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Akiyoshi Yamada - One of the best experts on this subject based on the ideXlab platform.
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Endogone corticioides sp. nov. from subalpine conifer forests in Japan and China, and its multi-locus phylogeny
Mycoscience, 2017Co-Authors: Kohei Yamamoto, Yousuke Degawa, Masaki Fukuda, Yusuke Takashima, Akiyoshi YamadaAbstract:Abstract Endogone corticioides sp. nov. was described from subalpine conifer forests in Japan and China. This species is similar to E. pisiformis in its yellowish sporocarps and zygosporangia on the equal empty gametangia. Endogone corticioides was clearly distinguished from E. pisiformis based on its resupinate sporocarp, the presence of hyphal peg-like structures on the peridium, and abundant thick-walled hyphae in the gleba. Phylogenetic analysis of the small and large subunit nuclear ribosomal RNA and the elongation factor-1α genes suggested that E. corticioides is closely related to E. pisiformis. Limited vegetative growth from the surface-sterilized sporocarps on agar media was shown.
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First detection of Endogone ectomycorrhizas in natural oak forests
Mycorrhiza, 2016Co-Authors: Kohei Yamamoto, Naoki Endo, Yousuke Degawa, Masaki Fukuda, Akiyoshi YamadaAbstract:The order Endogonales in Mucoromycotina, an early divergent lineage of fungi, includes ectomycorrhizal (EM) fungi. This order is therefore considered a key taxon for elucidation of the evolution of EM associations. Recent studies have revealed high diversity of EM lineages of Basidiomycota and Ascomycota; however, EM associations of Endogonales and its relatives remain largely unknown. In this study, EM root tips with a unique fungal sheath, with aseptate and highly branched hyphae of variable widths, were identified in Quercus acutissima and Quercus crispula forests in the temperate zone of Japan. The mycobionts were confirmed as Endogone sp., which were placed as a sister clade of Endogone pisiformis, based on phylogenetic analyses of the small and large subunits of the nuclear ribosomal RNA and elongation factor-1α genes. This is the first report of EM of Endogone in natural forests of the Northern Hemisphere and the first finding on Quercus.
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Morphology and phylogeny of four Endogone species and Sphaerocreas pubescens collected in Japan
Mycological Progress, 2015Co-Authors: Kohei Yamamoto, Yousuke Degawa, Masaki Fukuda, Dai Hirose, Akiyoshi YamadaAbstract:The order Endogonales within Mucoromycotina includes several ectomycorrhizal species and endophytes of lower land plants. As such, this order is a key taxon for investigation of the evolutionary process of plant–fungal symbioses. However, no taxonomic study of Endogonales based on morphological and phylogenetic data has been performed, and the geographic distribution of this order in Asia remains largely unknown. We collected E. incrassata, E. pisiformis, E. flammicorona, and E. lactiflua from forests in Japan, thus representing their first description in Asia. Collected sporocarps were examined microscopically to observe details of hyphal structures, particularly in zygosporangia and gametangia. In addition, we collected Japanese Sphaerocreas pubescens, recently reported to be related to Endogone-like mycobionts of liverworts, and described its morphology. Species were also analyzed phylogenetically based on large-subunit nuclear ribosomal RNA gene sequences. The phylogenetic relationships of the four Endogone species were supported by their zygosporangial morphogenesis: group A, comprising E. incrassata and E. pisiformis, formed homogametic zygosporangia with pale-colored sporangiothecia, whereas species in group B, E. flammicorona and E. lactiflua, formed heterogametic zygosporangia with orange-colored sporangiothecia. Sphaerocreas pubescens was phylogenetically close to Densospora solicarpa, which is an uncertain zygomycotan ectomycorrhizal fungus; however, the relationship between the “Sphaerocreas/Densospora” clade and Endogone was unclear.
Kohei Yamamoto - One of the best experts on this subject based on the ideXlab platform.
