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Nakagiri A, Hakotani A, Shino R, Miyazaki K, Endo N, Sotome K, Maekawa N. Taxonomic and life cycle reappraisals of the marine basidiomycete Nia vibrissa complex, with descriptions of three new Nia species. Mycologia 2024; 116:59-91. [PMID: 38109665 DOI: 10.1080/00275514.2023.2276028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Accepted: 10/24/2023] [Indexed: 12/20/2023]
Abstract
The marine basidiomycete Nia vibrissa has been regarded as a species complex, possibly including several species, because morphological variations in fruitbody, spore, and spore appendage have been observed in materials from worldwide collections. Using more than 50 monosporic isolates of N. vibrissa-like fungi mainly obtained from Japanese beach coasts, we investigated their molecular phylogeny, morphological characteristics, mating compatibility, nuclear behavior during spore formation, and life cycles. Molecular phylogenetic analyses separated the examined strains into seven clades. Each clade of fungi exhibited distinctive characteristics in fruitbodies and spores produced by culturing monokaryotic strains and mated dikaryotic strains; these characteristics included the color of fruitbodies, apical structure of peridial hair hyphae, spore shape, and apical structure of spore appendages. Mating tests of monokaryotic strains demonstrated mating compatibility between strains within a clade and incompatibility among clades. Therefore, each clade of fungi was phylogenetically, morphologically, and biologically recognized as a different Nia species. Observation of the type specimen of N. vibrissa revealed a tiny T-shaped apical structure of spore appendages-not mentioned in the original description-that is unique to the species. This finding, together with the original description, suggests that our studied strains include N. aff. vibrissa, whose morphology is mostly identical to N. vibrissa sensu stricto, and three new species. Thus, we describe three new Nia species and propose emendation of the descriptions of the genus Nia. Culture-based studies have demonstrated that Nia species have both sexual and asexual morphs that produce morphologically similar fruitbodies (basidiomata and conidiomata) and spores (basidiospores and conidia). Because it has both morphs forming appendaged waterborne basidiospores and conidia, Nia must be the most well-adapted marine basidiomycete, ensuring the continuation of new generations by two morphs, while distributing in and inhabiting numerous marine environments.
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Affiliation(s)
- A Nakagiri
- Fungus/Mushroom Resource and Research Center, Faculty of Agriculture, Tottori University, 4-101 Koyama-Minami, Tottori, 680-8553, Japan
| | - A Hakotani
- Graduate School of Sustainability Science, Department of Agricultural Sciences, Tottori University, 4-101 Koyama-Minami, Tottori, 680-8553, Japan
| | - R Shino
- The United Graduate School of Agricultural Sciences, Tottori University, 4-101 Koyama-Minami, Tottori, 680-8553, Japan
| | - K Miyazaki
- Graduate School of Sustainability Science, Department of Agricultural Sciences, Tottori University, 4-101 Koyama-Minami, Tottori, 680-8553, Japan
| | - N Endo
- Fungus/Mushroom Resource and Research Center, Faculty of Agriculture, Tottori University, 4-101 Koyama-Minami, Tottori, 680-8553, Japan
| | - K Sotome
- Fungus/Mushroom Resource and Research Center, Faculty of Agriculture, Tottori University, 4-101 Koyama-Minami, Tottori, 680-8553, Japan
| | - N Maekawa
- Fungus/Mushroom Resource and Research Center, Faculty of Agriculture, Tottori University, 4-101 Koyama-Minami, Tottori, 680-8553, Japan
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Maekawa N, Sugawara R, Nakano R, Shino R, Sotome K, Nakagiri A, Oba Y. A new species of the genus Aleurodiscus sensu lato ( Russulales, Basidiomycota) from Hachijo Island, Japan. MYCOSCIENCE 2023; 64:109-115. [PMID: 37881530 PMCID: PMC10594061 DOI: 10.47371/mycosci.2023.06.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 06/02/2023] [Accepted: 06/02/2023] [Indexed: 10/27/2023]
Abstract
Aleurodiscus sagittisporus sp. nov. is described and illustrated. This species is characterized by producing basidiomata with a monomitic hyphal system, clampless-septate hyphae, arrowhead-shaped, amyloid, finely verrucose basidiospores, gloeocystidia, dendrohyphidium-like branched paraphysoid hyphae, and variously shaped swelling cells in the hymenium. Phylogenetic analyses based on nuclear rDNA LSU and ITS sequences revealed that the species is distinct from the lineage of Aleurodiscus s. str. and related genera in the Aleurodiscus s. lat. clade. Basidiomata of A. sagittisporus have been collected only from dead petioles attached to living trees of Livistona chinensis var. subglobosa on Hachijo Island, Japan.
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Affiliation(s)
- Nitaro Maekawa
- Fungus/Mushroom Resource and Research Center, Faculty of Agriculture, Tottori University
| | - Ryo Sugawara
- The United Graduate School of Agricultural Sciences, Tottori University
| | - Ryo Nakano
- Graduate School of Agricultural Science, Tottori University
| | - Ryotaro Shino
- The United Graduate School of Agricultural Sciences, Tottori University
| | - Kozue Sotome
- Fungus/Mushroom Resource and Research Center, Faculty of Agriculture, Tottori University
| | - Akira Nakagiri
- Fungus/Mushroom Resource and Research Center, Faculty of Agriculture, Tottori University
| | - Yuichi Oba
- Department of Environmental Biology, Chubu University
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Hayashi K, Tanaka Y, Tsuda T, Nomura A, Fujino N, Furusho H, Sakai N, Iwata Y, Usui S, Sakata K, Kato T, Tada H, Kusayama T, Usuda K, Kawashiri MA, Passman RS, Wada T, Yamagishi M, Takamura M, Fujino N, Nohara A, Kawashiri MA, Hayashi K, Sakata K, Yoshimuta T, Konno T, Funada A, Tada H, Nakanishi C, Hodatsu A, Mori M, Tsuda T, Teramoto R, Nagata Y, Nomura A, Shimojima M, Yoshida S, Yoshida T, Hachiya S, Tamura Y, Kashihara Y, Kobayashi T, Shibayama J, Inaba S, Matsubara T, Yasuda T, Miwa K, Inoue M, Fujita T, Yakuta Y, Aburao T, Matsui T, Higashi K, Koga T, Hikishima K, Namura M, Horita Y, Ikeda M, Terai H, Gamou T, Tama N, Kimura R, Tsujimoto D, Nakahashi T, Ueda K, Ino H, Higashikata T, Kaneda T, Takata M, Yamamoto R, Yoshikawa T, Ohira M, Suematsu T, Tagawa S, Inoue T, Okada H, Kita Y, Fujita C, Ukawa N, Inoguchi Y, Ito Y, Araki T, Oe K, Minamoto M, Yokawa J, Tanaka Y, Mori K, Taguchi T, Kaku B, Katsuda S, Hirase H, Haraki T, Fujioka K, Terada K, Ichise T, Maekawa N, Higashi M, Okeie K, Kiyama M, Ota M, Todo Y, Aoyama T, Yamaguchi M, Noji Y, Mabuchi T, Yagi M, Niwa S, Takashima Y, Murai K, Nishikawa T, Mizuno S, Ohsato K, Misawa K, Kokado H, Michishita I, Iwaki T, Nozue T, Katoh H, Nakashima K, Ito S, Yamagishi M. Correction: Characterization of baseline clinical factors associated with incident worsening kidney function in patients with non-valvular atrial fibrillation: the Hokuriku-Plus AF Registry. Heart Vessels 2023; 38:412. [PMID: 36508013 DOI: 10.1007/s00380-022-02218-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Kenshi Hayashi
- Department of Cardiovascular Medicine, Kanazawa University Graduate School of Medical Sciences, 13-1, Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan.
