Three species of the lichenized fungus Roccella (Arthoniales, Euascomycetes), R.
canariensis, R. tuberculata and R. montagnei, were found to possess insertions in the first …

Lichen-forming fungi, in symbiotic associations with algae, frequently have nuclear small
subunit ribosomal DNA (SSU rDNA) longer than the 1,800 nucleotides typical for …

We have characterized structural features and the distribution pattern of nuclear group I
introns found in ribosomal DNA (rDNA) of closely related plant pathogenic fungi of the family …

Twenty-four new insertions were obtained from seven different locations in the nuclear 18S
rDNA for seven species of the lichen-forming fungal genus Physconia. They were analyzed …

Group I introns are commonly reported within nuclear SSU ribosomal DNA of eukaryotic
micro-organisms, especially in lichen-forming fungi. We have studied the primary and …

Ericoid mycorrhizal fungi form symbioses with the roots of members of the Ericales. Although
only two genera have been identified in culture, the taxonomic diversity of ericoid symbionts …

Insertions of less than 100 nt occurring in highly conserved regions of the small subunit
ribosomal DNA (SSU rDNA) may represent degenerate forms of the group-I introns …

The current nomenclature system of group I introns (see Cech, 1988; Michel & Westhof,
1990) has become insufficient to distinguish and categorize the complex collection of more …

A family of optional group-I introns was found near the 3′ end of the nuclear small subunit
rRNA genes in 61 out of 70 isolates of the deuteromycete mycorrhizal fungus Cenococcum …

A natural population of the lichen-forming ascomycetous fungus, Cladonia chlorophaea,
contained individuals with small subunit ribosomal DNA (SSU rDNA) of at least four different …