scholarly journals Discovery of a Cryptic Species, Erysiphe Salicina Sp. Nov., and Reconstruction of The Phylogeny of Powdery Mildews On Populus and Salix Spp.

2022 ◽  
Author(s):  
Jing Feng ◽  
Shu-Yan Liu ◽  
Uwe Braun ◽  
Susumu Takamatsu ◽  
Michael Bradshaw ◽  
...  
Keyword(s):  
New Species ◽  
Cryptic Species ◽  
Internal Transcribed Spacer ◽  
Phylogenetic Analyses ◽  
Closely Related Species ◽  
Rdna Sequences ◽  
Powdery Mildews ◽  
Salix Gracilistyla ◽  
28S Rdna Sequences ◽  
Salix Spp

Abstract Recently performed phylogenetic-taxonomic analyses of species belonging to Erysiphe sect. Uncinula on willows (Salix spp.) demonstrated a much higher diversity than previously assumed. Phylogenetic analyses and morphological examinations of Chinese Erysiphe collections on Salix abscondita (= S. raddeana), S. sinica and S. taraikensis, all belonging to Salix subgen. Vetrix sect. Vetrix, revealed an additional cryptic species in sister position to the E. salicis clade, which is described as Erysiphe salicina. The new species clearly distinguished from all allied species in morphological and genetical results. The phylogeny of the new species and closely related species on Populus and Salix spp. (Salicaceae) was reconstructed and discussed using a combined alignment of the internal transcribed spacer (ITS) regions and 28S rDNA sequences. The present phylogenetic analyses suggest that the recently described E. salicicola (on Salix gracilistyla in South Korea) has to be reduced to synonymy with E. salicis var. salicis-gracilistylae (º Uncinula salicis-gracilistylae).

Generic classification of some more hyphomycetes with solitary conidia borne on phialides

1998 ◽  
Vol 76 (9) ◽  
pp. 1570-1583 ◽  
Author(s):  
W Gams ◽  
K O'Donnell ◽  
H -J Schroers ◽  
M Christensen
Keyword(s):  
New Species ◽  
Phylogenetic Analyses ◽  
Large Subunit ◽  
Elongation Factor ◽  
28S Rdna ◽  
New Combination ◽  
Rdna Sequences ◽  
28S Rdna Sequences ◽  
Three New Species ◽  
Morphological Species

Unlike most phialide-producing fungi that liberate a multiplicity of conidia from each conidiogenous cell, only single conidia are formed on phialide-like conidiogenous cells in Aphanocladium, Verticimonosporium, and some species of Sibirina. A group of isolates obtained from soil of native Artemisia tridentata (sagebrush) grassland in Wyoming and from desert soil in Iraq is compared with these genera and classified as a fourth genus, Stanjemonium, honouring Stanley J. Hughes. Phylogenetic analyses of partial nuclear small- (18S) and large-subunit (28S) rDNA sequences indicate that Stanjemonium spp. form a monophyletic group with Emericellopsis. Sequences from the nuclear 18S and 28S rDNA were too conserved to resolve morphological species of Stanjemonium; however, phylogenetic analysis of b-tubulin and translation elongation factor 1a gene exons and introns resolved all species distinguished morphologically. Numerous conidiogenous cells or denticles are scattered along the cells of aerial hyphae in Aphanocladium and Stanjemonium spp., very rapidly collapsing into denticles in the former, somewhat more persistent and leaving broad scars in the latter. In Cladobotryum-Sibirina and Verticimonosporium spp., conidiogenous cells are discrete in terminal and intercalary whorls; phialides of the latter taxon are particularly swollen. The taxonomy of Aphanocladium is not yet resolved. Two species are recognized in Verticimonosporium. Three new species of Stanjemonium are described, and one new combination from Aphanocladium is proposed, along with one new species of Cladobotryum.Key words: Aphanocladium, Cladobotryum, conidiogenesis, hyphomycetes, molecular phylogeny, phialide, Stanjemonium, systematics, Verticimonosporium.

scholarly journals Phallus haitangensis, a new species of stinkhorn from Yunnan Province, China

