scholarly journals Trichoderma: Systematics, the Sexual State, and Ecology

2006 ◽  
Vol 96 (2) ◽  
pp. 195-206 ◽  
Author(s):  
Gary J. Samuels
Keyword(s):  
Phylogenetic Analyses ◽  
Elongation Factor ◽  
Morphological Characters ◽  
Individual Species ◽  
Botanical Nomenclature ◽  
Translation Elongation ◽  
Trichoderma Species ◽  
Molecular Phylogenetic ◽  
Identification Of Species ◽  
Internal Transcribed Spacer Rdna

A chronology is presented that charts the development of a genus and species concept in Trichoderma. Eighty-nine species of Trichoderma have been named, and several species of Hypocrea have been linked to unnamed Trichoderma anamorphs. Eighty-three taxa of Trichoderma and their teleomorphs, Hypocrea spp., have been included in phylogenetic analyses, including 11 species of Hypocrea with unnamed Trichoderma anamorphs. Phylogenetic analyses show that Trichoderma and Hypocrea are congeneric. Trichoderma species not linked to Hypocrea teleomorphs are derived from among species that are linked to teleomorphs, indicating sexual and asexual lineages are not independent of each other. Many more species remain to be discovered and described. Molecular phylogenetic analyses have revealed the existence of more species than have been recognized on the basis of morphology alone. A suggestion is made to modify the International Code of Botanical Nomenclature to enable adoption of a single generic name for Trichoderma/Hypocrea, with Trichoderma being the older and more utilitarian name. As increasing numbers of species are studied, the few morphological characters of anamorph and teleomorph have reached their limit for defining species. DNA-based characters have assumed an indispensable role. Exploration of new niches, such as within tree trunks and new geographic locations, have resulted in a substantial increase in the number of species of Trichoderma. Trichoderma is usually considered a genus of free-living soil fungi but evidence suggests that Trichoderma species may be opportunistic, avirulent plant symbionts as well as parasites of other fungi. Members of the genus Trichoderma are universally present in soils, although individual species may be either cosmopolitan (e.g., T. harzianum) or limited (e.g., T. viride) in their geographic distribution. To facilitate identification of species, a list of correctly identified strains of Trichoderma and their GenBank numbers for sequences of translation-elongation factor EF-1α and internal transcribed spacer rDNA is provided.

A new species of Heimioporus (Boletaceae) from southern China

Phytotaxa ◽  
2019 ◽  
Vol 415 (4) ◽  
pp. 179-188
Author(s):  
XIANG-NYU CHEN ◽  
MING ZHANG ◽  
TAI-HUI LI ◽  
NIAN-KAI ZENG
Keyword(s):  
New Species ◽  
Southern China ◽  
Phylogenetic Analyses ◽  
Elongation Factor ◽  
Morphological Characters ◽  
Molecular Data ◽  
Translation Elongation ◽  
Distinct Member ◽  
Elongation Factor 1 ◽  
A New Species

Heimioporus sinensis, collected from tropical and subtropical areas of China, is introduced as a new species based on both morphological characters and molecular data. The species is characterized by the purplish red to deep magenta pileus, the reticulated stipe, the irregularly reticulate to reticulate-alveolate basidiospores 11.5–13.5 × 8–9.5 μm, and a trichodermal to intricately trichodermal pileipellis. Phylogenetic analyses based on the nuc 28S rDNA D1-D2 domains (28S) and the translation elongation factor 1-α gene (tef1-α) showed that H. sinensis is a distinct member of the genus Heimioporus in the subfamily Xerocomoideae.

scholarly journals Multi-gene phylogeny and taxonomy of Amauroderma s. lat. (Ganodermataceae)

2020 ◽  
Vol 44 (1) ◽  
pp. 206-239 ◽  
Author(s):  
Y.-F. Sun ◽  
D.H. Costa-Rezende ◽  
J.-H. Xing ◽  
J.-L. Zhou ◽  
B. Zhang ◽  
...  
Keyword(s):  
Rna Polymerase ◽  
Rna Polymerase Ii ◽  
Phylogenetic Analyses ◽  
Large Subunit ◽  
Elongation Factor ◽  
Morphological Examination ◽  
Translation Elongation ◽  
Multiple Loci ◽  
Phylogenetic Studies ◽  
Molecular Phylogenetic

