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Gallardo-Pillancari E, González C, Barahona-Segovia RM, Ruiz C, Luz C, Humber RA, Montalva C. Natural infection of Chiromyzinae larvae (Diptera: Stratiomyidae) in southern Chile by Tolypocladium valdiviae sp. nov. Fungal Biol 2023; 127:845-853. [PMID: 36746556 DOI: 10.1016/j.funbio.2022.12.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 12/20/2022] [Accepted: 12/21/2022] [Indexed: 12/26/2022]
Abstract
A new species from the fungal genus Tolypocladium (Hypocreales: Ophiocordycipitaceae) that infects Stratiomyidae larva from the genus Hylorops is described: Tolypocladium valdiviae Gallardo-Pillancari, Montalva & González. The description is based on both genomic data and morphological characteristics. The sexual stage of T. valdiviae presents fleshy and visible stromata; unlike Tolypocladium ophioglossoides, it is smaller and emerges directly from its host and resembles Tolypocladium longisegmentis and Tolypocladium capitatum, both of which are parasites of deer truffle fungi of the genus Elaphomyces (Ascomycota: Eurotiales). In the anamorphic state, T. valdiviae presents conidiogenous cells similar in shape and arrangement to those of Tolypocladium inflatum, however T. valdiviae produces larger conidiogenous cells and, occasionally, produces chlamydospores. Phylogenetic evidence suggested that T. valdiviae is in a clade close to T. longisegmentis, T. inflatum and T. ophioglossoides, species also recognized to be parasites of fungi of the genus Elaphomyces. The new species is known so far only from Valdivia, southern Chile.
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Affiliation(s)
- Esteban Gallardo-Pillancari
- Laboratorio de Salud de Bosques, Instituto de Conservación, Biodiversidad y Territorio, Facultad de Ciencias Forestales y Recursos Naturales, Universidad Austral de Chile, Valdivia, Chile; Laboratorio de Biodiversidad y Ecología Del Dosel, Instituto de Conservación, Biodiversidad y Territorio, Facultad de Ciencias Forestales y Recursos Naturales, Universidad Austral de Chile, Valdivia, Chile.
| | - Cristian González
- Laboratorio de Salud de Bosques, Instituto de Conservación, Biodiversidad y Territorio, Facultad de Ciencias Forestales y Recursos Naturales, Universidad Austral de Chile, Valdivia, Chile
| | - Rodrigo M Barahona-Segovia
- Departamento de Ciencias Biológicas y Biodiversidad, Universidad de Los Lagos, Av. Fuschlöcher, 1305, Osorno, Chile
| | - Cecilia Ruiz
- Laboratorio de Salud de Bosques, Instituto de Conservación, Biodiversidad y Territorio, Facultad de Ciencias Forestales y Recursos Naturales, Universidad Austral de Chile, Valdivia, Chile
| | - Christian Luz
- Instituto de Patologia Tropical e Saúde Pública (IPTSP), Universidade Federal de Goiás (UFG), Goiânia, Goiás, Brazil
| | - Richard A Humber
- USDA-ARS Emerging Pests and Pathogens Research Unit, Robert W. Holley Center for Agriculture and Health, Ithaca, NY, USA
| | - Cristian Montalva
- Laboratorio de Salud de Bosques, Instituto de Conservación, Biodiversidad y Territorio, Facultad de Ciencias Forestales y Recursos Naturales, Universidad Austral de Chile, Valdivia, Chile.
