Figure 5 - uploaded by Jia-Jia Chen
Content may be subject to copyright.
Microscopic structures of Onnia microspora, drawn from holotype. a. Basidiospores. b. Section of trama. c. Hyphae from upper tomentum. d. Hyphae from context.
Source publication
Onnia includes white rotting polypores with annual basidiocarps, a duplex context, monomitic hyphal structure, hymenial setae, and hyaline, thin-walled, smooth basidiospores. Specimens of Onnia, originating mainly from East Asia, Europe, and North America, were studied using both morphology and phylogenetic analyses. Our concatenated data set was d...
Similar publications
The phylogeographic histories of plants in East Asia are complex and shaped by both past large‐scale climatic oscillations and dramatic tectonic events. The impact of these historic events, as well as ecological adaptation, on the distribution of biodiversity remains to be elucidated. Pinus tabuliformis is the dominant coniferous tree in Northern C...
Citations
... Onnia P. Karst. and Fulvifomes Murrill both belong to the Hymenochaetaceae (Ji et al. 2017;Wu et al. 2022). Saccardo (1891) did not designate a type or a reference specimen. ...
Fomes weberianus Bres. & Henn. ex Sacc. is currently the basionym of two very distinct polypores (Basidiomycota), Ganoderma weberianum (Polyporales) and Phylloporia weberiana (Hymenochaetales). This fact has led to almost fifty years of taxonomic confusion. Fomes weberianus was first lectotypified by Steyaert, who accepted the species as G. weberianum. However, studies of Weber's original material in B, duplicate material in S, the protologue, and early interpretations of the name have shown that Steyaert's choice conflicts with the protologue and early interpretations, and that his interpretation as a species of Ganoderma is erroneous. A new lectotype was designated and the species was re-described under the correct interpretation Phylloporia weberiana.
... Tropical Pacific areas are rich for species of Hymenochaetales, and many new taxa have been described from these areas recently (Ji et al. 2017;Bian and Dai 2020;Chen et al. 2020;Du et al. 2020;Guo et al. 2022;Wu et al. 2022a;Zhao et al. 2022;Cui et al. 2023;Dong et al. 2023). However, there are still many unknown taxa in Hymenochaetales from certain regions of tropical Pacific areas. ...
Phylogenetic analyses and morphological examination confirmed two new species in the tropical polypore genus Tropicoporus, T. oceanianus and T. zuzaneae, from Australia and tropical Asia, respectively. A phylogenetic analysis based on the two DNA markers including the nuclear ribosomal internal transcribed spacer (ITS) region and the large subunit (nLSU) gene shows that these two new species form two independent lineages nested in the genus Tropicoporus. T. oceanianus is characterized by perennial and ungu-late basidiomata, the occasional presence of hymenial setae, a trimitic hyphal structure in the context and a dimitic hyphal system in the trama, and broadly ellipsoid to subglo-bose basidiospores measuring 5.2-6 × 4-5 μm. T. zuzaneae is characterized by perennial and resupinate basidiomata with distinct receding margin, glancing pores, very thin to almost lacking subiculum, a dimitic hyphal structure, the absence of any setal elements, broadly ellipsoid to subglobose basidiospores measuring 3.8-4.9 × 3-4.2 µm. The differences among the new species and their phylogenetically related and morphologically similar species are discussed.
... To confirm our species designation and better understand the diversity and pathogenicity of apparent biotic damage agents on coastal pines, including the fungus we had collected, we extracted DNA directly from context tissue of three specimens and conducted conventional PCR using the primer pair ITS1F/ITS4 (Gardes & Bruns, 1993;White et al., 1990). For two of the specimens, DNA was extracted following the protocol of Xin et al. (2003); for the other, such that (apart from reported distribution) they could be identified as O. subtriquetra using the key developed by Ji et al. (2017). ...
... This work reports an expanded host and geographic range for O. subtriquetra. In contrast to the work of Ji et al. (2017), the range of O. subtriquetra encompasses both coasts, and it parasitizes several pine species native to the American West. This complements the study of Zhao et al. (2022), who determined the ancestral origin of the genus to be Asia, and suggests the possibility that O. subtriquetra may have adapted to parasitizing West Coast pines before moving east. ...
... This complements the study of Zhao et al. (2022), who determined the ancestral origin of the genus to be Asia, and suggests the possibility that O. subtriquetra may have adapted to parasitizing West Coast pines before moving east. Our work did support the observation of Ji et al. (2017) that O. subtriquetra is restricted to the genus Pinus, as we did not observe it growing on any other nearby conifer genera. However, it cannot definitively answer whether morphology is sufficient for species identification, because during this study we did not recover any basidiocarps of O. tomentosa (the other species putatively native to northern California) to serve as a comparison. ...
