Chaetoceros coloradensis sp. nov. (Bacillariophyta, Chaetocerotaceae), a new inland species from Little Gaynor Lake, Colorado, North America

Phytotaxa ◽  
2016 ◽  
Vol 255 (3) ◽  
pp. 199 ◽  
Author(s):  
JING LI ◽  
J. PATRICK KOCIOLEK ◽  
YAHUI GAO
Keyword(s):  
New Species ◽  
North America ◽  
Growth Form ◽  
Sequence Data ◽  
Light And Electron Microscopy ◽  
Lsu Rdna ◽  
Data Set ◽  
Individual Gene ◽  
Compare And Contrast ◽  
Solitary Species

Chaetoceros is a large, mostly marine genus of diatoms that contains over five hundred species worldwide. Most species of Chaetoceros form chains, while a small minority are solitary in their growth form. Only seven Chaetoceros species have been reported in inland waters of Western North America, including C. amanita, C. elmorei, C. hohnii, C. muelleri, C. muelleri var. subsalsum, C. simplex and C. transisetus. A new Chaetoceros species, Chaetoceros coloradensis sp. nov. was found in Little Gaynor Lake in Boulder, Colorado, USA. We describe this new species using light and electron microscopy. Chaetoceros coloradensis has two setae per valve. Setae on opposite valves have different orientations in valve view, being offset by 30–45o from one another while all four setae lie in the same focal plane in girdle view. No processes exist on the valve surface of this new species. Individual gene and a concatenated sequence data set of LSU rDNA and SSU rDNA for C. coloradensis show that this species is allied with other solitary species in the genus. We compare and contrast the new species with all other twenty-one solitary species recorded, and comment on the section Simplicia, a group within Chaetoceros comprised exclusively of solitary species.

Cryptococcus tephrensis, sp.nov., and Cryptococcus heimaeyensis, sp.nov.; new anamorphic basidiomycetous yeast species from Iceland

2002 ◽  
Vol 48 (5) ◽  
pp. 463-467 ◽  
Author(s):  
Helen S Vishniac
Keyword(s):  
New Species ◽  
Yeast Species ◽  
Sequence Data ◽  
Growth Failure ◽  
Nitrogen Sources ◽  
Sole Source ◽  
Lsu Rdna ◽  
Two New Species ◽  
Physiological Profiles ◽  
Maximum Temperatures

Two new species from Iceland are described on the basis of physiological profiles and sequence data from the D2 region of LSU rDNA: Cryptococcus tephrensis (type ICE99-1ToM Y5, ATCC MYA-1765, CBS 8935, GenBank AF317208) and Cryptococcus heimaeyensis (type ICE99-1ToM Y8, ATCC MYA-1759, CBS 8933, GenBank AF370717). The two new species are identifiable from sequence data and can be distinguished from their closest relative, Cryptococcus victoriae, by their higher maximum temperatures for growth, failure to utilize nitrate as sole nitrogen source, and utilization of cadaverine and ethylamine as sole nitrogen sources. Cryptococcus tephrensis is distinguishable from C. heimaeyensis by failure to grow on saccharate as sole source of carbon and energy.Key words: Iceland, Cryptococcus, soil yeasts.

scholarly journals Taxonomy and phylogeny of the Leptographium olivaceum complex (Ophiostomatales, Ascomycota), including descriptions of six new species from China and Europe

MycoKeys ◽  
2019 ◽  
Vol 60 ◽  
pp. 93-123 ◽  
Author(s):  
Mingliang Yin ◽  
Michael J. Wingfield ◽  
Xudong Zhou ◽  
Riikka Linnakoski ◽  
Z. Wilhelm de Beer
Keyword(s):  
New Species ◽  
North America ◽  
Bark Beetles ◽  
Sequence Data ◽  
Phylogenetic Analyses ◽  
New Combinations

