scholarly journals Additions to Occultibambusaceae (Pleosporales, Dothideomycetes): Unrevealing Palmicolous Fungi in China

Diversity ◽  
2021 ◽  
Vol 13 (11) ◽  
pp. 516
Author(s):  
Xian-Dong Yu ◽  
Sheng-Nan Zhang ◽  
Ratchadawan Cheewangkoon ◽  
Jian-Kui Liu

During a survey of microfungi associated with palms from karst formations, three novel ascomycetes were found from decaying petioles of Trachycarpus fortunei (Arecaceae) in Guizhou, China. Multi-gene phylogenetic analyses based on a combined SSU, ITS, LSU, RPB2 and TEF1α sequence data showed that these collections were affiliated to Brunneofusispora and Neooccultibambusa in the family Occultibambusaceae. A new species Brunneofusispora inclinatiostiola is introduced. It is phylogenetically close to B. clematidis but represents a distinct lineage. Morphologically, it differs from the latter in having immersed ascomata with eccentric, periphysate ostiole and smaller ascospores. Morpho-phylogenetic evidence also revealed two new Neooccultibambusa species, N. kaiyangensis and N. trachycarpi. Together with the generic type N. chiangraiensis, they formed a distinct lineage within the genus Neooccultibambusa. Three novel palmicolous fungi of Occultibambusaceae are described, illustrated and notes on their identification are provided. The ecological significance of the new taxa and the phylogenetic relationship of genera in Occultibambusaceae is discussed.

MycoKeys ◽  
2019 ◽  
Vol 47 ◽  
pp. 53-74 ◽  
Author(s):  
Yuan-Pin Xiao ◽  
Sinang Hongsanan ◽  
Kevin D. Hyde ◽  
Siraprapa Brooks ◽  
Ning Xie ◽  
...  

Ophiocordyceps is entomopathogenic and the largest studied genus in the family Ophiocordycipitaceae. Many species in this genus have been reported from Thailand. The first new species introduced in this paper, Ophiocordycepsglobiceps, differs from other species based on its smaller perithecia, shorter asci and secondary ascospores and additionally, in parasitising fly species. Phylogenetic analyses of combined LSU, SSU, ITS, TEF1α and RPB1 sequence data indicate that O.globiceps forms a distinct lineage within the genus Ophiocordyceps as a new species. The second new species, Ophiocordycepssporangifera, is distinguished from closely related species by infecting larvae of insects (Coleoptera, Elateridae) and by producing white to brown sporangia, longer secondary synnemata and shorter primary and secondary phialides. We introduce O.sporangifera based on its significant morphological differences from other similar species, even though phylogenetic distinction is not well-supported.


Zootaxa ◽  
2017 ◽  
Vol 4254 (5) ◽  
pp. 537 ◽  
Author(s):  
CHIA-HSUAN WEI ◽  
SHEN-HORN YEN

The Epicopeiidae is a small geometroid family distributed in the East Palaearctic and Oriental regions. It exhibits high morphological diversity in body size and wing shape, while their wing patterns involve in various complex mimicry rings. In the present study, we attempted to describe a new genus, and a new species from Vietnam, with comments on two assumed congeneric novel species from China and India. To address its phylogenetic affinity, we reconstructed the phylogeny of the family by using sequence data of COI, EF-1α, and 28S gene regions obtained from seven genera of Epicopeiidae with Pseudobiston pinratanai as the outgroup. We also compared the morphology of the new taxon to other epicopeiid genera to affirm its taxonomic status. The results suggest that the undescribed taxon deserve a new genus, namely Mimaporia gen. n. The species from Vietnam, Mimaporia hmong sp. n., is described as new to science. Under different tree building strategies, the new genus is the sister group of either Chatamla Moore, 1881 or Parabraxas Leech, 1897. The morphological evidence, which was not included in phylogenetic analyses, however, suggests its potential affinity with Burmeia Minet, 2003. This study also provides the first, although preliminary, molecular phylogeny of the family on which the revised systematics and interpretation of character evolution can be based. 