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Endogone corticioides sp. nov. from subalpine conifer forests in Japan and China, and its multi-locus phylogeny
Mycoscience, 2017Co-Authors: Kohei Yamamoto, Yousuke Degawa, Masaki Fukuda, Yusuke Takashima, Akiyoshi YamadaAbstract:Abstract Endogone corticioides sp. nov. was described from subalpine conifer forests in Japan and China. This species is similar to E. pisiformis in its yellowish sporocarps and zygosporangia on the equal empty gametangia. Endogone corticioides was clearly distinguished from E. pisiformis based on its resupinate sporocarp, the presence of hyphal peg-like structures on the peridium, and abundant thick-walled hyphae in the gleba. Phylogenetic analysis of the small and large subunit nuclear ribosomal RNA and the elongation factor-1α genes suggested that E. corticioides is closely related to E. pisiformis. Limited vegetative growth from the surface-sterilized sporocarps on agar media was shown.
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First detection of Endogone ectomycorrhizas in natural oak forests
Mycorrhiza, 2016Co-Authors: Kohei Yamamoto, Naoki Endo, Yousuke Degawa, Masaki Fukuda, Akiyoshi YamadaAbstract:The order Endogonales in Mucoromycotina, an early divergent lineage of fungi, includes ectomycorrhizal (EM) fungi. This order is therefore considered a key taxon for elucidation of the evolution of EM associations. Recent studies have revealed high diversity of EM lineages of Basidiomycota and Ascomycota; however, EM associations of Endogonales and its relatives remain largely unknown. In this study, EM root tips with a unique fungal sheath, with aseptate and highly branched hyphae of variable widths, were identified in Quercus acutissima and Quercus crispula forests in the temperate zone of Japan. The mycobionts were confirmed as Endogone sp., which were placed as a sister clade of Endogone pisiformis, based on phylogenetic analyses of the small and large subunits of the nuclear ribosomal RNA and elongation factor-1α genes. This is the first report of EM of Endogone in natural forests of the Northern Hemisphere and the first finding on Quercus.
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Morphology and phylogeny of four Endogone species and Sphaerocreas pubescens collected in Japan
Mycological Progress, 2015Co-Authors: Kohei Yamamoto, Yousuke Degawa, Masaki Fukuda, Dai Hirose, Akiyoshi YamadaAbstract:The order Endogonales within Mucoromycotina includes several ectomycorrhizal species and endophytes of lower land plants. As such, this order is a key taxon for investigation of the evolutionary process of plant–fungal symbioses. However, no taxonomic study of Endogonales based on morphological and phylogenetic data has been performed, and the geographic distribution of this order in Asia remains largely unknown. We collected E. incrassata, E. pisiformis, E. flammicorona, and E. lactiflua from forests in Japan, thus representing their first description in Asia. Collected sporocarps were examined microscopically to observe details of hyphal structures, particularly in zygosporangia and gametangia. In addition, we collected Japanese Sphaerocreas pubescens, recently reported to be related to Endogone-like mycobionts of liverworts, and described its morphology. Species were also analyzed phylogenetically based on large-subunit nuclear ribosomal RNA gene sequences. The phylogenetic relationships of the four Endogone species were supported by their zygosporangial morphogenesis: group A, comprising E. incrassata and E. pisiformis, formed homogametic zygosporangia with pale-colored sporangiothecia, whereas species in group B, E. flammicorona and E. lactiflua, formed heterogametic zygosporangia with orange-colored sporangiothecia. Sphaerocreas pubescens was phylogenetically close to Densospora solicarpa, which is an uncertain zygomycotan ectomycorrhizal fungus; however, the relationship between the “Sphaerocreas/Densospora” clade and Endogone was unclear.
Masaki Fukuda - One of the best experts on this subject based on the ideXlab platform.
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Endogone corticioides sp. nov. from subalpine conifer forests in Japan and China, and its multi-locus phylogeny
Mycoscience, 2017Co-Authors: Kohei Yamamoto, Yousuke Degawa, Masaki Fukuda, Yusuke Takashima, Akiyoshi YamadaAbstract:Abstract Endogone corticioides sp. nov. was described from subalpine conifer forests in Japan and China. This species is similar to E. pisiformis in its yellowish sporocarps and zygosporangia on the equal empty gametangia. Endogone corticioides was clearly distinguished from E. pisiformis based on its resupinate sporocarp, the presence of hyphal peg-like structures on the peridium, and abundant thick-walled hyphae in the gleba. Phylogenetic analysis of the small and large subunit nuclear ribosomal RNA and the elongation factor-1α genes suggested that E. corticioides is closely related to E. pisiformis. Limited vegetative growth from the surface-sterilized sporocarps on agar media was shown.
