PMC10403762 DOI: 10.3897/mycokeys.98.106415] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 07/16/2023] [Indexed: 08/08/2023] Open
Abstract
Akanthomyces species have only been reported from Guizhou and Qinghai Province, with few reports from other regions in China. In this research, the species diversity of Akanthomyces in the Jinyun Mountains, Chongqing was investigated. Fourteen infected spider specimens were collected and two new species (A.bashanensis and A.beibeiensis) and a known species (A.tiankengensis) were established and described according to a multi-locus phylogenetic analysis and the morphological characteristics. Our results reveal abundant Akanthomyces specimens and three species were found at Jinyun Mountain. Due to its being an important kind of entomopathogenic fungi, further attention needs to be paid to the diversity of other entomopathogenic fungi in Chongqing, China.
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Affiliation(s)
- Wan-Hao Chen
- Center for Mycomedicine Research, Basic Medical School, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, Guizhou, ChinaGuizhou University of Traditional Chinese MedicineGuiyangChina
| | - Jian-Dong Liang
- Center for Mycomedicine Research, Basic Medical School, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, Guizhou, ChinaGuizhou University of Traditional Chinese MedicineGuiyangChina
| | - Xiu-Xiu Ren
- Center for Mycomedicine Research, Basic Medical School, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, Guizhou, ChinaGuizhou University of Traditional Chinese MedicineGuiyangChina
| | - Jie-Hong Zhao
- Center for Mycomedicine Research, Basic Medical School, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, Guizhou, ChinaGuizhou University of Traditional Chinese MedicineGuiyangChina
| | - Yan-Feng Han
- Institute of Fungus Resources, Department of Ecology, College of Life Sciences, Guizhou University, Guiyang 550025, Guizhou, ChinaGuizhou UniversityGuiyangChina
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