New species of Sporoschisma (Chaetosphaeriaceae) from aquatic habitats in Thailand

Phytotaxa ◽  
2016 ◽  
Vol 289 (2) ◽  
pp. 147 ◽  
Author(s):  
JING YANG ◽  
JIAN-KUI LIU ◽  
KEVIN D. HYDE ◽  
D. JAYARAMA BHAT ◽  
E. B.GARETH JONES ◽  
...  

Collections of submerged wood in streams in Prachuap Khiri Khan Province, Thailand yielded three sporoschisma-like taxa. Morphological examination and phylogenetic analysis of LSU sequence data support the separation of two isolates as new species (S. palauense and S. longicatenatum) and the other as collection of S. hemipsila. The sexual morph (Melanochaeta) is again linked to the asexual genus Sporoschisma by molecular data. The new species are introduced with descriptions and illustrations and compared with the most similar species.

Phytotaxa ◽  
2018 ◽  
Vol 338 (3) ◽  
pp. 285
Author(s):  
JIAN-KUI LIU ◽  
ZONG-LONG LUO ◽  
NING-GUO LIU ◽  
RATCHADAWAN CHEEWANGKOON ◽  
CHAIWAT TO-ANUN

Two new hyphomycetes, Paradictyoarthrinium aquatica and P. hydei were collected and isolated from submerged wood and decaying wood in China and Thailand respectively. Morphologically, they line well with Paradictyoarthrinium in having superficial, gregarious, black, powdery fruiting bodies, macronematous conidiophores with unevenly dictyoseptate, muriform, subglobose to ellipsoidal dark brown conidia, but they differ from the other species in having short conidiophores. Phylogenetic analysis of combined LSU, ITS and RPB2 sequence data showed that six taxa of Paradictyoarthriniaceae, including the two new species, form a monotypic clade among the phylogenetically close families in Pleosporales with good support. Six isolates of Paradictyoarthrinium formed four distinct clades and represent four different species. Detailed descriptions and illustrations of the new species are provided, as well as the comparisons with related taxa.


Phytotaxa ◽  
2016 ◽  
Vol 270 (3) ◽  
pp. 182 ◽  
Author(s):  
ZONG-LONG LUO ◽  
JING YANG ◽  
JIAN-KUI LIU ◽  
HONG-YAN SU ◽  
ALI H. BAHKALI ◽  
...  

Helicascus species from submerged wood in aquatic habitats in northern Thailand were studied based on morphology and analysis of DNA sequence data. Descriptions and illustrations of H. elaterascus and a new species H. chiangraiensis are provided.  H. chiangraiensis is characterized by unilocular ascostromata, fissitunicate asci with a long, narrow and coiled endoascus, ascospores with 2–4 large refractive guttules. The phylogenetic analysis based on combined ITS, LSU and SSU sequence data placed the species in Morosphaeriaceae (Pleosporales).


Phytotaxa ◽  
2016 ◽  
Vol 253 (3) ◽  
pp. 179 ◽  
Author(s):  
DAN ZHU ◽  
ZONG-LONG LUO ◽  
DARBHE JAYARAMA BAHT ◽  
ERIC.H.C. MCKENZIE ◽  
ALI H. BAHKALI ◽  
...  

Helminthosporium species from submerged wood in streams in Yunnan Province, China were studied based on morphology and DNA sequence data. Descriptions and illustrations of Helminthosporium velutinum and a new species H. aquaticum are provided. A combined phylogenetic tree, based on SSU, ITS and LSU sequence data, place the species in Massarinaceae, Pleosporales. The polyphyletic nature of Helminthosporium species within Massarinaceae is shown based on ITS sequence data available in GenBank.


Phytotaxa ◽  
2018 ◽  
Vol 362 (2) ◽  
pp. 187 ◽  
Author(s):  
MING-JIE WEI ◽  
HUANG ZHANG ◽  
WEI DONG ◽  
SARANYAPHAT BOONMEE ◽  
DI ZHANG

During our ongoing investigations of freshwater fungi in Thailand, three new chaetosphaeriaceous species, Chloridium aquaticum, Chloridium aseptatum and Dictyochaeta aquatica, were found on submerged wood in freshwater habitats. To determine their placement, a phylogenetic analysis of combined LSU and ITS sequence data was performed. Chloridium aquaticum is the only species having proliferating conidiophores and holoblastic conidiogenous cell in Chloridium. A detailed description and illustrations of the taxa is provided and phylogenetic relationship between the new taxa and their relatives are compared and discussed.


Phytotaxa ◽  
2013 ◽  
Vol 105 (1) ◽  
pp. 11 ◽  
Author(s):  
HIRAN A. ARIYAWANSA ◽  
SAJEEWA S.N. MAHARACHCHIKUMBURA ◽  
SAMANTHA C.KARUNARATHNE ◽  
EKACHAI CHUKEATIROTE ◽  
ALI H. BAHKALI ◽  
...  

Deniquelata barringtoniae gen. et sp. nov. (Montagnulaceae) forms numerous ascomata on distinct zonate leaf spots of Barringtonia asiatica (Lecythidaceae). We isolated this taxon and sequenced the 18S and 28S nrDNA. The result of phylogenetic analysis based on 18S and 28S nrDNA sequence data indicate that the genus belongs in the family Montagnulaceae, Dothideomycetes, Ascomycota. The ascomata are immersed, dark brown to black, with bitunicate asci and brown, muriform ascospores. Deniquelata is distinguished from the other genera in Montagnulaceae based on its short, broad, furcate and pedicellate asci, verruculose ascospores with short narrow pseudoparaphyses with parasitic naturee and this is also supported by molecular data. A new genus and species is therefore introduced to accommodate this taxon. We used isolates of this species to show via pathogenicity testing that the taxon is able to cause leaf spots when leaves are pin pricked.