| | - Yoshihiro Tanaka
- Department of Cardiovascular Medicine, Kanazawa University Graduate School of Medical Sciences, 13-1, Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan.,Center for Arrhythmia Research, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.,Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Toyonobu Tsuda
- Department of Cardiovascular Medicine, Kanazawa University Graduate School of Medical Sciences, 13-1, Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan
| | - Akihiro Nomura
- Department of Cardiovascular Medicine, Kanazawa University Graduate School of Medical Sciences, 13-1, Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan
| | - Noboru Fujino
- Department of Cardiovascular Medicine, Kanazawa University Graduate School of Medical Sciences, 13-1, Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan
| | - Hiroshi Furusho
- Department of Cardiovascular Medicine, Kanazawa University Graduate School of Medical Sciences, 13-1, Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan.,Department of Cardiology, Ishikawa Prefectural Central Hospital, 2-1, Kuratsuki-higashi, Kanazawa, Japan
| | - Norihiko Sakai
- Department of Nephrology and Laboratory Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa, Japan
| | - Yasunori Iwata
- Department of Nephrology and Laboratory Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa, Japan
| | - Soichiro Usui
- Department of Cardiovascular Medicine, Kanazawa University Graduate School of Medical Sciences, 13-1, Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan
| | - Kenji Sakata
- Department of Cardiovascular Medicine, Kanazawa University Graduate School of Medical Sciences, 13-1, Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan
| | - Takeshi Kato
- Department of Cardiovascular Medicine, Kanazawa University Graduate School of Medical Sciences, 13-1, Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan
| | - Hayato Tada
- Department of Cardiovascular Medicine, Kanazawa University Graduate School of Medical Sciences, 13-1, Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan
| | - Takashi Kusayama
- Department of Cardiovascular Medicine, Kanazawa University Graduate School of Medical Sciences, 13-1, Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan
| | - Keisuke Usuda
- Department of Cardiovascular Medicine, Kanazawa University Graduate School of Medical Sciences, 13-1, Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan
| | - Masa-Aki Kawashiri
- Department of Cardiovascular Medicine, Kanazawa University Graduate School of Medical Sciences, 13-1, Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan
| | - Rod S Passman
- Center for Arrhythmia Research, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.,Division of Cardiology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Takashi Wada
- Department of Nephrology and Laboratory Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa, Japan
| | - Masakazu Yamagishi
- Department of Cardiovascular Medicine, Kanazawa University Graduate School of Medical Sciences, 13-1, Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan.,Osaka University of Human Sciences, Settsu, Osaka, Japan
| | - Masayuki Takamura
- Department of Cardiovascular Medicine, Kanazawa University Graduate School of Medical Sciences, 13-1, Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan
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Maekawa N, Sugawara R, Kogi H, Norikura S, Sotome K, Endo N, Nakagiri A, Ushijima S. <i>Hypochnicium</i> sensu lato (<i>Polyporales</i>, <i>Basidiomycota</i>) from Japan, with descriptions of a new genus and three new species. MYCOSCIENCE 2023; 64:19-34. [PMID: 37089899 PMCID: PMC10042306 DOI: 10.47371/mycosci.2022.10.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 10/18/2022] [Accepted: 10/22/2022] [Indexed: 02/03/2023]
Abstract
Species of Hypochnicium (Polyporales, Basidiomycota) collected from Japan were studied on their taxonomy by morphological and phylogenetic approaches. Phylogenetic analyses based on a nrDNA LSU and ITS dataset including the Japanese specimens and other publicly available ones show that Hypochnicium is polyphyletic. Since the clade containing the type species H. bombycinum was well-supported, we defined this clade as Hypochnicium s. str., and emended Hypochnicium to include restricted taxa with only smooth basidiospores. The new genus Neohypochnicium is proposed to accommodate the remaining taxa excluded from the genus Hypochnicium s. str., which includes both species with smooth basidiospores and ornamented ones. Three new species, Gyrophanopsis japonica, N. asiaticum and N. perlongicystidiosum are described and illustrated based on morphological and phylogenetic analyses using an ITS region dataset. In addition, the following 15 new combinations are proposed: N. albostramineum, N. aotearoae, N. capitulateum, N. cremicolor, N. cystidiatum, N. geogenium, N. guineense, N. huinayense, N. michelii, N. microsporum, N. patagonicum, N. pini, N. punctulatum, N. subrigescens and N. wakefieldiae. An identification key to Japanese species of Bulbillomyces, Gyrophanopsis, Hypochnicium and Neohypochnicium is provided.
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Affiliation(s)
- Nitaro Maekawa
- Fungus/Mushroom Resource and Research Center, Faculty of Agriculture, Tottori University
| | - Ryo Sugawara
- The United Graduate School of Agricultural Sciences, Tottori University
| | - Hiroki Kogi
- Graduate School of Sustainability Science, Tottori University
| | | | - Kozue Sotome
- Fungus/Mushroom Resource and Research Center, Faculty of Agriculture, Tottori University
| | - Naoki Endo
- Fungus/Mushroom Resource and Research Center, Faculty of Agriculture, Tottori University
| | - Akira Nakagiri
- Fungus/Mushroom Resource and Research Center, Faculty of Agriculture, Tottori University
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Sugawara R, Shirasuka N, Yamamoto T, Nagamune K, Oguchi K, Maekawa N, Sotome K, Nakagiri A, Ushijima S, Endo N. Two new species of <i>Sistotrema</i> s.l. (<i>Cantharellales</i>) from Japan with descriptions of their ectomycorrhizae. MYCOSCIENCE 2022; 63:102-117. [PMID: 37089627 PMCID: PMC10042317 DOI: 10.47371/mycosci.2022.02.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2021] [Revised: 02/02/2022] [Accepted: 02/13/2022] [Indexed: 01/14/2023]
Abstract
We describe two new species of resupinate Sistotrema sensu lato (Cantharellales) collected in Japan: S. flavorhizomorphae and S. chloroporum. Both species have urniform basidia with more than four sterigmata and monomitic hyphal system, oil-rich hyphae in subiculum, which is typical for this genus. Sistotrema chloroporum is characterized by poroid hymenophore partly yellowish-green, basidia 4-6-spored, medium-sized basidiospores (4.5-6.5 × 3.5-6 µm), and broadleaf forest habitat. Sistotrema flavorhizomorphae is characterized by hydnoid-irpicoid hymenophore, bright yellowish rhizomorphs, basidia 6-8-spored, small basidiospores (3-3.5 × 2.5-3 µm), and pine forest habitat. Phylogenetic trees inferred from the fungal nrDNA ITS and LSU and the rpb2 sequences supported that both species were distinct and grouped with other ectomycorrhizal Sistotrema and Hydnum species, but their generic boundary was unclear. Mycorrhizae underneath basidiomes of both species were identified and described via molecular techniques. Mycorrhizae of S. chloroporum have similar characteristics to those of other Sistotrema s.l. and Hydnum species, i.e., S. confluens and H. repandum, whereas S. flavorhizomorphae has a distinct morpho-anatomy, for example, a distinct pseudoparenchymatous mantle. Comprehensive characterizations of basidiomes and mycorrhizae improve the taxonomic analysis of mycorrhizal species of Sistotrema s.l.
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Affiliation(s)
- Ryo Sugawara
- The United Graduate School of Agricultural Sciences, Tottori University
| | - Nana Shirasuka
- Graduate School of Sustainability Science, Tottori University
| | | | | | | | - Nitaro Maekawa
- Fungus/Mushroom Resource and Research Center, Faculty of Agriculture, Tottori University
| | - Kozue Sotome
- Fungus/Mushroom Resource and Research Center, Faculty of Agriculture, Tottori University
| | - Akira Nakagiri
- Fungus/Mushroom Resource and Research Center, Faculty of Agriculture, Tottori University
| | | | - Naoki Endo
- Fungus/Mushroom Resource and Research Center, Faculty of Agriculture, Tottori University
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Shino R, Shibata S, Sotome K, Endo N, Maekawa N, Nakagiri A. Taxonomy and ecology of Physisporinus forming synnema-like structures in freshwater environments. Mycologia 2022; 114:587-606. [PMID: 35605127 DOI: 10.1080/00275514.2022.2050127] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Since 2011, we have collected fungi that form synnema-like structures (SSs) bearing many acanthophyses at the apex on water-splashed wood in streams in various regions of Japan. A provisional phylogenetic analysis of strains isolated from SSs based on their nrDNA sequences implied affinity with Physisporinus (Polyporales, Basidiomycota). However, it has not been reported that this genus forms SSs in freshwater habitats. We found a fungus forming not only SSs on the water-boundary part of wood but also resupinate basidiocarps with poroid hymenophores on nonsubmerged parts, and the morphological characteristics of the basidiocarps matched those of Physisporinus. Therefore, we investigated the relationship between SS-forming fungi and their sexual states by taxonomic approaches. Phylogenetic analyses based on nrDNA internal transcribed spacer (ITS) and large subunit (LSU) sequences indicated that SS-forming fungi diverged into five clades in Physisporinus. Each clade was discriminated by the color of SSs, morphology of acanthophyses, and cultural characteristics. Of the five clades, Clade 1, which consisted only of sequences of strains isolated from SSs and basidiocarps produced on rhizomorphs, was closely related to P. eminens and P. undatus, but the morphology of basidiocarps and the manner of basidiocarp development differed. Clade 5 was closely related to P. castanopsidis, P. crocatus, P. pouzarii, P. sanguinolentus, P. subcrocatus, P. tibeticus, and P. vitreus, but the basidiocarp morphology differed. Therefore, Clades 1 and 5 were described as two new species. Regarding Clades 2, 3, and 4, further taxonomic studies with additional specimens are required. SS and acanthophysis formation in wet habitats in streams and in culture could be recognized as new taxonomic and ecological characters of Physisporinus.