Phytotaxa ◽  
2016 ◽  
Vol 280 (2) ◽  
pp. 116 ◽  
Author(s):  
HUILI LI ◽  
XUELAN MA ◽  
PETER E. MORTIMER ◽  
SAMANTHA C. KARUNARATHNA ◽  
JIANCHU XU ◽  
...  
Keyword(s):  
New Species ◽  
Related Species ◽  
Internal Transcribed Spacer ◽  
Yunnan Province ◽  
Sequence Data ◽  
Phylogenetic Analyses ◽  
Its Sequence ◽  
Closely Related Species ◽  
Line Drawings ◽  
A New Species

Four specimens of Phallus were collected during surveys in a Pinus armandii forest in Baoshan, Yunnan Province, China. Macro- and micro-characteristics, together with Internal Transcribed Spacer (ITS) sequence data, showed that the four specimens belong to a new species, here named Phallus haitangensis. The ITS phylogenetic analyses, morphological descriptions, color photographs, and line drawings are provided, and compared with closely related species in the genus.

Powdery mildew caused by Erysiphe lespedezae (including Pseudoidium caesalpiniacearum, syn. nov.) on Bauhinia blakeana and B. purpurea in China

Phytotaxa ◽  
2018 ◽  
Vol 345 (1) ◽  
pp. 35 ◽  
Author(s):  
BIAO XU ◽  
UWE BRAUN ◽  
SHANHE ZHANG ◽  
HUI YANG ◽  
ZHI CAO ◽  
...  
Keyword(s):  
Powdery Mildew ◽  
Phylogenetic Analyses ◽  
Morphological Characters ◽  
Molecular Data ◽  
Morphological Description ◽  
New Host ◽  
Rdna Sequences ◽  
Powdery Mildews ◽  
Molecular Phylogenetic ◽  
28S Rdna Sequences

Bauhinia species are popular ornamental and medicinal plants with a pantropical distribution. In December 2016, powdery mildew symptoms were found on B. blakeana and B. purpurea in Guangdong, China. Based on ITS and 28S rDNA sequences, as well as morphological characters, the powdery mildew was identified as Erysiphe lespedezae. Previous records of powdery mildews on Bauhinia spp. are discussed. Based on morphological and molecular phylogenetic analyses of type material, Pseudoidium caesalpiniacearum is reduced to synonymy with E. lespedezae. To our best knowledge, this is the first report of E. lespedezae causing powdery mildew on B. purpurea in China, and B. blakeana as a new host. A detailed morphological description and molecular data are provided herein.

scholarly journals Phasmarhabditis zhejiangensis sp. nov. (Nematoda: Rhabditidae), a new rhabditid nematode from Zhejiang, China

PLoS ONE ◽  
2020 ◽  
Vol 15 (11) ◽  
pp. e0241413
Author(s):  
Chao-nan Zhang ◽  
Qi-zhi Liu
Keyword(s):  
Internal Transcribed Spacer ◽  
Phylogenetic Analyses ◽  
Nematode Species ◽  
The Body ◽  
Molecular Analyses ◽  
Spicule Length ◽  
Rdna Sequences ◽  
Tail Shape ◽  
28S Rdna Sequences ◽  
A New Species

A new nematode species of the genus Phasmarhabditis was isolated from the body surface of a slug (Philomycus bilineatus Benson, PB). Morphological and molecular analyses confirmed this nematode as a new species. The nematode was named Phasmarhabditis zhejiangensis sp. nov. (Nematoda: Rhabditidae) and is dioecious. In males, the open bursa with genital papillae is characterized by the formula 1-1-1-2-1-3, and the spicule length is 58μm. In female, the vulva is located approximately in the middle of the body. The nematode belongs to papillosa group because of its tail shape pointed with filiform tip. The phasmids are rod-shaped. The posterior anus is slightly swollen. P. zhejiangensis was further characterized by internal transcribed spacer (ITS), 18S rDNA and 28S rDNA sequences. After the sequencing results were compared with sequences available from the National Center for Biotechnology Information (NCBI), the maximum similarities of ITS, 18S and 28S sequences were 89.81%, 96.22% and 95.28%, respectively. Phylogenetic analyses placed Phasmarhabditis zhejiangensis sp. nov. in the genus Phasmarhabditis.

