During a survey of endophytic fungi in aquatic plants collected from Tibet, PR China, a novel species,
was isolated from
. This novel species differs from other species of the genus
by its finely ...verrucose, obovoid, ellipsoidal-obovoid and occasionally subglobose conidia. Phylogenetic analysis of the combined sequences of the internal transcribed spacers (ITS) and the translation elongation factor 1-alpha gene (
) confirmed that the isolated strain represents a member of the genus
. A full description, illustrations and a phylogenetic tree showing the position of
are provided.
During an investigation of the diversity of aquatic hyphomycetes from southern China, two interesting isolates were collected. These two isolates were cultured and sequenced, and a BLAST search of ...their LSU sequences against data in GenBank revealed that the closest related taxa were in the genus
Microthyrium
. Phylogenetic analyses, based on the combined sequence data from the internal transcribed spacer (ITS) and large nuclear subunit ribosomal DNA (LSU), revealed that our isolates belong to the Microthyriaceae. Combined morphological characters allowed us to describe our isolates as two new genera and species in Microthyriaceae, named as:
Keqinzhangia aquatica
and
Pseudocoronospora hainanense
. The full descriptions, illustrations, and a phylogenetic tree showing the position of the two new genera were provided in this paper.
The family Microthyriaceae is represented by relatively few mycelial cultures and DNA sequences; as a result, the taxonomy and classification of this group of organisms remain poorly understood. ...During the investigation of the diversity of aquatic hyphomycetes from southern China, several isolates were collected. These isolates were cultured and sequenced and a BLAST search of its LSU sequences against data in GenBank revealed that the closest related taxa are in the genus
. Phylogenetic analyses, based on the combined sequence data from the internal transcribed spacers (ITS) and the large subunit (LSU), revealed that these isolates represent eight new taxa in Microthyriaceae, including two new genera,
and
and six new species,
,
,
,
,
and
. These new taxa are described, illustrated for their morphologies and compared with similar taxa. In addition, two new combinations are proposed in this family.
The asexual taxon
, collected from submerged dicotyledonous leaves in Hainan, China, is described and illustrated herein.
is characterized by macronematous, semimacronematous, septate and pigmented ...conidiophores and acrogenous, long lunate, vermiform to sigmoid, hyaline conidia with an eccentric basal appendage. Complete sequences of internal transcribed spacer (ITS) and partial sequences of nuclear large subunits ribosomal DNA (LSU) genes are provided. Phylogenetic analyses of combined ITS and LSU sequences revealed its placement in the Chaetosphaeriaceae. The new fungus is compared with morphologically similar genera.
Two isolates from Canada and the USA (UAMH 7122 and UAMH 7211, respectively) previously identified as
were studied by morphology and six-locus phylogeny (
, ITS,
,
,
and
). UAMH 7122 and UAMH 7211 ...are morphologically related but phylogenetically distinct from
(≡
) and
. Hence, UAMH 7122 and UAMH 7211 are described as a new species,
sp. nov. with UAMH 7211 as the holotype. The characters of this species include some phialides proliferating by holoblastic extension of phialides and conidia clavate, subcylindrical or cylindrical ellipsoid, or dumbbell-shaped, dark brown to olivaceous grey when mature, longitudinally striate, 10.3-12.3×3-3.8 µm. A key to the species of
is provided.
Notes for genera: Ascomycota Wijayawardene, Nalin N.; Hyde, Kevin D.; Rajeshkumar, Kunhiraman C. ...
