Mycological Progress最新文献_第3页

Biofilm formation by the fungus Phaeomoniella chlamydospora: a causal agent of esca disease of grapevine Phaeomoniella chlamydospora 真菌形成的生物膜：葡萄藤 esca 病的病原体

IF 2.4 3区生物学

Mycological Progress Pub Date : 2024-06-20 DOI: 10.1007/s11557-024-01976-y

Zoltán Karácsony, Nikolett Molnár, Dóra Szabó, Nóra Bakos-Barczi, Miklós Lovas, Xénia Pálfi, Kálmán Zoltán Váczy

{"title":"Biofilm formation by the fungus Phaeomoniella chlamydospora: a causal agent of esca disease of grapevine","authors":"Zoltán Karácsony, Nikolett Molnár, Dóra Szabó, Nóra Bakos-Barczi, Miklós Lovas, Xénia Pálfi, Kálmán Zoltán Váczy","doi":"10.1007/s11557-024-01976-y","DOIUrl":"https://doi.org/10.1007/s11557-024-01976-y","url":null,"abstract":"The present study suggests that the Esca pathogenic fungus Phaeomoniella chlamydospora can form biofilm in vitro and possibly in the grapevine host tissues. This phenomenon was revealed by the detailed examination of the development of three isolates of the fungus, showing dimorphic growth with the formation of yeast-like cells in the center, which were embedded in a polysaccharide-rich extracellular matrix, and filamentous growth at the colony margins. The colonies produced acetate, which chemical proved to be an enhancer of yeast-like growth and extracellular matrix production. The dynamic of biofilm formation was correlated with the ability of the strains to produce acetate, suggesting that it acts as a quorum sensing molecule in the process. The dimorphic growth of P. chlamydospora was also demonstrated in host tissues as a sole nutrient source, suggesting that biofilm can be produced in planta and take part in the pathogenesis of Esca. The biofilms formed by the fungus may contribute to the previously reported inhibition of sap flow in the infected plants, while its quorum sensing-mediated nature may partly explain the controversial literature data on the occurrence of the pathogen and symptom severity in the host.","PeriodicalId":19111,"journal":{"name":"Mycological Progress","volume":"2015 1","pages":""},"PeriodicalIF":2.4,"publicationDate":"2024-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141501476","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Poaceascoma zborayi sp. nov. and Agrorhizomyces patris gen. et spec. nov. – Two novel dark septate endophytes colonizing wheat (Triticum aestivum) roots from a cropland in Hungary Poaceascoma zborayi sp.nov.和 Agrorhizomyces patris gen.

IF 2.4 3区生物学

Mycological Progress Pub Date : 2024-06-03 DOI: 10.1007/s11557-024-01970-4

Ildikó Imrefi, Dániel G. Knapp, Gábor M. Kovács

{"title":"Poaceascoma zborayi sp. nov. and Agrorhizomyces patris gen. et spec. nov. – Two novel dark septate endophytes colonizing wheat (Triticum aestivum) roots from a cropland in Hungary","authors":"Ildikó Imrefi, Dániel G. Knapp, Gábor M. Kovács","doi":"10.1007/s11557-024-01970-4","DOIUrl":"https://doi.org/10.1007/s11557-024-01970-4","url":null,"abstract":"In this study, we investigated two distinct new phylogenetic lineages of root-colonizing dark septate endophytic fungi colonizing wheat (Triticum aestivum) roots from a long-term agricultural experimental site in Hungary. According to four-locus (internal transcribed spacer, partial large and small subunit regions of nuclear ribosomal DNA, and partial translation elongation factor 1-alpha) phylogenetic analyses, the isolates belong to the Lentitheciaceae and Didymosphaeriaceae of the Pleosporales (Dothideomycetes). We studied the morphology and culture characteristics of the strains. We carried out in vitro resynthesis pot experiments with their original hosts and found no overall negative effect of the inoculation with different isolates of the new taxa. One of the lineages belonged to the genus Poaceascoma (Lentitheciaceae) and represented a novel species described here as Poaceascoma zborayi. We could describe conidia-like structures from this species. Isolates of the other lineage represented a monotypic novel genus in the Didymosphaeriaceae. Accordingly, the new genus, Agrorhizomyces, represented by the species A. patris, is introduced. Sterile, globose structures resembling immature sporocarps were detected. Sequence similarity searches indicated that P. zborayi might be widely distributed, while no sequence similar to A. patris was found outside the sampling area.","PeriodicalId":19111,"journal":{"name":"Mycological Progress","volume":"313 1","pages":""},"PeriodicalIF":2.4,"publicationDate":"2024-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141259753","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Morphology and molecular phylogeny of four new species of Entoloma (Entolomataceae, Agaricales) from Europe and Western Eurasia 欧洲和西欧亚大陆 Entoloma（Entolomataceae，姬松茸科）四个新种的形态学和分子系统发育