The Leptographium olivacea complex encompasses species in the broadly defined genus Leptographium (Ophiostomatales, Ascomycota) that are generally characterized by synnematous conidiophores. Most species of the complex are associates of conifer-infesting bark beetles in Europe and North America. The aims of this study were to reconsider the delineation of known species, and to confirm the identity of several additional isolates resembling L. olivacea that have emerged from recent surveys in China, Finland, Poland, Russia, and Spain. Phylogenetic analyses of sequence data for five loci (ACT, TUB, CAL, ITS2-LSU, and TEF-1α) distinguished 14 species within the complex. These included eight known species (L. cucullatum, L. davidsonii, L. erubescens, L. francke-grosmanniae, L. olivaceum, L. olivaceapini, L. sagmatosporum, and L. vescum) and six new species (herein described as L. breviuscapum, L. conplurium, L. pseudoalbum, L. rhizoidum, L. sylvestris, and L. xiningense). New combinations are provided for L. cucullatum, L. davidsonii, L. erubescens, L. olivaceum, L. olivaceapini, L. sagmatosporum and L. vescum. New Typifications: Lectotypes are designated for L. olivaceum, L. erubescens and L. sagmatosporum. Epitypes were designated for L. olivaceapini and L. sagmatosporum. In addition to phylogenetic separation, the synnematous asexual states and ascomata with almost cylindrical necks and prominent ostiolar hyphae, distinguish the L. olivaceum complex from others in Leptographium.

Phasmarhabditis hermaphrodita (Nematoda: Rhabditidae), a potential biocontrol agent isolated for the first time from invasive slugs in North America

Nematology ◽  
2014 ◽  
Vol 16 (10) ◽  
pp. 1129-1138 ◽  
Author(s):  
Irma Tandingan De Ley ◽  
Rory D. McDonnell ◽  
Sandy Lopez ◽  
Timothy D. Paine ◽  
Paul De Ley
Keyword(s):  
North America ◽  
Sequence Data ◽  
Control Strategies ◽  
Large Subunit ◽  
Small Subunit ◽  
Coi Gene ◽  
Lsu Rdna ◽  
Molecular Sequence Data ◽  
First Time ◽  
Phasmarhabditis Hermaphrodita

Phasmarhabditis hermaphroditais reported for the first time in North America from cadavers of the invasive slug speciesDeroceras reticulatum,D. laeveandLehmannia valentianacollected from three different locations in California, USA. Four isolates were identified using combined morphology, morphometrics and molecular sequence data for complete internal transcribed spacer (ITS-1, 5.8S, ITS-2), D2-D3 expansion segments of the large subunit (LSU or 28S) and nearly complete small subunit (SSU or 18S) ribosomal DNA. Extremely low sequence variations in the COI gene of the mitochondria were observed among US isolates as well as between US isolates and the two UK sequences. The occurrence ofP. hermaphroditain North America has regulatory implications for potential biological control strategies against non-native gastropod species that are pests in ornamental and agricultural cultivation on this continent. The D2-D3 sequence of the LSU rDNA is new for the species.

A new araphid diatom genus Psammoneis gen. nov. (Plagiogrammaceae, Bacillariophyta) with three new species based on SSU and LSU rDNA sequence data and morphology

Phycologia ◽  
2008 ◽  
Vol 47 (5) ◽  
pp. 510-528 ◽  
Author(s):  
Shinya Sato ◽  
Wiebe H. C. F. Kooistra ◽  
Tsuyoshi Watanabe ◽  
Satoko Matsumoto ◽  
Linda K. Medlin
Keyword(s):  
New Species ◽  
Sequence Data ◽  
Rdna Sequence ◽  
Lsu Rdna ◽  
Rdna Sequence Data ◽  
Diatom Genus ◽  
Three New Species

scholarly journals Studies in the Basidiodendron caesiocinereum complex (Auriculariales, Basidiomycota)