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Affiliation(s)
- Ryotaro Shino
- The United Graduate School of Agricultural Sciences, Tottori University, 4-101, Koyama-Minami, Tottori-shi, Tottori, 680-8553, Japan
| | - Satsuki Shibata
- School of Agricultural, Biological and Environmental Sciences, Faculty of Agriculture, Tottori University, 4-101, Koyama-Minami, Tottori-shi, Tottori, 680-8553, Japan
| | - Kozue Sotome
- Fungus/Mushroom Resource and Research Center (FMRC), Faculty of Agriculture, Tottori University, 4-101, Koyama-Minami, Tottori-shi, Tottori, 680-8553, Japan
| | - Naoki Endo
- Fungus/Mushroom Resource and Research Center (FMRC), Faculty of Agriculture, Tottori University, 4-101, Koyama-Minami, Tottori-shi, Tottori, 680-8553, Japan
| | - Nitaro Maekawa
- Fungus/Mushroom Resource and Research Center (FMRC), Faculty of Agriculture, Tottori University, 4-101, Koyama-Minami, Tottori-shi, Tottori, 680-8553, Japan
| | - Akira Nakagiri
- Fungus/Mushroom Resource and Research Center (FMRC), Faculty of Agriculture, Tottori University, 4-101, Koyama-Minami, Tottori-shi, Tottori, 680-8553, Japan
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Sugawara R, Maekawa N, Sotome K, Nakagiri A, Endo N. Systematic revision of Hydnum species in Japan. Mycologia 2022; 114:413-452. [PMID: 35394899 DOI: 10.1080/00275514.2021.2024407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Hydnum (Hydnaceae, Basidiomycota) exhibits endemic species diversity in East Asia; however, few comprehensive systematic studies have been conducted to date. Here, we performed morphological, ecological, phylogenetic, and biological evaluations of the taxonomy of Hydnum species in Japan. In total, 186 Japanese Hydnum specimens were used for morphological observations. Phylogenetic trees were constructed using sequence data of nuc rDNA internal transcribed spacer ITS1-5.8S-ITS2 (ITS) region and a portion of translation elongation factor 1-α (tef1). Intra- and interspecific mating tests using 78 monokaryotic strains of 13 species did not conflict with species delimitation inferred from their ITS and tef1 phylogenetic relationships. This study provides detailed morphological descriptions of 15 rigorously identified species from Japan, nine of which are described as new: H. alboluteum, H. albopallidum, H. pinicola, H. itachiharitake, H. minospororufescens, H. orientalbidum, H. subberkeleyanum, H. tomaense, and H. tottoriense. Three species documented in this work are new to Japan: H. boreorepandum, H. mulsicolor, and H. umbilicatum. The remaining three species (H. cremeoalbum, H. minus, and H. repando-orientale), previously reported from Japan, are redescribed using data from newly collected materials. We also transferred two old species (Hericium fimbrillatum and Sarcodon nauseofoetidus) from East Asian Hydnum into other genera.
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Affiliation(s)
- Ryo Sugawara
- The United Graduate School of Agricultural Sciences, Tottori University, 4-101, Koyama, Tottori 680-8553, Japan
| | - Nitaro Maekawa
- Fungus/Mushroom Resource and Research Center, Faculty of Agriculture, Tottori University, 4-101, Koyama, Tottori 680-8553, Japan
| | - Kozue Sotome
- Fungus/Mushroom Resource and Research Center, Faculty of Agriculture, Tottori University, 4-101, Koyama, Tottori 680-8553, Japan
| | - Akira Nakagiri
- Fungus/Mushroom Resource and Research Center, Faculty of Agriculture, Tottori University, 4-101, Koyama, Tottori 680-8553, Japan
| | - Naoki Endo
- Fungus/Mushroom Resource and Research Center, Faculty of Agriculture, Tottori University, 4-101, Koyama, Tottori 680-8553, Japan
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Endo N, Takahashi M, Nagamune K, Oguchi K, Sugawara R, Sotome K, Nakagiri A, Maekawa N. Description of a new species of Gerhardtia ( Lyophyllaceae, Agaricales) from Japan based on morphological and molecular phylogenetic analyses and live culture characteristics. MYCOSCIENCE 2022; 63:12-25. [PMID: 37091217 PMCID: PMC9877505 DOI: 10.47371/mycosci.2021.09.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 09/21/2021] [Accepted: 09/21/2021] [Indexed: 11/16/2022]
Abstract
We describe a new species of Gerhardtia from Japan based on basidiomata morphology, live culture characteristics, and molecular phylogenetic analyses. Gerhardtia venosolamellata is found on broad-leaf litter, and is characterized by tricholomatoid to marasmioid basidiomata, an off-white to pale salmon-pink pileus surface with faint marginal striae, subdistant lamellae with lateral veins, a tomentose to strigose stipe base with hyphal strands generating arthroconidia measuring 4-7 × 2-3 µm, cyanophilic, elongate-ellipsoid to cylindrical, slightly verrucose or undulate basidiospores measuring 4.5-6 × 2.5-3 µm, and cyanophilic basidia measuring 25-35 × 5-6 µm and containing siderophilous granules. Phylogenetic analyses based on the internal transcribed spacer and large subunit regions of the fungal nrDNA indicates that G. venosolamellata is related to G. sinensis and G. highlandensis, but differs from the former with respect to basidiomata color, basidiospore shape, and habitat. An isotype specimen of G. highlandensis exhibited relatively close lamellae without veins, and slightly larger basidiospores (4.5-6.5 × 2.5-3 µm). Cultured mycelia of G. venosolamellata produced arthroconidia measuring 4.5-8.5 × 2.5-3 µm with both schizolytic and rhexolytic secession on MA and PDA media, and chlamydospores occasionally covered with crystals on MA and MYG media.
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Affiliation(s)
- Naoki Endo
- Fungus/Mushroom Resource and Research Center, Faculty of Agriculture, Tottori University
| | | | | | | | - Ryo Sugawara
- The United Graduate School of Agricultural Sciences, Tottori University
| | - Kozue Sotome
- Fungus/Mushroom Resource and Research Center, Faculty of Agriculture, Tottori University
| | - Akira Nakagiri
- Fungus/Mushroom Resource and Research Center, Faculty of Agriculture, Tottori University
| | - Nitaro Maekawa
- Fungus/Mushroom Resource and Research Center, Faculty of Agriculture, Tottori University
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Maekawa N. Taxonomy of corticioid fungi in Japan : Present status and future prospects. MYCOSCIENCE 2021; 62:345-355. [PMID: 37090178 PMCID: PMC9733718 DOI: 10.47371/mycosci.2021.10.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 10/04/2021] [Accepted: 10/05/2021] [Indexed: 11/16/2022]
Abstract
Corticioid fungi form effused basidiomata with various hymenophore configurations, mostly on woody substrates, and they are presently classified into 15 orders in Agaricomycotina in the phylum Basidiomycota. In this review, the corticioid fungi of Japan are treated on the basis of the current classification system, and all currently known species are listed and classified by order. Japanese corticioid fungi number 442 species in 160 genera belonging to 14 orders. Analysis of the distribution of Japanese corticioid species reveals that 375 species (85% of the total) have wide distributions, and that the Japanese corticioid fungal flora is composed of species with diverse patterns of distribution. In the subtropical regions, 146 corticioid species belonging to 77 genera are listed, including 100 species from the Nansei Islands and 76 from the Ogasawara Islands. Although these two island groups are located at similar latitudes, they share only 30 corticioid species-21% of the total reported from the subtropical regions. Along with this summary of the current status, this study presents future directions for the taxonomic research of the Japanese corticioid fungi.