IF 2.4 3区生物学

Mycological Progress Pub Date : 2024-05-29 DOI: 10.1007/s11557-024-01972-2

Oğuzhan Kaygusuz, Kai Reschke, Abdullah Kaya, Bálint Dima, Olga Morozova, Machiel Evert Noordeloos, Meike Piepenbring

{"title":"Morphology and molecular phylogeny of four new species of Entoloma (Entolomataceae, Agaricales) from Europe and Western Eurasia","authors":"Oğuzhan Kaygusuz, Kai Reschke, Abdullah Kaya, Bálint Dima, Olga Morozova, Machiel Evert Noordeloos, Meike Piepenbring","doi":"10.1007/s11557-024-01972-2","DOIUrl":"https://doi.org/10.1007/s11557-024-01972-2","url":null,"abstract":"Entoloma is one of the largest genera of Agaricales in terms of species diversity and is widespread throughout the world. In the present study, four new species, namely Entoloma brunneofibrillosum, E. humidiphilum, E. ochraceodiscum, and E. colchicum, are introduced as new to science. These species are described based on specimens collected in Cyprus, Georgia, Hungary, Italy, Russia, Spain, and Türkiye, including morphological characteristics and phylogenetic analyses of the nuclear ribosomal DNA internal transcribed spacer (ITS) sequences. Entoloma brunneofibrillosum is recognized by its brown to dark brown pileus with conspicuous dark, radial fibrils, a pale brown stipe with glistening fibrils, and usually fusiform to broadly clavate cheilocystidia. It belongs to the /Undulatosporum clade. Entoloma humidiphilum (subg. Alboleptonia) is close to E. niveum from New Zealand but differs by a completely pruinose or minutely squamulose pileus surface, narrowly cylindrical to cylindrical pileipellis elements with a deep median constriction, and by occurring in riparian habitats. Entoloma ochraceodiscum is characterized by funnel-shaped basidiomata with a deeply depressed yellowish-brown pileus and belongs to the section Griseorubida. Entoloma colchicum (subg. Nolanea) is similar to E. ortonii but differs by its distinctive radially fibrillose or velutinous pileus and the absence of odour. The new species are presented with photographs, line drawings, and comparisons with similar taxa.","PeriodicalId":19111,"journal":{"name":"Mycological Progress","volume":"96 1","pages":""},"PeriodicalIF":2.4,"publicationDate":"2024-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141171212","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Molecular systematics and taxonomy reveal three new wood-inhabiting fungal species (Basidiomycota) from Yunnan Province, southern China 分子系统学和分类学揭示了中国南部云南省的三个木栖真菌新种（担子菌纲

IF 2.4 3区生物学

Mycological Progress Pub Date : 2024-05-11 DOI: 10.1007/s11557-024-01968-y

Qi Li, Yunxuan Luo, Changlin Zhao

{"title":"Molecular systematics and taxonomy reveal three new wood-inhabiting fungal species (Basidiomycota) from Yunnan Province, southern China","authors":"Qi Li, Yunxuan Luo, Changlin Zhao","doi":"10.1007/s11557-024-01968-y","DOIUrl":"https://doi.org/10.1007/s11557-024-01968-y","url":null,"abstract":"Three new wood-inhabiting fungal species, Lyomyces punctatomarginatus, L. lancangjiangensis and Mycobernardia yunnanensis, are proposed based on a combination of morphological features and molecular evidence. Lyomyces punctatomarginatus is characterized by a smooth hymenophore, a monomitic hyphal system with the generative hyphae having clamp connections, the presence of fusoid cystidia, and ellipsoid basidiospores (4–5.3 × 2.5–3 µm); L. lancangjiangensis is characterized by a monomitic hyphal system with clamped generative hyphae, fusiform and capitate cystidia, and ellipsoid basidiospores (4.5–5.8 × 2.8–4.5 µm). Mycobernardia yunnanensis is characterized by a monomitic hyphal system with clamped generative hyphae, and allantoid basidiospores (4.5–6.3 × 2–3 µm). Sequences of ITS and nLSU rDNA markers of the studied samples were generated and phylogenetic analyses were performed with maximum likelihood, maximum parsimony, and Bayesian inference methods. The phylogram inferred from the ITS dataset revealed that L. punctatomarginatus formed a monophyletic lineage and was grouped closely with L. crustosus, L. juniperi, L. niveus and L. ochraceoalbus. Additionally, L. lancangjiangensis grouped closely with L. albopulverulentus and L. bambusinus with strong supports. The phylogenetic tree inferred from the ITS + LSU rDNA sequences highlighted that the new species M. yunnanensis was sister to M. incrustans, the type species of the genus Mycobernardia within the family Corticiaceae.","PeriodicalId":19111,"journal":{"name":"Mycological Progress","volume":"42 1","pages":""},"PeriodicalIF":2.4,"publicationDate":"2024-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140929954","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Endothallic yeasts in the terricolous lichens Cladonia 陆生地衣Cladonia中的内生酵母菌

