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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] [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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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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Ushijima S, Nagasawa E, Kigawa S, Maekawa N. A new species of Dactylosporina (Physalacriaceae, Agaricales) from Japan. MYCOSCIENCE 2015. [DOI: 10.1016/j.myc.2014.01.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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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] [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] [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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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] [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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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] [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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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] [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 Ponticulomyces (Physalacriaceae, Agaricales) from Japan. MYCOSCIENCE 2012. [DOI: 10.1007/s10267-011-0147-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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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] [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] [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] [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] [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. Asterostroma species (Basidiomycota) from mangrove forests in Japan. MYCOSCIENCE 2010. [DOI: 10.1007/s10267-009-0006-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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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] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Kuniyuki S, Yoshida Y, Maekawa N, Yamanaka K. Bacteriological Study of Epidermal Cysts. Acta Derm Venereol 2008; 88:23-5. [DOI: 10.2340/00015555-0348] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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Maekawa N, Elgorashi EE, Satoh H. In Vitro Anti-inflammatory Activity of Selected Japanese Higher Basidiomycetes Mushrooms. Int J Med Mushrooms 2008. [DOI: 10.1615/intjmedmushr.v10.i1.60] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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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] [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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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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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47
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Shimomura N, Murakami S, Matsumoto T, Maekawa N, Hasebe K. Isolation of a homothallic mutant in Lentinula edodes. MYCOSCIENCE 2007. [DOI: 10.1007/s10267-006-0343-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Maekawa N, Suhara H, Kinjo K, Kondo R, Hoshi Y. Haloaleurodiscus mangrovei gen. sp. nov. (Basidiomycota) from mangrove forests in Japan. ACTA ACUST UNITED AC 2005; 109:825-32. [PMID: 16121569 DOI: 10.1017/s095375620500287x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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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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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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50
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Nilsson RH, Hallenberg N, Nordén B, Maekawa N, Wu SH. Phylogeography of Hyphoderma setigerum (Basidiomycota) in the Northern Hemisphere. MYCOLOGICAL RESEARCH 2003; 107:645-52. [PMID: 12951791 DOI: 10.1017/s0953756203007925] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [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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