Identification of the new species Comatricha macrospora and two other recently recorded species of Comatricha from China

Phytotaxa ◽  
2018 ◽  
Vol 374 (1) ◽  
pp. 71 ◽  
Author(s):  
BO ZHANG ◽  
SAIYU WANG ◽  
XIAOQI XU ◽  
TIANHAO LI ◽  
DAN DAI ◽  
...  
Keyword(s):  
New Species ◽  
Ribosomal Rna ◽  
Phylogenetic Analyses ◽  
Small Subunit ◽  
Jiangxi Province ◽  
Scanning Electron Micrographs ◽  
Rna Sequences ◽  
Ribosomal Rna Sequences ◽  
First Time ◽  
A New Species

A new species (Comatricha macrospora) has been collected from the Changbai Mountain National Nature Reserve, Jilin Province, China. Comatricha macrospora has smaller sporocarps and larger spores (about 15–18 μm in diameter) than other species of Comatricha as well as a persistent peridium at the base of the sporotheca. In addition, two newly recorded species of Comatricha—C. tenerrima (M.A. Curtis) G. Lister and C. afroalpina Rammeloo—have been documented in China for the first time, based on material collected from northeast China and the campus of East China Normal University, Fuzhou City, Jiangxi Province. Comatricha tenerrima is characterised by fusiform long-stalked sporocarps and warted pinkish brown spores (about 7–8 μm in diameter)., whereas C. afroalpina occurs on rotting logs and has spores marked by larger warts with an irregular reticulation at their base. Descriptions and scanning electron micrographs for these members of the genus Comatricha are provided. Phylogenetic analyses, based on small subunit ribosomal RNA sequences (SSUrRNA) of Comatricha and related genera, were carried out using Bayesian inference. These analyses confirmed the placement of the new species in the genus Comatricha.

Chylorhabditis epuraeae n. gen., n. sp. (Rhabditida: Rhabditidae) isolated from Epuraea (Haptoncus) ocularis Fairmaire collected from sap on the bark of Ulmus parvifolia Jacq. in Kyoto, Japan

Nematology ◽  
2020 ◽  
pp. 1-15
Author(s):  
Natsumi Kanzaki ◽  
Keiko Hamaguchi ◽  
Yuko Takeuchi-Kaneko
Keyword(s):  
New Species ◽  
Ribosomal Rna ◽  
Phylogenetic Analyses ◽  
Small Subunit ◽  
18S Ribosomal Rna ◽  
Rna Sequence ◽  
Ulmus Parvifolia ◽  
Female Tail ◽  
Biological Characters ◽  
A New Species

Summary A new rhabditid entomophilic nematode was isolated from adult Epuraea (Haptoncus) ocularis collected from brown to light brown sap on the trunk of Ulmus parvifolia in Kyoto, Japan. The typological characters of the species, anteriorly opened peloderan bursa with nine bursal rays with the first, fifth, and eighth pairs directed dorsally, very long and two-part spicule with broad tip, and elongate conical female tail, do not fit the current nominal rhabditid genera. While phylogenetic analyses based on the near-full-length small subunit (18S) ribosomal RNA sequence tentatively suggest that the species is the sister of Buetschlinema, the typological and biological characters of the new species clearly differ from that genus, and so a new species is described herein as Chylorhabditis epuraeae n. gen., n. sp.

A new species of the genus Eudorylaimus Andrássy, 1959 (Nematoda: (Dorylaimida: Qudsianematidae) associated with Picea crassifolia in China

Zootaxa ◽  
2018 ◽  
Vol 4526 (4) ◽  
pp. 576
Author(s):  
WEN-JIA WU ◽  
CHUN-LING XU ◽  
DONG-WEI WANG ◽  
HUI XIE
Keyword(s):  
New Species ◽  
Rhizosphere Soil ◽  
Phylogenetic Analyses ◽  
Small Subunit ◽  
Neck Length ◽  
Picea Crassifolia ◽  
Body Diameter ◽  
Small Subunit Rdna ◽  
C Value ◽  
A New Species

A new species, Eudorylaimus piceae n. sp., extracted from rhizosphere soil of Picea crassifolia from Inner Mongolia, China was identified. The new species is characterized by these combined characters: body length of 1.03–1.27 mm; lip region distinctly offset; odontostyle 20–22 μm and 1.1–1.4 times the lip region diameter in length; odontophore 1.1–1.2 times the odontostyle length; basal expansion of pharynx occupying 42%–50.5% of the total neck length; genital system didelphic-amphidelphic; vulva transverse; vagina extending inwards 32%–43%; V value averaging more than 60; pars refringens vaginae with two trapezoidal sclerotizations and pars distalis vaginae weakly sclerotized; prerectum 72–107 μm long, 2.3–3.3 times the anal body diameter, and rectum 1–1.6 times the anal body diameter in length; tail conoid and bent ventrally, c’ value 1.5–1.8 and males unknown. Phylogenetic analyses based on sequences of 18S small subunit rDNA and the D2-D3 expansion region of 28S rDNA are presented. 