We report observations of Onnia subtriquetra on bishop pine (Pinus muricata) and
shore pine (Pinus contorta var. contorta) from north coastal California. Our identification of this fungus is supported by molecular information, morphological characteristics, and and a description of the observed range of the fungus on the West Coast. These observations represent an expansion of the geographic and host ranges of Onnia subtriquetra, which on the observed sites is generally associated with declining tree condition and the presence of other native forest pathogens and insects.
... Pine series, sand pine forests, mixed pine woodlands and other pine associations in the southeastern deciduous and evergreen forest biome also include Pinus palustris, P. clausa, P. elliottii and P. serotina (Brown et al., 1998;Debreczy and Rácz, 2000;Greller, 2003;Rehfeldt et al., 2012) as a wide range of potential hosts for the here present Hymenochaetaceae. Porodaedalea orientoamericana and Onnia subtriquetra have been reported mostly on Pinus virginiana and Pinus sp. in the central and northern parts of Eastern USA, corresponding with the locally present area of oak-pine and hemlock-white pinemixed hardwood series of the cold temperate deciduous forests biome (Brown et al., 1998;Rehfeldt et al., 2012;Ji et al., 2017;Wu et al., 2022). Such vegetation types and other central-northeastern habitats could also include Pinus taeda, P. pungens, P. resinosa, P. rigida and P. strobus, which could also attract other generalist and angiosperm specialist hymenochaetoids shown above in Table 2 (Debreczy and Rácz, 2000;Decock et al., 2007). ...
... Previously, 152 pathogenic wood-rotting basidiomycetes were recorded in China (Dai 2012), including the following 17 species (Dai et al. 2007;Dai 2012 (Chen et al. 2016;Ji et al. 2017;Wu et al. 2019Liu et al. 2021Liu et al. , 2023Yuan et al. 2021Yuan et al. , 2022. In addition, 72 species are found on living trees and cause sapwood or heartwood or butt and root rot, but they were not listed in the previous studies, and are new forest pathogens in China. ...
Wood-rotting basidiomycetes have been investigated in the Chinese forest ecosystem for the past 30 years. Two hundred and five pathogenic wood-decayers belonging to 9 orders, 30 families, and 74 genera have been found in Chinese native forests, plantations, and gardens. Seventy-two species (accounting for 35% of the total pathogenic species) are reported as pathogenic fungi in China for the first time. Among these pathogens, 184 species are polypores, nine are corticioid fungi, eight are agarics and five are hydnoid basidiomycetes. One hundred and seventy-seven species (accounting for 86%) cause white rot, while 28 species (accounting for 14%) result in brown rot; 157 species grow on angiosperm trees (accounting for 76.5%) and 44 species occur on gymnosperm trees (accounting for 21.5%), only four species inhabit both angiosperms and gymnosperms (accounting for 2%); 95 species are distributed in boreal to temperate forests and 110 in subtropical to tropical forests. In addition, 17 species, including Fomitopsis pinicola, Heterobasidion parviporum, and Phellinidium weirii etc. which were previously treated as pathogenic species in China, do not occur in China according to recent studies. In this paper, the host(s), type of forest, rot type, and distribution of each pathogenic species in China are given.
... It is a homogeneous genus and forms a distinct clade in the Hymenochaetaceae based on phylogenetic analyses (Karsten, 1889;Wagner and Fischer, 2002;Larsson et al., 2006;Dai, 2010). Phylogenetically, Onnia is closely related to Porodaedalea Murrill, while morphologically Porodaedalea differs from Onnia by a perennial growth habit, pileate basidiocarps lacking a stipe, straight setae, and a dimitic hyphal system (Wagner and Fischer, 2002;Larsson et al., 2006;Dai, 2010;Ji et al., 2017). Almost all species of Onnia usually grow on gymnosperms, but one species, Onnia vallata (Berk.) ...
... Almost all species of Onnia usually grow on gymnosperms, but one species, Onnia vallata (Berk.) Y.C. Dai and Niemelä, was recorded on angiosperms based on morphological features only and still without DNA data (Dai, 2010;Ryvarden and Melo, 2014;Ji et al., 2017). Some species of Onnia are well-known pathogens causing Tomentosus Root Rot on trees of Pinaceae, such as Picea and Pinus (Hunt and White, 1998;Germain et al., 2009;Ji et al., 2017). ...
... Y.C. Dai and Niemelä, was recorded on angiosperms based on morphological features only and still without DNA data (Dai, 2010;Ryvarden and Melo, 2014;Ji et al., 2017). Some species of Onnia are well-known pathogens causing Tomentosus Root Rot on trees of Pinaceae, such as Picea and Pinus (Hunt and White, 1998;Germain et al., 2009;Ji et al., 2017). ...
