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International Journal of Medicinal Mushrooms

Publication de 12  numéros par an

ISSN Imprimer: 1521-9437

ISSN En ligne: 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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Effect of Environmental Conditions on Synnema Formation and Nucleoside Production in Cicada Flower, Isaria cicadae (Ascomycetes)

Volume 21, Numéro 1, 2019, pp. 59-69
DOI: 10.1615/IntJMedMushrooms.2018029506
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RÉSUMÉ

Isaria cicadae (syn. Cordyceps cicadae) is one of the most valued edible and medicinal fungi and has been used in Asia as a substitute for Ophiocordyceps sinensis. Wild I. cicadae is limited and seasonal, and its cultivation is deserved. In this investigation we studied synnema formation by and nucleoside production in cicada flower under different environmental conditions. I. cicadae produced an asexual structure and mitospores instead of meiotic ascospores; this indicates that the term "synnema" is more suitable than "fruiting body" for this species. The optimal temperature was 25°C for growth of I. cicadae mycelia on potato dextrose agar plates but was 20°C for synnema formation on wheat medium. Synnemata can grow well under blue, green, and white light, and the dry weight of samples grown under these 3 light wavelengths is not significantly different. However, neither primordia nor synnemata formed under red light. Blue light promotes conidia production and white light promotes N6-(2-hydroxyethyl)-adenosine (HEA) production. Weak white light at 50 and 150 lux was more suitable for synnema production than strong-intensity light at 850 lux. The growth curve showed that HEA content has the same trend as synnema production over the entire cultivation period. The optimal harvesting time for I. cicadae cultivated on wheat medium is 35 days after inoculation. HEA content in the synnemata cultivated on wheat medium under the optimal conditions was significantly higher than that of the wild species and of synnemata cultivated on pupae, suggesting that synnemata cultivated on wheat medium may have potential as a substitute for wild resources. The results presented herein provide a new strategy for producing superior-quality synnemata of I. cicadae and further elucidate the effects of environmental conditions on metabolite accumulation in fungi.

CITÉ PAR
  1. Nxumalo Winston, Elateeq Ahmed Abdelfattah, Sun Yanfang, Can Cordyceps cicadae be used as an alternative to Cordyceps militaris and Cordyceps sinensis? – A review, Journal of Ethnopharmacology, 257, 2020. Crossref

  2. Liu Qing, Xu Yanyan, Zhang Xiaoling, Li Kuan, Li Xiao, Wang Fen, Xu Fangxu, Dong Caihong, Infection Process and Genome Assembly Provide Insights into the Pathogenic Mechanism of Destructive Mycoparasite Calcarisporium cordycipiticola with Host Specificity, Journal of Fungi, 7, 11, 2021. Crossref

  3. Chunyu Yan-Jie, Lu Zhen-Ming, Luo Zhi-Shan, Li Shuo-Shuo, Li Hui, Geng Yan, Xu Hong-Yu, Xu Zheng-Hong, Shi Jin-Song, Promotion of Metabolite Synthesis in Isaria cicadae, a Dominant Species in the Cicada Flower Microbiota, by Cicada Pupae, Journal of Agricultural and Food Chemistry, 67, 31, 2019. Crossref

  4. Huang Ailin, Wu Tao, Wu Xiuyun, Zhang Biao, Shen Yuanyuan, Wang Suying, Song Wenjun, Ruan Haihua, Analysis of Internal and External Microorganism Community of Wild Cicada Flowers and Identification of the Predominant Cordyceps cicadae Fungus, Frontiers in Microbiology, 12, 2021. Crossref

  5. Ye Dou, Du Fang, Hu Qingxiu, Zou Yajie, Bai Xue, Transcriptome Analysis Reveals Candidate Genes Involved in Light-Induced Primordium Differentiation in Pleurotus eryngii, International Journal of Molecular Sciences, 23, 1, 2021. Crossref

  6. Li Dong, Gai Yunpeng, Meng Junlong, Liu Jingyu, Cai Weiming, Lin Fu-Cheng, Wang Hongkai, GPI-Anchored Protein Homolog IcFBR1 Functions Directly in Morphological Development of Isaria cicadae, Journal of Fungi, 8, 11, 2022. Crossref

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