2021 ◽  
Vol 20 (10) ◽  
pp. 1275-1296
Author(s):  
Viacheslav Spirin ◽  
Vera Malysheva ◽  
Nathan Schoutteten ◽  
Ilya Viner ◽  
Otto Miettinen ◽  
...  
Keyword(s):  
New Species ◽  
North America ◽  
Morphological Character ◽  
Species Recognition ◽  
Molecular Methods ◽  
Lsu Rdna ◽  
Separate Species ◽  
Rdna Its

AbstractTaxonomy of Basidiodendron caesiocinereum complex is revised based on morphological and molecular methods (with the use of nc LSU rDNA, ITS and TEF1 regions). The basidiospore ornamentation is justified as a key morphological character for the species recognition in the group. As redefined here, B. caesiocinereum is an angiosperm-dwelling species with smooth basidiospores. Bourdotia cinerella and B. cinerella var. trachyspora are proved to represent separate species with warted basidiospores; they are reintroduced as Basidiodendron cinerellum and B. trachysporum. Additionally, eight new species related to B. caesiocinereum are described based on material from Eurasia, North America and Africa, and identity of B. spinosum from Oceania is discussed.

scholarly journals Lecanicillium cauligalbarum sp. nov. (Cordycipitaceae, Hypocreales), a novel fungus isolated from a stemborer in the Yao Ren National Forest Mountain Park, Guizhou

MycoKeys ◽  
2018 ◽  
Vol 43 ◽  
pp. 59-74 ◽  
Author(s):  
Ye-Ming Zhou ◽  
Jun-Rui Zhi ◽  
Mao Ye ◽  
Zhi-Yuan Zhang ◽  
Wen-Bo Yue ◽  
...  
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Forest Floor ◽  
Sequence Data ◽  
Distinct Species ◽  
National Forest ◽  
Data Set ◽  
Forest Mountain ◽  
A New Species ◽  
Combined Data

A new species of entomopathogenic fungi,Lecanicilliumcauligalbarum, was discovered from a survey of invertebrate-associated fungi in the Yao Ren National Forest Mountain Park in China. The synnemata of this species emerged from the corpse of a stemborer (Lepidoptera), which was hidden amongst pieces of wood on the forest floor. It differs from morphologically similarLecanicilliumspecies mainly in its short conidiogenous cells and ellipsoid to ovoid and aseptate conidia. Phylogenetic analysis of a combined data set comprising ITS,SSU,LSU,TEF,RPB1andRPB2sequence data supported the inclusion ofL.cauligalbarumin theLecanicilliumgenus and its recognition as a distinct species.

Phylogeny and a new species of the genus Arachnomyces (Arachnomycetaceae)

Phytotaxa ◽  
2019 ◽  
Vol 394 (1) ◽  
pp. 89 ◽  
Author(s):  
BING-DA SUN ◽  
YU-GUANG ZHOU ◽  
AMANDA-JUAN CHEN ◽  
JOS HOUBRAKEN
Keyword(s):  
New Species ◽  
Sequence Data ◽  
Reference Sequence ◽  
Lsu Rdna ◽  
Rdna Sequences ◽  
Dichotomous Key ◽  
Pig Farm ◽  
Slow Growing ◽  
Type Information ◽  
A New Species

A slow growing, asexual fungus that produces numerous arthroconidia was isolated during a mycobiota survey of pig farm soil in China. Phenotypic characteristics and phylogenetic analysis based on ITS and LSU rDNA sequences showed that it is a new species in the genus Arachnomyces, and the name Arachnomyces jinanicus was introduced. A. pilosus and A. scleroticus are new combinations for Chrysosporium pilosum and Onychocola sclerotica (=Malbranchia scleroticus) respectively. Currently, 11 species are accepted in Arachnomyces and an overview with type information and reference sequence data is given. The phylogenetic relationships of species within the genus are discussed, and a dichotomous key for distinguishing all reported Arachnomyces species is provided.

