Description of Backusella constricta sp. nov. (Mucorales, ex Zygomycota) from the Brazilian Atlantic Rainforest, including a key to species of Backusella

Phytotaxa ◽  
2016 ◽  
Vol 289 (1) ◽  
pp. 59 ◽  
Author(s):  
DIOGO X. LIMA ◽  
KERSTIN VOIGT ◽  
CARLOS A.F. DE SOUZA ◽  
RAFAEL J.V. DE OLIVEIRA ◽  
CRISTINA M. SOUZA-MOTTA ◽  
...  
Keyword(s):  
New Species ◽  
Phylogenetic Analyses ◽  
Molecular Data ◽  
Atlantic Rainforest ◽  
Lsu Rdna ◽  
Key To Species ◽  
Simultaneous Production ◽  
Rdna Sequences ◽  
A New Species ◽  
Brazilian Atlantic Rainforest

The Backusella genus comprises mucoralean saprobes that inhabit in mainly soil and form transitorily curved (when young, erect at maturity) sporangiophores arising directly from the substratum, with simultaneous production of both sporangia and sporangiola. During a study of Mucorales in soil from an Atlantic Rainforest in Pernambuco, Brazil, one specimen of Backusella was isolated and characterized based on morphological, physiological and molecular data (ITS1-5.8S-ITS2 and LSU rDNA sequences). The phylogenetic analyses of the isolate revealed that it belongs to the Backusellaceae and is closely related to species of Backusella. The specimen grew better at 25ºC, with no development at 40ºC, and presented conical and cylindrical columellae possessing a central constriction as well as subglobose sporangiospores 7.5–15 × 5.5–10 µm. Based on the evidences of the analyzed datasets, a new species of Backusella is proposed and a taxonomic key for the species of this genus is provided.

DESCRIPTION OF MUCOR PERNAMBUCOENSIS (MUCORALES, MUCOROMYCOTA), A NEW SPECIES ISOLATED FROM THE BRAZILIAN UPLAND RAINFOREST

Phytotaxa ◽  
2018 ◽  
Vol 350 (3) ◽  
pp. 274 ◽  
Author(s):  
CATARINA L. F. DE LIMA ◽  
DIOGO X. LIMA ◽  
CARLOS A. F. DE SOUZA ◽  
RAFAEL J. V. DE OLIVEIRA ◽  
INGRID B. CAVALCANTI ◽  
...  
Keyword(s):  
New Species ◽  
Molecular Data ◽  
Lsu Rdna ◽  
Rdna Sequences ◽  
A New Species

The Mucor genus mostly comprises saprobe specimens which are commonly isolated from herbivore dung, fruit and soil. Morphologically, Mucor specimens produce simple or branched sporangiophores without basal rhizoids and non-apophysate sporangia. During a survey of Mucorales in soil from an upland rainforest area in Pernambuco, Brazil, one specimen of Mucor was isolated and characterized based on morphological, physiological and molecular data (ITS1-5.8S-ITS2 and LSU rDNA sequences). The specimen is characterized by producing strongly sympodially branched sporangiophores and sporangiospores which can contain one or more granules at each end. The columellae are frequently globose or obovoid, some ovoid or cylindrical with a truncate base, rarely piriform.  It grew better at 25ºC, with no development at 35ºC. Based on the evidence of the analyzed datasets, a new species of Mucor is proposed.

scholarly journals A new species of Cryptomonas (Cryptophyceae) from the Western Urals (Russia)

2020 ◽  
Author(s):  
Nikita A. Martynenko ◽  
Evgeniy S. Gusev ◽  
Pavel V. Kulizin ◽  
Elena E. Guseva ◽  
Kevin McCartney ◽  
...  
Keyword(s):  
New Species ◽  
Molecular Data ◽  
Lsu Rdna ◽  
Nuclear Rdna ◽  
Ural Mountains ◽  
Rdna Its2 ◽  
Rdna Sequences ◽  
Compensatory Base Changes ◽  
Morphological And Molecular Data ◽  
A New Species

A new species, Cryptomonas uralensis Martynenko, Gusev, Kulizin & Guseva sp. nov., is described from western slopes of the Ural Mountains (Russia) based on morphological and molecular data. Phylogenetic relationships inferred from nuclear SSU and LSU rDNA sequences show that the new species forms a clade with C. tetrapyrenoidosa Skuja emend. Hoef-Emden & Melkonian. Comparison of secondary structures of nuclear rDNA ITS2, including analysis of Compensatory Base Changes (CBC), confirms the separation between C. uralensis sp. nov. and C. tetrapyrenoidosa. Cell morphology and sizes of C. uralensis sp. nov. are very similar to C. tetrapyrenoidosa and C. pyrenoidifera, and C. uralensis sp. nov. may thus represent a species that can only be reliably identified using molecular data.

