{"title":"Russula rubrosquamosa (Russulaceae, Russulales), a new species from southwestern China","authors":"Shuai Jiang, Jing Ma, Yun-Xiao Han, Rou Xue, Lin-Jie Su, Tai-Jie Yu, Li-Ping Tang","doi":"10.47371/mycosci.2024.02.009","DOIUrl":"https://doi.org/10.47371/mycosci.2024.02.009","url":null,"abstract":"</p><p><i>Russula rubrosquamosa</i> (<i>Russulaceae, Russlales</i>) is described as a novel species from Yunnan Province, southwestern China. It is morphologically recognised by a small basidiocarp with orange-yellow to orange-red scales on the pileus and stipe, white lamellae, orange-red to bright red basal mycelia, subglobose to broadly ellipsoid basidiospores with dense warts and short or long ridges. Phylogenetically analyses of DNA sequences from part of the 28S gene combined with the nuclear rDNA internal transcribed spacer (ITS) region also confirm that <i>R. rubrosquamosa</i> forms an independent lineage within <i>Russula</i> subgenus <i>Heterophyllidia</i> section <i>Ingratae</i>. A comprehensive description, color photographs of fresh basidiomata, line-drawings of microstructures and comparisons with morphologically similar species are provided in this paper.</p>\u0000<p></p>","PeriodicalId":18780,"journal":{"name":"Mycoscience","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2024-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141190137","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
MycosciencePub Date : 2024-05-29DOI: 10.47371/mycosci.2024.03.002
Norio Takeshita, Yusuke Takashima, Yousuke Degawa
{"title":"Live imaging analysis of sexual and asexual reproduction, zygospore and sporangiospore formation, in Gilbertella persicaria","authors":"Norio Takeshita, Yusuke Takashima, Yousuke Degawa","doi":"10.47371/mycosci.2024.03.002","DOIUrl":"https://doi.org/10.47371/mycosci.2024.03.002","url":null,"abstract":"</p><p>Most <i>Mucoromycota</i> fungi form zygospores as sexual reproductive structures. When two colonies of compatible strains meet, zygospores are formed in the area where the colonies meet. The structure and development of zygospores have been studied for a long time by light microscopy and electron microscopy. This study is the first time-lapse report on the dynamic movements of sexual and asexual reproductive processes by live imaging in <i>Gilbertella persicaria</i> (<i>Choanephoraceae, Mucorales</i>). Our live imaging analysis indicated the formation of zygospores begin immediately after two aerial hyphae contact whether at the tip or middle of the hyphae. The early-stage zygospores elongated from the contact site with a rate of 1.2–1.7 μm/s and reach < 200 μm in 2–3 h. Following maturation of zygospores, from progametangia to gametangia and maturation stage, took a few hours, in total 5 to 6 h after the first contact of two hyphae. When a zygospore was formed near the tip of hypha in contact with the partner hypha, the hyphal growth ceased. When zygospore was formed behind the tip of the hypha, the hyphal growth continued without slowing down. This study provides quantitative spatio-temporal information on the dynamics of zygospore formation.</p>\u0000<p></p>","PeriodicalId":18780,"journal":{"name":"Mycoscience","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2024-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141172366","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
MycosciencePub Date : 2024-05-20DOI: 10.47371/mycosci.2024.02.002
Kosuke Nagamune, Kentaro Hosaka, Shiro Kigawa, Ryo Sugawara, K. Sotome, A. Nakagiri, Naoki Endo
{"title":"Two new Mycena section Calodontes species: One newly discovered and the other new to Japan","authors":"Kosuke Nagamune, Kentaro Hosaka, Shiro Kigawa, Ryo Sugawara, K. Sotome, A. Nakagiri, Naoki Endo","doi":"10.47371/mycosci.2024.02.002","DOIUrl":"https://doi.org/10.47371/mycosci.2024.02.002","url":null,"abstract":"","PeriodicalId":18780,"journal":{"name":"Mycoscience","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2024-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141121228","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
MycosciencePub Date : 2024-05-13DOI: 10.47371/mycosci.2024.03.001
Renate Heinzelmann, Heidy Baggenstos, Andreas Rudolf
{"title":"Is the bioluminescence in many Mycena species overlooked? – A case study from M. crocata in Switzerland","authors":"Renate Heinzelmann, Heidy Baggenstos, Andreas Rudolf","doi":"10.47371/mycosci.2024.03.001","DOIUrl":"https://doi.org/10.47371/mycosci.2024.03.001","url":null,"abstract":"</p><p>Fungal bioluminescence is mystifying humans since ancient times. Nevertheless, the biosynthetic pathway behind this phenomenon was only very recently resolved. Fungal bioluminescence occurs in five distantly related linages (<i>Omphalotaceae</i> lineage, <i>Armillaria</i> lineage, mycenoid lineage, Lucentipes lineage and <i>Eoscyphella</i> lineage) of the basidiomycete order <i>Agaricales</i>. Recent research suggests fungal bioluminescence has emerged 160 million years ago in the most common ancestor of the mycenoid and marasmioid clade and is maintained since