Amauroderma s.lat. has been defined mainly by the morphological features of non-truncate and double-walled basidiospores with a distinctly ornamented endospore wall. In this work, taxonomic and phylogenetic studies on species of Amauroderma s.lat. are carried out by morphological examination together with ultrastructural observations, and molecular phylogenetic analyses of multiple loci including the internal transcribed spacer regions (ITS), the large subunit of nuclear ribosomal RNA gene (nLSU), the largest subunit of RNA polymerase II (RPB1) and the second largest subunit of RNA polymerase II (RPB2), the translation elongation factor 1-α gene (TEF) and the β-tubulin gene (TUB). The results demonstrate that species of Ganodermataceae formed ten clades. Species previously placed in Amauroderma s.lat. are divided into four clades: Amauroderma s.str., Foraminispora, Furtadoa and a new genus Sanguinoderma. The classification of Amauroderma s. lat. is thus revised, six new species are described and illustrated, and eight new combinations are proposed. SEM micrographs of basidiospores of Foraminispora and Sanguinoderma are provided, and the importance of SEM in delimitation of taxa in this study is briefly discussed. Keys to species of Amauroderma s.str., Foraminispora, Furtadoa, and Sanguinoderma are also provided.

scholarly journals Phylogeny and taxonomic revision of Kernia and Acaulium

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Lei Su ◽  
Hua Zhu ◽  
Yongchun Niu ◽  
Yaxi Guo ◽  
Xiaopeng Du ◽  
...  
Keyword(s):  
Phylogenetic Analysis ◽  
Phylogenetic Analyses ◽  
Elongation Factor ◽  
Taxonomic Revision ◽  
Morphological Characters ◽  
Large Set ◽  
Internal Transcribed Spacer Region ◽  
Tubulin Genes ◽  
Morphological Criteria ◽  
Molecular Phylogenetic

Abstract The genera Kernia and Acaulium comprise species commonly isolated from dung, soil, decaying meat and skin of animal. The taxonomy of these fungi has been controversial and relies mainly on morphological criteria. With the aim to clarify the taxonomy and phylogeny of these fungi, we studied all the available ex-type strains of a large set of species by means of morphological and molecular phylogenetic analyses. Phylogenetic analysis of the partial internal transcribed spacer region (ITS) and the partial 28S rDNA (LSU) showed that the genera Kernia and Acaulium were found to be separated in two distinct lineages in Microascaceae. Based on morphological characters and multilocus phylogenetic analysis of the ITS, LSU, translation elongation factor 1α and β-tubulin genes, the species in Kernia and Acaulium were well separated and two new combinations are introduced, i.e. Acaulium peruvianum and Acaulium retardatum, a new species of Kernia is described, namely Kernia anthracina. Descriptions of the phenotypic features and molecular phylogeny for identification are discussed for accepted species in two genera in this study.

Monograph of Elaphoglossum sect. Polytrichia subsect. Apoda (Dryopteridaceae)

2021 ◽  
Author(s):  
Fernando B. Matos ◽  
Josmaily L&#243riga ◽  
Robbin C. Moran
Keyword(s):  
Phylogenetic Analyses ◽  
Morphological Characters ◽  
Character State ◽  
Similar Species ◽  
Southern Mexico ◽  
Distribution Maps ◽  
Molecular Phylogenetic ◽  
Identification Of Species ◽  
First Time ◽  
A New Species

We present a monographic treatment for the 13 species of Elaphoglossum sect. Polytrichia subsect. Apoda (Dryopteridaceae). Molecular phylogenetic analyses have recovered this subsection as monophyletic within the so-called “subulate-scaled clade” of Elaphoglossum. Morphologically, the species of E. subsect. Apoda are usually characterized by the presence of brightly colored stem scales (yellowish, orangish, orreddish, as opposed to castaneous to black), evenly distributed subulate scales on laminar surfaces, tiny glandular hairs on different parts of the leaves, and adult sterile leaves without hydathodes. The species can be divided into two groups: one with subsessile and the other with long-petiolate leaves. Elaphoglossum subsection Apoda is distributed from southern Mexico and the Antilles to Bolivia and midwestern Brazil. Elaphoglossum atehortuae, a new species from the Amazon region of Ecuador, is described, illustrated, and compared to its most similar species. It is unusual within this group for lacking subulate scales on both surfaces of the laminae, a character state that it shares with E. backhouseanum. Two species, E. polyblepharum and E. trichophorum, are included in the group for the first time, whereas E. procurrens and E. siliquoides are excluded based on morphological characters and previously published molecular phylogenies. We also provide comments for E. ×morphohybridum, which is a hybrid between E. alvaradoanum and E. crinitum. Lectotypes are designated for Acrostichum apodum, A. platyneuron, A. cubense, A. procurrens, A. trichophorum, and Elaphoglossum auripilum, and epitypes are designated for A. apodum. To facilitate the identification of species, we provide keys, descriptions, illustrations, comments, synonyms, distribution maps, spore images, and a list of specimens examined.