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First detection of Endogone ectomycorrhizas in natural oak forests
Mycorrhiza, 2016Co-Authors: Kohei Yamamoto, Naoki Endo, Yousuke Degawa, Masaki Fukuda, Akiyoshi YamadaAbstract:The order Endogonales in Mucoromycotina, an early divergent lineage of fungi, includes ectomycorrhizal (EM) fungi. This order is therefore considered a key taxon for elucidation of the evolution of EM associations. Recent studies have revealed high diversity of EM lineages of Basidiomycota and Ascomycota; however, EM associations of Endogonales and its relatives remain largely unknown. In this study, EM root tips with a unique fungal sheath, with aseptate and highly branched hyphae of variable widths, were identified in Quercus acutissima and Quercus crispula forests in the temperate zone of Japan. The mycobionts were confirmed as Endogone sp., which were placed as a sister clade of Endogone pisiformis, based on phylogenetic analyses of the small and large subunits of the nuclear ribosomal RNA and elongation factor-1α genes. This is the first report of EM of Endogone in natural forests of the Northern Hemisphere and the first finding on Quercus.
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Morphology and phylogeny of four Endogone species and Sphaerocreas pubescens collected in Japan
Mycological Progress, 2015Co-Authors: Kohei Yamamoto, Yousuke Degawa, Masaki Fukuda, Dai Hirose, Akiyoshi YamadaAbstract:The order Endogonales within Mucoromycotina includes several ectomycorrhizal species and endophytes of lower land plants. As such, this order is a key taxon for investigation of the evolutionary process of plant–fungal symbioses. However, no taxonomic study of Endogonales based on morphological and phylogenetic data has been performed, and the geographic distribution of this order in Asia remains largely unknown. We collected E. incrassata, E. pisiformis, E. flammicorona, and E. lactiflua from forests in Japan, thus representing their first description in Asia. Collected sporocarps were examined microscopically to observe details of hyphal structures, particularly in zygosporangia and gametangia. In addition, we collected Japanese Sphaerocreas pubescens, recently reported to be related to Endogone-like mycobionts of liverworts, and described its morphology. Species were also analyzed phylogenetically based on large-subunit nuclear ribosomal RNA gene sequences. The phylogenetic relationships of the four Endogone species were supported by their zygosporangial morphogenesis: group A, comprising E. incrassata and E. pisiformis, formed homogametic zygosporangia with pale-colored sporangiothecia, whereas species in group B, E. flammicorona and E. lactiflua, formed heterogametic zygosporangia with orange-colored sporangiothecia. Sphaerocreas pubescens was phylogenetically close to Densospora solicarpa, which is an uncertain zygomycotan ectomycorrhizal fungus; however, the relationship between the “Sphaerocreas/Densospora” clade and Endogone was unclear.
Yousuke Degawa - One of the best experts on this subject based on the ideXlab platform.
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Endogone corticioides sp. nov. from subalpine conifer forests in Japan and China, and its multi-locus phylogeny
Mycoscience, 2017Co-Authors: Kohei Yamamoto, Yousuke Degawa, Masaki Fukuda, Yusuke Takashima, Akiyoshi YamadaAbstract:Abstract Endogone corticioides sp. nov. was described from subalpine conifer forests in Japan and China. This species is similar to E. pisiformis in its yellowish sporocarps and zygosporangia on the equal empty gametangia. Endogone corticioides was clearly distinguished from E. pisiformis based on its resupinate sporocarp, the presence of hyphal peg-like structures on the peridium, and abundant thick-walled hyphae in the gleba. Phylogenetic analysis of the small and large subunit nuclear ribosomal RNA and the elongation factor-1α genes suggested that E. corticioides is closely related to E. pisiformis. Limited vegetative growth from the surface-sterilized sporocarps on agar media was shown.