Species of Onnia are important tree pathogens and play a crucial role in forest ecosystems. The species diversity and distribution of Onnia have been studied, however, its evolutionary history is poorly understood. In this study, we reconstructed the phylogeny of Onnia using internal transcribed spacers (ITS) and large subunit (LSU) rDNA sequence data. Molecular clock analyses developed the divergence times of Onnia based on a dataset (ITS + LSU rDNA + rpb1 + rpb2 + tef1α). Reconstruct Ancestral State in Phylogenies (RASP) was used to reconstruct the historical biogeography for the genus Onnia with a Dispersal Extinction Cladogenesis (DEC) model. Here, we provide a robust phylogeny of Onnia, with a description of a new species, Onnia himalayana from Yunnan Province, China. Molecular clock analyses suggested that the common ancestor of Onnia and Porodaedalea emerged in the Paleogene period with full support and a mean stem age of 56.9 Mya (95% highest posterior density of 35.9-81.6 Mya), and most species occurred in the Neogene period. Biogeographic studies suggest that Asia, especially in the Hengduan-Himalayan region, is probably the ancestral area. Five dispersals and two vicariances indicate that species of Onnia were rapidly diversified. Speciation occurred in the Old World and New World due to geographic separation. This study is the first inference of the divergence times, biogeography, and speciation of the genus Onnia.
... The genus has pileate to laterally stipitate basidiocarps with yellowish brown pileal surfaces, whereas Pyrrhoderma sensu Zhou et al. bears effused-re exed, pileate to laterally stipitate basidiocarps with dark pileal surfaces). Coltricia, Coltriciella, Onnia and Phylloporia also accommodate certain species bearing pileate to stipitate basidiocarps with yellowish brown pileal surfaces; however, Onnia differs from Fulvoderma in the presence of hymenial setae(Ji et al. 2017a), while the other three genera differ in having colored and thick-walled basidiospores(Dai 2010).Key to species of Fulvoderma 1. Contextual hyphae 3.5-8 μm wide, tramal hyphae interwoven........................................................ ........................................................................................................ F. australe L.W. Zhou & Y.C. Dai Basidiocarps annual, laterally stipitate, solitary or imbricate; pileal surface yellowish brown, indistinctly concentrically zonate, tuberculate and warty; pore surface buff yellow to cinnamon buff, glancing; pores 5-6 per mm; context honey yellow, with a distinct cuticle on the pileal surface; hyphal system monomitic; contextual hyphae 3.5-8 μm wide, tramal hyphae interwoven; cystidioles fusoid; basidiospores broadly ellipsoid, hyaline, thin-walled, IKI−, CB−, 4.5-5.5(-6) × (3.5-)4-4.5(-5) ...
Taxonomy and phylogeny of poroid Hymenochaetaceae based on the most comprehensive phylogenetic analyses are presented. A phylogeny based on a combined dataset of ITS and nLSU sequences for accepted genera of Hymenochaetaceae was analyzed and multigene phylogenies for most species of ten large genera including Clotricia , Fomitiporella , Fomitiporia , Fulvifomes , Fuscoporia , Inonotus , Phylloporia , Porodaedalea , Sanghuangporus and Tropicoporus , were carried out. Based on samples from 37 countries of five continents, seven new genera, Meganotus, Neophellinus, Nothonotus, Pachynotus, Perenninotus, Pseudophylloporia and Rigidonotus, are introduced, 37 new species, Coltricia tibetica , Fomitiporella crassa , F. queenslandica , Fomitiporia eucalypti, F. gatesii , F. ovoidospora , Fulvifomes azonatus, F. caligoporus , F. costaricense , F. floridanus , F. jouzaii , F. nakasoneae , F. subindicus , Fuscoporia sinuosa , F. submurina , Inonotus subradiatus , I. vietnamensis , Neomensularia castanopsidis , Pachynotus punctatus , Phellinus cuspidatus , P. subellipsoideus , Phylloporia minutissima , P. tabernaemontanae , Porodaedalea occidentiamericana , P. orientoamericana , P. qilianensis , P. schrenkianae , Pseudophylloporia australiana , Sanghuangporus australianus , S. lagerstroemiae , Tropicoporus angustisulcatus , T. hainanicus , T. lineatus , T. minus , T. ravidus , T. substratificans and T. tenuis, are described, and 108 new combinations are proposed. In addition, one illegitimate name and two invalid names are renamed. The taxonomic relevance and limits of the new taxa are discussed. Photos and illustrations for 37 new species are presented, and a full description for each new species is given. Eventually, this study recognizes 672 species in 34 genera and provides a modern treatment of the poroid Hymenochaetaceae in the world. A key to the accepted poroid genera of Hymenochaetaceae is provided, and identification keys to the accepted species of 32 poroid genera worldwide are given. A synopsis description of each species is included in these keys.