Phytotaxa ◽  
2019 ◽  
Vol 416 (1) ◽  
pp. 79-87 ◽  
Author(s):  
YAO FENG ◽  
SHENG-NAN ZHANG ◽  
ZUO-YI LIU

An Ascomycetous species was found from decaying woody stems in Guizhou, China. Morphologically, the fungus can be assigned well in Tremateia in having immersed ascomata, cellular pseudoparaphyses and muriform ascospores, but it differs from other species in having the 3–7 transverse septa ascospores surrounded by a gelatinous sheath. Phylogenetic analyses based on a concatenated dataset of ITS, LSU, SSUand TEF1-α sequence data indicated that the fungus belongs to the genus Tremateia, Didymosphaeriaceae, four taxa formed a monophyletic clade and represent the genus Tremateia with well supported. The new collection formed a distinct lineage and can be recognized as a new species. Therefore, a new species Tremateia murispora is introduced with detailed description and illustration, the notes on its morphologically and phylogenetically related taxa is provided.


Phytotaxa ◽  
2014 ◽  
Vol 176 (1) ◽  
pp. 102 ◽  
Author(s):  
HIRAN A. ARIYAWANSA ◽  
ERIO CAMPORESI ◽  
KASUN M. THAMBUGALA ◽  
AUSANA MAPOOK ◽  
JI-CHUAN KANG ◽  
...  

Didymosphaeriaceae is a ubiquitous fungal family that is reported to include saprobic, endophytic and pathogenic species associated with a wide variety of substrates. The family is characterized by 1-septate ascospores and trabeculate pseudoparaphyses, mainly anastomosing above the asci. In recent treatments Appendispora, Didymosphaeria, Roussoella, Phaeodothis and Verruculina were placed in the family. The aim of the present study is to delineate phylogenetic lineages within Didymosphaeriaceae and allied genera. A new species, Didymosphaeria rubi-ulmifolii, was isolated and identified based on morphological characters and phylogenetic analyses of partial 18S nrDNA and 28S nrDNA nucleotide sequence data. Didymosphaeria rubi-ulmifolii clustered with Montagnulaceae as a separate genus, while two putative strains (HKUCC 5834 and CMW 22186) of D. futilis from GenBank clustered with Cucurbitariaceae and Didymellaceae, respectively. The new species is characterized by immersed to slightly erumpent ascomata immersed under a clypeus, a peridium with compressed cells of textura intricata, long trabeculate pseudoparaphyses, anastomosing mostly above the asci and brown, 1-septate ascospores with granulate ornamentation. Phylogenetic analysis in combination with morphology and a review of literature show that Appendispora, Phaeodothis, Roussoella and Verruculina should be excluded from the family. Phaeodothis belongs in Montagnulaceae, Verruculina in Testudinaceae, while Appendispora and Roussoella belong in Roussoellaceae. The position of Didymosphaeriaceae as a distinct family, based on 1-septate ascospores and trabeculate pseudoparaphyses, mainly anastomosing above the asci is doubtful. Fresh collections of more Didymosphaeria strains are needed for epitypification and to obtain sequence data to establish if this family can be maintained.


Phytotaxa ◽  
2016 ◽  
Vol 253 (1) ◽  
pp. 71 ◽  
Author(s):  
ZONG-LONG LUO ◽  
ALI H. BAHKALI ◽  
XIAO-YING LIU ◽  
RUNGTIWA PHOOKAMSAK ◽  
YONG-CHANG ZHAO ◽  
...  

Poaceascoma aquaticum sp. nov. (Lentitheciaceae) was found on decaying bamboo submerged in a freshwater stream in northern Thailand. The new species is introduced based on its unique morphology and phylogeny. Poaceascoma aquaticum is characterized by black, semi-immersed or erumpent, papillate ascomata, bitunicate, cylindrical to cylindric-clavate, short pedicellate asci and filiform, pale brown to brown ascospores. Phylogenetic analyses of combined LSU, SSU and RPB2 sequence data shows that Poaceascoma aquaticum forms a robust clade with P. helicoides in the family Lentitheciaceae (Pleosporales). Poaceascoma aquaticum is described, illustrated and compared with related taxa.


