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dc.contributor.author
Fazio, Alejandra Teresa  
dc.contributor.author
Adler, Monica Teresa  
dc.contributor.author
Parnmen, Sittiporn  
dc.contributor.author
Lücking, Robert  
dc.contributor.author
Maier, Marta Silvia  
dc.date.available
2019-10-21T18:30:54Z  
dc.date.issued
2018-04  
dc.identifier.citation
Fazio, Alejandra Teresa; Adler, Monica Teresa; Parnmen, Sittiporn; Lücking, Robert; Maier, Marta Silvia; Production of the bioactive pigment elsinochrome A by a cultured mycobiont strain of the lichen Graphis elongata; Springer Heidelberg; Mycological Progress; 17; 4; 4-2018; 479-487  
dc.identifier.issn
1617-416X  
dc.identifier.uri
http://hdl.handle.net/11336/86688  
dc.description.abstract
We report the production of the perylenequinone pigment elsinochrome A in aposymbiotic culture of the mycobiont of the crustose epiphytic lichen Graphis elongata Zenker (Lecanoromycetes), collected in Argentina (Buenos Aires). The substance was not detected in the lichenized thallus (using HPLC techniques) and is otherwise only known from one unrelated lichen and a few genera of non-lichenized, plant-pathogenic fungi in the class Dothideomycetes. The phylogenetic affinities of the lichen mycobiont and the cultured fungus were confirmed using DNA sequence data of the mitochondrial small subunit rDNA (mtSSU), which place the lichen fungus into the Allographa clade within Graphidaceae. The mycobiont pigment was purified and characterized by spectroscopic methods. This is the first case where a rare pigment, otherwise known from non-lichenized, plant-pathogenic fungi, is produced in aposymbiotic culture of a lichen mycobiont, while, at the same time, being absent from the lichen thallus itself. Based on this finding, we discuss the previously postulated hypothesis that lichen mycobionts maintain secondary metabolic pathways of non-lichenized ancestors in their genome, while gene expression and production of metabolites is suppressed in the lichenized state due to toxicity to the photobiont.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Springer Heidelberg  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
AXENIC CULTURE  
dc.subject
ELSINOCHROME A  
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GRAPHIS ELONGATA  
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LICHEN  
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PERYLENEQUINONES  
dc.subject.classification
Micología  
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Ciencias Biológicas  
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CIENCIAS NATURALES Y EXACTAS  
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Química Orgánica  
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Ciencias Químicas  
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS  
dc.title
Production of the bioactive pigment elsinochrome A by a cultured mycobiont strain of the lichen Graphis elongata  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2019-09-27T14:52:00Z  
dc.identifier.eissn
1861-8952  
dc.journal.volume
17  
dc.journal.number
4  
dc.journal.pagination
479-487  
dc.journal.pais
Alemania  
dc.journal.ciudad
Heidelberg  
dc.description.fil
Fil: Fazio, Alejandra Teresa. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Micología y Botánica. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Micología y Botánica; Argentina  
dc.description.fil
Fil: Adler, Monica Teresa. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Micología y Botánica. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Micología y Botánica; Argentina  
dc.description.fil
Fil: Parnmen, Sittiporn. National Institute of Health. Toxicology Center; Tailandia. Associate Researcher at the Field Museum; Estados Unidos  
dc.description.fil
Fil: Lücking, Robert. Associate Researcher at the Field Museum; Estados Unidos. Botanic Garden and Botanical Museum; Alemania  
dc.description.fil
Fil: Maier, Marta Silvia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Unidad de Microanálisis y Métodos Físicos en Química Orgánica. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Unidad de Microanálisis y Métodos Físicos en Química Orgánica; Argentina  
dc.journal.title
Mycological Progress  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://link.springer.com/10.1007/s11557-017-1374-1  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1007/s11557-017-1374-1