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Helicomyces lilliputeus. A. Conidia directly formed on creeping hyaline (HMAS 98853). B. Conidia polyblastically formed on apex of erect, macronematous conidiophores (HMAS 98853). C. Conidiophores and conidia (WU2018). Bars = 10 µm. C
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Morphological studies of anamorphic taxa with helicospores (helicosporous fungi) were carried out based on observation of specimens collected in China and comparisons with descriptions in the literature. After examination of more than 300 freshly collected specimens and 100 herbarium specimens, we conclude that 71 species in 14 genera are presently...
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Context 1
... Fig. 5) Colonies effuse, white, loose, thin, cottony. Mycelium mostly superficial, partly immersed, composed of dilute hyaline to pale yellow, branched, septate hyphae, 2-3 µm thick. Conidiophores solitary or grouped, simple or branched, 4-6 µm wide in broadest place, apering to a hyaline, denticle apex, 2-3 µm wide. Conidiogenous cells ...
Context 2
... anastomosans Linder, Ann. Mo. Bot. Gard. 18: 13-14, 1931. ( Fig. 25) Colonies effuse, white cottony. Mycelium partly superficial and partly immersed partly, composed of branched, septate, subhyaline, smooth-walled, 0.5-1 µm thick hyphae. Conidiophores macronematous, ascending, septate, flexuous, yellow to golden brown, branched irregularly, arising singly or in clusters from the hyaline repent ...
Context 3
... Fig. 85) Aero-aquatic fungus. Colonies on natural substrate glistening crystal white. Mycelium partly superficial and partly immersed, composed of hyaline, septate, branched hyphae 2-2.5 µm wide. Conidiophores micronematous to semimacronematous, mononematous, hyaline, septate, varying in length, 2.5-3 µm diam, sparingly branched. Conidiogenous ...
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Citations
... Helicomina is a hyphomycete easily recognizable by the peculiarities of its spores. It is pantropical (Seifert et al., 2011) and known to cause damage to plant kovic et al., 2002;Zhao et al., 2007) in similar studies. Microsporum is a hyphomycete, keratinophilic and included in the group of dermatophytes (Ciesielska et al., 2021). ...
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... Moreover, Lu et al. (2018b) re-assessed Tubeufiales, based on multi-locus phylogeny and mor-phology and introduced a new species, N. hyalosporus, but synonymised the following four strains under Neohelicomyces pallidus, i.e. Helicosporium pallidum (CBS 962.69 and UAMH 10535), Tubeufia helicomyces (CBS 271.52) and T. paludosa (CBS 245.49) (Linder 1929;Goos 1986;Zhao et al. 2007;Ruibal et al. 2009). More recently, Crous et al. (2019aCrous et al. ( , 2019b have introduced two species, Neohelicomyces deschampsiae and N. melaleucae, collected from terrestrial habitats in Europe (Germany) and North America (USA), respectively. ...
... To date, Neohelicomyces comprises 13 species, all of which have molecular data (Table 2) and are distributed in Asia (mostly in China), Europe (Germany, Czechia, Italy and Netherlands) and North America (USA). They occur as saprobes on various plant litter in both freshwater and terrestrial habitats (e.g. on Deschampsia cespitosa, Fraxinus excelsior, Melaleuca styphelioides, Miscanthus floridulus, Pandanus sp. and Quercus robur), according to Linder (1929), Goos (1989), , Zhao et al. (2007); Luo et al. (2017), Lu et al. (2018b), Tibpromma et al. (2018), Crous et al. (2019aCrous et al. ( , 2019b, Dong et al. (2020), Hsieh et al. (2021), Lu et al. (2022) and Yang et al. (2023). All of the Neohelicomyces species that have been reported so far only occur in the asexual morph. ...
