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Journal articles on the topic 'Pseudevernia furfuracea'

Author: Grafiati

Published: 4 June 2021

Last updated: 2 February 2022

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1

Jensen, Manfred, Guido B. Feige, and Anna Waterkotte. "Mannitol-1-Phosphate Dehydrogenase in Pseudevernia Furfuracea." Lichenologist 23, no. 2 (April 1991): 187–96. http://dx.doi.org/10.1017/s0024282991000336.

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AbstractMannitol-1-phosphate dehydrogenase [EC 1.1.1.17] activity was demonstrated in extracts of Pseudevernia furfuracea and Hypogymnia physodes. The reaction was found to be highly substrate specific for fructose-6-phosphate/NADH or mannitol-1-phosphate/NAD+. The pH optimum for fructose-6-phosphate reduction was 7.1, and apparent Km values were 1.2 mM for fructose-6-phosphate and 20 μM for NADH. The reaction did not require Mg++ or Ca++. For conversion of mannitol-1-phosphate into mannitol, the occurrence of mannitol-1-phosphatase in Pseudevernia furfuracea is postulated.

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2

Tsurykau, А. G., and P. N. Bely. "Distribution of varieties of the lichen Pseudevernia furfuracea (Parmeliaceae) in Belarus." Vestnik of Orenburg State Pedagogical University. Electronic Scientific Journal, no. 35 (2020): 85–95. http://dx.doi.org/10.32516/2303-9922.2020.35.6.

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3

FERENCOVA, Zuzana, Ruth DEL PRADO, Israel PÉREZ-VARGAS, Consuelo HERNÁNDEZ-PADRÓN, and Ana CRESPO. "A discussion about reproductive modes of Pseudevernia furfuracea based on phylogenetic data." Lichenologist 42, no. 4 (June 3, 2010): 449–60. http://dx.doi.org/10.1017/s0024282909990739.

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AbstractTwo asexual reproductive strategies of the common lichen Pseudevernia furfuracea are described. Although the species propagates mainly by isidia, some specimens also show the development of soralia. Morphological, chemical and molecular analyses were performed on three such sorediate specimens from the Canary Islands, Morocco and Turkey. Maximum parsimony, maximum likelihood and Bayesian analyses indicate that: a) sorediate samples represent only a morphological variant of the reproductive mode and b) the separation of taxa (at species level or below) on the basis of their containing either olivetoric acid or physodic and oxyphysodic acids is not appropriate. In addition, a phylogenetic reconstruction of the genus Pseudevernia is presented for the first time. The tree shows two sister monophyletic clades, one containing American species (P. intensa, P. cladonia, P. consocians), and the second encompassing the P. furfuracea samples (including sorediate specimens). The biological and taxonomic significance of soralia in sorediate samples is discussed.

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4

Lenka, Demková, Baranová Beáta, Oboňa Jozef, Árvay Július, and Lošák Tomáš. "Assessment of air pollution by toxic elements on petrol stations using moss and lichen bag technique." Plant, Soil and Environment 63, No. 8 (September 4, 2017): 355–61. http://dx.doi.org/10.17221/297/2017-pse.

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Three moss (Pleurosium spp., Polytrichum spp., Rhytidiadelphus spp.) and two lichen taxa (Hypogymnia physodes L., Pseudevernia furfuracea L.), were exposed for four weeks in six petrol stations, two consecutive years (2015–2016), in urban area of the Prešov city (Slovakia), to assess accumulation of selected airborne elements Cd, Co, Cu, Fe, Hg, Mn, Ni, Pb and Zn. Significantly highest (P < 0.01) ability to accumulate Zn, Ni, Co and Fe was found in Pleurosium spp.; Pseudevernia furfuracea was determined the best accumulator of Hg, whereas Rhytidiadelphus spp. was found as the least suitable for this purpose. No significant differences in heavy metal accumulation between moss and lichen taxonomic group were found. Samples of conifer (used as a moss/lichen bag holder) showed significantly lower content of heavy metals compared to mosses and lichens. Major content of heavy metals trapped in the air around petrol stations, did not originate from the petrol combustion, but predominantly from the car body, which is mechanically disrupted during fuelling.

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5

Cansaran-Duman, Demet, Orhan Atakol, Íknur Atasoy, Didem Kahya, Sümer Aras, and Taylan Beyaztaş. "Heavy Metal Accumulation in Pseudevernia furfuracea (L.) Zopf from the Karabük Iron-Steel Factory in Karabük, Turkey." Zeitschrift für Naturforschung C 64, no. 9-10 (October 1, 2009): 717–23. http://dx.doi.org/10.1515/znc-2009-9-1018.