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Dong QY, Wang Y, Wang ZQ, Liu YF, Yu H. Phylogeny and Systematics of the Genus Tolypocladium (Ophiocordycipitaceae, Hypocreales). J Fungi (Basel) 2022; 8:1158. [PMID: 36354925 PMCID: PMC9697939 DOI: 10.3390/jof8111158] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 10/29/2022] [Accepted: 10/30/2022] [Indexed: 11/14/2023] Open
Abstract
The taxonomy and phylogeny of the genus Tolypocladium are herein revised based on the most comprehensive dataset to date. Two species-level phylogenies of Tolypocladium were constructed: a single-gene phylogeny (ITS) of 35 accepted species and a multigene phylogeny (nrSSU, nrLSU, tef-1α, rpb1, and rpb2) of 27 accepted species. Three new species, Tolypocladium pseudoalbum sp. nov., Tolypocladium subparadoxum sp. nov., and Tolypocladium yunnanense sp. nov., are described in the present study. The genetic divergences of four markers (ITS, tef-1α, rpb1 and rpb2) among Tolypocladium species are also reported. The results indicated that species of Tolypocladium were best delimited by rpb1 sequence data, followed by the sequence data for the rpb2, tef-1α, and ITS provided regions. Finally, a key to the 48 accepted species of Tolypocladium worldwide is provided.
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Affiliation(s)
- Quan-Ying Dong
- Yunnan Herbal Laboratory, College of Ecology and Environmental Sciences, Yunnan University, Kunming 650504, China
- The International Joint Research Center for Sustainable Utilization of Cordyceps Bioresources in China and Southeast Asia, Yunnan University, Kunming 650504, China
| | - 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
- The International Joint Research Center for Sustainable Utilization of Cordyceps Bioresources in China and Southeast Asia, Yunnan University, Kunming 650504, China
| | - Yan-Fang Liu
- The International Joint Research Center for Sustainable Utilization of Cordyceps Bioresources in China and Southeast Asia, Yunnan University, Kunming 650504, China
| | - Hong Yu
- The International Joint Research Center for Sustainable Utilization of Cordyceps Bioresources in China and Southeast Asia, Yunnan University, Kunming 650504, China
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Tolypocladium reniformisporum sp. nov. and Tolypocladium cylindrosporum (Ophiocordycipitaceae, Hypocreales) co-occurring on Ophiocordyceps sinensis. Mycol Prog 2022. [DOI: 10.1007/s11557-021-01675-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Untereiner WA, Yue Q, Chen L, Li Y, Bills GF, Štěpánek V, Réblová M. PhialophorasectionCatenulataedisassembled: New genera, species, and combinations and a new family encompassing taxa with cleistothecial ascomata and phialidic asexual states. Mycologia 2019; 111:998-1027. [DOI: 10.1080/00275514.2019.1663106] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
| | - Qun Yue
- Texas Therapeutics Institute, The Brown Foundation Institute of Molecular Medicine, University of Texas Health Science Center, 1881 East Road, Houston, Texas 77054
| | - Li Chen
- Texas Therapeutics Institute, The Brown Foundation Institute of Molecular Medicine, University of Texas Health Science Center, 1881 East Road, Houston, Texas 77054
| | - Yan Li
- Texas Therapeutics Institute, The Brown Foundation Institute of Molecular Medicine, University of Texas Health Science Center, 1881 East Road, Houston, Texas 77054
| | - Gerald F. Bills
- Texas Therapeutics Institute, The Brown Foundation Institute of Molecular Medicine, University of Texas Health Science Center, 1881 East Road, Houston, Texas 77054
| | - Václav Štěpánek
- Institute of Microbiology, Czech Academy of Sciences, Prague 142 20, Czech Republic
| | - Martina Réblová
- Department of Taxonomy, Institute of Botany, Czech Academy of Sciences, Czech Republic
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Naranjo‐Ortiz MA, Gabaldón T. Fungal evolution: major ecological adaptations and evolutionary transitions. Biol Rev Camb Philos Soc 2019; 94:1443-1476. [PMID: 31021528 PMCID: PMC6850671 DOI: 10.1111/brv.12510] [Citation(s) in RCA: 127] [Impact Index Per Article: 25.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 03/10/2019] [Accepted: 03/13/2019] [Indexed: 12/13/2022]
Abstract
Fungi are a highly diverse group of heterotrophic eukaryotes characterized by the absence of phagotrophy and the presence of a chitinous cell wall. While unicellular fungi are far from rare, part of the evolutionary success of the group resides in their ability to grow indefinitely as a cylindrical multinucleated cell (hypha). Armed with these morphological traits and with an extremely high metabolical diversity, fungi have conquered numerous ecological niches and have shaped a whole world of interactions with other living organisms. Herein we survey the main evolutionary and ecological processes that have guided fungal diversity. We will first review the ecology and evolution of the zoosporic lineages and the process of terrestrialization, as one of the major evolutionary transitions in this kingdom. Several plausible scenarios have been proposed for fungal terrestralization and we here propose a new scenario, which considers icy environments as a transitory niche between water and emerged land. We then focus on exploring the main ecological relationships of Fungi with other organisms (other fungi, protozoans, animals and plants), as well as the origin of adaptations to certain specialized ecological niches within the group (lichens, black fungi and yeasts). Throughout this review we use an evolutionary and comparative-genomics perspective to understand fungal ecological diversity. Finally, we highlight the importance of genome-enabled inferences to envision plausible narratives and scenarios for important transitions.
