For several millennia, leaves of Echium amoenum Fisch. & C. A. Mey., an important Iranian medicin... more For several millennia, leaves of Echium amoenum Fisch. & C. A. Mey., an important Iranian medicinal plant with nutritional value as nutraceutical, have been used as tea for the treatment of several conditions, including inflammation. The nutritional value of intake of E. amoenum tea has mainly been correlated to its rich content of mainly water-soluble antioxidants. Although the entire plant is utilized, only natural products of the flowers have previously been thoroughly investigated. The rare natural products bis(3-(3,4-dihydroxyphenyl)-1-methoxy-1-oxopropan-2-yl)-1-(3,4-dihydroxyphenyl)-6,7-dihydroxy-1,2-dihydronaphthalene-2,3-dicarboxylate, 4-Oxy-(E)-caffeoyl-2,3-dihydroxybutanoic acid methyl ester and 4-Oxy-(Z)-caffeoyl-2,3-dihydroxybutanoic acid methyl ester, in addition to the widely distributed compounds rosmarinic acid methyl ester and (E)-caffeic acid, were purified and characterized from leaves of Echium amoenum. The structures were determined by a combination of several ...
Based on morphometric and molecular methods, the taxonomy of the infraspecific taxa ofFuscidea cy... more Based on morphometric and molecular methods, the taxonomy of the infraspecific taxa ofFuscidea cyathoides(Ach.) V. Wirth & Vězda, var.corticola(Fr.) Kalb and var.sorediata(H. Magn.) Poelt, has been assessed. No formal taxonomic recognition should be attributed to the morphological and ecological variation. Accordingly, var.corticolaand var.sorediataare synonymized withF.cyathoidesvar.cyathoides. New synonyms at the specific level areFuscidea fagicola(Zschacke) Hafellner & Türk andF.stiriaca(A. Massal.) Hafellner.
The species of Massalongia recorded and described from the Southern Hemisphere are revised and it... more The species of Massalongia recorded and described from the Southern Hemisphere are revised and it is shown that only one is present; M. patagonica which is widespread, with populations in Australia and New Zealand that differ from the South American populations, but at present best regarded as part of the variation of that species. Records from this hemisphere of all other species placed in the genus are incorrect. The type species, M. carnosa, is restricted to the Northern Hemisphere. Two species, M. antarctica and M. novozelandica cannot be identified precisely due to lack of sufficient type material and with the types as the only collections known of these, but none belongs in Massalongia according to available data. Massalongia griseolobata (from Gough Isl.) is shown here to belong in the Pannariaceae and is part of the parmelielloid clade. M. intricata (from South Georgia) and M. olechiana (from South Shetland) have both recently been correctly transferred to the genus Steinera...
The new species Miriquidica majae Tønsberg is described from northern boreal forests in Central N... more The new species Miriquidica majae Tønsberg is described from northern boreal forests in Central Norway where it is restricted to trunks of Picea abies, mainly in oldgrowth forests. Chemically M. majae recalls Myochroidea porphyrospoda, but is distinct by the combination of the endosubstratal or indistinct, white thallus in non-sorediate parts, the scattered, effuse soralia, and the lack of areoles that are not completely sorediate. The apothecia are rare and usually poorly developed. The sequences from the ITS2 region of the two species differ markedly.publishedVersio
The phylogeny of the family Micareaceae and the genus Micarea was studied using mitochondrial sma... more The phylogeny of the family Micareaceae and the genus Micarea was studied using mitochondrial small subunit ribosomal DNA sequences. Phylogenetic reconstructions were performed using Bayesian MCMC tree sampling and a maximum likelihood approach. The Micareaceae in ...
Ancestral state reconstructions of morphological or ecological traits on molecular phylogenies ar... more Ancestral state reconstructions of morphological or ecological traits on molecular phylogenies are becoming increasingly frequent. They rely on constancy of character state change rates over trees, a correlation between neutral genetic change and phenotypic change, as well as ...
Extensive regional droughts are already a major problem on all inhabited continents and severe re... more Extensive regional droughts are already a major problem on all inhabited continents and severe regional droughts are expected to become an increasing and extended problem in the future. Consequently, extended use of available drought resistant food plants should be encouraged. Bromelia laciniosa , Neoglaziovia variegata and Encholirium spectabile are excellent candidates in that respect because they are established drought resistant edible plants from the semi-arid Caatinga region. From a food safety perspective, increased utilization of these plants would necessitate detailed knowledge about their chemical constituents. However, their chemical compositions have previously not been determined. For the first time, the non-polar constituents of B. laciniosa , N. variegata and E. spectabile have been identified. This is the first thorough report on natural products from N. variegata , E. spectabile , and B. laciniosa . Altogether, 20 non-polar natural products were characterized. The i...