IF 2.4 3区生物学

Mycological Progress Pub Date : 2024-05-02 DOI: 10.1007/s11557-024-01966-0

Aleksey Kachalkin, Maria Tomashevskaya, Timofey Pankratov, Andrey Yurkov

{"title":"Endothallic yeasts in the terricolous lichens Cladonia","authors":"Aleksey Kachalkin, Maria Tomashevskaya, Timofey Pankratov, Andrey Yurkov","doi":"10.1007/s11557-024-01966-0","DOIUrl":"https://doi.org/10.1007/s11557-024-01966-0","url":null,"abstract":"Lichens are multi-component microbial communities where yeasts are common. This work was designed to address the taxonomic diversity and distribution of cultivated endothallic yeasts in terricolous lichens of the genus Cladonia. Lichens Cladonia stellaris, C. rangiferina, C. cornuta, and C. pleurota from arctic, subarctic, and continental boreal climates in Russia in a range of biotopes were studied. In total, 40 yeast species were isolated. It revealed a broad taxonomic range of endothallic yeast with a substantial proportion of basidiomycetes from subphyla Agaricomycotina and Pucciniomycotina. Many common yeast species were found within the epithallic and endothallic yeast communities of some lichens studied. The physiological and ecological characterization of 30 basidiomycetous endothallic yeasts enhances our understanding of lichen habitats and may aid in culturing seldom-isolated lichenicolous fungi. Out of 40 species in this study, 21 new yeast species were discovered, and 10 new yeast species were proposed with their formal descriptions. They are Colacogloea glushakovae sp. nov., Cyrenella lichenicola sp. nov., Microsporomyces wangii sp. nov., Microsporomyces cladoniae sp. nov., Genolevuria nadymea sp. nov., Teunia turchettiae sp. nov., Phaeotremella sibirica sp. nov., Phaeotremella endothallina sp. nov., Piskurozyma altaica sp. nov., and Piskurozyma cladoniicola sp. nov.","PeriodicalId":19111,"journal":{"name":"Mycological Progress","volume":"43 1","pages":""},"PeriodicalIF":2.4,"publicationDate":"2024-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140827107","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Two new Agaricomycetes related to post-fire mosses 两种与火后苔藓有关的新姬松菌

IF 2.4 3区生物学

Mycological Progress Pub Date : 2024-04-19 DOI: 10.1007/s11557-024-01965-1

Alexander Karich, René Jarling, René Ullrich, Daniela Demski, Ben Bubner, Martin Hofrichter

引用次数: 0

Zygosporium palaeogibbum sp. nov. (Xylariales, Ascomycota) associated with Cinnamomum Schaeff. (Lauraceae) leaves from the Siwalik (Middle Miocene) of eastern Himalaya Zygosporium palaeogibbum sp.(来自喜马拉雅山东部 Siwalik（中新世中期）的与 Cinnamomum Schaeff.（月桂科）叶子有关的 Zygosporium palaeogibbum sp.