scholarly journals A multi-gene phylogeny of Chlorophyllum (Agaricaceae, Basidiomycota): new species, new combination and infrageneric classification

MycoKeys ◽  
2018 ◽  
Vol 32 ◽  
pp. 65-90 ◽  
Author(s):  
Zai-Wei Ge ◽  
Adriaana Jacobs ◽  
Else C. Vellinga ◽  
Phongeun Sysouphanthong ◽  
Retha van der Walt ◽  
...  
Keyword(s):  
New Species ◽  
Rna Polymerase Ii ◽  
Phylogenetic Analyses ◽  
Large Subunit ◽  
Elongation Factor ◽  
Morphological Characters ◽  
Nuclear Ribosomal Dna ◽  
New Combination ◽  
Infrageneric Classification ◽  
Molecular Phylogenetic

Taxonomic and phylogenetic studies of Chlorophyllum were carried out on the basis of morphological differences and molecular phylogenetic analyses. Based on the phylogeny inferred from the internal transcribed spacer (ITS), the partial large subunit nuclear ribosomal DNA (nrLSU), the second largest subunit of RNA polymerase II (rpb2) and translation elongation factor 1-α (tef1) sequences, six well-supported clades and 17 phylogenetic species are recognised. Within this phylogenetic framework and considering the diagnostic morphological characters, two new species, C.africanum and C.palaeotropicum, are described. In addition, a new infrageneric classification of Chlorophyllum is proposed, in which the genus is divided into six sections. One new combination is also made. This study provides a robust basis for a more detailed investigation of diversity and biogeography of Chlorophyllum.

scholarly journals Neopestalotiopsis Species Associated with Flower Diseases of Macadamia integrifolia in Australia

2021 ◽  
Vol 7 (9) ◽  
pp. 771
Author(s):  
Kandeeparoopan Prasannath ◽  
Roger G. Shivas ◽  
Victor J. Galea ◽  
Olufemi A. Akinsanmi
Keyword(s):  
New Species ◽  
Phylogenetic Analyses ◽  
Elongation Factor ◽  
Translation Elongation ◽  
Macadamia Integrifolia ◽  
Eastern Australia ◽  
Elongation Factor 1 Alpha ◽  
Molecular Phylogenetic ◽  
Flower Disease ◽  
Elongation Factor 1

Macadamia (Macadamia integrifolia) is native to eastern Australia and produces an edible nut that is extensively cultivated in commercial orchards in several countries. Little is known about the diversity of fungi associated with diseases of macadamia inflorescences. A survey of fungi associated with the dry flower disease of macadamia detected several isolates of Neopestalotiopsis (Pestalotiopsidaceae, Sordariomycetes). Five new species of Neopestalotiopsis were identified based on molecular phylogenetic analyses of concatenated gene sequences of the internal transcribed spacer (ITS), β-tubulin (TUB), and the translation elongation factor 1-alpha (TEF1α). The new species are named Neopestalotiopsis drenthii, N. maddoxii, N. olumideae, N. vheenae, and N. zakeelii, and are described by molecular, morphological, and cultural characteristics. The ecology of the isolates and their pathogenic, saprophytic, or commensal ability were not determined.

A new species of Ophiocordyceps (Ophiocordycipitaceae) from Mizoram, India

Phytotaxa ◽  
2021 ◽  
Vol 500 (1) ◽  
pp. 11-20
Author(s):  
ZOHMANGAIHA CHAWNGTHU ◽  
JOSIAH MC VABEIKHOKHEI ◽  
RITA ZOMUANPUII ◽  
SURAJIT DE MANDAL ◽  
JOHN ZOTHANZAMA
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Elongation Factor ◽  
Morphological Characters ◽  
Internal Transcribed Spacers ◽  
Paper Wasp ◽  
Molecular Phylogenetic Analysis ◽  
Translation Elongation ◽  
Molecular Phylogenetic ◽  
A New Species

Ophiocordyceps mizoramensisis described as a new species from Mizoram by using a combination of morphological and molecular phylogenetic analysis. The molecular phylogenetic analysis include both the subunits (LSU and SSU), the internal transcribed spacers (ITS1 and ITS2) with the 5.8S gene region, along with Tef (Translation elongation factor). The new species Ophiocordyceps mizoramensis, differs from other closely related species based on molecular phylogenetic relationships, genetic distance, and minor morphological characters related to sexual structures. The entomopathogenic Ophiocordyceps mizoramensis infected the host Polistes olivaceus (paper wasp) causing death to the whole colony of the hive.

scholarly journals Morphological and molecular identification of two new Ganoderma species on Casuarina equisetifolia from China