Two new species of Inocybe from Australia and North America that include novel secotioid forms

Botany ◽  
2014 ◽  
Vol 92 (1) ◽  
pp. 9-22 ◽  
Author(s):  
Christine C. Braaten ◽  
P. Brandon Matheny ◽  
Debra L. Viess ◽  
Michael G. Wood ◽  
Joseph H. Williams ◽  
...  
Keyword(s):  
New Species ◽  
North America ◽  
Sequence Data ◽  
Novel Species ◽  
Phylogenetic Analyses ◽  
Western North America ◽  
Molecular Sequence Data ◽  
Molecular Sequence ◽  
Two New Species ◽  
Phenotypic Variant

The secotioid form of fruit bodies of mushroom-forming fungi may be an intermediate evolutionary modification of epigeous agaricoid or pileate–stipitate forms (i.e., with pileus, spore-bearing tissues, and stipe) and typically hypogeous, gasteroid- or truffle-forming species, in which the fruit bodies have been reduced to enclosed structures containing modified spore-producing tissues. To date, only a single secotioid species (Auritella geoaustralis Matheny & Bougher ex Matheny & Bougher) has been described in the ectomycorrhizal family Inocybaceae, a hyperdiverse clade of ca. 500–700 species with a cosmopolitan distribution. Fieldwork in Australia and western North America, however, has revealed two novel secotioid forms of Inocybe (Fr.) Fr., the first to be formally described in the genus. In this investigation, we analyze their phylogenetic relationships using molecular sequence data from multiple unlinked loci to test whether these are environmental variants of agaricoid forms or represent independent lineages. Results of phylogenetic analyses suggest these fungi have converged to the secotioid form independently. However, the California secotioid taxon (Inocybe multifolia f. cryptophylla f. nov.) is a phenotypic variant of the newly described agaricoid taxon (Inocybe multifolia sp. nov.). Similarly, the Australian secotioid form (Inocybe bicornis f. secotioides f. nov.) is nested within a clade of otherwise agaricoid forms of a second novel species (Inocybe bicornis sp. nov.) described from southwest Western Australia. Overall, four species with sequestrate forms within Inocybaceae can now be recognized, three of which are distributed in Australia and one in western North America, in the genera Auritella and Inocybe.

Ordovician Sphinctozoan Sponges from the Eastern Klamath Mountains, Northern California

1986 ◽  
Vol 60 (S20) ◽  
pp. 1-47 ◽  
Author(s):  
J. Keith Rigby ◽  
A. W. Potter
Keyword(s):  
New Species ◽  
North America ◽  
Growth Form ◽  
Late Ordovician ◽  
Late Paleozoic ◽  
Late Devonian ◽  
Northern California ◽  
New Genera ◽  
Klamath Mountains ◽  
Middle Ordovician

Extensive silicified faunules of Middle and Late Ordovician sphinctozoan sponges have been assembled from the northern part of the eastern Klamath Mountains in northern California. The sponges are from eugeosynclinal rocks that are the westernmost Middle Ordovician to Late Devonian rocks at that latitude in North America. Seventeen new species occur in the assemblages, including 10 porate and 7 aporate forms. New genera of porate forms areAmblysiphonelloidesandCorymbospongia, and new porate species include:Amblysiphonella grossa, Amblysiphonelloides tubula, A. reticulata, Imperatoria mega, I. media, I. minima, I. irregularis, Corymbospongia adnata, C. mica, andC.(?)perforata.These are the first reported occurrences ofAmblysiphonellaandImperatoriain the Ordovician. New aporate genera areCystothalamiellaandPorefieldia, and new aporate species include:Cystothalamiella ducta, C. craticula, C. tuboides, Porefieldia robusta, Girtyocoelia epiporata, andG. canna.This is the oldest known occurrence ofGirtyocoelia, which is generally considered a Late Paleozoic form.Cliefdenella obconican. sp. is characterized by an obconical growth form in contrast to other species of the genus that are more massive or explanate.Cliefdenellais considered here as an imperforate sphinctozoan.Minor isolated hexactines and hexactine-derived spicules of Hexactinellida were associated with the sphinctozoans. No particular taxa within the class can be distinguished from these individual elements.

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.

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