Mycoscience
Online ISSN : 1618-2545
Print ISSN : 1340-3540
Volume 53, Issue 5
Displaying 1-10 of 10 articles from this issue
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  • Yu-Cheng Dai, Hai-Jiao Li
    2012 Volume 53 Issue 5 Pages 337-346
    Published: 2012
    Released on J-STAGE: March 31, 2023
    JOURNAL FREE ACCESS

    Type specimens or original specimens of 15 taxa in Coltricia and Coltriciella described by Corner from Southeast Asia were examined. Among these taxa, ten names were published invalidly because no type was designated in the original publication. The following two names are accepted in the original genus: Coltricia hirtipes and C. strigosipes. Two new species, Inonotus parvulus and I. magnus, are described. Validating descriptions are given for the following five species: Coltricia albidipes, C. arenicola, C. kinabaluensis, C. progressus, and Coltriciella corticicola. The original materials of C. grandis, C. gracilipes, and C. hirtipes var. pleuropodalis are, respectively, identical to Coltricia crassa, C. pyrophila, and C. minor. In addition, C. subfastosa seems to be Pyrrhoderma adamantinum, although no basidiospores were found in the type specimen. Illustrated descriptions of eight species are given.

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  • Nguyen-Duc Hoang Pham, Akira Suzuki, Nguyen-Duc Hoang Pham, Akiyoshi Y ...
    2012 Volume 53 Issue 5 Pages 347-353
    Published: 2012
    Released on J-STAGE: March 31, 2023
    JOURNAL FREE ACCESS

    Phlebopus (Ph.) spongiosus was recently described from several pomelo orchards (Citrus maxima) in southern Vietnam. This fungus was suspected to associate with pomelo plants as an ectomycorrhiza, although members of the genus Phlebopus have previously been presumed saprotrophic. To clarify this association, pomelo roots collected from the orchard (in situ roots), and those cultured with Ph. spongiosus (in vitro roots) in test tubes for 12 wk, were examined for ectomycorrhizal colonization. Both in vitro and in situ roots were analyzed for colonization using fungal LSU nuclear ribosomal DNA sequencing. The in situ roots exhibited the anatomical features of ectomycorrhizae: a thick fungal mantle, Hartig net, and extramatrical hyphae. The Hartig net, however, was very rare and showed discontinuous development. The in vitro association between Ph. spongiosus and C. maxima showed ectomycorrhiza-like structures, i.e., mantles and rhizomorphs in the plant roots, but no Hartig net development in the roots. Continuous hyphal penetration was restricted to the exodermis in both in situ and in vitro roots. Although the association between Ph. spongiosus and C. maxima could be considered ectomycorrhizal, its anatomy matches the unique feature known as sheathing mycorrhiza.

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  • Norifumi Shirasaka, Masao Naitou, Kazuki Okamura, Yasuhisa Fukuta, Tak ...
    2012 Volume 53 Issue 5 Pages 354-364
    Published: 2012
    Released on J-STAGE: March 31, 2023
    JOURNAL FREE ACCESS

    An enzyme from Aspergillus oryzae KSK-3, isolated from commercial rice-koji for miso brewing, showed fibrinolytic activity in liquefied rice culture and was analyzed. A culture filtrate of A. oryzae KSK-3 was concentrated by ultrafiltration and subsequently purified to electrophoretic homogeneity by ammonium sulfate precipitation, ion-exchange chromatography, and gel filtration. The molecular weight of the purified enzyme was estimated to be approximately 30 kDa by SDS-PAGE and high-performance liquid chromatography–size exclusion chromatography. Its maximum fibrinolytic activity was observed at pH 6 and 50°C. The purified protease was stable between pH 4 and 9, at temperatures of up to 50°C. The activity of the enzyme was highest with S-2238 and was considerably inhibited by phenylmethylsufonyl fluoride and pefabloc SC. These results indicate that the enzyme is a serine protease. Moreover, the enzyme is edible and exhibited very high productivity (2,960 U urokinase per milliliter of culture broth). Taken together, the findings of this study indicate that the A. oryzae KSK-3 enzyme may be used as a natural agent for oral fibrinolytic therapy and nutraceutical applications.