MycoKeys ◽  
2018 ◽  
Vol 34 ◽  
pp. 93-108 ◽  
Author(s):  
Jia-Hui Xing ◽  
Yi-Fei Sun ◽  
Yu-Li Han ◽  
Bao-Kai Cui ◽  
Yu-Cheng Dai
Keyword(s):  
Rna Polymerase Ii ◽  
Phylogenetic Analyses ◽  
Eastern China ◽  
Elongation Factor ◽  
Its Region ◽  
Distinct Species ◽  
Morphological Characters ◽  
White Rot ◽  
Translation Elongation ◽  
Medicinal Properties

Ganoderma is a cosmopolitan white rot fungal genus, famous for its medicinal properties. In the present study, two new Ganoderma species were collected from south-eastern China and described on the basis of morphological characters and phylogenetic analyses of sequences of the internal transcribed spacer (ITS) region, the translation elongation factor 1-α gene (EF1-α) and the second subunit of RNA polymerase II (RPB2). Specimens of both species were found on living trees of Casuarinaequisetifolia. Ganodermaangustisporum sp. nov. is characterised by its sessile basidiomata and almond-shaped, slightly truncate, narrow basidiospores (9–11.3 × 4–5.2 µm). Ganodermacasuarinicola sp. nov. is characterised by its strongly laccate reddish-brown pileal surface, luminous yellow to yellowish-brown cutis and ellipsoid, truncate basidiospores (9–10.2 × 5–6 µm). The two new species are compared with their related taxa. Phylogenetic analyses confirmed that G.angustisporum and G.casuarinicola are distinct species within Ganoderma.

scholarly journals Phylogenetic analyses and morphological characters reveal two new species of Ganoderma from Yunnan province, China

MycoKeys ◽  
2021 ◽  
Vol 84 ◽  
pp. 141-162
Author(s):  
Jun He ◽  
Zong-Long Luo ◽  
Song-Ming Tang ◽  
Yong-Jun Li ◽  
Shu-Hong Li ◽  
...  
Keyword(s):  
New Species ◽  
Rna Polymerase Ii ◽  
Sequence Data ◽  
Phylogenetic Analyses ◽  
Elongation Factor ◽  
Morphological Characters ◽  
Pore Surface ◽  
Translation Elongation ◽  
Two New Species ◽  
Elongation Factor 1

Ganoderma dianzhongensesp. nov. and G. esculentumsp. nov. are proposed as two new species based on both phenotypic and genotypic evidences. Ganoderma dianzhongense is characterized by the stipitate basidiomata, laccate and oxblood red pileus, gray white pore surface, duplex context and broadly ellipsoid basidiospores (9.0–12.5 × 6.5–9.0 μm) with coarse interwall pillars. Ganoderma esculentum is characterized by its basidiomata with slender stipe, white pore surface, homogeneous pileus context, and slightly truncate, narrow basidiospores (8.0–12.5 × 5.0–8.0 µm). Phylogenetic analyses were carried out based on the internal transcribed spacer (ITS), translation elongation factor 1-α (TEF1-α) and the second subunit of RNA polymerase II (RPB2) sequence data. The illustrations and descriptions for the new taxa are provided.

The genus Xanthoconium (Boletaceae, Boletales) in tropical China

Phytotaxa ◽  
2017 ◽  
Vol 295 (3) ◽  
pp. 246 ◽  
Author(s):  
ZHI-QUN LIANG ◽  
HUI CHAI ◽  
SHUAI JIANG ◽  
ZHENG-KUN YE ◽  
NIAN-KAI ZENG
Keyword(s):  
Rna Polymerase Ii ◽  
Dna Sequences ◽  
Phylogenetic Analyses ◽  
Elongation Factor ◽  
Translation Elongation ◽  
Line Drawings ◽  
Golden Yellow ◽  
Molecular Phylogenetic ◽  
Tropical China ◽  
Elongation Factor 1

The collections of Xanthoconium from tropical China are investigated on the basis of morphology and molecular phylogenetic analyses of DNA sequences from the nuc 28S rDNA D1-D2 domains (28S), the translation elongation factor 1-α gene (TEF1) and RNA polymerase II second largest subunit gene (RPB2). Two species are recognized in the region, one is the previously described taxon: X. sinensis, the other is described as new: X. fusciceps. Xanthoconium fusciceps is morphologically characterized by a dark brown pileus with a rugulose or pitted surface, non-staining hymenophore and context, golden yellow basidiospores, cystidia with pale yellowish brown, yellowish brown to golden brown pigments, and uninflated hyphae in the pileipellis. Detailed descriptions, color photos of fresh basidiomata and line-drawings of microstructures of the two taxa are presented.

Sign in / Sign up

Export Citation Format

Share Document