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Affiliation(s)
- Nitaro Maekawa
- Fungus/Mushroom Resource and Research Center, Faculty of Agriculture, Tottori University
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10
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Sajiki Y, Konnai S, Ikenaka Y, Okagawa T, Maekawa N, Logullo C, da Silva Vaz I, Murata S, Ohashi K. Prostaglandin-related immune suppression in cattle. Vet Immunol Immunopathol 2021; 236:110238. [PMID: 33857743 DOI: 10.1016/j.vetimm.2021.110238] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 03/08/2021] [Accepted: 04/02/2021] [Indexed: 12/31/2022]
Abstract
Prostaglandins (PGs) are lipid mediators derived from arachidonic acid by several enzymes including cyclooxygenase (COX)-1 and COX-2. We have previously shown that PGE2 regulates immune responses, such as Th1 cytokine production and T-cell proliferation, in cattle. However, it is still unclear whether other PGs are involved in the regulation of immune responses in cattle. Here, immunosuppressive profiles of PGs (PGA1, PGB2, PGD2, PGE2, PGF1α and PGF2α) were firstly examined using bovine peripheral blood mononuclear cells (PBMCs). In addition to PGE2, PGA1 significantly inhibited Th1 cytokine production from PBMCs in cattle. Further analyses focusing on PGA1 revealed that treatment with PGA1 in the presence of concanavalin A (con A) downregulated CD69, an activation marker, and IFN-γ expression in both CD4+ and CD8+ T cells. Sorted CD3+ T cells stimulated with con A were cultivated with PGA1, and IFN-γ and TNF-α concentrations decreased upon PGA1 treatment. Taken together, these results suggest that the treatment with PGA1in vitro inhibits T-cell activation, especially Th1 cytokine production, in cattle.
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Affiliation(s)
- Y Sajiki
- Department of Disease Control, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, 060-0818, Japan
| | - S Konnai
- Department of Disease Control, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, 060-0818, Japan; Department of Advanced Pharmaceutics, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, 060-0818, Japan.
| | - Y Ikenaka
- Laboratory of Toxicology, Department of Environmental Veterinary Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, 060-0818, Japan; Translational Research Unit, Veterinary Teaching Hospital, Faculty of Veterinary Medicine, Hokkaido University, Kita-18 Nishi-9, Kita-ku, Sapporo, 060-0818, Japan; Water Research Group, Unit for Environmental Sciences and Management, North-West University, Potchefstroom, South Africa
| | - T Okagawa
- Department of Advanced Pharmaceutics, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, 060-0818, Japan
| | - N Maekawa
- Department of Advanced Pharmaceutics, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, 060-0818, Japan
| | - C Logullo
- Laboratório Integrado de Bioquímica Hatisaburo Masuda and Laboratório Integrado de Morfologia, NUPEM-UFRJ, Macaé, RJ, Brazil
| | - I da Silva Vaz
- Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, 91501-970, RS, Brazil
| | - S Murata
- Department of Disease Control, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, 060-0818, Japan; Department of Advanced Pharmaceutics, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, 060-0818, Japan
| | - K Ohashi
- Department of Disease Control, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, 060-0818, Japan; Department of Advanced Pharmaceutics, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, 060-0818, Japan
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Sugawara R, Sotome K, Maekawa N, Nakagiri A, Endo N. Mycorrhizal synthesis, morpho-anatomical characterization of mycorrhizae, and evaluation of mycorrhiza-forming ability of Hydnum albidum-like species using monokaryotic and dikaryotic cultures. Mycorrhiza 2021; 31:349-359. [PMID: 33616720 DOI: 10.1007/s00572-021-01024-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Accepted: 02/15/2021] [Indexed: 06/12/2023]
Abstract
Despite the economic and ecological importance of Hydnum species, in vitro synthesis of ectomycorrhizae of this genus has not been reported due to difficulties in establishing pure cultures. We inoculated pure cultures of 12 monokaryotic and 3 dikaryotic mycelial strains of an undescribed Hydnum albidum-like species on roots of axenic Pinus densiflora seedlings to synthesize ectomycorrhizae and to evaluate their mycorrhiza-forming ability. Six months after inoculation, both monokaryotic and dikaryotic strains formed ectomycorrhizae with Hartig net hyphae at the root cortex. Monokaryotic and dikaryotic strains exhibited similar morpho-anatomical characteristics of ectomycorrhizae, with the exception for clamped septa of emanating and outer mantle hyphae in the latter. Between monokaryotic and descendant dikaryotic strains, there were no significant differences in number of mycorrhizae in pine seedlings, whereas monokaryotic strains showed a greater total number of root tips and lower colonization rates than the descendant dikaryotic strains. These results indicate that both monokaryotic and dikaryotic mycelia of the H. albidum-like species can form mycorrhizae under axenic condition, and that can be applied toward the cultivation of hedgehog mushrooms.
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Affiliation(s)
- Ryo Sugawara
- The United Graduate School of Agricultural Sciences, Tottori University, 4-101, Koyama, Tottori, 680-8553, Japan
| | - Kozue Sotome
- Fungus/Mushroom Resource and Research Center, Faculty of Agriculture, Tottori University, 4-101, Koyama, Tottori, 680-8553, Japan
| | - Nitaro Maekawa
- Fungus/Mushroom Resource and Research Center, Faculty of Agriculture, Tottori University, 4-101, Koyama, Tottori, 680-8553, Japan
| | - Akira Nakagiri
- Fungus/Mushroom Resource and Research Center, Faculty of Agriculture, Tottori University, 4-101, Koyama, Tottori, 680-8553, Japan
| | - Naoki Endo
- Fungus/Mushroom Resource and Research Center, Faculty of Agriculture, Tottori University, 4-101, Koyama, Tottori, 680-8553, Japan.
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Shishikura M, Takemura Y, Sotome K, Maekawa N, Nakagiri A, Endo N. Four mycelial strains of Entoloma clypeatum species complex form ectomycorrhiza-like roots with Pyrus betulifolia seedlings in vitro, and one develops fruiting bodies 2 months after inoculation. Mycorrhiza 2021; 31:31-42. [PMID: 33105488 DOI: 10.1007/s00572-020-00994-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Accepted: 10/12/2020] [Indexed: 06/11/2023]
Abstract
Entoloma clypeatum species complex (ECSC) forms ectomycorrhiza-like roots (EMLR) with host plant species of Rosaceae or Ulmaceae. The EMLR colonized with ECSC are characterized by a thick fungal mantle, absence of a Hartig net structure, and collapse of the apical meristem caused by hyphal invasion. Some researchers have suggested parasitism of ECSC because of this unique mode of colonization; however, the nature of the interaction between ECSC and host plants has not been investigated in co-culture because of the difficulty of culturing this group of fungi. We established a procedure to synthesize EMLR of ECSC on pear seedlings using fungal cultures. Three conspecific strains of ECSC isolated from basidiospores and one strain isolated from EMLR were tested. Cultured mycelia were inoculated onto a modified Norkrans' C (MNC) or Hyponex-yeast-glucose (HYG) medium slant on the bottom of a polycarbonate jar and covered with autoclaved andosol or a vermiculite/sphagnum moss mixture (VSM); an axenically cultivated Pyrus betulifolia seedling was then planted in the jar. Five months after inoculation, the formation of EMLR with Hartig net-like hyphae was confirmed in all of the experimental plots. However, the rate of root colonization was significantly higher in experimental plots using andosol than in those using VSM. The growth of pear seedlings was similar irrespective of the level of root colonization, suggesting commensalism rather than parasitism of ECSC. One experimental plot using strain A3, an MNC slant, and andosol as a substrate produced ECSC fruiting bodies with mature basidia and basidiospores. The results suggested that our procedure enables the synthesis of EMLR of ECSC and cultivation of their fruiting bodies.
