Alberto Miguel Stchigel

Universitat Rovira i Virgili | URV · Microbiology Unit

A new species, Apiosordaria nigeriensis, isolated from soil of Nigeria is described and illustrated. This fungus is characterized by its two-celled ascospores with spinulose walls and an apical germ pore surrounded by a dark area. Reexamination of Apiosordaria angulispora resulted in a new combination, Cercophora angulispora, based on the presence...

A new species, Apiosordaria nigeriensis, isolated from soil of Nigeria is described and illustrated. This fungus is characterized by its two-celled ascospores with spinulose walls and an apical germ pore surrounded by a dark area. Reexamination of Apiosordaria angulispora resulted in a new combination, Cercophora angulispora, based on the presence...

Three new thermotolerant species of Corynascus isolated from Indian and Argentinian soils are described and illustrated: C. sexualis sp. nov. characterised by small ascospores and the absence of a Myceliophthora anamorph (present in all other species of the genus); C. similis sp. nov. characterised by navicular ascospores with two lateral to sub-te...

Ascotricha canariensis sp. nov. (Xylariaceae, Ascomycetes) isolated from soil of the Canary Islands is described and illustrated. It belongs to the group of Ascotricha species with cylindrical asci and is differentiated from the other species by bearing ascomata with short, single or once-branched setae and by the presumed absence of an anamorph.

Ascotricha canariensis sp. nov. (Xylariaceae, Ascomycetes) isolated from soil of the Canary Islands is described and illustrated. It belongs to the group of Ascotricha species with cylindrical asci and is differentiated from the other species by bearing ascomata with short, single or once-branched setae and by the presumed absence of an anamorph.

Melanospora pascuensis sp. nov., isolated from soil of Easter Island, is described and illustrated. The ITS1, ITS2 and 5.8 S rRNA gene sequences are also provided. The fungus can be recognized by the setose perithecial ascomata and the peculiar ring-like structure surrounding the ascospore germ pores. It is compared with other species of Melanospor...

Fungal infections, especially those caused by opportunistic species, have become substantially more common in recent decades. Numerous species cause human infections, and several new human pathogens are discovered yearly. This situation has created an increasing interest in fungal taxonomy and has led to the development of new methods and approache...

Emericella indica sp. nov. and a peculiar morphological variant of E. quadrilineata are described and illustrated. The former is characterized by large, smooth, violet ascospores and the latter by apparently budding ascospores. Analysis of the sequences of the nuclear rDNA ITS region gene of these species and E. nidulans and E. variecolor support o...

During studies on soil Ascomycetes from many regions of the world, we have isolated numerous Gelasinospora strains. Gelasinospora is characterized by dark, pyriform or globose ascomata, cylindrical, fasciculate, stipitate and unitunicate asci, and one-celled, dark ascospores with ornamented walls. The ornamentation consist of pits or irregular ridg...

Ascotricha hispanica sp. nov. is described and illustrated. It is characterized by ostiolate ascomata with a translucent peridium and subdichotomously branched setae, cylindrical asci and oblate ascospores with an equatorial germ slit. It is compared with related species.

Emericella pluriseminata sp. nov. (Eurotiales, Ascomycota), isolated from Indian soil, is described and illustrated. It differs from the other species of the genus by having ascomata appearing very late, 16-spored asci, large, stellate, violet-brown ascospores and in lacking an anamorph.

Melanospora collipora sp. nov. is described from soil. The most noteworthy feature is the presence of a hyaline rim around the germ pores. Relationships of the new species to other members of Ceratostomataceae and Chaetomiaceae are discussed.