2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Hui-Xia Chen ◽  
Xiao-Hong Gu ◽  
Xue-Feng Ni ◽  
Liang Li

Abstract Background Nematodes of the family Cosmocercidae (Ascaridomorpha: Cosmocercoidea) are mainly parasitic in the digestive tract of various amphibians and reptiles worldwide. However, our knowledge of the molecular phylogeny of the Cosmocercidae is still far from comprehensive. The phylogenetic relationships between Cosmocercidae and the other two families, Atractidae and Kathlaniidae, in the superfamily Cosmocercoidea are still under debate. Moreover, the systematic position of some genera within Cosmocercidae remains unclear. Methods Nematodes collected from Polypedates megacephalus (Hallowell) (Anura: Rhacophoridae) were identified using morphological (light and scanning electron microscopy) and molecular methods [sequencing the small ribosomal DNA (18S), internal transcribed spacer 1 (ITS-1), large ribosomal DNA (28S) and mitochondrial cytochrome c oxidase subunit 1 (cox1) target regions]. Phylogenetic analyses of cosmocercoid nematodes using 18S + 28S sequence data were performed to clarify the phylogenetic relationships of the Cosmocercidae, Atractidae and Kathlaniidae in the Cosmocercoidea and the systematic position of the genus Aplectana in Cosmocercidae. Results Morphological and genetic evidence supported the hypothesis that the nematode specimens collected from P. megacephalus represent a new species of Aplectana (Cosmocercoidea: Cosmocercidae). Our phylogenetic results revealed that the Cosmocercidae is a monophyletic group, but not the basal group in Cosmocercoidea as in the traditional classification. The Kathlaniidae is a paraphyletic group because the subfamily Cruziinae within Kathlaniidae (including only the genus Cruzia) formed a seperate lineage. Phylogenetic analyses also showed that the genus Aplectana has a closer relationship to the genus Cosmocerca in Cosmocercidae. Conclusions Our phylogenetic results suggested that the subfamily Cruziinae should be moved from the hitherto-defined family Kathlaniidae and elevated as a separate family, and the genus Cosmocerca is closely related to the genus Aplectana in the family Cosmocercidae. The present study provided a basic molecular phylogenetic framework for the superfamily Cosmocercoidea based on 18S + 28S sequence data for the first time to our knowledge. Moreover, a new species, A. xishuangbannaensis n. sp., was described using integrative approach. Graphical abstract


2019 ◽  
Vol 94 ◽  
Author(s):  
I. Blasco-Costa ◽  
K. Seppälä ◽  
F. Feijen ◽  
N. Zajac ◽  
K. Klappert ◽  
...  

Abstract The adult and metacercaria life stages of a new species of the microphallid genus Atriophallophorus Deblock & Rosé, 1964 are described from specimens collected at Lake Alexandrina (South Island, New Zealand). In addition to molecular analyses of ribosomal and mitochondrial genes, metacercariae of Atriophallophorus winterbourni n. sp. from the snail host Potamopyrgus antipodarum (Gray) were grown in vitro to characterize internal and external morphology of adults using light and scanning electron microscopy and histological techniques. Atriophallophorus winterbourni n. sp. is readily distinguishable from Atriophallophorus coxiellae Smith, 1973 by having a different structure of the prostatic chamber, sub-circular and dorsal to genital atrium, rather than cylindrical, fibrous, elongate and placed between the seminal vesicle and the genital atrium. The new species is most similar to Atriophallophorus minutus (Price, 1934) with regards to the prostatic chamber and the morphometric data, but possesses elongate-oval testes and subtriangular ovary rather than oval and transversely oval in A. minutus. Phylogenetic analyses including sequence data for A. winterbourni n. sp. suggested a congeneric relationship of the new species to a hitherto undescribed metacercariae reported from Australia, both forming a strongly supported clade closely related to Microphallus and Levinseniella. In addition, we provide an amended diagnosis of Atriophallophorus to accommodate the new species and confirm the sinistral interruption of the outer rim of the ventral sucker caused by the protrusion of the dextral parietal atrial scale at the base of the phallus.