For several millennia, leaves of Echium amoenum Fisch. & C. A. Mey., an important Iranian medicin... more For several millennia, leaves of Echium amoenum Fisch. & C. A. Mey., an important Iranian medicinal plant with nutritional value as nutraceutical, have been used as tea for the treatment of several conditions, including inflammation. The nutritional value of intake of E. amoenum tea has mainly been correlated to its rich content of mainly water-soluble antioxidants. Although the entire plant is utilized, only natural products of the flowers have previously been thoroughly investigated. The rare natural products bis(3-(3,4-dihydroxyphenyl)-1-methoxy-1-oxopropan-2-yl)-1-(3,4-dihydroxyphenyl)-6,7-dihydroxy-1,2-dihydronaphthalene-2,3-dicarboxylate, 4-Oxy-(E)-caffeoyl-2,3-dihydroxybutanoic acid methyl ester and 4-Oxy-(Z)-caffeoyl-2,3-dihydroxybutanoic acid methyl ester, in addition to the widely distributed compounds rosmarinic acid methyl ester and (E)-caffeic acid, were purified and characterized from leaves of Echium amoenum. The structures were determined by a combination of several ...
Based on morphometric and molecular methods, the taxonomy of the infraspecific taxa ofFuscidea cy... more Based on morphometric and molecular methods, the taxonomy of the infraspecific taxa ofFuscidea cyathoides(Ach.) V. Wirth & Vězda, var.corticola(Fr.) Kalb and var.sorediata(H. Magn.) Poelt, has been assessed. No formal taxonomic recognition should be attributed to the morphological and ecological variation. Accordingly, var.corticolaand var.sorediataare synonymized withF.cyathoidesvar.cyathoides. New synonyms at the specific level areFuscidea fagicola(Zschacke) Hafellner & Türk andF.stiriaca(A. Massal.) Hafellner.
The species of Massalongia recorded and described from the Southern Hemisphere are revised and it... more The species of Massalongia recorded and described from the Southern Hemisphere are revised and it is shown that only one is present; M. patagonica which is widespread, with populations in Australia and New Zealand that differ from the South American populations, but at present best regarded as part of the variation of that species. Records from this hemisphere of all other species placed in the genus are incorrect. The type species, M. carnosa, is restricted to the Northern Hemisphere. Two species, M. antarctica and M. novozelandica cannot be identified precisely due to lack of sufficient type material and with the types as the only collections known of these, but none belongs in Massalongia according to available data. Massalongia griseolobata (from Gough Isl.) is shown here to belong in the Pannariaceae and is part of the parmelielloid clade. M. intricata (from South Georgia) and M. olechiana (from South Shetland) have both recently been correctly transferred to the genus Steinera...
The new species Miriquidica majae Tønsberg is described from northern boreal forests in Central N... more The new species Miriquidica majae Tønsberg is described from northern boreal forests in Central Norway where it is restricted to trunks of Picea abies, mainly in oldgrowth forests. Chemically M. majae recalls Myochroidea porphyrospoda, but is distinct by the combination of the endosubstratal or indistinct, white thallus in non-sorediate parts, the scattered, effuse soralia, and the lack of areoles that are not completely sorediate. The apothecia are rare and usually poorly developed. The sequences from the ITS2 region of the two species differ markedly.publishedVersio
The phylogeny of the family Micareaceae and the genus Micarea was studied using mitochondrial sma... more The phylogeny of the family Micareaceae and the genus Micarea was studied using mitochondrial small subunit ribosomal DNA sequences. Phylogenetic reconstructions were performed using Bayesian MCMC tree sampling and a maximum likelihood approach. The Micareaceae in ...
Ancestral state reconstructions of morphological or ecological traits on molecular phylogenies ar... more Ancestral state reconstructions of morphological or ecological traits on molecular phylogenies are becoming increasingly frequent. They rely on constancy of character state change rates over trees, a correlation between neutral genetic change and phenotypic change, as well as ...
Extensive regional droughts are already a major problem on all inhabited continents and severe re... more Extensive regional droughts are already a major problem on all inhabited continents and severe regional droughts are expected to become an increasing and extended problem in the future. Consequently, extended use of available drought resistant food plants should be encouraged. Bromelia laciniosa , Neoglaziovia variegata and Encholirium spectabile are excellent candidates in that respect because they are established drought resistant edible plants from the semi-arid Caatinga region. From a food safety perspective, increased utilization of these plants would necessitate detailed knowledge about their chemical constituents. However, their chemical compositions have previously not been determined. For the first time, the non-polar constituents of B. laciniosa , N. variegata and E. spectabile have been identified. This is the first thorough report on natural products from N. variegata , E. spectabile , and B. laciniosa . Altogether, 20 non-polar natural products were characterized. The i...
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