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Affiliation(s)
- Manami Shishikura
- Graduate School of Sustainable Science, Tottori University, 4-101 Koyama, Tottori, 680-8553, Japan
| | - Yoshihiro Takemura
- Faculty of Agriculture, Tottori University, 4-101 Koyama, Tottori, 680-8553, Japan
| | - Kozue Sotome
- Fungus/Mushroom Resource and Research Center, Faculty of Agriculture, Tottori University, 4-101 Koyama, Tottori, 680-8553, Japan
| | - Nitaro Maekawa
- Fungus/Mushroom Resource and Research Center, Faculty of Agriculture, Tottori University, 4-101 Koyama, Tottori, 680-8553, Japan
| | - Akira Nakagiri
- Fungus/Mushroom Resource and Research Center, Faculty of Agriculture, Tottori University, 4-101 Koyama, Tottori, 680-8553, Japan
| | - Naoki Endo
- Fungus/Mushroom Resource and Research Center, Faculty of Agriculture, Tottori University, 4-101 Koyama, Tottori, 680-8553, Japan.
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Maekawa N, Yokoi H, Sotome K, Matsuura K, Tanaka C, Endo N, Nakagiri A, Ushijima S. Athelia termitophila sp. nov. is the teleomorph of the termite ball fungus Fibularhizoctonia sp. MYCOSCIENCE 2020. [DOI: 10.1016/j.myc.2020.08.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Matozaki T, Hattori T, Maekawa N, Nakagiri A, Ishikawa NK, Sotome K. Hirticrusta gen. nov. segregated from Neofomitella in Polyporaceae (Polyporales). MYCOSCIENCE 2020. [DOI: 10.1016/j.myc.2020.03.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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15
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Endo N, Ushijima S, Nagasawa E, Sugawara R, Okuda Y, Sotome K, Nakagiri A, Maekawa N. Taxonomic reconsideration of Tricholoma foliicola (Agaricales, Basidiomycota) based on basidiomata morphology, living culture characteristics, and phylogenetic analyses. MYCOSCIENCE 2019. [DOI: 10.1016/j.myc.2019.07.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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16
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Shishikura M, Sugawara R, Takemura Y, Sotome K, Maekawa N, Nakagiri A, Endo N. First successful isolation of Entoloma clypeatum species complex from basidiospores. MYCOSCIENCE 2019. [DOI: 10.1016/j.myc.2019.02.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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17
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Liu D, Yu Wang X, Wang LS, Maekawa N, Hur JS. Sulzbacheromyces sinensis, an Unexpected Basidiolichen, was Newly Discovered from Korean Peninsula and Philippines, with a Phylogenetic Reconstruction of Genus Sulzbacheromyces. Mycobiology 2019; 47:191-199. [PMID: 31448139 PMCID: PMC6691760 DOI: 10.1080/12298093.2019.1617825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Revised: 04/30/2019] [Accepted: 05/07/2019] [Indexed: 06/10/2023]
Abstract
Most of lichens are formed by Ascomycota, less than 1% are lichenized Basidiomycota. The flora investigation of lichenized Ascomycota of South Korea has been well studied in the past three decades; however, prior to this study, none of basidiolichens was discovered. During the recent excursion, an unexpected clavarioid basidiolichen, Sulzbacheromyces sinensis was collected. Morphology and ecology has been recorded in detail. DNA was extracted, and ITS, 18S, 28S nuclear rDNA were generated. In order to further confirm the systematic position of the Korean specimens, maximum likelihood and Bayesian inference analysis including all the species of the order Lepidostromatales were conducted based on the ITS. As a result, the phylogenetic tree of the order Lepidostromatales was reconstructed, which differed from the previous studies. The inferred phylogenetic tree showed that species of Sulzbacheromyces in three different continents (Asia, South Africa and South America) were separated into three clades with support. In this study, the species worldwide distribution map of Lepidostromatales was illustrated, and S. sinensis had a widest distribution range (paleotropical extend to the Sino-Japanese) than other species (paleotropical or neotropical). Prior to this study, the range of distribution, southernmost and northernmost points and the fruiting time of S. sinensis were recorded, and the genus Sulzbacheromyces was firstly reported from Korean peninsula and Philippines.
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Affiliation(s)
- Dong Liu
- Korean Lichen Research Institute (KoLRI), Sunchon National University, Suncheon, Korea
| | - Xin Yu Wang
- Key Laboratory for Plant Diversity and Biogeography of East Asia Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
| | - Li Song Wang
- Key Laboratory for Plant Diversity and Biogeography of East Asia Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
| | - Nitaro Maekawa
- Fungus/Mushroom Resource and Research Center, Faculty of Agriculture, Tottori University, Tottori, Japan
| | - Jae-Seoun Hur
- Korean Lichen Research Institute (KoLRI), Sunchon National University, Suncheon, Korea
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Sugawara R, Yamada A, Kawai M, Sotome K, Maekawa N, Nakagiri A, Endo N. Establishment of monokaryotic and dikaryotic isolates of Hedgehog mushrooms (Hydnum repandum and related species) from basidiospores. MYCOSCIENCE 2019. [DOI: 10.1016/j.myc.2019.02.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Sotome K, Hattori T, Maekawa N, Matozaki T. Melanoderma boninense, a new species of Melanoderma (Polyporales, Agaricomycota) from the Bonin Islands in Japan. MYCOSCIENCE 2019. [DOI: 10.1016/j.myc.2019.02.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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20
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Nishiyama C, Tateishi C, Hashimoto T, Nishida M, Imanishi A, Shiratori T, Maekawa N, Tsuruta D, Fukai K. Exacerbation of well-controlled bullous pemphigoid by the administration of a dipeptidyl peptidase-4 inhibitor. Clin Exp Dermatol 2019; 44:830-832. [PMID: 30859617 DOI: 10.1111/ced.13962] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/06/2019] [Indexed: 12/21/2022]
Affiliation(s)
- C Nishiyama
- Department of Dermatology, Osaka City General Hospital, Osaka, Japan
| | - C Tateishi
- Department of Dermatology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - T Hashimoto
- Department of Dermatology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - M Nishida
- Department of Dermatology, Osaka City General Hospital, Osaka, Japan
| | - A Imanishi
- Department of Dermatology, Osaka City General Hospital, Osaka, Japan
| | - T Shiratori
- Department of Dermatology, Osaka City General Hospital, Osaka, Japan
| | - N Maekawa
- Department of Dermatology, Osaka City General Hospital, Osaka, Japan
| | - D Tsuruta
- Department of Dermatology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - K Fukai
- Department of Dermatology, Osaka City General Hospital, Osaka, Japan
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Shiratori T, Takeichi T, Kono M, Nishida M, Imanishi A, Maekawa N, Kawamura N, Fukai K. A case of pustular psoriasis possibly precipitated by periodic oestrogen/gestagen therapy for Turner syndrome. Clin Exp Dermatol 2019; 44:e240-e241. [PMID: 30963610 DOI: 10.1111/ced.13979] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/05/2010] [Indexed: 11/29/2022]
Affiliation(s)
- T Shiratori
- Department of Dermatology, Osaka City General Hospital, Osaka, Japan
| | - T Takeichi
- Department of Dermatology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - M Kono
- Department of Dermatology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - M Nishida
- Department of Dermatology, Osaka City General Hospital, Osaka, Japan
| | - A Imanishi
- Department of Dermatology, Osaka City General Hospital, Osaka, Japan
| | - N Maekawa
- Department of Dermatology, Osaka City General Hospital, Osaka, Japan
| | - N Kawamura
- Department of Gynecology, Osaka City General Hospital, Osaka, Japan
| | - K Fukai
- Department of Dermatology, Osaka City General Hospital, Osaka, Japan
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Ishihara A, Ashida C, Ube N, Abe M, Hiyoshi H, Umezu K, Endo N, Sotome K, Maekawa N, Nakagiri A, Osaki-Oka K, Ichiyanagi T, Ueno K. Isolation of isolactarane sesquiterpenes from a Phlebia tremellosa culture filtrate and their growth promotion effects on lettuce roots. J Pestic Sci 2019; 44:9-14. [PMID: 30820167 PMCID: PMC6389836 DOI: 10.1584/jpestics.d18-056] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Accepted: 11/07/2018] [Indexed: 06/09/2023]
Abstract
The ethyl acetate extract of the culture filtrate of Phlebia tremellosa promoted elongation of the lateral roots of lettuce seedlings at 250 µg/mL. We purified two compounds that promote root elongation by using activity-guided chromatographic fractionation. On the basis of spectroscopic analyses, these compounds were identified to be isolactarane sesquiterpenes derived from the dehydrogenation of merulactone, which was previously isolated from the same species. We named the purified compounds phlelactones A and B. Phlelactones A and B promoted primary root elongation at 100-300 and 10-30 µg/mL and the elongation and formation of lateral roots at 300-1000 and 30-100 µg/mL, respectively.