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First detection of Endogone ectomycorrhizas in natural oak forests
Mycorrhiza, 2016Co-Authors: Kohei Yamamoto, Naoki Endo, Yousuke Degawa, Masaki Fukuda, Akiyoshi YamadaAbstract:The order Endogonales in Mucoromycotina, an early divergent lineage of fungi, includes ectomycorrhizal (EM) fungi. This order is therefore considered a key taxon for elucidation of the evolution of EM associations. Recent studies have revealed high diversity of EM lineages of Basidiomycota and Ascomycota; however, EM associations of Endogonales and its relatives remain largely unknown. In this study, EM root tips with a unique fungal sheath, with aseptate and highly branched hyphae of variable widths, were identified in Quercus acutissima and Quercus crispula forests in the temperate zone of Japan. The mycobionts were confirmed as Endogone sp., which were placed as a sister clade of Endogone pisiformis, based on phylogenetic analyses of the small and large subunits of the nuclear ribosomal RNA and elongation factor-1α genes. This is the first report of EM of Endogone in natural forests of the Northern Hemisphere and the first finding on Quercus.
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Morphology and phylogeny of four Endogone species and Sphaerocreas pubescens collected in Japan
Mycological Progress, 2015Co-Authors: Kohei Yamamoto, Yousuke Degawa, Masaki Fukuda, Dai Hirose, Akiyoshi YamadaAbstract:The order Endogonales within Mucoromycotina includes several ectomycorrhizal species and endophytes of lower land plants. As such, this order is a key taxon for investigation of the evolutionary process of plant–fungal symbioses. However, no taxonomic study of Endogonales based on morphological and phylogenetic data has been performed, and the geographic distribution of this order in Asia remains largely unknown. We collected E. incrassata, E. pisiformis, E. flammicorona, and E. lactiflua from forests in Japan, thus representing their first description in Asia. Collected sporocarps were examined microscopically to observe details of hyphal structures, particularly in zygosporangia and gametangia. In addition, we collected Japanese Sphaerocreas pubescens, recently reported to be related to Endogone-like mycobionts of liverworts, and described its morphology. Species were also analyzed phylogenetically based on large-subunit nuclear ribosomal RNA gene sequences. The phylogenetic relationships of the four Endogone species were supported by their zygosporangial morphogenesis: group A, comprising E. incrassata and E. pisiformis, formed homogametic zygosporangia with pale-colored sporangiothecia, whereas species in group B, E. flammicorona and E. lactiflua, formed heterogametic zygosporangia with orange-colored sporangiothecia. Sphaerocreas pubescens was phylogenetically close to Densospora solicarpa, which is an uncertain zygomycotan ectomycorrhizal fungus; however, the relationship between the “Sphaerocreas/Densospora” clade and Endogone was unclear.
Naoki Endo - One of the best experts on this subject based on the ideXlab platform.
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First detection of Endogone ectomycorrhizas in natural oak forests
Mycorrhiza, 2016Co-Authors: Kohei Yamamoto, Naoki Endo, Yousuke Degawa, Masaki Fukuda, Akiyoshi YamadaAbstract:The order Endogonales in Mucoromycotina, an early divergent lineage of fungi, includes ectomycorrhizal (EM) fungi. This order is therefore considered a key taxon for elucidation of the evolution of EM associations. Recent studies have revealed high diversity of EM lineages of Basidiomycota and Ascomycota; however, EM associations of Endogonales and its relatives remain largely unknown. In this study, EM root tips with a unique fungal sheath, with aseptate and highly branched hyphae of variable widths, were identified in Quercus acutissima and Quercus crispula forests in the temperate zone of Japan. The mycobionts were confirmed as Endogone sp., which were placed as a sister clade of Endogone pisiformis, based on phylogenetic analyses of the small and large subunits of the nuclear ribosomal RNA and elongation factor-1α genes. This is the first report of EM of Endogone in natural forests of the Northern Hemisphere and the first finding on Quercus.