Mycoscience
Online ISSN : 1618-2545
Print ISSN : 1340-3540
54 巻, 6 号
選択された号の論文の10件中1~10を表示しています
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  • Andrew W. Wilson, Kentaro Hosaka, Brian A. Perry, Gregory M. Mueller
    2013 年 54 巻 6 号 p. 406-419
    発行日: 2013年
    公開日: 2023/03/07
    ジャーナル オープンアクセス

    Species of Laccaria are described from the eastern Himalayas, in the Xizang Autonomous Region of China, more commonly known as Tibet. Specimens were collected during several expeditions over a 12-year time span. Nuclear ribosomal internally transcribed spacer regions 1 and 2 including and 5.8S (ITS) as well as the 5' end of the large subunit (28S) sequence data were generated for 22 specimens from Tibet and analyzed in a dataset of 115 Laccaria samples. The results documented seven species from this region, five of which represent currently undescribed species. The taxonomy of Tibetan Laccaria is discussed, five new species are proposed, and an artificial key that includes extralimital species from Asia is provided.

  • Jun Ren, Chun-Yu Jie, Qing-Xin Zhou, Xing-Hong Li, Kevin D. Hyde, Yu-L ...
    2013 年 54 巻 6 号 p. 420-425
    発行日: 2013年
    公開日: 2023/03/07
    ジャーナル オープンアクセス

    Two species of Scolecobasidium were isolated from soil in Hainan and Hebei Provinces, China. The two taxa develop broadly ellipsoid conidia and ellipsoidal to oblong conidia, respectively. Their taxonomic placement in Scolecobasidium was confirmed by morphological similarity and phylogenetic analysis of the RNA polymerase II subunit b (RPB2) sequence data. The two fungi, which are morphologically distinct to previously described species, and occupy unique positions in the phylogenetic tree, are thus introduced as the new species Scolecobasidium terricola and S. ellipsoideum. They are described and illustrated and compared with similar species in the genus.

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  • Guido Incerti, Manuela Capodilupo, Mauro Senatore, Pasquale Termolino, ...
    2013 年 54 巻 6 号 p. 449-457
    発行日: 2013年
    公開日: 2023/03/07
    ジャーナル オープンアクセス

    The mechanistic bases of saprotrophic fungal dynamics in soil are not fully clarified. By assessing hyphal density and radial expansion of Aspergillus niger on extracts 45 plant litter types (15 species at 3 decomposition stages), encompassing a broad range of organic quality, we investigated how changes in litter biochemistry affected fungal growth. Plant litter were characterized by classic proximate chemical analyses (total C and N, labile C, cellulose and lignin content, C/N and lignin/N ratios) and, at molecular level, by solid-state 13C-CPMAS NMR. The growth of A. niger decreased during the decomposition process over all organic matter types, consistently with the well-known disappearance of this species during the early successional stages. The litter suitability as a substrate to A. niger progressively decreased during decomposition, both considering proximate parameters and C types corresponding to spectral regions, with the latter being also invariably predictive of fungal growth over the 45 substrates. A. niger growth was positively associated with the content of labile C, and with di-O-alkyl C and O-alkyl C spectral regions, but negatively with lignin content and with methoxyl C region. Our results suggest that organic matter quality may control saprotrophic fungal dynamics, at least for the tested species.

  • Haruki Takahashi, Yuichi Taneyama, Yousuke Degawa
    2013 年 54 巻 6 号 p. 458-468
    発行日: 2013年
    公開日: 2023/03/07
    ジャーナル オープンアクセス

    Four new species of Boletus are fully described and illustrated from central Honshu, Japan: (1) B. panniformis (Section Calopodes) produces a typically felted and scabrous pileus, bitter flesh, a finely reticulate, red stipe, and occurs in subalpine, coniferous forests; (2) Bventricosus (Section Appendiculati) forms a usually ventricose or subbulbous stipe, yellow to greyish orange, extremely short tubes, often pluriseptate, broadly clavate to doliform caulocystidia, and occurs in lowland, mixed forests; (3) B. cepaeodoratus (Section Appendiculati) possesses a pinkish red pileus, a usually finely reticulate stipe, relatively short tubes, and occurs in lowland, mixed forest; (4) B. viscidipellis (Section Luridi) yields a hairy, viscid pileus, intensely cyanescent flesh, and occurs in lowland, mixed forests.

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