2021 ◽  
Author(s):  
Hui-Xia Chen ◽  
Xiao-Hong Gu ◽  
Xue-Feng Ni ◽  
Liang Li

Abstract Background Nematodes of the family Cosmocercidae (Ascaridida: Cosmocercoidea) are mainly parasitic in the digest tract of various amphibians and reptiles worldwide. However, our knowledge of the molecular phylogeny of the Cosmocercidae is still far from comprehensive. The phylogenetic relationships of the Cosmocercidae and the other two families Atractidae and Kathlaniidae in the superfamily Cosmocercoidea, are still under debate. Moreover, the systematic position of some genera in Cosmocercidae remains unclear. Methods Nematodes collected from Polypedates megacephalus (Hallowell) (Anura: Rhacophoridae) were identified using morphological methods (light and scanning electron microscopy) and molecular approaches [sequencing and analyzing the small ribosomal DNA (18S), internal transcribed spacer 1 (ITS-1), large ribosomal DNA (28S) and mitochondrial cytochrome c oxidase subunit 1 (cox1) target regions]. Phylogenetic analyses of cosmocercoid nematodes using 18S + 28S sequence data were performed to clarify the phylogenetic relationships of the Cosmocercidae, Atractidae and Kathlaniidae in the Cosmocercoidea, and the systematic position of the genus Aplectana in Cosmocercidae. Results Morphological and genetic evidence supported that the nematode specimens collected from P. megacephalus represents a new species of Aplectana (Cosmocercoidea: Cosmocercidae). Our phylogenetic results revealed that the Cosmocercidae is a monophyletic group, but not the basal group in Cosmocercoidea as the traditional classification. The Kathlaniidae is a paraphyletic group, and the subfamily Cruziinae (including only the genus Cruzia) formed a sister relationship to the Cosmocercidae. Phylogenetic analyses also showed that the genus Aplectana has closer relationship to the genus Cosmocerca in the Cosmocercidae. Conclusions Our molecular phylogenetic results supported that the subfamily Cruziinae should be moved out from the hitherto-defined family Kathlaniidae and elevated to a separate family, and the genus Cosmocerca has closer relationship to the genus Aplectana in the family Cosmocercidae, Our present study provided the basic molecular phylogenetic framework for the superfamily Cosmocercoidea based on 18S + 28S sequence data for the first time. Moreover, a new species of Aplectana, A. xishuangbannaensis n. sp., was described using an integrative approach.


Phytotaxa ◽  
2018 ◽  
Vol 379 (2) ◽  
pp. 169 ◽  
Author(s):  
JIN-FENG ZHANG ◽  
JIAN-KUI (JACK) LIU ◽  
HAI-YAN RAN ◽  
KITIPHONG KHONGPHINITBUNJONG ◽  
ZUO-YI LIU

During fungal diversity studies on ascomycetes from karst landforms in southwest China, two taxa were collected and morphologically identified as Lophiotrema species based on their immersed ascomata, crest-like ostioles, cylindrical, short pedicellate asci and fusiform ascospores. Multi-gene phylogenetic analyses based on a combined LSU-TEF1-α-SSU-ITS-RPB2 sequence data also confirmed their phylogenetic placement within the family Lophiotremataceae, where they clustered with reported Lophiotrema species with strong statistical support. Lophiotrema hydei sp. nov. is introduced and the species forms a distinct lineage which is sister to L. neohysterioides. Morphologically, Lophiotrema hydei differs from L. neohysterioides by its unique appearance of ascomata and different ascospore ornamentation. Another species is identified as L. neohysterioides based on morphological characteristics and phylogenetic data, and it is reported as the new record from China.


Phytotaxa ◽  
2021 ◽  
Vol 498 (3) ◽  
pp. 177-185
Author(s):  
MILAN ŠPETÍK ◽  
AKILA BERRAF-TEBBAL ◽  
ROBERT POKLUDA ◽  
ALEŠ EICHMEIER

During the investigation of fungal microbiome associated with boxwood in the Czech Republic, samples from Buxus sempervirens L. (Buxaceae) plants were collected and used for isolation. Two fungal strains were proposed as a new species Pyrenochaetopsis kuksensis based on morphology as well as phylogenetic analyses of ITS, LSU, rpb2, and tub2 sequence data. Detailed descriptions and phylogenetic relationships of the new taxon are provided.


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