IF 2.4 3区生物学

Mycological Progress Pub Date : 2024-04-08 DOI: 10.1007/s11557-024-01962-4

Sumana Mahato, Maria Virginia Bianchinotti, Sampa Kundu, Mahasin Ali Khan

{"title":"Zygosporium palaeogibbum sp. nov. (Xylariales, Ascomycota) associated with Cinnamomum Schaeff. (Lauraceae) leaves from the Siwalik (Middle Miocene) of eastern Himalaya","authors":"Sumana Mahato, Maria Virginia Bianchinotti, Sampa Kundu, Mahasin Ali Khan","doi":"10.1007/s11557-024-01962-4","DOIUrl":"https://doi.org/10.1007/s11557-024-01962-4","url":null,"abstract":"Well-preserved remains of a mitosporic fungus were found on leaf cuticles of Cinnamomum sp. (Lauraceae) recovered from the lower Siwalik (Chunabati Formation; Middle Miocene) sedimentary stratum of Darjeeling foothills of eastern Himalaya. Based on the characteristic features (solitary vesicular conidiophores arising directly from a superficial mycelium and strongly curved, darkly pigmented, ovoid to pyriform vesicles with 1–3 celled stalk cells), it is here proposed as a new fossil species, Zygosporium palaeogibbum sp. nov. The in situ evidence of Z. palaeogibbum in appreciable numbers on the host leaf cuticles suggests the probable existence of a host-specific saprophytic relationship in the Darjeeling sub-Himalaya’s ancient warm humid tropical climate during the time of deposition. This conclusion on past climate is in agreement with published qualitative, quantitative, and palaeomycological climatic data obtained from the study of megafossil plant remains from the same fossil locality.","PeriodicalId":19111,"journal":{"name":"Mycological Progress","volume":"57 3 1","pages":""},"PeriodicalIF":2.4,"publicationDate":"2024-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140569419","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Revised taxon definition in European Cortinarius subgenus Dermocybe based on phylogeny, chemotaxonomy, and morphology 基于系统发育、化学分类学和形态学的欧洲 Cortinarius 亚属 Dermocybe 的修订分类定义

IF 2.4 3区生物学

Mycological Progress Pub Date : 2024-04-05 DOI: 10.1007/s11557-024-01959-z

Lesley Rosina Huymann, Anna Hannecker, Turrini Giovanni, Kare Liimatainen, Tuula Niskanen, Maraike Probst, Ursula Peintner, Bianka Siewert

{"title":"Revised taxon definition in European Cortinarius subgenus Dermocybe based on phylogeny, chemotaxonomy, and morphology","authors":"Lesley Rosina Huymann, Anna Hannecker, Turrini Giovanni, Kare Liimatainen, Tuula Niskanen, Maraike Probst, Ursula Peintner, Bianka Siewert","doi":"10.1007/s11557-024-01959-z","DOIUrl":"https://doi.org/10.1007/s11557-024-01959-z","url":null,"abstract":"Cortinarius (Fr.) Fr. is one of the most species-rich genera in the Agaricales (Basidiomycota). Cortinarius subgen. Dermocybe (Fr.) Trog includes brightly coloured Cortinarii with anthraquinone pigments. The chemotaxonomic approach has always been as important as classical methods for species definition of Dermocybe and helped to improve overall species concepts. However, some species concepts within this group remain unclear. We therefore address this topic based on a combined phylogenetic, morphological, and pigment-chemical approach. For this, sequence data, HPLC–MS pigment profiles and spore sizes were included were included to obtain a better resolution of taxa. The study was based on 173 recent collections and 12 type specimens. A total of 117 rDNA ITS sequences were produced from the collections in this study, 102 sequences were retrieved from databases. We could detect and clearly delimit 19 Dermocybe species occurring in central European habitats, from which 16 are discussed in detail. Additionally, we grouped the detected anthraquinone pigments into four groups. This detailed analysis of dermocyboid Cortinarius species occurring in a restricted number of habitat types confirmed our hypothesis that species diversity is much higher than currently assumed. This high diversity is blurred by too wide and incorrect species concepts of several classical species like C. croceus and C. cinnamomeus. Molecular and chemotaxonomical studies carried out together with careful phenotypical analyses resulted in a good differentiation of species. A key is presented for these taxa to allow a better identification of Cortinarius subgenus Dermocybe spp. occurring in Central Europe mainly in the alpine range.","PeriodicalId":19111,"journal":{"name":"Mycological Progress","volume":"104 1","pages":""},"PeriodicalIF":2.4,"publicationDate":"2024-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140569638","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Five new species of Pseudosperma (Inocybaceae, Agaricales) from Benin and Turkey based on morphological characteristics and phylogenetic evidence 基于形态特征和系统发育证据的贝宁和土耳其 Pseudosperma（菊科，姬松茸属）的五个新种

IF 2.4 3区生物学

Mycological Progress Pub Date : 2024-04-03 DOI: 10.1007/s11557-024-01964-2

Oğuzhan Kaygusuz, Ditte Bandini, Adrian Rühl, Sepas Sarawi, Nourou S. Yorou, Meike Piepenbring