scholarly journals A new species of Hedruris (Nematoda: Hedruridae) from freshwater turtles, its life cycle and biogeographic distribution of the genus

2019 ◽  
Vol 94 ◽  
Author(s):  
E. Palumbo ◽  
A. Servián ◽  
R. Sánchez ◽  
J.I. Diaz
Keyword(s):  
New Species ◽  
Life Cycle ◽  
Small Subunit ◽  
Freshwater Turtles ◽  
Host Diversity ◽  
Equal Distance ◽  
First Time ◽  
Small Subunit Ribosomal Dna ◽  
A New Species ◽  
Preferred Hosts

Abstract We describe Hedruris dratini n. sp. (Nematoda, Hedruridae) from Hydromedusa tectifera and Phrynops hilarii in Argentina based on morphological and molecular characters. Also, we provide information about its life cycle. The new species differs from other species of the genus by possessing the excretory pore, nerve ring and deirids at equal distance from the anterior end. Additionally, H. dratini n. sp. has mammilated eggs and males possess nine pairs of caudal papillae. The subadults and adults of H. dratini n. sp and H. orestiae were characterized by sequencing the small subunit ribosomal DNA (18S). We present for the first time a life cycle of a species of Hedruris that includes an amphipod as intermediate host and a reptile as definitive host. Furthermore, we analysed the host and geographic distribution of all Hedruris species. Although the genus has a cosmopolitan distribution and parasitizes a great host diversity, the majority of species have a Gondwanian distribution, with amphibians being the preferred hosts.

scholarly journals Morphology, genetic characterization and molecular phylogeny of pinworm Skrjabinema longicaudatum n. sp. (Oxyurida: Oxyuridae) from the endangered Tibetan antelope Pantholops hodgsonii (Abel) (Artiodactyla: Bovidae)

2020 ◽  
Vol 13 (1) ◽  
Author(s):  
Yi-Fan Cao ◽  
Hui-Xia Chen ◽  
Yang Li ◽  
Dang-Wei Zhou ◽  
Shi-Long Chen ◽  
...  
Keyword(s):  
New Species ◽  
Ribosomal Dna ◽  
Dna Sequences ◽  
Sequence Data ◽  
Phylogenetic Analyses ◽  
Large Subunit ◽  
Small Subunit ◽  
Sister Relationship ◽  
Tibetan Antelope ◽  
A New Species

Abstract Background The Tibetan antelope Pantholops hodgsonii (Abel) (Artiodactyla: Bovidae) is an endangered species of mammal endemic to the Qinghai-Tibetan Plateau. Parasites and parasitic diseases are considered to be important threats in the conservation of the Tibetan antelope. However, our present knowledge of the composition of the parasites of the Tibetan antelope remains limited. Methods Large numbers of nematode parasites were collected from a dead Tibetan antelope. The morphology of these nematode specimens was observed using light and scanning electron microscopy. The nuclear and mitochondrial DNA sequences, i.e. small subunit ribosomal DNA (18S), large subunit ribosomal DNA (28S), internal transcribed spacer (ITS) and cytochrome c oxidase subunit 1 (cox1), were amplified and sequenced for molecular identification. Moreover, phylogenetic analyses were performed using maximum likelihood (ML) inference based on 28S and 18S + 28S + cox1 sequence data, respectively, in order to clarify the systematic status of these nematodes. Results Integrated morphological and genetic evidence reveals these nematode specimens to be a new species of pinworm Skrjabinema longicaudatum (Oxyurida: Oxyuridae). There was no intraspecific nucleotide variation between different individuals of S. longicaudatum n. sp. in the partial 18S, 28S, ITS and cox1 sequences. However, a high level of nucleotide divergence was revealed between the new species and its congeners in 28S (8.36%) and ITS (20.3–23.7%) regions, respectively. Molecular phylogenetic results suggest that the genus Skrjabinema should belong to the subfamily Oxyurinae (Oxyuroidea: Oxyuridae), instead of the subfamily Syphaciidae or Skrjabinemiinae in the traditional classification, as it formed a sister relationship to the genus Oxyuris. Conclusions A new species of pinworm Skrjabinema longicaudatum n. sp. (Oxyurida: Oxyuridae) is described. Skrjabinema longicaudatum n. sp. represents the first species of Oxyurida (pinworm) and the fourth nematode species reported from the Tibetan antelope. Our results contribute to the knowledge of the species diversity of parasites from the Tibetan antelope, and clarify the systematic position of the genus Skrjabinema.

scholarly journals Genetic diversity of the genus Terfezia (Pezizaceae, Pezizales): New species and new record from North Africa