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Affiliation(s)
- Atsushi Ishihara
- Faculty of Agriculture, Tottori University, Tottori 680–8553, Japan
| | - Chisaki Ashida
- Faculty of Agriculture, Tottori University, Tottori 680–8553, Japan
| | - Naoki Ube
- The United Graduate School of Agricultural Sciences, Tottori University, Tottori 680–8553, Japan
| | - Masato Abe
- Faculty of Agriculture, Ehime University, Matsuyama 790–8566, Japan
| | | | - Kazuto Umezu
- Kumiai Chemical Industry, Co., Ltd., Tokyo 110–8782, Japan
| | - Naoki Endo
- Faculty of Agriculture, Tottori University, Tottori 680–8553, Japan
| | - Kozue Sotome
- Faculty of Agriculture, Tottori University, Tottori 680–8553, Japan
| | - Nitaro Maekawa
- Faculty of Agriculture, Tottori University, Tottori 680–8553, Japan
| | - Akira Nakagiri
- Faculty of Agriculture, Tottori University, Tottori 680–8553, Japan
| | - Kumiko Osaki-Oka
- Faculty of Agriculture, Tottori University, Tottori 680–8553, Japan
| | | | - Kotomi Ueno
- Faculty of Agriculture, Tottori University, Tottori 680–8553, Japan
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23
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Affiliation(s)
- Akihiko Tsuneda
- Tottori Mycological Institute, 211 Kokoge, Tottori 68911, Japan
| | | | - Warwick M. Gill
- Tottori Mycological Institute, 211 Kokoge, Tottori 68911, Japan
| | - Nitaro Maekawa
- Tottori Mycological Institute, 211 Kokoge, Tottori 68911, Japan
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Ogura-Tsujita Y, Gebauer G, Xu H, Fukasawa Y, Umata H, Tetsuka K, Kubota M, Schweiger JMI, Yamashita S, Maekawa N, Maki M, Isshiki S, Yukawa T. The giant mycoheterotrophic orchid Erythrorchis altissima is associated mainly with a divergent set of wood-decaying fungi. Mol Ecol 2018; 27:1324-1337. [PMID: 29419910 DOI: 10.1111/mec.14524] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Revised: 01/14/2018] [Accepted: 01/19/2018] [Indexed: 11/28/2022]
Abstract
The climbing orchid Erythrorchis altissima is the largest mycoheterotroph in the world. Although previous in vitro work suggests that E. altissima has a unique symbiosis with wood-decaying fungi, little is known about how this giant orchid meets its carbon and nutrient demands exclusively via mycorrhizal fungi. In this study, the mycorrhizal fungi of E. altissima were molecularly identified using root samples from 26 individuals. Furthermore, in vitro symbiotic germination with five fungi and stable isotope compositions in five E. altissima at one site were examined. In total, 37 fungal operational taxonomic units (OTUs) belonging to nine orders in Basidiomycota were identified from the orchid roots. Most of the fungal OTUs were wood-decaying fungi, but underground roots had ectomycorrhizal Russula. Two fungal isolates from mycorrhizal roots induced seed germination and subsequent seedling development in vitro. Measurement of carbon and nitrogen stable isotope abundances revealed that E. altissima is a full mycoheterotroph whose carbon originates mainly from wood-decaying fungi. All of the results show that E. altissima is associated with a wide range of wood- and soil-inhabiting fungi, the majority of which are wood-decaying taxa. This generalist association enables E. altissima to access a large carbon pool in woody debris and has been key to the evolution of such a large mycoheterotroph.
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Affiliation(s)
| | - Gerhard Gebauer
- Bayreuth Center of Ecology and Environmental Research (BayCEER), University of Bayreuth, Bayreuth, Germany
| | - Hui Xu
- Botanical Gardens, Tohoku University, Aoba-ku, Sendai, Japan
| | - Yu Fukasawa
- Graduate School of Agricultural Science, Tohoku University, Osaki, Miyagi, Japan
| | - Hidetaka Umata
- Faculty of Agriculture, Kagoshima University, Korimoto, Kagoshima, Japan
| | - Kenshi Tetsuka
- Yakushima Yakutane-goyo Reseaech Group, Yakushima-machi, Kagoshima, Japan
| | - Miho Kubota
- Faculty of Agriculture, Saga University, Saga, Japan
| | - Julienne M-I Schweiger
- Bayreuth Center of Ecology and Environmental Research (BayCEER), University of Bayreuth, Bayreuth, Germany
| | - Satoshi Yamashita
- Graduate School of Technology, Industrial and Social Sciences, Tokushima University, Minami-Josanjima, Tokushima, Japan
| | - Nitaro Maekawa
- Faculty of Agriculture, Tottori University, Koyamaminami, Tottori, Japan
| | - Masayuki Maki
- Botanical Gardens, Tohoku University, Aoba-ku, Sendai, Japan
| | - Shiro Isshiki
- Faculty of Agriculture, Saga University, Saga, Japan
| | - Tomohisa Yukawa
- Tsukuba Botanical Garden, National Museum of Nature and Science, Tsukuba, Ibaraki, Japan
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Ishihara A, Ide Y, Bito T, Ube N, Endo N, Sotome K, Maekawa N, Ueno K, Nakagiri A. Novel tyrosinase inhibitors from liquid culture of Neolentinus lepideus. Biosci Biotechnol Biochem 2018; 82:22-30. [PMID: 29297258 DOI: 10.1080/09168451.2017.1415125] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Tyrosinase is the key enzyme that controls melanin formation in the human skin. We performed a screening of 96 extracts of mushroom cultures and fruiting bodies for examining their inhibitory activity against mushroom tyrosinase. The ethyl acetate extracts of culture filtrate of Neolentinus lepideus exhibited the strongest inhibitory activity. The active compounds 1 and 2 were purified by repeated chromatographic separations from the extract. On the basis of spectroscopic analyses, 1 and 2 were identified to be 1,3-dihydroisobenzofuran-4,5,7-triol and 5-methoxy-1,3-dihydroisobenzofuran-4,7-diol, respectively. Lineweaver-Burk plot of the enzyme reaction in the presence of 1 indicated that 1 was a potent competitive inhibitor. The respective IC50 values of 1 and 2 were 173 and 263 μg/mL. Compound 1 at 15 μg/mL suppressed melanin accumulation stimulated by α-MSH in the murine melanoma B16 cells, as well as the induced accumulation of both tyrosinase transcript and protein without inhibiting cell proliferation.
