Dataset Information

Campanophyllummicrosporum (Agaricales, Agaricomycetes), Caloceramultiramosa, and Dacrymycesnaematelioides (Dacrymycetales, Dacrymycetes), three new species from Yunnan Province, southwestern China.

ABSTRACT: Three new species belonging to Basidiomycota from southwestern China are described based on morphological and molecular data. Campanophyllummicrosporum is morphologically characterized by dorsally pseudostipitate, pale orange to brownish orange pileus, excentric to lateral pseudostipe, crowded lamellae, cylindrical-ellipsoid basidiospores 3.0-4.2 × 1.7-2.2 µm, narrowly clavate to clavate basidia 14.5-23.0 × 3.0-4.2 µm, and cylindrical to clavate cheilocystidia 22.0-55.0 × 5.0-10.8 µm. Caloceramultiramosa is morphologically characterized by stipitate, yellowish to orange, dendroid, and dichotomously branched basidiomata, cylindrical to clavate basidia 36.5-52.5 × 3.8-6.1 µm, navicular or reniform, 1-5-septate mature basidiospores 10.4-16.7 × 5.2-7.4 µm. Dacrymycesnaematelioides is morphologically characterized by stipitate and cerebriform, orange to light brown basidiomata, cylindrical to clavate, smooth or roughened basidia 38.5-79.5 × 6.5-10.6 µm, broadly and elliptic-fusiform, 7-septate mature basidiospores 18.5-28.6 × 8.9-13.8 µm. These three new species are supported by the phylogenetic analyses using maximum likelihood (ML) and Bayesian inference (BI) analyses with combined nuclear ribosomal DNA (rDNA) internal transcribed spacer (ITS) and large ribosomal subunit (LSU) sequences. Full descriptions and photographs of these new species are provided.

SUBMITTER: Ma YH

PROVIDER: S-EPMC11336384 | biostudies-literature | 2024

REPOSITORIES: biostudies-literature

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Campanophyllummicrosporum (Agaricales, Agaricomycetes), Caloceramultiramosa, and Dacrymycesnaematelioides (Dacrymycetales, Dacrymycetes), three new species from Yunnan Province, southwestern China.

Ma Yuan-Hao YH Liu Ping P Chai Hong-Mei HM Zeng Min M Guo Yi-Yun YY Chen Wei-Min WM Zhao Yong-Chang YC

MycoKeys 20240813

Three new species belonging to Basidiomycota from southwestern China are described based on morphological and molecular data. Campanophyllummicrosporum is morphologically characterized by dorsally pseudostipitate, pale orange to brownish orange pileus, excentric to lateral pseudostipe, crowded lamellae, cylindrical-ellipsoid basidiospores 3.0-4.2 × 1.7-2.2 µm, narrowly clavate to clavate basidia 14.5-23.0 × 3.0-4.2 µm, and cylindrical to clavate cheilocystidia 22.0-55.0 × 5.0-10.8 µm. ...[more]

PMID: 39169991

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Project description:Yunnan Province, China is thought to be the original source of biovar Orientalis of Yersinia pestis, the causative agent of the third plague pandemic that has spread globally since the end of the 19th century. Although encompassing a large area of natural plague foci, Y. pestis strains have rarely been found in live rodents during surveillance in Yunnan, and most isolates are from rodent corpses and their fleas. In 2017, 10 Y. pestis strains were isolated from seven live rodents and three fleas in Heqing County (HQ) of Yunnan. These strains were supposed to have low virulence to local rodents Eothenomys miletus and Apodemus chevrieri because the rodents were healthy and no dead animals were found in surrounding areas, as had occurred in previous epizootic disease. We performed microscopic and biochemical examinations of the isolates,and compared their whole-genome sequences and transcriptome with those of 10 high virulence Y. pestis strains that were isolated from the adjacent city (Lijiang). We analyzed the phenotypic, genomic, and transcriptomic characteristics of live rodent isolates. The isolates formed a previously undefined monophyletic branch of Y. pestis that was named 1.IN5. Six SNPs, two indels, and one copy number variation were detected between live rodent isolates and the high virulence neighbors. No obvious functional consequence of these variations was found according to the known annotation information. Among the genes that were differentially expressed between the live rodent isolates and their high virulence neighbors, we detected five iron transfer-related genes that were significantly up-regulated in live rodent isolates compared with high virulence isolates (|log2 (FC) | >1, p.adjust <0.05), indicating these genes may be related to the low-virulence phenotype. The novel genotype of Y. pestis reported here provides further insights into the evolution and spread of plague as well as clues that may help to decipher the virulence mechanism of this notorious pathogen.

Dataset Information

Campanophyllummicrosporum (Agaricales, Agaricomycetes), Caloceramultiramosa, and Dacrymycesnaematelioides (Dacrymycetales, Dacrymycetes), three new species from Yunnan Province, southwestern China.

Publications

<i>Campanophyllummicrosporum</i> (Agaricales, Agaricomycetes), <i>Caloceramultiramosa</i>, and <i>Dacrymycesnaematelioides</i> (Dacrymycetales, Dacrymycetes), three new species from Yunnan Province, southwestern China.

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Dataset Information

Campanophyllummicrosporum (Agaricales, Agaricomycetes), Caloceramultiramosa, and Dacrymycesnaematelioides (Dacrymycetales, Dacrymycetes), three new species from Yunnan Province, southwestern China.

Publications

﻿&lt;i&gt;Campanophyllummicrosporum&lt;/i&gt; (Agaricales, Agaricomycetes), &lt;i&gt;Caloceramultiramosa&lt;/i&gt;, and &lt;i&gt;Dacrymycesnaematelioides&lt;/i&gt; (Dacrymycetales, Dacrymycetes), three new species from Yunnan Province, southwestern China.

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OmicsDI is part of the ELIXIR infrastructure

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<i>Campanophyllummicrosporum</i> (Agaricales, Agaricomycetes), <i>Caloceramultiramosa</i>, and <i>Dacrymycesnaematelioides</i> (Dacrymycetales, Dacrymycetes), three new species from Yunnan Province, southwestern China.