2021 ◽  
Author(s):  
Hyun Lee ◽  
Komsit Wissitrassameewong ◽  
Myung Soo Park ◽  
Jonathan J. Fong ◽  
Annemieke Verbeken ◽  
...  

Abstract Lactifluus (Pers.) Roussel is an ectomycorrhizal genus that was recently recognized to be distinct from the genus Lactarius. To date, 216 Lactifluus species have been reported worldwide. Misidentification of Lactifluus species is common because of intraspecific morphological variation, cryptic diversity, and the limited number of taxonomic keys available. Molecular data are indispensable for species delimitation; a multilocus phylogenetic analysis showed that most Asian Lactifluus species are not conspecific with morphologically similar species present on other continents. In particular, Korea has misused European and North American Lactifluus names. In this study, we evaluated the taxonomy of Lactifluus in Korea using both morphological and multilocus molecular (ITS, nrLSU, rpb1, and rpb2) data. We examined 199 Lactifluus specimens collected between 1980 and 2016, and a total of 24 species across the four Lactifluus subgenera were identified. All Korean species are distinct and clearly separated from European and North American species. Five taxa corresponded to previously described species from Asia and the remaining 19 taxa are confirmed as new species. Herein, we provide keys to the Korean Lactifluus species within their subgenera, molecular phylogenies, a summary of diversity, and detailed description of the new species.


Phytotaxa ◽  
2014 ◽  
Vol 176 (1) ◽  
pp. 174 ◽  
Author(s):  
HUI YANG ◽  
HIRAN A. ARIYAWANSA ◽  
HAI-XIA WU ◽  
KEVIN D. HYDE

Leptoxyphium is a relatively poorly known genus of sooty moulds in Capnodiaceae (Dothideomycetes). This paper introduces one new species of Leptoxyphium, L. glochidion and the first record of L. kurandae for China. L. glochidion is introduced as a new species based on morphology and molecular data and is compared with related taxa. Descriptions, illustrations and notes are provided for the two species, which are analyzed by ITS, LSU and SSU sequence data. The phylogenetic analysis shows that the two species cluster in Leptoxyphium (Capnodiaceae). L. glochidion separates from other species of the genus, while L. kurandae clustered with the type strain


Phytotaxa ◽  
2017 ◽  
Vol 314 (1) ◽  
pp. 55 ◽  
Author(s):  
RUVISHIKA S. JAYAWARDENA ◽  
ERIO CAMPORESI ◽  
ABDALLAH M. ELGORBAN ◽  
ALI H. BAHKALI ◽  
JIYE YAN ◽  
...  

Colletotrichum sonchicola, sp. nov. from Sonchus sp. (dandelion tribe) in Forlì-Cesena Province, Italy, is introduced using morphological and molecular data. Combined phylogenetic analysis of ITS, GAPDH, CHS, ACT and TUB2 sequence data demonstrate that C. sonchicola is a distinct species within the dematium species complex. The new species is illustrated and compared with related taxa. This provides the first record of a Colletotrichum species from the genus Sonchus.


2021 ◽  
Author(s):  
Chuan Yu ◽  
Dongsheng Zhang ◽  
Ruiyan Zhang ◽  
Chunsheng Wang

Holothurians of the family Psychropotidae are widely distributed, but remain least studied deep-sea holothurians. On an expedition in the Western Pacific, six psychropotid specimens were collected by the Jiaolong human operated vehicle (HOV). Through morphological examination, four of them were identified as a new species, Benthodytes jiaolongi sp. nov., which was characterized as having minute papillae, narrow brims, and terminal anus; the ossicles were either rods or primary crosses. The remaining two specimens were identified as Psychropotes verrucicaudatus Xiao, Gong, Kou & Li, 2019, which was first recorded at the Kyushu-Palau Ridge. The phylogenetic analysis confirmed the classification status of B. jiaolongi and P. verrucicaudatus, and indicated a paraphyletic relationship within the genus Benthodytes. The new species clustered with Benthodytes sanguinolenta and was separated from the clade containing the other Benthodytes species.


Webbia ◽  
2021 ◽  
Vol 76 (2) ◽  
pp. 195-202
Author(s):  
Propa Joy R. Santor ◽  
Duane Dominic B. Santiago ◽  
Conrado Joshua V. Mataga ◽  
Elyjha S. Gabriel ◽  
Grecebio Jonathan D. Alejandro

Hedyotis hamiguitanensis, from Mt. Hamiguitan, Davao Oriental, Philippines, is described, illustrated, and compared with two similar species, H. whiteheadii and H. schlechteri. This species is distinguished from congeneric Philippine species by its 5–12 cm long, compound, umbellate inflorescences, pendulous flowers, lanceolate to oblanceolate, thick, scabrid leaf blades with revolute margins. Its phylogenetic systematic position within the tribe Spermococeae is determined with a phylogenetic analysis using chloroplast (rps16, petD) and nuclear ribosomal (ITS, ETS) nucleotide sequence data.


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