New insights on Trametopsis Tomšovský (Polyporales Gäum) based on phylogenetic evidences and morphological analyses of neotropical species

Phytotaxa ◽  
2017 ◽  
Vol 311 (2) ◽  
pp. 155 ◽  
Author(s):  
NATALY GÓMEZ-MONTOYA ◽  
ELISANDRO RICARDO DRECHSLER-SANTOS ◽  
VALÉRIA FERREIRA-LOPES ◽  
MICHAL TOMŠOVSKÝ ◽  
CARLOS URCELAY ◽  
...  
Keyword(s):  
New Species ◽  
Phylogenetic Analyses ◽  
Lsu Rdna ◽  
Molecular Evidence ◽  
Type Specimens ◽  
Morphological Pattern ◽  
Neotropical Species ◽  
Rdna Sequences ◽  
Molecular Phylogenetic ◽  
A New Species

Based on molecular evidence and morphological analyses, a new species in the genus Trametopsis is revealed. Trametopsis aborigena sp. nov. is proposed and described from South America. Molecular phylogenetic analyses of ITS and LSU rDNA sequences suggest that Trametopsis cervina seems to encompass more than one species and confirm previous results showing that Antrodiella brasiliensis groups with Trametopsis. The morphological analyses of type specimens of A. brasiliensis and A. luteocontexta revealed a shared morphological pattern with Trametopsis and their combinations in Trametopsis are proposed. The circumscription of Trametopsis is discussed since all the studied specimens revealed a previously overlooked arrangement of characters, i.e., cylindrical and slightly curved to allantoid basidiospores and a metachromatic hyphal system monomitic in the context and dimitic in the tubes.

Combining morphological and molecular data to classify Laxus sakihariiae sp. n., a new stilbonematine nematode (Nematoda: Desmodoridae) from the coast of Sesoko Island, Japan

Nematology ◽  
2018 ◽  
Vol 20 (1) ◽  
pp. 81-95 ◽  
Author(s):  
Daniel Leduc ◽  
Frederic Sinniger
Keyword(s):  
New Species ◽  
Phylogenetic Analyses ◽  
Morphological Characters ◽  
Molecular Data ◽  
Diagnostic Feature ◽  
Lsu Rdna ◽  
Rdna Sequences ◽  
Molecular Phylogenetic ◽  
Simple Body ◽  
Morphological And Molecular Data

Because of their relatively simple body plan, the number of morphological characters used to differentiate between closely related nematode genera is often limited. In addition, boundaries among genera sometimes become blurred due to the appearance of new trait combinations as more new species are described. Molecular phylogenetic analyses can address the shortcomings of morphological taxonomy by clarifying relationships among closely related species and genera and can help identify which morphological characters are taxonomically informative. Here, we describeLaxus sakihariiaesp. n. from shallow subtidal sands on Sesoko Island in the Okinawa prefecture, investigate phylogenetic relationships with other stilbonematine species and genera based on SSU rDNA sequences, and provide the first LSU rDNA sequence for the subfamily. The new species can be easily distinguished from all other species of the genus by the presence in the male of subventral and ventral rows of stout and spine-like setae in the pre- and postcloacal regions. This feature suggests affinities with the closely related genusLeptonemella, although the SSU consensus tree clearly shows that the new species forms a monophyletic clade together with the otherLaxusspecies for which sequences are available. The structure of the cephalic capsule inL. sakihariiaesp. n., which consists of a block layer between the median and basal zones of the cephalic cuticle, is consistent with the placement of this species. This trait is not currently used as a diagnostic feature, but our finding suggests that the structure of the cephalic capsule may be taxonomically useful for differentiating between some stilbonematine genera.