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Affiliation(s)
- Miguel A. Naranjo‐Ortiz
- Department of Genomics and Bioinformatics, Centre for Genomic Regulation (CRG)The Barcelona Institute of Science and TechnologyDr. Aiguader 88, Barcelona08003Spain
| | - Toni Gabaldón
- Department of Genomics and Bioinformatics, Centre for Genomic Regulation (CRG)The Barcelona Institute of Science and TechnologyDr. Aiguader 88, Barcelona08003Spain
- Department of Experimental and Health Sciences, Universitat Pompeu Fabra (UPF)08003BarcelonaSpain
- ICREA, Pg. Lluís Companys 2308010BarcelonaSpain
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Sigler L, Frances SP, Panter C. Culicinomyces Bisporalis, A New Entomopathogenic Hyphomycete from Larvae of the Mosquito Aedes Kochi. Mycologia 2018. [DOI: 10.1080/00275514.1987.12025415] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Lynne Sigler
- University of Alberta Microfungus Collection and Herbarium, Devonian Botanic Garden, Edmonton, Alberta T6G 2E1, Canada
| | - S. P. Frances
- School of Public Health and Tropical Medicine, University of Sydney, NSW 2006, Australia
| | - C. Panter
- School of Public Health and Tropical Medicine, University of Sydney, NSW 2006, Australia
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Affiliation(s)
- G. L. Barron
- Department of Environmental Biology, University of Guelph, Guelph, Ontario, Canada N1G 2W1
| | - E. Szijarto
- Department of Environmental Biology, University of Guelph, Guelph, Ontario, Canada N1G 2W1
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Affiliation(s)
- Kathie T. Hodge
- Department of Plant Pathology, Cornell University, Ithaca, New York 14853
| | - Stuart B. Krasnoff
- Plant Protection Research Unit, USDA-ARS, Tower Rd., Ithaca, New York 14853
| | - Richard A. Humber
- Plant Protection Research Unit, USDA-ARS, Tower Rd., Ithaca, New York 14853
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Quandt CA, Kepler RM, Gams W, Araújo JPM, Ban S, Evans HC, Hughes D, Humber R, Hywel-Jones N, Li Z, Luangsa-ard JJ, Rehner SA, Sanjuan T, Sato H, Shrestha B, Sung GH, Yao YJ, Zare R, Spatafora JW. Phylogenetic-based nomenclatural proposals for Ophiocordycipitaceae (Hypocreales) with new combinations in Tolypocladium. IMA Fungus 2014; 5:121-34. [PMID: 25083412 PMCID: PMC4107890 DOI: 10.5598/imafungus.2014.05.01.12] [Citation(s) in RCA: 119] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2014] [Accepted: 06/02/2014] [Indexed: 12/04/2022] Open
Abstract
Ophiocordycipitaceae is a diverse family comprising ecologically, economically, medicinally, and culturally important fungi. The family was recognized due to the polyphyly of the genus Cordyceps and the broad diversity of the mostly arthropod-pathogenic lineages of Hypocreales. The other two cordyceps-like families, Cordycipitaceae and Clavicipitaceae, will be revised taxonomically elsewhere. Historically, many species were placed in Cordyceps, but other genera have been described in this family as well, including several based on anamorphic features. Currently there are 24 generic names in use across both asexual and sexual life stages for species of Ophiocordycipitaceae. To reflect changes in Art. 59 in the International Code of Nomenclature for algae, fungi, and plants (ICN), we propose to protect and to suppress names within Ophiocordycipitaceae, and to present taxonomic revisions in the genus Tolypocladium, based on rigorous and extensively sampled molecular phylogenetic analyses. When approaching this task, we considered the principles of priority, monophyly, minimizing taxonomic revisions, and the practical utility of these fungi within the wider biological research community.
