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International Journal of Medicinal Mushrooms

Publicou 12 edições por ano

ISSN Imprimir: 1521-9437

ISSN On-line: 1940-4344

The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) IF: 1.2 To calculate the five year Impact Factor, citations are counted in 2017 to the previous five years and divided by the source items published in the previous five years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) 5-Year IF: 1.4 The Immediacy Index is the average number of times an article is cited in the year it is published. The journal Immediacy Index indicates how quickly articles in a journal are cited. Immediacy Index: 0.3 The Eigenfactor score, developed by Jevin West and Carl Bergstrom at the University of Washington, is a rating of the total importance of a scientific journal. Journals are rated according to the number of incoming citations, with citations from highly ranked journals weighted to make a larger contribution to the eigenfactor than those from poorly ranked journals. Eigenfactor: 0.00066 The Journal Citation Indicator (JCI) is a single measurement of the field-normalized citation impact of journals in the Web of Science Core Collection across disciplines. The key words here are that the metric is normalized and cross-disciplinary. JCI: 0.34 SJR: 0.274 SNIP: 0.41 CiteScore™:: 2.8 H-Index: 37

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Deep Sequencing, Nested PCR, and Denaturing Gradient Gel Electrophoresis Reveal a Wider Distribution of Chinese Caterpillar Mushroom, Ophiocordyceps sinensis (Ascomycetes), in Native Soil Types

Volume 23, Edição 4, 2021, pp. 93-104
DOI: 10.1615/IntJMedMushrooms.2021037759
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RESUMO

Ophiocordyceps sinensis appears as stroma emerging from underground sclerotium enclosed by the skeleton of Thitarodes moth larvae. However, the actual distribution of the fungus in soil still remains unclarified. In this study, 40 soil samples were used for detection of O. sinensis to confirm its distribution in native habitats using denaturing gradient gel electrophoresis, nested internal transcribed spacer (ITS) PCR, and 454 pyrosequencing methods. The soil samples included six types: Os, where both stromata and host moth larvae were found; NL, representing no signs of stromata, but where moth larvae were found; NOs, where neither stroma nor moth larvae were found; BS, with bare soil without the presence of stroma of O. sinensis or moth larvae; AF, from soil surrounding the stroma; and MP, soil particles firmly wrapping the sclerotium of O. sinensis. Of 40 samples tested, 36 showed positive detection of O. sinensis by at least one of the three detection methods, with positive detection in all six sample types at all five sites. The results showed that traces of O. sinensis can be detected in locations with no macroscopically visible evidence of the fungus or its host and at least 100 m away from such locations.

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