... Polypores are an extensively studied group of Basidiomycota, and more than 1500 species have been recorded in the world [36][37][38][39][40][41][42]. Molecular phylogenies have demonstrated that more new taxa exist in the world [43][44][45][46][47], and more crypto species will be confirmed after molecular analyses of some traditional species in sensu lato. Thus, in order to understand the diversity, phylogeny and evolution of the fungi, future taxonomic and phylogenetic work should be based on both molecular and morphological characteristics. ...
The genus Sidera is a polypore genus with resupinate, white to cream or buff fresh basidioma, poroid or hydnoid hymenophore, a monomitic or dimitic hyphal system with generative hyphae bearing clamp connections, the presence of rosette-like crystals and allantoid to lunate basidiospores. We study the phylogeny and diversity of Sidera herein by using both morphological and molecular methods. Phylogenetic analyses are based on the ITS dataset, the combined 2-locus dataset (5.8S + nLSU) and 7-locus dataset (ITS + nLSU + RPB1 + RPB2 + TEF1 + mtSSU + nSSU) of 15 taxa of Sidera all over the world. Among them, four species are new to science and described and illustrated in this paper, viz. S. inflata, S. malaysiana, S. punctata and S. roseo-bubalina. In addition, three taxa were treated as Sidera vulgaris sensu lato. An identification key of the 14 accepted species
of Sidera worldwide is provided.
... Phylogenetic analyses based on comparison of DNA gene regions resulted in the progressive definition of smaller and more homogeneous generic units or subgroups of poroid Hymenochaetaceae Fischer 2001, 2002;Zhou et al. 2016bZhou et al. , 2016c. Today, about 28 genera are accepted among the poroid Hymenochaetaceae (Wu et al. 2016;Zhou et al. 2016aZhou et al. , 2016bZhou et al. , 2016cJi et al. 2017a). For an overview of the taxonomic treatments, see Larsen and Cobb-Poulle (1990), Fischer (1996), Fischer (2001, 2002), Ryvarden (2004Ryvarden ( , 2005, Larsson et al. (2006), Dai (2010), Ryvarden and Melo (2014), and Wu et al. (2016), and Drechsler-Santos et al. (2016) and Zhou et al. (2016aZhou et al. ( , 2016cZhou et al. ( , 2018 for keys to recognize the proposed genera. ...
Poroid Hymenochaetaceae associated with wood rots of trees in three timber-harvesting compartments of the Garden Route National Park (GRNP), South Africa, were investigated using multilocus phylogenetic analyses and morphology of the basidiomes. Results revealed the presence of 10 species belonging to five genera. Six of the species are known, but four are described as new. The known species include Fomitiporia capensis, Fuscoporia gilva, Sanghuangporus microcystideus, Tropicoporus tropicalis, Inonotus rickii, and Inonotus setuloso-croceus. The new species are described as Fomitiporia tsitsikamensis, Fulvifomes elaeodendri, Fuscoporia pulviniformis, and Phellinus guttiformis.
... On the other hand, vast diversity of fungi can be seen in plantations of exotic conifers (Newton and Haigh 1998;Humphrey et al. 2000). These planted stands could serve as potential substrata for native lignicolous fungal assemblages, which could include rare and threatened species (Humphrey et al. 2000;Ryvarden and Melo 2014 (Dai 2010(Dai , 2012Ryvarden and Melo 2014;Ji et al. 2017). These fungi are characterized by annual, sessile or stipitate basidiocarps; pileal surface from yellowish brown to dark brown and velutinate to rough; pore surface from yellowish brown to dark brown; duplex context. ...
... These fungi are characterized by annual, sessile or stipitate basidiocarps; pileal surface from yellowish brown to dark brown and velutinate to rough; pore surface from yellowish brown to dark brown; duplex context. Main microscopic characteristics are: monomitic hyphal system with generative hypha bearing simple septa; presence of mostly hooked hymenial setae; and hyaline, thin-walled, smooth, nonamyloid, nondextrinoid, and acyanophilous basidiospores (Dai 2010;Ji et al. 2017). The genus is widespread; its distribution extends from boreal to subtropical climates, being present throughout the Northern Hemisphere (Dai 2012;Ryvarden and Melo 2014;Lockman and Kearns 2016;Ji et al. 2017). ...
... Main microscopic characteristics are: monomitic hyphal system with generative hypha bearing simple septa; presence of mostly hooked hymenial setae; and hyaline, thin-walled, smooth, nonamyloid, nondextrinoid, and acyanophilous basidiospores (Dai 2010;Ji et al. 2017). The genus is widespread; its distribution extends from boreal to subtropical climates, being present throughout the Northern Hemisphere (Dai 2012;Ryvarden and Melo 2014;Lockman and Kearns 2016;Ji et al. 2017). ...
