Setomelanomma holmii (Pleosporales, Phaeosphaeriaceae) on living spruce twigs in Europe and North America

2002 ◽  
Vol 80 (11) ◽  
pp. 1209-1215 ◽  
Author(s):  
Amy Y Rossman ◽  
David F Farr ◽  
Lisa A Castlebury ◽  
Robert Shoemaker ◽  
Alemu Mengistu

Setomelanomma holmii M. Morelet, previously known only from the type specimen in France, was discovered in the U.S.A. (Kansas and Wisconsin) and Canada (Ontario) on living twigs of spruce (Picea pungens and Picea glauca). This fungus was grown from ascospores and compared with the ex-holotype culture. Morphology and ITS rDNA sequence similarities indicate that S. holmii belongs in the Pleosporales, Phaeosphaeriaceae. Sequence analysis of the SSU nrDNA places S. holmii in a clade containing members of the Leptosphaeriaceae and Phaeosphaeriaceae. Setomelanomma holmii is redescribed and illustrated based on the holotype and North American specimens.Key words: Loculoascomycetes, Phaeosphaeriaceae, Picea, Pleosporales, needle chlorosis.


2000 ◽  
Vol 21 (1) ◽  
pp. 3-12 ◽  
Author(s):  
M MARTIN ◽  
E HIDALGO ◽  
A ALTES ◽  
G MORENO


Check List ◽  
2020 ◽  
Vol 16 (3) ◽  
pp. 743-747
Author(s):  
Carlos Alberto Fragoso de Souza ◽  
Diogo Xavier Lima ◽  
Diogo Paes da Costa ◽  
Catarina Letícia Ferreira de Lima ◽  
Erika Valente de Medeiros ◽  
...  

Two specimens of Mucor variicolumellatus L. Wagner & G. Walther were isolated from soil samples collected in an upland rainforest area located in Pernambuco state, Brazil. Their identity were confirmed by morphophysiology and ITS rDNA sequence analysis. Both specimens are distinguished from other species within the Mucor circinelloides complex by producing obovoid, ovate and strawberry-shaped columellae. A detailed description and illustration of the specimens are presented. This is the first record of M. variicolumellatus in the Neotropics.



Check List ◽  
2020 ◽  
Vol 16 (4) ◽  
pp. 901-904
Author(s):  
Camila Melo Gonçalves ◽  
Rafael José Vilela de Oliveira ◽  
Rejane Maria Ferreira da Silva ◽  
Carlos Alberto Fragoso de Souza ◽  
Diogo Xavier Lima ◽  
...  

During a study on filamentous fungi in the soil of mountainous environments in the state of Minas Gerais, Brazil, one specimen of Mortierella verticillata Linnem. was isolated. Fungal identity was confirmed by morphology and ITS rDNA sequence analysis. This study reports the first occurrence of M. verticillata in South America. This species is distinguished by its monopodial sporangiophores growing on aerial hyphae of verticillate branches, and single-spored sporangia finely ornamented with a diffluent wall. In this manuscript, the specimen is described and illustrated, and the distribution of this species is discussed.



2001 ◽  
Vol 91 (9) ◽  
pp. 905-912 ◽  
Author(s):  
P. D. Collopy ◽  
M. L. Largeteau-Mamoun ◽  
C. P. Romaine ◽  
D. J. Royse