... A list of accepted Neohelicomyces species with known sequence data is also provided ( Table 2). There are 16 species (including three new species described in the present study) in Neohelicomyces, of which ten were found from freshwater habitats, while the remaining six ones were reported from terrestrial habitats, with 13 species collected from China (Linder 1929;Goos 1989;Zhao et al. 2007;Luo et al. 2017;Lu et al. 2018bLu et al. , 2022Tibpromma et al. 2018;Crous et al. 2019aCrous et al. , 2019bDong et al. 2020;Hsieh et al. 2021;Yang et al. 2023). Neohelicomyces pallidus is the most widely distributed member of Neohelicomyces genus and has been reported from terrestrial habitats in various regions of the world, including China, Czechia, Italy, Japan, Netherlands and USA (Linder 1929;Goos 1989;Zhao et al. 2007;Lu et al. 2018b). ...
Neohelicomyces species are a group of helicosporous hyphomycetes with the potential to produce secondary metabolites. During our investigation of helicosporous fungi, six collections were isolated from both terrestrial and freshwater habitats in Guizhou Province, China. Based on multigene phylogenetic analysis (ITS, LSU, tef1α and rpb2), coupled with morphological data, three new Neohelicomyces species, viz. N. guizhouensis, N. helicosporus and N. hydei were established. A list of accepted Neohelicomyces species with molecular data was provided. The strain of Neohelicomyces pallidus (UAMH 10535) was synonymised under N. denticulatus based on molecular data.
... & Sacc. (Zhao et al. 2007), but clearly differs in the cell arrangement of conidia and the presence of monilioid cells. ...
Fungal palynomorph corresponding to the fossil-species Lirasporis intergranifer R. Potonié & S.C.D. Sah, from the Middle Miocene lignite mine from Tomisławice (central Poland), was considered as a new combination Cancellidium intergraniferum (R. Potonié & S.C.D. Sah) G. Worobiec & E. Worobiec, comb. nov. Fossil-genus Lirasporis is treated as synonym of modern Cancellidium genus. C. intergraniferum from the Miocene of Poland documents the first fossil record of the Cancellidium Tubaki genus outside Asia, the first record of this genus from Europe, and the northernmost known fossil occurrence of Cancellidium. Living representatives of Cancellidium seem to prefer warm and humid climates and being aero-aquatic hyphomycetes are usually associated with decaying woody remains in aquatic environment. Similar ecology is suggested for the fossil C. intergraniferum, which could be a reliable fungal non-pollen palynomorph proxy for palaeoclimatic and palaeoenvironmental reconstructions.
... H. taenia is known from the rotted wood (bark) of Populus (Moore, 1955;Goos, 1986;Zhao et al., 2007). ...
... Helicoma taenia) was saprobic on Populus (cf. Zhao et al., 2007), while BGS-5 (Bactrodesmium betulicola) and BGS-27 (Bactrodesmium xerophilum) were related to Betula pendula (cf. Borowska, 1975;Hayova, 2011), and BGS-18 (cf. ...
This paper reports on new, previously undescribed non-pollen palynomorphs (NPPs) of fungal origin preserved in moss polsters in a forest environment of a temperate zone. Modern NPPs were recovered from moss samples from 114 sites located in different types of forest ecosystems of Białowieża Forest, north-eastern Poland – a forest complex with a high degree of naturalness, similar to forests that covered large areas of Europe in the past.
98 types of fungal NPPs were identified, of which 20 morphotypes presented here are considered new, not previously described. Half of the new remains could be identified to species or genus level, thereby conferring ecological indicator value to them. Each new, determined NPP can be a useful tool in environmental reconstructions.
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... Aero-aquatic fungi have been classified based on conidial morphology as they show diverse morphological characteristics. The monographs and keys of Helicodendron Peyronel and Helicoon Morgan, both forming three-dimensionally helicoid (doliform) conidia, were provided by Goos et al. (1985Goos et al. ( , 1986, Zhao et al. (2007), and Goh and Kuo (2018), in which conidium size and color, width of conidial filament, and the number and direction of coils of a conidium were adopted as taxonomic characters. The globose, clathrate, or fan shaped conidium forming fungi including Dendro-Aquatic Aero-aquatic Terrestrial Sporulation ...