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Affiliation(s)
- C. Alisha Quandt
- Department of Botany and Plant Pathology, Oregon State University, Corvallis, OR 97331, USA
| | - Ryan M. Kepler
- USDA-ARS, Systematic Mycology and Microbiology Laboratory, Beltsville, MD 20705, USA
| | - Walter Gams
- Formerly CBS-KNAW, Fungal Biodiversity Centre, Utrecht, The Netherlands
| | - João P. M. Araújo
- Department of Biology, Pennsylvania State University, University Park, State College, PA 16802, USA
| | - Sayaka Ban
- Biological Resource Center, National Institute of Technology and Evaluation 2-5-8 Kazusakamatari, Kisarazu, Chiba 292-0818, Japan
| | - Harry C. Evans
- CAB International, E-UK Centre, Egham, Surrey TW20 9TY, UK
| | - David Hughes
- Department of Biology, Pennsylvania State University, University Park, State College, PA 16802, USA
- Department of Entomology, Center for Infectious Disease Dynamics, Pennsylvania State University, University Park, State College, PA 16802, USA
| | - Richard Humber
- USDA-ARS Biological Integrated Pest Management Research, Robert W. Holley Center for Agriculture and Health, Ithaca, NY14853, USA
| | | | - Zengzhi Li
- Department of Forestry, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - J. Jennifer Luangsa-ard
- Microbe Interaction Laboratory, National Center for Genetic Engineering and Biotechnology (BIOTEC), 113 Thailand Science Park, Phahonyothin Rd, Khlong Nueng, Khlong Luang, Pathum Thani 12120, Thailand
| | - Stephen A. Rehner
- USDA-ARS, Systematic Mycology and Microbiology Laboratory, Beltsville, MD 20705, USA
| | - Tatiana Sanjuan
- Laboratorio de Taxonomía y Ecología de Hongos, Instituto de Biología, Facultad de Ciencias Naturales, Universidad de Antioquia, Medellín, Colombia and Laboratorio de micología y fitopatología, Departamento Ciencias Biológicas, Universidad de los Andes, Bogotá, Colombia
| | - Hiroki Sato
- Department of Forest Entomology, Forestry and Forest Products Research Institute, 1 Matsunosato, Tsukuba, Ibaraki 305, Japan
| | - Bhushan Shrestha
- Institute of Life Science and Biotechnology, Sungkyunkwan University, Suwon 440-746, Korea
| | - Gi-Ho Sung
- Mushroom Research Division, National Institute of Horticultural and Herbal Science, Rural Development Administration, Eumseong 369-873, Korea
| | - Yi-Jian Yao
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
| | - Rasoul Zare
- Department of Botany, Iranian Research Institute of Plant Protection, P.O. Box 1454, Tehran 19395, Iran
| | - Joseph W. Spatafora
- Department of Botany and Plant Pathology, Oregon State University, Corvallis, OR 97331, USA
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Krasnoff SB, Gupta S. Efrapeptin production byTolypocladium fungi (Deuteromycotina: Hyphomycetes): Intra- and interspecific variation. J Chem Ecol 2013; 18:1727-41. [PMID: 24254715 DOI: 10.1007/bf02751098] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/1992] [Accepted: 05/27/1992] [Indexed: 11/25/2022]
Abstract
Production of the mitochondrial ATPase inhibitory peptides efrapeptins was evaluated by HPLC analysis in 44 strains of nine species of the fungal genusTolypocladium (Deuteromycotina: Hyphomycetes). Efrapeptin identification was confirmed by mass spectral data for the first time in the speciesT. cylindrosporum. HPLC retention time data indicated thatT. nubicola andT. tundrense, two species not previously known to produce efrapeptins, also produce the peptides. No efrapeptins were detected (<0.3 mg/100 ml broth) in single strains each ofT. balanoides, T. extinguens, T. parasiticum, andT. microsporum. Five strains ofT. geodes produced detectable amounts of efrapeptins and had compound F, or F and G, as the major component(s) in the mixture with the order of abundance being F> or ∼G > H ∼ D ∼ E > C. Eleven strains ofT. niveum produced detectable amounts of efrapeptins and had efrapeptins D and E