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  • Bao-Kai Cui, Chang-Lin Zhao
    2012 Volume 53 Issue 5 Pages 365-372
    Published: 2012
    Released on J-STAGE: March 31, 2023
    JOURNAL FREE ACCESS

    A new polypore, Perenniporia tibetica, collected in Xizang (Tibet), southwestern China, is described and illustrated on the basis of morphological and molecular characters. Perenniporia tibetica is characterized by an annual growth habit, resupinate basidiocarps with a creambuff to pinkish-buff pore surface and white to cream-colored rhizomorphs, a dimitic hyphal system with slightly dextrinoid and distinctly cyanophilous skeletal hyphae, and basidiospores that are ellipsoid, truncate or not, strongly dextrinoid, and cyanophilous, 6.7–8.7 × 5.3–6.8 μm. Its preliminary phylogenetic relationships are inferred based on sequence data from the ribosomal ITS and LSU regions, both suggesting that P. tibetica forms a distinct lineage in the genus Perenniporia.

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  • Huzefa A. Raja, Carol A. Shearer, Huzefa A. Raja, Jacques Fournier, An ...
    2012 Volume 53 Issue 5 Pages 373-380
    Published: 2012
    Released on J-STAGE: March 31, 2023
    JOURNAL FREE ACCESS
    Supplementary material

    Coniochaeta gigantospora collected from submerged wood in a freshwater habitat in France is described and illustrated as a new species in the family Coniochaetaceae (Coniochaetales, Ascomycota). This placement is based on morphology and phylogenetic analyses of partial nuclear ribosomal 28S large subunit and complete internal transcribed spacer DNA sequence data. Coniochaeta gigantospora is distinguished from other Coniochaeta species in possessing unusually large, ellipsoid, nearly equilateral, olivaceous to olivaceous-brown ascospores.

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  • Hiroki Sato, Sayaka Ban, Hayato Masuya, Tsuyoshi Hosoya
    2012 Volume 53 Issue 5 Pages 402-408
    Published: 2012
    Released on J-STAGE: March 31, 2023
    JOURNAL FREE ACCESS

    Twenty taxa of Cordyceps s. l. (belonging to three genera in the latest taxonomic system) from Cicadidae had been described by Kobayasi and Shimizu. Among them, 13 holotype specimens of Cordyceps were rediscovered from preserved specimens partially without ordering, and their registration numbers (TNS-F-number) were given: viz. (1) Elaphocordyceps inegoensis TNS-F-230289, (2) Elaphocordyceps paradoxa TNS-F-230313, (3) Elaphocordyceps toriharamontana TNS-F-230288, (4) Ophiocordyceps heteropoda TNS-F-230294, (5) Ophiocordyceps longissima TNS-F-230285, (6) Ophiocordyceps prolifica f. terminalis TNS-F-230295, (7)Ophiocordyceps pseudolongissimaTNSF- 197983, (8) Ophiocordyceps takaoensis TNS-F-3026, (9) Cordyceps kanzashiana TNS-F-198015, (10) Cordyceps kobayasii Koval’ (≡C. sinclairii Kobayasi, not C. sinclairii Berk.) TNS-F-212384, (11) Cordyceps minuta TNS-F- 11933, (12) Cordyceps ramosopulvinata TNS-F-197979, and (13) Cordyceps ryogamimontana TNS-F-230292. Two specimens were selected as lectotype: viz. (14) Ophiocordyceps prolifica TNS-F-230300 and (15) Ophiocordyceps yakusimensis TNS-F-230287. A paratype specimen of (16) Cordyceps pleuricapitata TNS-F-197965, and an authentic specimen of (17) Cordyceps imagamiana TNS-F- 197966, were also rediscovered.

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