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Affiliation(s)
- Atsushi Ishihara
- a Faculty of Agriculture , Tottori University , Tottori , Japan.,b Fungus/Mushroom Resource and Research Center , Tottori University , Tottori , Japan
| | - Yuri Ide
- a Faculty of Agriculture , Tottori University , Tottori , Japan
| | - Tomohiro Bito
- a Faculty of Agriculture , Tottori University , Tottori , Japan
| | - Naoki Ube
- c The United Graduate School of Agricultural Sciences , Tottori University , Tottori , Japan
| | - Naoki Endo
- b Fungus/Mushroom Resource and Research Center , Tottori University , Tottori , Japan
| | - Kozue Sotome
- b Fungus/Mushroom Resource and Research Center , Tottori University , Tottori , Japan
| | - Nitaro Maekawa
- b Fungus/Mushroom Resource and Research Center , Tottori University , Tottori , Japan
| | - Kotomi Ueno
- a Faculty of Agriculture , Tottori University , Tottori , Japan
| | - Akira Nakagiri
- b Fungus/Mushroom Resource and Research Center , Tottori University , Tottori , Japan
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Orihara T, Lebel T, Ge ZW, Smith M, Maekawa N. Evolutionary history of the sequestrate genus Rossbeevera ( Boletaceae) reveals a new genus Turmalinea and highlights the utility of ITS minisatellite-like insertions for molecular identification. Persoonia 2016; 37:173-198. [PMID: 28232764 PMCID: PMC5315287 DOI: 10.3767/003158516x691212] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/20/2015] [Accepted: 12/02/2015] [Indexed: 11/25/2022]
Abstract
The sequestrate (truffle-like) basidiomycete genera Rossbeevera, Chamonixia, and Octaviania are closely related to the epigeous mushroom genera Leccinum and Leccinellum. In order to elucidate the properties and placement of several undescribed sequestrate taxa in the group and to reveal the evolutionary history of Rossbeevera and its allies, we conducted phylogenetic analyses based on three nuclear (ITS, nLSU, EF-1α) and two mitochondrial DNA loci (ATP6 and mtSSU) as well as precise morphological observations. Phylogenetic analyses of three nuclear loci suggest a complex evolutionary history with sequestrate fruiting bodies present in several clades, including a previously unrecognized sister clade to Rossbeevera. Here we propose a new sequestrate genus, Turmalinea, with four new species and one new subspecies as well as two new species of Rossbeevera. The three-locus nuclear phylogeny resolves species-level divergence within the Rossbeevera-Turmalinea lineage, whereas a separate phylogeny based on two mitochondrial genes corresponds to geographic distance within each species-level lineage and suggests incomplete lineage sorting (ILS) and gene introgression within several intraspecific lineages of Rossbeevera. Furthermore, topological incongruence among the three nuclear single-locus phylogenies suggests that ancient speciation within Rossbeevera probably involved considerable ILS. We also found an unusually long, minisatellite-like insertion within the ITS2 in all Rossbeevera and Turmalinea species. A barcode gap analysis demonstrates that the insertion is more informative for discrimination at various taxonomic levels than the rest of the ITS region and could therefore serve as a unique molecular barcode for these genera.
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Affiliation(s)
- T. Orihara
- Kanagawa Prefectural Museum of Natural History, 499 Iryuda, Odawara-shi, Kanagawa 250-0031, Japan
| | - T. Lebel
- National Herbarium of Victoria, Royal Botanic Gardens Melbourne, Private Bag 2000, Birdwood Ave, South Yarra, Vic., 3141, Australia
| | - Z.-W. Ge
- Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - M.E. Smith
- Department of Plant Pathology, University of Florida, Gainesville FL 32611-0680, USA
| | - N. Maekawa
- Fungus/Mushroom Resource and Research Center, Faculty of Agriculture, Tottori University, Tottori 680-8553, Japan
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Fukasawa Y, Takahashi K, Arikawa T, Hattori T, Maekawa N. Fungal wood decomposer activities influence community structures of myxomycetes and bryophytes on coarse woody debris. FUNGAL ECOL 2015. [DOI: 10.1016/j.funeco.2014.11.003] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Namaki S, Maekawa N, Iwata J, Namaki M, Yonehara Y. Correlation between hyoid bone position, width of pharynx and swallowing function before-after orthognathic surgery for mandibular deficiency. J Oral Maxillofac Surg 2014. [DOI: 10.1016/j.joms.2014.06.221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Namaki S, Maekawa N, Iwata J, Sawada K, Namaki M, Bjornland T, Yonehara Y. Long-term evaluation of swallowing function before and after sagittal split ramus osteotomy. Int J Oral Maxillofac Surg 2014; 43:856-61. [PMID: 24679852 DOI: 10.1016/j.ijom.2014.03.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2013] [Revised: 01/30/2014] [Accepted: 03/03/2014] [Indexed: 11/25/2022]
Abstract
The aim of this study was to determine whether mandibular setback by sagittal split ramus osteotomy (SSRO) influences swallowing function. The subjects were 14 patients with skeletal class III malocclusions who underwent setback surgery by SSRO. Morphological changes were studied on cephalograms, and swallowing function was evaluated by videofluorography before the operation (T0) and at 7-10 days (T1), 3 months (T2), and 6 months (T3) after surgery. The angle between nasion, sella, and hyoid bone (HSN) and the sella-hyoid distance had increased significantly at T1. The hyoid bone returned to the preoperative position at T2. There were no significant changes in the oropharyngeal space at any time. On videofluorographic assessment, lingual movement, soft palate movement, and epiglottic movement had decreased at T1, but all patients recovered at T2. The oral transit time was significantly longer at T1 than at T0. Our results confirm that SSRO influences swallowing function. Swallowing function appears to stabilize by 3 months after surgery.
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Affiliation(s)
- S Namaki
- Department of Oral and Maxillofacial Surgery, Nihon University School of Dentistry, Tokyo, Japan.
| | - N Maekawa
- Department of Oral and Maxillofacial Surgery, Nihon University School of Dentistry, Tokyo, Japan
| | - J Iwata
- Department of Oral and Maxillofacial Surgery, Nihon University School of Dentistry, Tokyo, Japan
| | - K Sawada
- Department of Oral and Maxillofacial Radiology, Nihon University School of Dentistry, Tokyo, Japan
| | - M Namaki
- Department of Oral and Maxillofacial Surgery, Juntendo University School of Medicine, Tokyo, Japan
| | - T Bjornland
- Department of Oral Surgery and Oral Medicine, Faculty of Dentistry, University of Oslo, Oslo, Norway
| | - Y Yonehara
- Department of Oral and Maxillofacial Surgery, Nihon University School of Dentistry, Tokyo, Japan
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Shirouzu T, Hirose D, Oberwinkler F, Shimomura N, Maekawa N, Tokumasu S. Combined molecular and morphological data for improving phylogenetic hypothesis in Dacrymycetes. Mycologia 2012; 105:1110-25. [PMID: 22962355 DOI: 10.3852/12-147] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
We analyzed the DNA sequences of four gene regions, 28S and 18S rDNA, the ITS region and rpb2, to obtain a high resolution phylogenetic tree of Dacrymycetes. In addition, we comparatively studied micro- and macromorphological characteristics of representative species. The traditional generic classification based on morphological characteristics was not reflected by our molecular phylogenies. Ancestral state reconstructions indicated that the morphology of basidia and clamp connections are evolutionarily stable. In contrast, basidiocarps and basidiospore septation patterns appear variable. Dacrymyces unisporus shares the dolipores with non-perforate parenthesomes typical of other dacrymycetous taxa but is a unique species having predominantly non-bifurcate basidia and subglobose to ovoid basidiospores with transverse and longitudinal septa. In molecular phylogenies this species is a member of Dacrymycetes but always occupies a sister position in relation to the rest of the Dacrymycetes. Based on our results we propose a new genus, Unilacryma, for D. unisporus. For proper accommodation of this taxon, we introduce the family Unilacrymaceae and the order Unilacrymales.
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Affiliation(s)
- Takashi Shirouzu
- Fungus/Mushroom Resource and Research Center, Faculty of Agriculture, Tottori University, 4-101 Minami, Koyama, Tottori 680-8553, Japan
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Kim CS, Shirouzu T, Nakagiri A, Sotome K, Nagasawa E, Maekawa N. Trichoderma mienum sp. nov., isolated from mushroom farms in Japan. Antonie Van Leeuwenhoek 2012; 102:629-41. [PMID: 22678077 DOI: 10.1007/s10482-012-9758-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2012] [Accepted: 05/28/2012] [Indexed: 10/28/2022]
Abstract
During an investigation of Hypocrea/Trichoderma species inhabiting mushroom bedlogs, we found five strains of an undescribed species from a culture collection. These were analyzed using a combined approach, including morphology of holomorph, cultural studies, and phylogenetic analyses of the rRNA gene cluster of the internal transcribed spacer region, translation elongation factor 1-α, and RNA polymerase subunit II gene sequences. Distinctive morphological characters include stromata with green ascospores produced on potato dextrose agar medium, and Gliocladium-like to irregularly Verticillium-like conidiophores. In phylogenetic analyses, this species belongs to the Semiorbis clade, but its morphological characteristics do not match the other members of this clade. Based on morphological observations and phylogenetic analyses, we describe this as a new species, Trichoderma mienum, representing its Hypocrea teleomorph and Trichoderma anamorph.
