0000000000953082
AUTHOR
Eva Barreno Rodríguez
Presence of multiple group I introns closely related to bacteria and fungi in plastid 23S rRNAs of lichen-forming Trebouxia
The chloroplast-encoded large subunit ribosomal RNA gene of several free-living green algae contains group I introns at Escherichia coli genic positions 1917, 1931, 1951, and 2449. Herein we report the presence of group I introns at these positions within the chloroplast-encoded large subunit ribosomal RNA gene of several lichen-forming green algae belonging to the Trebouxia genus. In contrast to the introns inserted at position 2449, all introns inserted at positions 1917, 1931, and 1951 contained LAGLIDADG homing endonuclease genes. Phylogenetic analyses show that: (i) introns inserted at positions 1917, 1931, and 1951 are closely related to introns located at homologous insertion sites i…
Four lichen species new to Spain
Se presentan cuatro nuevas citas de líquenes de España, concretamente Aspicilia ruceniuro, Lecanora stenotropa, Vezdaea leprosa y Xanthoparmelia plitii. Las especies probablemente no son raras pero habían sido obviadas, bien por ser inconspicuas bien por ser similares morfológicamente a otras especies. Four species of Lichens are reported as new to Spain, namely Aspicilia moenium, Lecanora stenotropa, Vezdaea leprosa aud Xanthoparmelia plitii. The species are probably not rare, but overlooked, since they are either inconspicuous or morphologically similar to other species. Eva.Barreno@uv.es