Pedicularis wanghongiae (Orobanchaceae), a new species from Yunnan, southwestern China

Phytotaxa ◽  
2015 ◽  
Vol 217 (1) ◽  
pp. 53 ◽  
Author(s):  
Min-Lu Liu ◽  
Wen-Bin Yu
Keyword(s):  
New Species ◽  
Phylogenetic Analyses ◽  
Molecular Data ◽  
Southwestern China ◽  
Key To Species ◽  
Wet Meadow ◽  
Exine Ornamentation ◽  
Molecular Phylogenetic ◽  
In Series ◽  
A New Species

Pedicularis wanghongiae M.L.Liu & W.B.Yu, a new species from Gaoligong Mountains in Yunnan Province, southwestern China, is described and illustrated. This new species was found growing in the wet meadow at the top of the mountains near Dulongjiang Township and Cikai Township. Pedicularis wanghongiae is morphologically similar to P. praeruptorum Bonati, but differs from the latter in having an upward bent galea, shorter petioles and only two pubescent filaments. In addition, stems of P. wanghongiae are densely glandular pubescent, and its leaves are abaxially white pubescent along the veins. Furthermore, the pollen grain of P. wanghongiae is bisyncolpate with microfoveolate exine ornamentation. Molecular phylogenetic analyses using four DNA loci (ITS, matK, rbcL and trnL-F) support the delimitation of this new species. Morphologically, this new species should be placed in Pedicularis series Paucifoliatae Prain according to Tsoong’s classification. However, series Paucifoliatae was shown to be paraphyletic based on molecular data. A key to species in series Paucifoliatae is presented, and relationships among these species discussed.

The genus Lolia from freshwater habitats in Egypt with one new species

Phytotaxa ◽  
2016 ◽  
Vol 267 (4) ◽  
pp. 279 ◽  
Author(s):  
FATEN A. ABDEL-AZIZ
Keyword(s):  
New Species ◽  
Sequence Data ◽  
Phylogenetic Analyses ◽  
Molecular Data ◽  
Rdna Sequence ◽  
Lsu Rdna ◽  
Sexual Morph ◽  
Molecular Phylogenetic ◽  
Freshwater Habitats ◽  
A New Species

A new species of Lolia and the sexual morph of L. aquatica are described, with illustrations, from decayed submerged wood in the River Nile, Egypt. Molecular phylogenetic analyses of partial SSU and LSU rDNA sequence data place the sexual morph of L. aquatica and the new species, L. dictyospora in a monophyletic clade, distant from the closely related fungi in the freshwater family Lindgomycetaceae. Pairwise LSU rDNA sequence alignment of the sexual/asexual morphs of L. aquatica are 99% similar. Lolia species are characterized by pseudothecial or stromatic, immersed to erumpent, dark-brown to black, coriaceous to sub-carbonaceous ascomata, cylindric-clavate, bitunicate, fissitunicate, short pedicellate asci, yellow to reddish-brown, phragmo- or dictyospores, surrounded by prominent gelatinous sheath. Lolia species are phylogenetically distant from the closely related genera: Leptosphaeria (Leptosphaeriaceae) and Massariosphaeria (Pleosporales incert. sed.). Lolia differs from Leptosphaeria in having a prominent large gelatinous ascospore sheath, while this is absent in Leptosphaeria species. Lolia differs from Massariosphaeria in having smaller ascospores and fewer transverse septa. Based on molecular data and morphology, a new species, Lolia dictyospora, is established.

Description of a new species Coomansus batxatensis (Mononchida, Mononchidae) from Vietnam, with an updated key to species

2021 ◽  
Vol 95 ◽  
Author(s):  
T.T.T. Vu
Keyword(s):  
New Species ◽  
Buccal Cavity ◽  
Small Body ◽  
Molecular Data ◽  
Cavity Size ◽  
Key To Species ◽  
Tooth Apex ◽  
A New Species ◽  
Posterior Position ◽  
28S Ribosomal Dna

Abstract Coomansus batxatensis sp. nov., recorded from Vietnam, is described and illustrated and its phylogenetic relationship within the Mononchida is analysed. The molecular data (18S and 28S ribosomal DNA) are provided for the new species. The new species is characterized by small body size (body length, L = 0.7–0.9 mm); buccal cavity sub-rectangular in shape, flattened at base, 21–24 × 12–13 μm or 1.9 (1.7–2.0) times as long as wide; posterior position of dorsal tooth apex (59–63% from the base of buccal cavity); pars refringens vaginae with faint and small (2.5 × 1.7 μm) teardrop-shaped pieces, short pars distalis vaginae; and males with short spicules (50–51.5 μm) with rounded head and conical blade part. The new species is close to Coomansus parvus but differs from it by the smaller buccal cavity size, more posterior position of the dorsal tooth apex, longer tail and presence of males. An updated identification key to Coomansus species and a compendium of all the species known are presented.

scholarly journals Morphological and molecular identification of a new species of Atraporiella (Polyporales, Basidiomycota) in China