Aero-aquatic fungi compose an ecological group of saprophytes inhabiting the submerged decaying substrates in stagnant freshwater environment. They produce three-dimensional shaped, multi-cellular conidia, which float on water surface by holding air between conidial cells. Because the conidia show diverse morphology, genus and species level classification have been based on their features. They are mostly known as asexual morphs of Ascomycota or Basidiomycota. Recent phylogenetic study revealed the aero-aquatic fungi appeared mainly in the lineages of Leotiomycetes, Dothideomycetes, and Sordariomycetes. Furthermore, the phylogenetic tree showed the aero-aquatic fungi have polyphyletic origins and similar three-dimensional conidial morphology generated as a convergent evolution among different lineages of fungi by the selection pressure for inhabiting freshwater environment. Recent studies suggested the ancestors of the aero-aquatic fungi were terrestrial fungi.
... anceps and T. coronata). Tubeufia species are widely distributed in tropical and temperate regions, including freshwater and terrestrial habitats, occurring primarily on well-rotted wood (Barr 1979;Rossman 1987;Ho et al. 2002;Tsui and Berbee 2006;Tsui et al. 2007;Zhao et al. 2007;Boonmee et al. 2011Boonmee et al. , 2014Chaiwan et al. 2017;Dai et al. 2017;Doilom et al. 2017;Lu et al. 2017Lu et al. , 2018aLu et al. , 2018bLu et al. , 2022Lu et al. , 2023Tian et al. 2022). There are currently 56 accepted species in Tubeufia, as listed in Table 1. ...
... However, T. muriformis can be distinguished from X. helicominum with its branched conidiophores and larger conidia (23-25 × 11-15 μm vs. 14-16.5 × 5.5-6.5 µm;Zhao et al. 2007). Moreover, T. muriformis differs from other Tubeufia species in that it has muriform, curved conidia (Lu et al. 2018b). ...
... Tubeufia is the largest genus within the family Tubeufiaceae. Currently, this genus contains 59 species (Lu et al. 2018bRajeshkumar et al. 2019;Boonmee et al. 2021;Li et al. 2022;Tian et al. 2022), including the newly introduced species in this study, of which 29 are found in freshwater habitat, 24 in terrestrial habitats, and six from both freshwater and terrestrial habitats (Barr 1979;Rossman 1987;Ho et al. 2002;Tsui and Berbee 2006;Tsui et al. 2007;Zhao et al. 2007;Boonmee et al. 2011Boonmee et al. , 2014Chaiwan et al. 2017;Dai et al. 2017;Doilom et al. 2017;Lu et al. 2017Lu et al. , 2018bLu et al. , 2022Lu et al. , 2023Tian et al. 2022). Among them, 39 species produce a helicosporous conidial state. ...
During an investigation of helicosporous fungi in China, a total of seven helicosporous hyphomycetes were obtained from decaying wood in the southern region of the country. Based on phylogenetic analyses using a combined LSU, ITS, tef1α , and rpb2 sequence matrix, in conjunction with morphological comparisons, these taxa were classified within Tubeufia (Tubeufiaceae, Tubeufiales) and were recognized as three new species, viz. Tubeufia guttulata , T. hainanensis , and T. muriformis , as well as one new distribution record, viz. T. cocois . Evidence for these new taxa and the new record, descriptions, illustrations, notes, and phylogenetic evidence are provided for the newly collected helicosporous species.
... Based on the type species H. vegetum, Nees [1] established Helicosporium as one of the earliest described genera of helicosporous hyphomycetes. The majority of this group's species inhabit subtropical to tropical habitats [2][3][4][5][6][7][8][9][10][11]. Typically, they inhabit woody substrates in terrestrial and freshwater environments [3,[7][8][9][10]12]. ...
Helicosporous hyphomycetes is a group of filamentous fungi that shows promising application prospects in metabolizing bioactive natural compounds. During a study of helicosporous fungi in China, six new helicosporous taxa were collected and isolated from decaying wood in Guangxi Zhuang Autonomous Region, China. Morphological comparisons with multi-gene phylogenetic analyses revealed that these six taxa belong to Helicosporium (Tubeufiaceae, Tubeufiales), and they were recognized as three novel species and were named Helicosporium liuzhouense, H. multidentatum, and H. nanningense. Detailed descriptions and illustrations of the newly discovered taxa and comparisons with similar fungi are provided. In addition, a list and a key to accepted Helicosporium species are provided.