Molecular phylogenetic analyses were performed on 40 isolates of Verticillium fungicola collected from various Pennsylvania mushroom farms in 1999 and 28 isolates of Verticillium spp. collected during the last 50 years from various geographic locations. Sequence analysis of internal transcribed spacers 1 and 2 (ITS1 and ITS2) and 5.8S regions of the nuclear ribosomal DNA (rDNA) transcriptional unit and analysis of random amplified polymorphic DNA (RAPD) data were performed for the 68 isolates of Verticillium spp. Identical rDNA sequences were obtained for all 40 Pennsylvania isolates collected during 1999, 13 North American isolates collected during the last 50 years, and the ex-type strain of V. fungicola var. aleophilum. Sequence analysis of European isolates revealed a close relationship to the ex-type strain V. fungicola var. fungicola. No European-like isolates of V. fungicola var. fungicola were detected in the collection of North American isolates examined. Results from six decamer RAPD primers strongly indicate the presence of a clonal population of V. fungicola among Pennsylvania isolates. In addition, RAPD data delineated a Korean isolate (DC130) and ex-type strain V. fungicola var. aleophilum from the North American group. Virulence assays, based on spore inoculation of mushroom pilei, revealed variation corresponding to each neighbor-joining and RAPD grouping. All isolates with rDNA sequence and RAPD grouping similarity to ex-type strains V. fungicola var. aleophilum and V. fungicola var. fungicola displayed the highest level of virulence. Based on rDNA sequence and RAPD analyses, isolates displaying reduced or no virulence were distantly related to these two varieties. All results obtained for the analyses of ex-type strain V. fungicola var. flavidum suggested that this fungal isolate should not be considered a variety of V. fungicola, but rather a distinct species.





MycoKeys ◽  
2019 ◽  
Vol 47 ◽  
pp. 35-51 ◽  
Author(s):  
Elias Polemis ◽  
Georgios Konstantinidis ◽  
Vassiliki Fryssouli ◽  
Monica Slavova ◽  
Triantafyllos Tsampazis ◽  
...  

Knowledge on the diversity of hypogeous sequestrate ascomycetes is still limited in the Balkan Peninsula. A new species of truffle, Tuberpulchrosporum, is described from Greece and Bulgaria. Specimens were collected from habitats dominated by various oak species (i.e. Quercusilex, Q.coccifera, Q.robur) and other angiosperms. They are morphologically characterised by subglobose, ovoid to irregularly lobed, yellowish-brown to dark brown ascomata, usually with a shallow basal cavity and surface with fissures and small, dense, almost flat, trihedral to polyhedral warts. Ascospores are ellipsoid to subfusiform, uniquely ornamented, crested to incompletely reticulate and are produced in (1–)2–8-spored asci. Hair-like, hyaline to light yellow hyphae protrude from the peridium surface. According to the outcome of ITS rDNA sequence analysis, this species forms a distinct well-supported group in the Aestivum clade, with T.panniferum being the closest phylogenetic taxon.



Check List ◽  
2020 ◽  
Vol 16 (4) ◽  
pp. 907-910
Author(s):  
Camila Melo Gonçalves ◽  
Rafael José Vilela de Oliveira ◽  
Rejane Maria Ferreira da Silva ◽  
Carlos Alberto Fragoso de Souza ◽  
Diogo Xavier Lima ◽  
...  

During a study on filamentous fungi in the soil of mountainous environments in the state of Minas Gerais, Brazil, one specimen of Mortierella verticillata Linnem. was isolated. Fungal identity was confirmed by morphology and ITS rDNA sequence analysis. This study reports the first occurrence of M. verticillata in South America. This species is distinguished by its monopodial sporangiophores growing on aerial hyphae of verticillate branches, and single-spored sporangia finely ornamented with a diffluent wall. In this manuscript, the specimen is described and illustrated, and the distribution of this species is discussed.



Mycotaxon ◽  
2019 ◽  
Vol 134 (3) ◽  
pp. 447-455
Author(s):  
Adel Pordel ◽  
Amirreza Amirmijani ◽  
Mohammad Javan-Nikkhah

During a survey of sedge plants in northern Iran, three specimens of Pseudopyricularia cyperi were isolated from Cyperus sp. Their taxonomical identity was established by their spore and conidiophore morphology and ITS rDNA sequence analysis. The specimens are described and illustrated. Pseudopyricularia cyperi is a new record for Iran.



Phytotaxa ◽  
2013 ◽  
Vol 105 (2) ◽  
pp. 51 ◽  
Author(s):  
HUAN-DI ZHENG ◽  
WEN-YING ZHUANG

A new species, Roseodiscus sinicus is described and illustrated. The fungus, collected on stems of an unknown monocotyledon, is characterized by dirty white apothecia, large and thin-walled ectal excipulum cells, Calycina-type ascus apical ring, and ellipsoid, multiguttulate ascospores. The placement of the new species in Roseodiscus was also supported by ITS rDNA sequence analysis. The distinctions between the new species and related taxa are discussed.



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