then. Surprisingly, in the mycenoid linage, primarily represented by the genus <i>Mycena</i>, most species are considered non-luminescent, implying that many mycenoid species have lost their bioluminescent ability. Here, we report evidence for bioluminescence in <i>Mycena crocata</i> and show that the genome of this species is fully equipped with the genes associated with fungal bioluminescence. <i>Mycena crocata</i> is a long-known species frequently reported from Europe and Japan, which was considered non-luminescent until now. The low light emission intensity and the restriction of the luminescence to the vegetative mycelium and the base of the basidiome may be reasons why bioluminescence was not perceived earlier. We assume there might be other known <i>Mycena</i> species whose luminescent properties are not yet discovered, and that therefore the number of bioluminescent <i>Mycena</i> species is currently underestimated. </p>\u0000<p></p>","PeriodicalId":18780,"journal":{"name":"Mycoscience","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2024-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140927241","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
MycosciencePub Date : 2024-05-02DOI: 10.47371/mycosci.2024.02.008
Yun-Li Feng, Da-Feng Sun, Yuan Fang, Rong Hua, Shao-Xiong Liu, Ming Ma, Xiang Guo
{"title":"Cystoderma yongpingense sp. nov. (Squamanitaceae, Agaricales) a new species from southwestern China","authors":"Yun-Li Feng, Da-Feng Sun, Yuan Fang, Rong Hua, Shao-Xiong Liu, Ming Ma, Xiang Guo","doi":"10.47371/mycosci.2024.02.008","DOIUrl":"https://doi.org/10.47371/mycosci.2024.02.008","url":null,"abstract":"</p><p>The present study introduces a novel fungus, <i>Cystoderma yongpingense</i>, which was identified in the southwestern region of China. The new species is characterized by a pileus that ranges in color from light orange-red to orange-red; the pileus has a wrinkled surface and is accompanied by a persistent annulus that is membranous and floccose-scaly. Above the annulus, the color transitions from white to yellowish brown. This proposal is substantiated through analyses encompassing both morphological characteristics and phylogenetic relationships. The phylogenetic position of the newly discovered species has been further corroborated through comprehensive maximum likelihood and Bayesian sequence analyses of the ITS + nrLSU DNA regions. Additionally, the technical description of <i>C. yongpingense</i> is enhanced by detailed illustrations and comparative studies with species that are closely related. </p>\u0000<p></p>","PeriodicalId":18780,"journal":{"name":"Mycoscience","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2024-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140826633","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
MycosciencePub Date : 2024-05-02DOI: 10.47371/mycosci.2024.02.003
Kazunari TAKAHASHI
{"title":"Myxomycetes on the bark of living Metasequoia glyptostroboides trees and their distribution along a rural–urban gradient","authors":"Kazunari TAKAHASHI","doi":"10.47371/mycosci.2024.02.003","DOIUrl":"https://doi.org/10.47371/mycosci.2024.02.003","url":null,"abstract":"</p><p>Myxomycete distribution along urban–rural gradients remains to be studied in detail. The ancient plant <i>Metasequoia glyptostroboides</i> has been mainly planted in urban parks and green areas in Japan, and it provides new habitats for myxomycetes on its growing tree bark. Here, we examined myxomycetes on bark along urbanization gradients, estimated by land-use coverage types. Survey sites were selected at 20 locations in western Japan, where the bark was sampled from 10 trees at each site. The bark samples were cultured in 10 Petri dishes per tree using the moist chamber technique. Myxomycete fruiting colonies occurred in 71% of cultures, and 44 species were identified across surveys. <i>Diderma chondrioderma</i> occurred at all sites, with the next most abundant species being <i>Licea variabilis</i> and <i>Perichaena vermicularis</i>. Twenty-two myxomycete communities ordinated using non-metric multidimensional scaling showed a significant negative correlation with building coverage and bark pH, increasing along the first axis. Relative abundances of <i>Physarum crateriforme</i> and <i>Licea biforis</i> positively correlated with increasing building coverage. Overall, urbanization causes alternation of the myxomycete community structure without diversity loss, and intermediate urbanization diversified species diversity on <i>M. glyptostroboides</i> tree bark.