Two new species of the genus Chironephthya (Octocorallia, Alcyonacea, Nidaliidae, Siphonogorgiinae) from the Gulf of Thailand

Zootaxa ◽  
2020 ◽  
Vol 4780 (2) ◽  
pp. 324-340
Author(s):  
YUKIMITSU IMAHARA ◽  
SUCHANA CHAVANICH ◽  
VORANOP VIYAKARN ◽  
YUKA KUSHIDA ◽  
JAMES D. REIMER ◽  
...  
Keyword(s):  
New Species ◽  
New Genus ◽  
Phylogenetic Analyses ◽  
Taxonomic Revision ◽  
Gulf Of Thailand ◽  
Rdna Sequences ◽  
Two New Species ◽  
28S Rdna Sequences ◽  
The Gulf Of Thailand ◽  
Multiple Stems

Two new species of the genus Chironephthya, C. sirindhornae sp. nov. and C. cornigera sp. nov., are described based on three specimens collected from the Gulf of Thailand. Both species are well distinguished from the previously described species of the genus Chironephthya by their colonies consisting of multiple stems that stand upright from a common base, and by a significantly thinner canal wall without large spindles. As a result of phylogenetic analyses using COI, mtMutS, and 28S rDNA sequences of these two species, these three specimens constituted an independent small clade within a large mixed clade of Siphonogorgia and Chironephthya, with the two species slightly different from each other. The discrepancy in the morphology suggested the erection of a new genus to accommodate these species, however, as the subclade was included in a large mixed clade of Siphonogorgia and Chironephthya, we place these species within genus Chironephthya. Our results further highlight the continuing confusion between Siphonogorgia and Chironephthya, and demonstrate the need for taxonomic revision of these genera. 

A new species of Galerina (Hymenogastraceae, Agaricales) from northeast China

Phytotaxa ◽  
2021 ◽  
Vol 524 (1) ◽  
pp. 27-36
Author(s):  
XIAOLIANG LIU ◽  
TOLGOR BAU
Keyword(s):  
New Species ◽  
Internal Transcribed Spacer ◽  
Inner Mongolia ◽  
Northeast China ◽  
Phylogenetic Analyses ◽  
Morphological Description ◽  
Rdna Sequences ◽  
Inner Mongolia Autonomous Region ◽  
Internal Transcribed Spacer Rdna ◽  
A New Species

Galerina variibasidia, a new species in the Hymenogastraceae, was discovered in Arxan, Inner Mongolia Autonomous Region, China. This species is presented with morphological description, illustrations, and supported by phylogenetic analyses using Maximum Likelihood and Bayesian Inference analyses with the internal transcribed spacer rDNA sequences.

Neoalbatrellus odorus sp. nov. (Albatrellaceae, Russulales) from Southwest China

Phytotaxa ◽  
2017 ◽  
Vol 309 (3) ◽  
pp. 217 ◽  
Author(s):  
YUAN-YUAN CHEN ◽  
MIN WANG ◽  
BO ZHANG ◽  
BAO-KAI CUI
Keyword(s):  
New Species ◽  
Bayesian Inference ◽  
Maximum Likelihood ◽  
Southwest China ◽  
Phylogenetic Analyses ◽  
Molecular Data ◽  
Pore Surface ◽  
Rdna Sequences ◽  
Dark Violet ◽  
28S Rdna Sequences

We describe herein the Neoalbatrellus odorus sp. nov. accounting on its peculiar morphological features and molecular data. It is characterized by fleshy basidiomata with a deep violet to dark violet pileal surface, which turns blackish blue and glossy after drying. It also has a white pore surface, light violet to bluish violet stipe, simple septate generative hyphae, and thick-walled, non-amyloid basidiospores. The phylogenetic analyses, based on ITS and 28S rDNA sequences of Neoalbatrellus and its related genera, were performed using Maximum Parsimony, Maximum Likelihood and Bayesian Inference, confirming the affiliation of the new species to Neoalbatrellus.