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Affiliation(s)
- Chang Sun Kim
- The United Graduate School of Agricultural Sciences, Tottori University, 4-101 Koyama-cho-minami, Tottori, 680-8553, Japan
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Shimomura N, Sawada K, Aimi T, Maekawa N, Matsumoto T. Karyological characterization of meiosis, post-meiotic mitosis and nuclear migration in the ectomycorrhizal fungus Rhizopogon roseolus (= R. rubescens). Mycologia 2012; 104:981-7. [PMID: 22505433 DOI: 10.3852/11-279] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Karyological characteristics during basidiosporogenesis of Rhizopogon roseolus, a member of the hypogeous Agaricomycetes, were studied by light and transmission electron microscopy. More than 1000 tissue fragments of young basidiomata were stained with HCl-Giemsa and observed by a light microscopy to evaluate nuclear behavior. Basidium morphology in the hymenium was observed by transmission electron microscopy. Meiosis and post-meiotic mitosis took place in the center of the basidium. Sterigmata appeared when the first meiotic division occurred, and the center of the basidium became constricted when the second meiotic division occurred. Asynchronous nuclear migration from the basidium into the basidiospores occurred after post-meiotic mitosis, producing eight uninucleate basidiospores. The nucleus migrated patchily into basidiospores. The pattern of post-meiotic mitosis of R. roseolus, in which post-meiotic mitosis took place in the center of the basidium, is reported for the first time.
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Ushijima S, Nagasawa E, Suhara H, Maekawa N. The genus <i>Ponticulomyces</i> (Physalacriaceae, Agaricales) from Japan. MYCOSCIENCE 2012. [DOI: 10.47371/s10267-011-0147-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/01/2023]
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Okamoto K, Nitta Y, Maekawa N, Yanase H. Direct ethanol production from starch, wheat bran and rice straw by the white rot fungus Trametes hirsuta. Enzyme Microb Technol 2011; 48:273-7. [DOI: 10.1016/j.enzmictec.2010.12.001] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2010] [Revised: 11/25/2010] [Accepted: 12/01/2010] [Indexed: 10/18/2022]
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Suhara H, Kamei I, Maekawa N, Kondo R. Biotransformation of polychlorinated dibenzo-<i>p</i>-dioxin by <i>Coprinellus</i> species. MYCOSCIENCE 2011. [DOI: 10.47371/s10267-010-0062-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/01/2023]
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Okamoto K, Imashiro K, Akizawa Y, Onimura A, Yoneda M, Nitta Y, Maekawa N, Yanase H. Production of ethanol by the white-rot basidiomycetes Peniophora cinerea and Trametes suaveolens. Biotechnol Lett 2010; 32:909-13. [DOI: 10.1007/s10529-010-0243-7] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2009] [Revised: 02/23/2010] [Accepted: 02/24/2010] [Indexed: 11/28/2022]
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Suhara H, Maekawa N, Ushijima S, Kinjo K, Hoshi Y. <i>Asterostroma</i> species (<i>Basidiomycota</i>) from mangrove forests in Japan. MYCOSCIENCE 2010. [DOI: 10.47371/mycosci.myc51075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/01/2023]
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Shimomura N, Teruyuki Matsumoto TA, Maekawa N, Otani H. Ultrastructure of developing basidiospores in Rhizopogon roseolus (= R. rubescens). MYCOSCIENCE 2008. [DOI: 10.1007/s10267-007-0388-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Shimomura N, Aimi T, Matsumoto T, Maekawa N, Otani H. Ultrastructure of developing basidiospores in <i>Rhizopogon roseolus</i> (= <i>R. rubescens</i>). MYCOSCIENCE 2008. [DOI: 10.47371/mycosci.myc49035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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Iwanaga Y, Ueno M, Ueki M, Huang CL, Tomita S, Okamoto Y, Ogawa T, Ueda N, Maekawa N, Sakamoto H. The expression of osteopontin is increased in vessels with blood-brain barrier impairment. Neuropathol Appl Neurobiol 2007; 34:145-54. [PMID: 17973907 DOI: 10.1111/j.1365-2990.2007.00877.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
AIMS We previously reported that the blood-brain barrier (BBB) function was deteriorated in vessels located along hippocampal fissures in stroke-prone spontaneously hypertensive rats (SHRSP). In this study, we examined changes of gene expression in the BBB-damaged vessels of SHRSP. METHODS Vascular samples were microdissected from the hippocampi of SHRSP and Wistar-Kyoto (WKY) as a control and the difference in gene expression between the BBB-damaged vessels in SHRSP and vessels without BBB damage in WKY was examined by a microarray. The differences in gene and protein expression between brain tissues in the two strains of rats were examined using real-time quantitative reverse transcriptase-polymerase chain reaction (RT-PCR), Western blotting and immunohistochemistry. RESULTS The microarray assay revealed that the ratio of osteopontin gene expression in the vascular tissue of the hippocampi of SHRSP to that of WKY was the highest among 8435 genes. Real-time RT-PCR analysis revealed that the gene expression of osteopontin was significantly increased in the hippocampal samples of SHRSP compared with that in the hippocampal samples of WKY rats or with that in the cortical samples of SHRSP. Immunohistochemical and Western blot analyses showed that the osteopontin protein expression was seen in perivascular ED1-positive macrophages/microglial cells located around hippocampal fissures and significantly increased in the hippocampi of SHRSP compared with that of WKY. CONCLUSIONS These findings indicate that the expression of osteopontin is increased in BBB-damaged vessels in hypertensive SHRSP compared with that in vessels without BBB impairment in WKY rats, suggesting a role for osteopontin in BBB function.
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Affiliation(s)
- Y Iwanaga
- Department of Anaesthesiology and Emergency Medicine, Faculty of Medicine, Kagawa University, Kagawa, Japan
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Kim SG, Maekawa N, Matsuzaki A, Sakurai K, Yoshikawa T. Lepton flavor violation in a supersymmetric grand unified theory model with nonuniversal sfermion masses. Int J Clin Exp Med 2007. [DOI: 10.1103/physrevd.75.115008] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Abstract
Haloaleurodiscus gen. nov. (Homobasidiomycetes) is described from Japanese mangrove forests with one species H. mangrovei sp. nov. The genus is morphologically characterized by having resupinate basidioma, nodose-septate hyphae, sulphoaldehyde-positive gloeocystidia, dendrohyphidia and amyloid basidiospores with minute warts. These morphological features are similar to those of Aleurodiscus s. lat., but H. mangrovei differs from the Aleurodiscus primarily in occurring in white pocket-rot and is not closely related based on ribosomal DNA sequence analyses. Molecular data suggest that this species is phylogenetically placed in the root of the 'Peniophorales' clade. In addition, ecological and physiological features of the species are provided.
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Affiliation(s)
- Nitaro Maekawa
- The Tottori Mycological Institute, 211, Kokoge, Tottori 689-1125, Japan.
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Maekawa N, Suhara H, Kondo R, Kinjo K. Corticioid fungi (Basidiomycota) in mangrove forests of the islands of Iriomote and Okinawa, Japan. MYCOSCIENCE 2003. [DOI: 10.1007/s10267-003-0133-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Nilsson RH, Hallenberg N, Nordén B, Maekawa N, Wu SH. Phylogeography of Hyphoderma setigerum (Basidiomycota) in the Northern Hemisphere. Mycol Res 2003; 107:645-52. [PMID: 12951791 DOI: 10.1017/s0953756203007925] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Previous studies of morphological variation in the homobasidiomycete Hyphoderma setigerum have lead to suspicions of a species complex. This study explores variation in DNA sequences from the nuclear ribosomal ITS region of 45 specimens from America, Asia, and Europe in a phylogeographic context. Based on molecular analysis, morphological studies, and crossing tests, nine preliminary taxa are shown to exist inside the species complex, and the two previously described segregate species H. subsetigerum and H. nudicephalum are confirmed. The molecular analysis shows evidence of allopatric differentiation over intercontinental distances. Only one of the nine well-supported clades has a geographic distribution spanning more than one continent, probably indicating the importance of vicariance in the evolution of this species complex. The basionym of H. setigerum, Thelephora setigera, is neotypified to fix the application of that name.
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Affiliation(s)
- R Henrik Nilsson
- Botanical Institute, Göteborg University, Box 461, S-405 30 Göteborg, Sweden.
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