Phytotaxa ◽  
2018 ◽  
Vol 334 (2) ◽  
pp. 183 ◽  
Author(s):  
Fatima El-Houaria ZITOUNI-HAOUAR ◽  
JUAN RAMÓN CARLAVILLA ◽  
GABRIEL MORENO ◽  
JOSÉ LUIS MANJÓN ◽  
ZOHRA FORTAS
Keyword(s):  
New Species ◽  
North Africa ◽  
Phylogenetic Analyses ◽  
Ribosomal Subunit ◽  
Morphological Characters ◽  
Phylogenetic Position ◽  
Unique Combination ◽  
Large Ribosomal Subunit ◽  
First Time ◽  
A New Species

Morphological and phylogenetic analyses of large ribosomal subunit (28S rDNA) and internal transcribed spacer (ITS rDNA) of Terfezia samples collected from several bioclimatic zones in Algeria and Spain revealed the presence of six distinct Terfezia species: T. arenaria, T. boudieri, T. claveryi; T. eliocrocae (reported here for the first time from North Africa), T. olbiensis, and a new species, T. crassiverrucosa sp. nov., proposed and described here, characterized by its phylogenetic position and unique combination of morphological characters. A discussion on the unresolved problems in the taxonomy of the spiny-spored Terfezia species is conducted after the present results.

Morphological and phylogenetic analyses reveal a new species of Fistulina (Fistulinaceae, Agaricales) from Australia

Phytotaxa ◽  
2019 ◽  
Vol 420 (3) ◽  
pp. 233-240
Author(s):  
YI-FEI SUN ◽  
SHUN LIU ◽  
BAO-KAI CUI
Keyword(s):  
New Species ◽  
Ribosomal Rna ◽  
Internal Transcribed Spacer ◽  
Phylogenetic Analyses ◽  
Large Subunit ◽  
Pore Surface ◽  
Ribosomal Rna Gene ◽  
Hyphal System ◽  
Cotton Blue ◽  
A New Species

A new species of Fistulina, F. tasmanica sp. nov., is described and illustrated from Tasmania in Australia. Fistulina tasmanica is distinguished by its pileate and fleshy basidiomata with rose pore surface, fibrous context, separated tubes with small pores (6–7 per mm), a monomitic hyphal system with only clamped generative hyphae, subellipsoid to ellipsoid basidiospores (5.4–6 × 3.4–4 μm) which are negative in Melzer’s reagent and cotton blue. Phylogenetic analyses inferred from the internal transcribed spacer regions (ITS) and the large subunit of nuclear ribosomal RNA gene (nLSU) sequences also confirmed that F. tasmanica is a new member within Fistulina.

A new species of Micarea (Pilocarpaceae) from Madeira growing on Usnea

2014 ◽  
Vol 46 (3) ◽  
pp. 295-301 ◽  
Author(s):  
Pieter P. G. VAN DEN BOOM ◽  
Damien ERTZ
Keyword(s):  
New Species ◽  
Phylogenetic Analyses ◽  
First Time ◽  
A New Species

AbstractThe new species Micarea usneae is described from Madeira. It has been found at two localities where it grew on epiphytic Usnea thalli. Micarea usneae is distinguished by a very thin pale brownish thallus, pallid to greyish black or bluish subglobose apothecia of 0·1–0·3 mm diameter, very narrow (1·5–2·5 µm) ascospores, black pycnidia and strongly curved to sigmoid macroconidia. Phylogenetic analyses using mtSSU sequences place the new species in the Micarea peliocarpa group. Catillaria usneicola and Cladonia parasitica are recorded for the first time from Madeira. A key to the lichenicolous species on Usnea in Macaronesia is provided.

Pseudohydnum brunneiceps (Auriculariales, Basidiomycota), a new species from Central China

Phytotaxa ◽  
2020 ◽  
Vol 441 (1) ◽  
pp. 87-94
Author(s):  
YAN-LIU CHEN ◽  
MING-SHENG SU ◽  
LIN-PING ZHANG ◽  
QIN ZOU ◽  
FEI WU ◽  
...  
Keyword(s):  
New Species ◽  
Molecular Phylogeny ◽  
Dna Sequences ◽  
Internal Transcribed Spacer ◽  
Phylogenetic Analyses ◽  
Central China ◽  
Jiangxi Province ◽  
Line Drawings ◽  
A New Species ◽  
Representative Samples

Pseudohydnum brunneiceps is described as a new species from Jiangxi Province, central China. Morphologically, it is characterized by a gelatinous basidiocarps, pilei pale yellowish brown, dark reddish brown to blackish velutinate, spines conical and white, and basidiospores globose to broadly ellipsoidal. Phylogenetic analyses of DNA sequences from partial 28S region and internal transcribed spacer (ITS) also confirm that P. brunneiceps forms an independent lineage within Pseudohydnum. A description, photographs of the fresh basidiomata and line-drawings of the microstructures are provided. In addition, the previous records of P. gelatinosum in China should be re-evaluated by more representative samples by molecular phylogeny.

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