scholarly journals Erysiphe deutziicola sp. nov. (Erysiphaceae, Ascomycota), a powdery mildew species found on Deutzia parviflora (Hydrangeaceae) with unusual appendages

MycoKeys ◽  
2019 ◽  
Vol 51 ◽  
pp. 97-106
Author(s):  
Peng-Lei Qiu ◽  
Uwe Braun ◽  
Yu Li ◽  
Shu-Yan Liu
Keyword(s):  
New Species ◽  
Powdery Mildew ◽  
Microscopic Examination ◽  
Phylogenetic Analyses ◽  
28S Rdna ◽  
Bootstrap Support ◽  
Rdna Sequences ◽  
28S Rdna Sequences ◽  
Beijing China ◽  
Ornamental Shrub

A powdery mildew (Erysiphales) has recently been collected on leaves of an ornamental shrub Deutziaparviflora in Baihua Mountain, Beijing, China. Microscopic examination of the chasmothecia suggested a species belonging to Erysiphesect.Erysiphe, above all due to mycelioid chasmothecial appendages, although circinate apices of the appendages were rather in favour of Erysiphesect.Uncinula, which is a fairly rare combination of appendage characteristics in Erysiphe. Phylogenetic analyses of ITS and 28S rDNA sequences demonstrated that the two examined powdery mildew collections on D.parviflora clustered together as an independent lineage within Erysiphe with 100% bootstrap support, representing a species of its own, which is phylogenetically allied to, but clearly distinct from Erysiphedeutziae and, in addition, morphologically quite different from all known Erysiphe species on hosts belonging to the Hydrangeaceae. The new species on D.parviflora is described as Erysiphedeutziicola.

Plectania lutea (Sarcosomataceae), a new species from southwestern karst areas of China

Phytotaxa ◽  
2021 ◽  
Vol 509 (3) ◽  
Author(s):  
GUANG-FU MOU ◽  
TOLGOR BAU
Keyword(s):  
New Species ◽  
Maximum Likelihood ◽  
Internal Transcribed Spacer ◽  
External Surface ◽  
Phylogenetic Analyses ◽  
Large Subunit ◽  
New Taxon ◽  
Rdna Sequences ◽  
Karst Areas ◽  
A New Species

Plectania lutea, is described as a new species from subtropical karst areas of China. The main distinguishing characteristics of P. lutea are the yellow hymenium, the external surface with ridges, the gelatinous but not semifluid medullary excipulum, and the large finely warted ascospores. The phylogenetic analyses based on internal transcribed spacer (ITS) and the large subunit (LSU) regions of rDNA sequences using Bayesian (BA) and Maximum Likelihood (ML) methods showed that the new taxon can be distinguished from phenotypically similar and phylogenetically related species.

Mucor cheongyangensis, a new species isolated from the surface of Lycorma delicatula in Korea

Phytotaxa ◽  
2020 ◽  
Vol 446 (1) ◽  
pp. 33-42
Author(s):  
THUONG T. T. NGUYEN ◽  
HYANG BURM LEE
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Internal Transcribed Spacer ◽  
Large Subunit ◽  
28S Rdna ◽  
Fungal Taxon ◽  
Rdna Sequences ◽  
Lycorma Delicatula ◽  
28S Rdna Sequences ◽  
A New Species

A new species of Mucor, isolated from the surface of Lycorma delicatula collected at Cheongyang in the Chungnam Province of Korea, is described and compared with morphologically similar taxa. The phylogenetic analysis of the internal transcribed spacer (ITS) and the large subunit (28S) rDNA sequences revealed that this isolate is closely related to M. orantomantidis and M. guilliermondii. However, the new isolate differs from those by having larger sporangia (24.5–125 × 23.5–120 µm), rhizoid-like structures, and production of secondary sporangia from vesicles outside of the original sporangium. Here, this novel fungal taxon is proposed as Mucor cheongyangensis sp. nov.

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