as the primary and secondary components, respectively, in the mixture with the order of abundance being D > E > F > C ∼ G. A singleT. niveum strain had an efrapeptin profile similar to that of theT. geodes strains. Ten strains ofT. cylindrosporum had detectable amounts of efrapeptins. Of these, nine had F and one had G as the major component.T. cylindrosporum had higher ratios of E to D than didT. geodes. Efrapeptins were detected in one of twoT. nubicola strains analyzed (F > G > H) and one of threeT. tundrense strains (F > G > H > E).T. niveum strains could, in most cases, be identified to species on the basis of their efrapeptin profiles.
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Affiliation(s)
- S B Krasnoff
- U.S. Plant, Soil, and Nutrition Laboratory, USDA-ARS, Tower Road, 14853, Ithaca, New York
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Sung GH, Hywel-Jones NL, Sung JM, Luangsa-Ard JJ, Shrestha B, Spatafora JW. Phylogenetic classification of Cordyceps and the clavicipitaceous fungi. Stud Mycol 2011; 57:5-59. [PMID: 18490993 PMCID: PMC2104736 DOI: 10.3114/sim.2007.57.01] [Citation(s) in RCA: 574] [Impact Index Per Article: 44.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
Cordyceps, comprising over 400 species, was historically classified in the Clavicipitaceae, based on cylindrical asci, thickened ascus apices and filiform ascospores, which often disarticulate into part-spores. Cordyceps was characterized by the production of well-developed often stipitate stromata and an ecology as a pathogen of arthropods and Elaphomyces with infrageneric classifications emphasizing arrangement of perithecia, ascospore morphology and host affiliation. To refine the classification of Cordyceps and the Clavicipitaceae, the phylogenetic relationships of 162 taxa were estimated based on analyses consisting of five to seven loci, including the nuclear ribosomal small and large subunits (nrSSU and nrLSU), the elongation factor 1alpha (tef1), the largest and the second largest subunits of RNA polymerase II (rpb1 and rpb2), beta-tubulin (tub), and mitochondrial ATP6 (atp6). Our results strongly support the existence of three clavicipitaceous clades and reject the monophyly of both Cordyceps and Clavicipitaceae. Most diagnostic characters used in current classifications of Cordyceps (e.g., arrangement of perithecia, ascospore fragmentation, etc.) were not supported as being phylogenetically informative; the characters that were most consistent with the phylogeny were texture, pigmentation and morphology of stromata. Therefore, we revise the taxonomy of Cordyceps and the Clavicipitaceae to be consistent with the multi-gene phylogeny. The family Cordycipitaceae is validated based on the type of Cordyceps, C. militaris, and includes most Cordyceps species that possess brightly coloured, fleshy stromata. The new family Ophiocordycipitaceae is proposed based on Ophiocordyceps Petch, which we emend. The majority of species in this family produce darkly pigmented, tough to pliant stromata that often possess aperithecial apices. The new genus Elaphocordyceps is proposed for a subclade of the Ophiocordycipitaceae, which includes all species of Cordyceps that parasitize the fungal genus Elaphomyces and some closely related species that parasitize arthropods. The family Clavicipitaceaes. s. is emended and includes the core clade of grass symbionts (e.g., Balansia, Claviceps, Epichloë, etc.), and the entomopathogenic genus Hypocrella and relatives. In addition, the new genus Metacordyceps is proposed for Cordyceps species that are closely related to the grass symbionts in the Clavicipitaceaes. s.Metacordyceps includes teleomorphs linked to Metarhizium and other closely related anamorphs. Two new species are described, and lists of accepted names for species in Cordyceps, Elaphocordyceps, Metacordyceps and Ophiocordyceps are provided.