Fungal diversity,
09/2017, Volume:
86, Issue:
1
Journal Article
Peer reviewed
Open access
Knowledge of the relationships and thus the classification of fungi, has developed rapidly with increasingly widespread use of molecular techniques, over the past 10–15 years, and continues to ...accelerate. Several genera have been found to be polyphyletic, and their generic concepts have subsequently been emended. New names have thus been introduced for species which are phylogenetically distinct from the type species of particular genera. The ending of the separate naming of morphs of the same species in 2011, has also caused changes in fungal generic names. In order to facilitate access to all important changes, it was desirable to compile these in a single document. The present article provides a list of generic names of
Ascomycota
(approximately 6500 accepted names published to the end of 2016), including those which are lichen-forming. Notes and summaries of the changes since the last edition of ‘Ainsworth & Bisby’s Dictionary of the Fungi’ in 2008 are provided. The notes include the number of accepted species, classification, type species (with location of the type material), culture availability, life-styles, distribution, and selected publications that have appeared since 2008. This work is intended to provide the foundation for updating the ascomycete component of the “Without prejudice list of generic names of
Fungi
” published in 2013, which will be developed into a list of protected generic names. This will be subjected to the XIXth International Botanical Congress in Shenzhen in July 2017 agreeing to a modification in the rules relating to protected lists, and scrutiny by procedures determined by the Nomenclature Committee for Fungi (NCF). The previously invalidly published generic names
Barriopsis
,
Collophora
(as
Collophorina
),
Cryomyces
,
Dematiopleospora
,
Heterospora
(as
Heterosporicola
),
Lithophila
,
Palmomyces
(as
Palmaria
) and
Saxomyces
are validated, as are two previously invalid family names,
Bartaliniaceae
and
Wiesneriomycetaceae
. Four species of
Lalaria
, which were invalidly published are transferred to
Taphrina
and validated as new combinations.
Catenomycopsis
Tibell & Constant. is reduced under
Chaenothecopsis
Vain., while
Dichomera
Cooke is reduced under
Botryosphaeria
Ces. & De Not. (Art. 59).
ABSTRACT A new species of Mahabalella B. Sutton & S. D. Patil was isolated from decaying leaves of an unidentified plant, during a survey in the Charles Darwin Ecological Refuge in Igarassu, ...Pernambuco, Brazil, in June 2018. The new species is morphologically distinguishable from the other Mahabalella species by the size of their conidia, conidiogenous cells and setae. In this study, the morphological descriptions, illustrations and cultural characteristics for Mahabalella pernambucana are provided, as well as a key to species of this genus. Total DNA from the isolate was extracted, and four genes were partially sequenced (nLSU, ITS cluster, TEF1 alpha, and beta tubulin). Based on the nLSU analysis, the phylogenetic position of the new species was determined within the Sordariomycetes, Ascomycota, as a sister genus to Neotracylla, in the Tracyllaceae family.
Two interesting fungi belonging to the genus Cordana have been isolated recently in Spain from plant debris. Both are proposed here as new species, described and illustrated. Cordana mercadiana sp. ...nov. produces 0-1-septate conidia, with a prominent basal scar. Cordana verruculosa sp. nov. differs from the other species of the genus by its unique combination of aseptate, verruculose and small conidia. Both species are compared morphologically with other species of Cordana and their identities supported by the analysis of rDNA sequences. LSU sequence analysis revealed the congeneric relationship of Cordana and Pseudobotrytis; the members of both genera are in a well supported monophyletic lineage that appears to be related to the Coniochaetales but remains incertae sedis within the Sordariomycetes. To establish nomenclatural stability of the genus Cordana, an isolate of C. pauciseptata is designed here as epitype and the two species of Pseudobotrytis are transferred to Cordana. A dichotomous key is provided to identify the currently accepted species of Cordana.
Riparian forests are important to aquatic ecosystems and produce large quantities of organic matter that are recycled by the microbial community that includes microscopic fungi. The aim of this study ...was to unveil and compare the diversity of aquatic hyphomycetes associated to submerged leaf litter of tropical lotic and lentic environments in the Atlantic Forest of Northeast Brazil. Six sampling events were carried out in six points of two study areas: Biological Reserve “Mata da Chuva” (MC) and Environmental Protection Area “Lagoa da Mata” (LM), in Pernambuco, Brazil. Twenty three taxa of hyphomycetes were identified resulting in 87 occurrences. In the lake LM, 13 taxa of hyphomycetes were identified with 34 occurrences and in the MC (stream), 20 taxa with 53 occurrences. Ten species were common to both areas. Diversity indices and fungal biomass (ergosterol) were mostly higher in the lotic system. The fungal community analysis did not show any structure regarding sampling periods or sampling points within an area, however the two areas are different. Although the turbulence of the water is considered important for the development of these aquatic fungi, it is possible to find a diverse community of hyphomycetes and considerable fungal biomass in the lentic environment.
•23 taxa of hyphomycetes registered in aquatic systems of Atlantic Forest in Brazil.•Tropical lake and stream present mycota differing at least 40 %.•A diverse community of aquatic hyphomycetes is found tropical lentic environments.•Ergosterol indicates fungal biomass within the range of reports for tropical regions.•This is a first study in lentic environment of the Brazilian Northeast.
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