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Pseudevernia furfuracea (L.) Zopf lichen specimens were collected every 5 km starting from around an iron-steel factory located in the central area of Karabük province, up to Yenice Forest. Zn, Cu, Mn, Fe, Pb, Ni, Cd, Cr contents were analyzed in the samples collected from polluted and unpolluted areas. A Pseudevernia furfuracea (L.) Zopf sample from Yenice Forest was used as a control. The reason for this choise was the abundance of species diversity, and therefore sample collection might cause a very low impact on natural population density. The forest is among the 100 forested areas that must be urgently taken under protection according to WWF (World Wildlife Fund) researches. Results of the current study manifested significant variations among the contents of these elements between stations. As expected, the pollution sources, such as iron-steel factory, roads and railroads, industry, heavy traffic, and waste treatment plants, have major impact on the heavy metal accumulation in P. furfuracea (L.) Zopf, and, in accordance to their location, samples 8 and 10 displayed high element accumulation. Surprisingly, although Yenice Forest is under protection, results of our study showed that the region is becoming polluted by the infl uence of many pollution sources in the area. The present study also confirms the efficient metal accumulation capacity of lichens

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6

Tarawneh, Amer H. "Assessment of Lichens as Biomonitors of Heavy Metal Pollution in Selected Mining Area, Slovakia." Pakistan Journal of Analytical & Environmental Chemistry 22, no. 1 (June 23, 2021): 53–59. http://dx.doi.org/10.21743/pjaec/2021.06.07.

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Lichens have widely been used as bioindicators to reflect the quality of the environment. The present study was conducted to investigate the lichens diversity that grows on the surface of waste heaps from an abandoned old copper mine in Mlynky, Slovakia. In spite of the heavy metalcontaminated environment, we documented twenty species of lichens in the selected site. Taxonomically the most numerous group were represented by Cladonia with seven species, as well other species; namely, Acarospora fuscata, Cetraria islandica, Dermatocarpon miniatum, Hypogymnia physodes, Hypogymnia tubulosa, Lecanora subaurea, Lepraria incana, Physcia aipolia, Porpidia macrocarpa, Pseudevernia furfuracea, Rhizocarpon geographicum and Xanthoria parietina. The content of selected heavy metals (Cu, Fe, and Zn) in the predominant lichens Cetraria islandica, Cladonia digitata, Cladonia pyxidata, Hypogymnia physodes and Pseudevernia furfuracea were analyzed. The highest content of Cu, Fe, and Zn was found in Cladonia pyxidata collected from mine-spoil heaps with concentration 46 ± 4.4, 82.5 ± 22.6, 4.8 ± 1.6 mg/kg, respectively. Interestingly, Cladonia pyxidata collected from the forest surrounding the location showed 15 times lower concentration for Cu. Additionally, similar results were found for Fe and Zn.

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7

Elix, JA, JE Evans, and JL Parker. "A One-Step Synthesis of the Depsidone Furfuric Acid: Evidence for an Artifact in the Isolation From a Lichen." Australian Journal of Chemistry 40, no. 12 (1987): 2129. http://dx.doi.org/10.1071/ch9872129.

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The structurally unique depsidone furfuric acid (1) has been prepared in one step by the acid-catalysed alkylation of methyl p- orsellinate (6) or of atranorin (4) with physodalic acid (7). This mode of synthesis gives credence to the proposal that (1) is an artefact of the isolation procedure rather than a true metabolite of the lichen Pseudevernia furfuracea .

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8

Calchera, Anjuli, Francesco Dal Grande, Helge B. Bode, and Imke Schmitt. "Biosynthetic Gene Content of the ‘Perfume Lichens’ Evernia prunastri and Pseudevernia furfuracea." Molecules 24, no. 1 (January 8, 2019): 203. http://dx.doi.org/10.3390/molecules24010203.

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Lichen-forming fungi produce a vast number of unique natural products with a wide variety of biological activities and human uses. Although lichens have remarkable potential in natural product research and industry, the molecular mechanisms underlying the biosynthesis of lichen metabolites are poorly understood. Here we use genome mining and comparative genomics to assess biosynthetic gene clusters and their putative regulators in the genomes of two lichen-forming fungi, which have substantial commercial value in the perfume industry, Evernia prunastri and Pseudevernia furfuracea. We report a total of 80 biosynthetic gene clusters (polyketide synthases (PKS), non-ribosomal peptide synthetases and terpene synthases) in E. prunastri and 51 in P. furfuracea. We present an in-depth comparison of 11 clusters, which show high homology between the two species. A ketosynthase (KS) phylogeny shows that biosynthetic gene clusters from E. prunastri and P. furfuracea are widespread across the Fungi. The phylogeny includes 15 genomes of lichenized fungi and all fungal PKSs with known functions from the MIBiG database. Phylogenetically closely related KS domains predict not only similar PKS architecture but also similar cluster architecture. Our study highlights the untapped biosynthetic richness of lichen-forming fungi, provides new insights into lichen biosynthetic pathways and facilitates heterologous expression of lichen biosynthetic gene clusters.

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9

Manrique, Esteban, Fernando López, and Fernando Lopez. "Intrathalline Variation in Concentration of Lichen Substances in Pseudevernia furfuracea." Bryologist 94, no. 2 (1991): 207. http://dx.doi.org/10.2307/3243698.

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10

Aras, S., T. Beyaztaş, D. Cansaran-Duman, and E. Gökçe-Gündüzer. "Evaluation of genotoxicity of Pseudevernia furfuracea (L.) Zopf by RAPD analysis." Genetics and Molecular Research 10, no. 4 (2011): 3760–70. http://dx.doi.org/10.4238/2011.december.15.4.