Phytotaxa ◽  
2017 ◽  
Vol 332 (1) ◽  
pp. 31 ◽  
Author(s):  
ZI-QIANG WU ◽  
SHAN SHEN ◽  
KAI-YUE LUO ◽  
ZHENG-HUI WANG ◽  
CHANG-LIN ZHAO
Keyword(s):  
New Species ◽  
Phylogenetic Analyses ◽  
Large Subunit ◽  
Strong Support ◽  
Molecular Data ◽  
Fungal Species ◽  
Monophyletic Lineage ◽  
Inference Methods ◽  
A New Species ◽  
Molecular Characters

A new poroid wood-inhabiting fungal species, Atraporiella yunnanensis sp. nov., is proposed based on morphological and molecular characters. The species is characterized by cream pore surface when dry, which is easy to separate from substrate and very rapidly stained dark brown to black when bruised; hyphal system monomitic with generative hyphae hyaline to pale brown, thin-walled, unbranched, interwoven; slightly allantoid basidiospores, 2.2–3 × 0.8–1.5 µm. The internal transcribed spacer (ITS) and the large subunit (LSU) regions of nuclear ribosomal RNA gene sequences of the studied samples were generated, and phylogenetic analyses were performed with maximum likelihood, maximum parsimony and bayesian inference methods. The phylogenetic analysis based on molecular data of ITS+nLSU sequences showed that Atraporiella yunnanensis belonged to the residual polyporoid clade, formed a monophyletic lineage with a strong support (100% BS, 100% BP, 1.00 BPP) and was closely related to A. neotropica, and then grouped with other related genera: Antrodiella, Pouzaroporia, Steccherinum and Xanthoporus. Both morphological and molecular characters confirmed the placement of the new species in Atraporiella.

Molecular and morphological characterisation of Cryptaphelenchus baujardi n. sp. (Nematoda: Ektaphelenchinae), a new species based on two populations from Iran

Nematology ◽  
2019 ◽  
Vol 21 (1) ◽  
pp. 45-56 ◽  
Author(s):  
Farzad Aliramaji ◽  
Esmaeil Miraeiz ◽  
Ebrahim Pourjam ◽  
Ramin Heydari
Keyword(s):  
New Species ◽  
Phylogenetic Analyses ◽  
Lsu Rdna ◽  
New Taxon ◽  
Male Body ◽  
Northern Iran ◽  
Lateral Field ◽  
Rdna Sequences ◽  
Strong Resemblance ◽  
Two Populations

Summary Cryptaphelenchus baujardi n. sp. is described and illustrated based on two populations from Golestan province, northern Iran. The new species is characterised by female and male body length of 224 (190-261) and 215 (195-229) μm, respectively, offset cephalic region with a shallow constriction, delicate stylet 6.6 (6.0-7.0) μm long, four incisures in the lateral field, presence of a rudimentary post-uterine sac in the female gonoduct, elongate-conoid female tail ending in an acute to finely rounded terminus, male tail conical, male with seven caudal papillae and delicate spicules. The new species shows a strong resemblance to C. varicaudatus and C. iranicus, but has a sclerotised mass near the tip of the spicule and an indistinct spermatheca. Phylogenetic analyses based on both partial SSU and LSU rDNA sequences confirm its status as a new taxon.

Lecanicillium subprimulinum (Cordycipitaceae, Hypocreales), a novel species from Baoshan, Yunnan

Phytotaxa ◽  
2018 ◽  
Vol 348 (2) ◽  
pp. 99 ◽  
Author(s):  
SHIKE HUANG ◽  
SAJEEWA S.N. MAHARACHCHIKUMBURA ◽  
RAJESH JEEWON ◽  
D JAYARAMA BHAT ◽  
RUNGTIWA PHOOKAMSAK ◽  
...  
Keyword(s):  
New Species ◽  
Novel Species ◽  
Phylogenetic Analyses ◽  
Molecular Data ◽  
Its Sequence ◽  
New Taxon ◽  
Sexual Morph ◽  
The Family ◽  
Asexual Morphs ◽  
A New Species

In this paper, we report a new asexual-morph taxon belonging to the family Cordycipitaceae (Hypocreales), which is associated with a sexual morph of an ophioceras-like taxon on submerged wood collected from Baoshan, Yunnan, China. Morphologically, this new taxon is similar to known asexual morphs of Lecanicillium and characterized by conidiophores arising from hyaline hyphae, with gregarious, ellipsoid to ovoid, aseptate conidia. Phylogenetic analyses of a combined LSU, SSU, tef1-α and ITS sequence dataset positions our taxon in Cordycipitaceae and close to Lecanicillium sp. (CBS 639.85) and L. primulinum. Lecanicillium subprimulinum is introduced as a new species with support from molecular data.

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