Original paper

Pertusaria paramerae (Pertusariales, Ascomycota), a species with variable secondary chemistry, and a new lichen record for Turkey

Halici, M. Gökhan; Kocakaya, Mustafa; Sweeney, Katarina; Fankhauser, Johnathon D.; Schmitt, Imke

Nova Hedwigia Band 91 Heft 1-2 (2010), p. 223 - 230

published: Aug 1, 2010

DOI: 10.1127/0029-5035/2010/0091-0223

BibTeX file

ArtNo. ESP050009101011, Price: 29.00 €

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Abstract

We report a new chemotype of the crustose lichen Pertusaria paramerae A.Crespo & Vê zda from a specimen collected in Turkey. Mitochondrial small subunit rDNA (mtSSU) sequences of P. paramerae collections from Spain, the country of the species' original description, and a specimen from Turkey are 100% identical. We present a phylogeny based on mtSSU rDNA that confirms the placement of Pertusaria paramerae in the Pertusaria s.str. group. HPLC analyses suggest the presence of 2'-O-methylperlatolic acid (major), thiophaninic acid (minor), and 2,4-dichloronorlichexanthone (trace) in the specimen collected in Turkey, and planaic acid (major), thiophaninic acid (minor), atranorin (trace), and an unidentified compound (trace) in a specimen collected in Spain. We propose that replacement of planaic acid by the structurally similar 2'-O-methylperlatolic acid and presence or absence of trace compounds are chemosyndromic variations that do not warrant recognition of a new species. We provide illustrations of morphological and micromorphological characters of P. paramerae.

Keywords

mtssu rdnamolecular phylogenylichenized fungihplclichen compoundschemosyndromic variation