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Affiliation(s)
- Gi-Ho Sung
- Department of Botany and Plant Pathology, Oregon State University, Corvallis, OR 97331-2902, U.S.A
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Kanasaki R, Kobayashi M, Fujine K, Sato I, Hashimoto M, Takase S, Tsurumi Y, Fujie A, Hino M, Hashimoto S, Hori Y. FR227673 and FR190293, Novel Antifungal Lipopeptides from Chalara sp. No. 22210 and Tolypocladium parasiticum No. 16616. J Antibiot (Tokyo) 2006; 59:158-67. [PMID: 16724456 DOI: 10.1038/ja.2006.23] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Novel antifungal lipopeptides, FR227673 and FR190293, were isolated from the fermentation broths of fungal strains Chalara sp. No. 22210 and Tolypocladium parasiticum No. 16616, respectively. These compounds have the same cyclic peptide nuclear structure as FR901379, with different side chains, and showed antifungal activity against Aspergillus fumigatus and Candida albicans attributed to inhibition of 1,3-beta-glucan synthesis.
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Affiliation(s)
- Ryuichi Kanasaki
- Fermentation Research Laboratories, Fujisawa Pharmaceutical Co., Ltd., 5-2-3 Tokodai, Tsukuba, Ibaraki 300-2698, Japan.
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Stensrud O, Hywel-Jones NL, Schumacher T. Towards a phylogenetic classification of Cordyceps: ITS nrDNA sequence data confirm divergent lineages and paraphyly. ACTA ACUST UNITED AC 2005; 109:41-56. [PMID: 15736862 DOI: 10.1017/s095375620400139x] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The ascomycetous genus Cordyceps accommodates endoparasitic species that attack arthropods or other fungi. Analyses of ITS nrDNA sequence data of 72 taxa from the teleomorph genera Cordyceps, Claviceps, Epichloë, and the anamorph genera Akanthomyces, Beauveria, Metarhizium, Hirsutella, Hymenostilbe, Paecilomyces, Polycephalomyces, and Tolypocladium assigned the taxa to four main evolutionary lineages not reflected in the current classification of Cordyceps. Ten subclades were recognized from separate analyses of data subsets. Judged from the ITS phylogenies, Cordyceps spp. with branched stromata were highly supported as a divergent lineage. Host specificity was found to be of limited phylogenetic significance, and several host shifts are suggested to have occurred during the evolution of Cordyceps. Similar ascospore morphology was not reflected in the phyletic groups, and closely related taxa showed large interspecific variation with respect to the number of segments in which the ascospores are divided. However, combinations of selected characters were found to delimitate some lineages, e.g. all Cordyceps spp. that attack hosts in the insect orders Coleoptera and Lepidoptera, and with non-immersed perithecia and clavate to acicular, brightly yellowish to reddish stromata, constituted a separate clade. Furthermore, all Cordyceps spp. with perithecia obliquely immersed in the stroma were recognized as a distinct monophyletic group. This clade is additionally characterized by the formation of anamorphs ascribable to the genus Hymenostilbe. The mycogenous Cordyceps spp. grouped in a separate subclade, interspersed by two cicadaen parasites and all Tolypocladium spp. except T. parasiticum. Tolypocladium and Beauveria were found to be polyphyletic. The included Claviceps and Epichloë taxa appeared to be derived within Cordyceps, thus making Cordyceps paraphyletic as suggested in other studies.
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Affiliation(s)
- Oyvind Stensrud
- Division of Botany and Plant Physiology, Department of Biology, University of Oslo, P.O. Box 1045, Blindern, 0316 Oslo, Norway.
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Glockling SL, Yamada F. A survey of fungi which kill microscopic animals in the dung of the Amami rabbit. ACTA ACUST UNITED AC 1997. [DOI: 10.1016/s0269-915x(97)80011-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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