... Safagamyces marinus is phylogenetically distant from the other two asexual genera: Cirrenalia and Cucurbitinus by having straight or slightly curved, branched conidia that are brown in colour with sympodial conidial proliferation. Conidia in Cirrenalia macrocephala are helicoid, reddish fuscous with determinate conidiogenesis (Meyers and Moore 1960;Zhao et al. 2007). Cucurbitinus species have straight or slightly curved conidia with constricted septa with determinate conidiogenesis. ...
This article revises the documented diversity of known marine fungi from nine phyla, 33 classes, 107 orders, 273 families, 767 genera and 1898 species reported worldwide. A member of the Aphelidiomycota, Pseudaphelidium drebesii, is reported for the first time from the marine environment, on a diatom. Likewise, the phylum Mortierellomycota is listed following taxonomic changes, as are six subclasses: Chaetothyriomycetidae, Savoryellomycetidae, Sclerococcomycetidae, Agaricostilbomycetidae, Auriculariomycetidae and Aphelidiomycotina. Thirty-three orders and 105 family names with marine species are added to the checklist, along with 641 species in 228 genera, bringing the total to 1898. New additions of species added to the list of marine fungi are highlighted. Four new combinations are proposed: Stigmatodiscus mangrovei, Diaporthe krabiensis and Diaporthe xylocarpi, while the hyphomycete Humicola alopallonella is referred to the genus Halosphaeriopsis, as Halosphaeriopsis alopallonella.
... Helicosporous hyphomycetes are asexual fungi that produce various forms of coiled two-or three-dimensional hollow conidia, which is the most common asexual morph in the family Tubeufiaceae [4,[17][18][19][20][21]. The classification of helicosporous hyphomycetes has been studied for more than 200 years [22][23][24]. ...
... The classification of helicosporous hyphomycetes has been studied for more than 200 years [22][23][24]. These fungi are widely distributed in tropical and subtropical regions, mostly acting as saprobes on plant litter, rotten wood, and decaying twigs in freshwater and terrestrial habitats [4,20,21]. However, there have been rare reports of endophytic fungi with coiled conidia [25,26]. ...
Three helicosporous hyphomycete collections representing two species were obtained from rotting wood found in freshwater and terrestrial habitats in the Guizhou and Guangxi Provinces, China. A new genus Pseudotubeufia (Tubeufiaceae, Tubeufiales), comprising Ps. hyalospora sp. nov. and Ps. laxispora sp. nov., was introduced with morphological characteristic and molecular data. In addition, the molecular evidence showed that Helicomyces sp. (G.M. 2020-09-19.1), H. roseus (CBS: 102.76), and the new genus Pseudotubeufia clustered together with high support based on a multi-gene (LSU, ITS, tef1α, and rpb2) phylogenetic analysis. Detailed descriptions, illustrations, and notes of the three new collections are provided.
... Based on the type species H. vegetum, Nees [1] established Helicosporium as one of the earliest described genera of helicosporous hyphomycetes. The majority of this group's species inhabit subtropical to tropical habitats [2][3][4][5][6][7][8][9][10][11]. Typically, they inhabit woody substrates in terrestrial and freshwater environments [3,[7][8][9][10]12]. ...
Helicosporous hyphomycetes is a class of filamentous fungi that shows promising application prospects in metabolizing bioactive natural compounds. During a study of helicosporous fungi in China, six new helicosporous taxa were collected and isolated from decaying wood in Guangxi Zhuang Autonomous Region, China. Morphological comparisons with multi-gene phylogenetic analyses revealed that these six taxa belong to Helicosporium (Tubeufiaceae, Tubeufiales), and they can be recognized as three novel species, named Helicosporium liuzhouense, H. multidentatum and H. nanningense. Detailed descriptions and illustrations of the newly discovered taxa and comparisons with similar fungi are provided. In addition, a list and a key to accepted Helicosporium species are provided.