</p>\u0000<p></p>","PeriodicalId":18780,"journal":{"name":"Mycoscience","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2024-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140826815","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The co-dispersal strategy of Endocarpon (Verrucariaceae) shapes an unusual lichen population structure","authors":"ChunYan Yang, QiMing Zhou, Yue Shen, LuShan Liu, YunShu Cao, HuiMin Tian, ShuNan Cao, ChuanPeng Liu","doi":"10.47371/mycosci.2024.02.007","DOIUrl":"https://doi.org/10.47371/mycosci.2024.02.007","url":null,"abstract":"</p><p>The reproduction and dispersal strategies of lichens play a major role in shaping their population structure and photobiont diversity. Sexual reproduction, which is common, leads to high lichen genetic diversity and low photobiont selectivity. However, the lichen genus <i>Endocarpon</i> adopts a special co-dispersal model in which algal cells from the photobiont and ascospores from the mycobiont are released together into the environment. To explore the dispersal strategy impact on population structures, a total of 62 <i>Endocarpon</i> individuals and 12 related Verrucariaceae genera individuals, representing co-dispersal strategy and conventional independent dispersal mode were studied. Phylogenetic analysis revealed that <i>Endocarpon</i>, with a large-scale geographical distribution, showed an extremely high specificity of symbiotic associations with their photobiont. Furthermore, three types of group I intron at 1769 site have been found in most <i>Endocarpon</i> mycobionts, which showed a high variety of group I intron in the same insertion site even in the same species collected from one location. This study suggested that the ascospore-alga co-dispersal mode of <i>Endocarpon</i> resulted in this unusual mycobiont-photobiont relationship; also provided an evidence for the horizontal transfer of group I intron that may suggest the origin of the complexity and diversity of lichen symbiotic associations.</p>\u0000<p></p>","PeriodicalId":18780,"journal":{"name":"Mycoscience","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2024-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140827142","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Coltricia raigadensis (Hymenochaetaceae, Basidiomycota), a new species from India","authors":"Patil Prashant B, Vaidya Sharda, Maurya Satish, Yadav Lal Sahab","doi":"10.47371/mycosci.2024.02.001","DOIUrl":"https://doi.org/10.47371/mycosci.2024.02.001","url":null,"abstract":"</p><p>A new species of <i>Coltricia, C. raigadensis</i> is described from tropical region of Maharashtra, India. The species is recognized on the basis of morphological characteristics and phylogenetic analyses using rDNA ITS1-5.8S-ITS2, partial 28S rDNA and partial 18S rDNA sequences. <i>Coltricia raigadensis</i> is characterized by centrally stipitate basidiocarps, adpressed velutinate to tomentose pileal surface, small pores (2–4 per mm), globose to subglobose, thick walled basidiospores measuring 5.6–7 × 5–6.64 μm.</p>\u0000<p></p>","PeriodicalId":18780,"journal":{"name":"Mycoscience","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2024-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140826804","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
MycosciencePub Date : 2024-05-02DOI: 10.47371/mycosci.2024.02.004
Hina Kikuchi, Ayaka Hieno, Haruhisa Suga, Hayato Masuya, Seiji Uematsu, Koji Kageyama
{"title":"New species Pythium amaminum sp. nov. isolated from river water on Amami Island in Japan","authors":"Hina Kikuchi, Ayaka Hieno, Haruhisa Suga, Hayato Masuya, Seiji Uematsu, Koji Kageyama","doi":"10.47371/mycosci.2024.02.004","DOIUrl":"https://doi.org/10.47371/mycosci.2024.02.004","url":null,"abstract":"</p><p><i>Pythium amaminum</i> sp. nov. was isolated from river and reservoir water on Amami island, Kagoshima Prefecture, Japan. The species can grow at temperatures between 10 °C and 35 °C. At the optimum temperature of 25 °C, the radial growth rate is 22.5 mm per day. <i>Pythium amaminum</i> produces filamentous sporangia consisting of branched, lobulate or digitate elements forming large complexes. Zoospores form inside the vesicle, which is discharged through a long tube at least 320 μm. Globose oogonia are ornamented with conical blunt spines. Oospores are aplerotic and globose. Antheridia twine around the oogonia or stick to them. These features having a both of the long discharge tube from sporangium and oogonia with spines are not observed in any other species of the genus <i>Pythium</i>, and thus we conclude that <i>P. amaminum</i> is a new <i>Pythium</i> species.</p>\u0000<p></p>","PeriodicalId":18780,"journal":{"name":"Mycoscience","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2024-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140826733","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
MycosciencePub Date : 2024-03-31DOI: 10.47371/mycosci.2023.12.002
H. Umata, Stephan W. Gale, Kenji Suetsugu, Yuko Ota
{"title":"Variable, life stage-dependent mycorrhizal specificity and its developmental consequences in the fully myco-heterotrophic orchid Cyrtosia septentrionalis","authors":"H. Umata, Stephan W. Gale, Kenji Suetsugu, Yuko Ota","doi":"10.47371/mycosci.2023.12.002","DOIUrl":"https://doi.org/10.47371/mycosci.2023.12.002","url":null,"abstract":"","PeriodicalId":18780,"journal":{"name":"Mycoscience","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2024-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140359682","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}