{"title":"Five new species of Pseudosperma (Inocybaceae, Agaricales) from Benin and Turkey based on morphological characteristics and phylogenetic evidence","authors":"Oğuzhan Kaygusuz, Ditte Bandini, Adrian Rühl, Sepas Sarawi, Nourou S. Yorou, Meike Piepenbring","doi":"10.1007/s11557-024-01964-2","DOIUrl":"https://doi.org/10.1007/s11557-024-01964-2","url":null,"abstract":"Species of Pseudosperma (Inocybaceae) are widely distributed from temperate to tropical regions. In this study, we describe and illustrate five new species of Pseudosperma: P. beninense, P. cremeo-ochraceum, P. squarrosofulvum, P. stramineum, and P. tiliae, based on comprehensive analyses of morphological and molecular data derived from specimens collected in Benin (West Africa) and Turkey (Western Eurasia). These new species have been found in forests with Isoberlinia spp. and other ectomycorrhizal tree species in Benin and in association with Tilia platyphyllos in Turkey. The phylogenetic relationships of the new species were inferred through analyses of nuclear rDNA sequences, encompassing the internal transcribed spacer (ITS), 28S rDNA, and RNA polymerase II second largest subunit (RPB2) region. Phylogenetic analyses revealed that P. beninense, P. cremeo-ochraceum, P. squarrosofulvum, and P. stramineum from Benin cluster with species from Australia, China, and India within a clade formed exclusively by species known from the palaeotropics and Australia, whereas P. tiliae from Turkey clustered with P. mediterraneum from Italy. Detailed descriptions are provided, supplemented by illustrations and line drawings of key micromorphological features. In addition, a comparative analysis with morphologically similar and phylogenetically closely related species is presented and discussed in detail.","PeriodicalId":19111,"journal":{"name":"Mycological Progress","volume":"115 1","pages":""},"PeriodicalIF":2.4,"publicationDate":"2024-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140569599","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Morphological and phylogenetic analyses of Saprolegniales (Oomycota) reveal taxonomic and nomenclatural novelties Saprolegniales（Oomycota）的形态学和系统发生学分析揭示了分类学和命名学上的新情况

IF 2.4 3区生物学

Mycological Progress Pub Date : 2024-03-27 DOI: 10.1007/s11557-024-01963-3

Carmen Lidia Amorim Pires-Zottarelli, Sarah Cristina de Oliveira da Paixão, Agostina Virginia Marano, Jefferson Prado, Timothy Yong James, Gustavo Henrique Jerônimo, Marcela Castilho Boro, Marco Thines, Ana Lucia de Jesus

{"title":"Morphological and phylogenetic analyses of Saprolegniales (Oomycota) reveal taxonomic and nomenclatural novelties","authors":"Carmen Lidia Amorim Pires-Zottarelli, Sarah Cristina de Oliveira da Paixão, Agostina Virginia Marano, Jefferson Prado, Timothy Yong James, Gustavo Henrique Jerônimo, Marcela Castilho Boro, Marco Thines, Ana Lucia de Jesus","doi":"10.1007/s11557-024-01963-3","DOIUrl":"https://doi.org/10.1007/s11557-024-01963-3","url":null,"abstract":"Saprolegniaceae s.l. is a species-rich family of the monophyletic order Saprolegniales (Oomycota, Straminipila). Members of this family are primarily saprotrophs on cellulosic, chitinous, and proteinaceous materials in both aquatic and terrestrial ecosystems. This family also includes pathogens infecting various hosts, such as plants, crustaceans, and fishes at various life cycle stages. A diversity survey of Saprolegniaceae s.l. from freshwater and soil of the Brazilian Atlantic Rainforest resulted in 20 species isolated and identified through morphological and molecular analyses. These analyses revealed two new genera (Beakesia and Cokeria) and two new species, Achlya delicata and Brevilegnia milaneziana. Beakesia is proposed to accommodate Achlya catenulata, while Cokeria includes species with subcentric and centric oospores previously assigned to Achlya (A. racemosa, A. radiosa, and A. sparrowii). Our findings highlight the importance of additional sampling and studies in biodiversity-rich areas such as the Brazilian Atlantic Rainforest. They also provide a new perspective on the evolutionary relationships and nomenclatural delineation of traditional Oomycota genera, and revisit the family subdivisions of Saprolegniales, formally introducing Achlyaceae.","PeriodicalId":19111,"journal":{"name":"Mycological Progress","volume":"65 1","pages":""},"PeriodicalIF":2.4,"publicationDate":"2024-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140314824","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0