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11

Sarikurkcu, Cengiz, Mehmet Sefa Kocak, Mustafa Calapoglu, Cigdem Ocal, and Bektas Tepe. "Biological and phytochemical evaluation: Pseudevernia furfuracea as an alternative multifunctional agent." Journal of Functional Foods 24 (June 2016): 11–17. http://dx.doi.org/10.1016/j.jff.2016.03.022.

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12

Malaspina, Paola, Paolo Giordani, Paolo Modenesi, Maria Luisa Abelmoschi, Emanuele Magi, and Francesco Soggia. "Bioaccumulation capacity of two chemical varieties of the lichen Pseudevernia furfuracea." Ecological Indicators 45 (October 2014): 605–10. http://dx.doi.org/10.1016/j.ecolind.2014.05.026.

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13

TRETIACH, Mauro, Paola CRISAFULLI, Elena PITTAO, Simona RININO, Enrica ROCCOTIELLO, and Paolo MODENESI. "Isidia ontogeny and its effect on the CO2 gas exchanges of the epiphytic lichen Pseudevernia furfuracea (L.) Zopf." Lichenologist 37, no. 5 (September 2005): 445–62. http://dx.doi.org/10.1017/s0024282905014982.

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The development of isidia in thalli of Pseudevernia furfuracea from the Carnic Alps (North-eastern Italy), and the effects of these structures on CO2 gas exchanges were investigated. The ontogenetic events were studied by comparison of sections stained with different histochemical tests and SEM observations. A high cell turnover rate in both symbiotic partners is the first sign of isidium development, followed by an increased aplanosporogenesis of algae and growth of neighbouring medullary hyphae which become oriented upwards. Large nuclei and an intense cytoplasm activity characterize the mycobiont cells. The surface of very young isidia shows an irregular structure of spherical to ovoid protruding tips of perpendicular cortical hyphae, that are later organised in a pseudomeristematic area similar to that observed in the apex of growing lobes. CO2 gas exchange measurements carried out in the laboratory confirmed the high metabolic activity of isidia. At optimal water content and favourable light conditions, isolated isidia had rates of gross photosynthesis and dark respiration that were twice those of non-isidiate lobes. Isolated isidia also had a very low CO2 saturation point, probably because of their favourable surface/volume ratio, and a high light saturation, probably linked to their high content of photosynthetic pigments. The different roles played by isidia in the biology of Pseudevernia furfuracea, and particularly their rejuvenating effect on aged lobes, are discussed, and the presence of thalloconidia is briefly mentioned.

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14

GÜLTEKİN, SİNEM, and Gülşah Özyiğitoğlu. "Pseudevernia furfuracea (L.) Zopf Liken Türünün Antibakteriyel Aktivitesi Ve Antioksidan Kapasitesinin Araştırılması." Marmara Fen Bilimleri Dergisi 30, no. 2 (June 30, 2018): 210–16. http://dx.doi.org/10.7240/marufbd.410268.

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15

Czeczuga, B., and St N. Christensen. "The carotenoids of Pseudevernia furfuracea along a North-South gradient in Europe." Feddes Repertorium 105, no. 7-8 (April 18, 2008): 473–80. http://dx.doi.org/10.1002/fedr.19941050713.

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16

Yildiz, Atila, Ahmet Aksoy, Gul Nilhan Tug, Cemil Islek, and Dilek Demirezen. "Biomonitoring of heavy metals by Pseudevernia furfuracea (L.) Zopf in Ankara (Turkey)." Journal of Atmospheric Chemistry 60, no. 1 (May 2008): 71–81. http://dx.doi.org/10.1007/s10874-008-9109-y.

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17

Zolovs, Maksims, Iveta Jakubāne, Jelena Kirilova, Inese Kivleniece, Rolands Moisejevs, Jelena Koļesnikova, and Digna Pilāte. "The potential antifeedant activity of lichen-forming fungal extracts against the invasive Spanish slug (Arion vulgaris)." Canadian Journal of Zoology 98, no. 3 (March 2020): 195–201. http://dx.doi.org/10.1139/cjz-2019-0106.

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The protection of horticultural crops from slug feeding can be achieved using slug pellets; however, application of molluscicides is not always safe for the environment. There is a need for alternative methods to reduce the palatability of crop plants. Chemical properties of secondary compounds from lichens influence the feeding behaviour of slugs. Liquid extracts of three lichen species (Cladonia rangiferina (L.) F.H. Wigg., Cladonia stellaris (Opiz) Pouzar & Vězda, and Pseudevernia furfuracea (L.) Zopf) were applied to three different crops and tested for their antifeedant properties against an important agricultural pest, the Spanish slug (Arion vulgaris Moquin-Tandon, 1855). All three extracts had specific activity, showing a decrease in grazing intensity as well as slug mass loss after feeding on treated food. Slugs significantly gained mass after feeding under control condition; however, they did not gain mass when fed on extract-treated food. The most effective extract was from P. furfuracea. We propose to use properties of lichen extracts to develop new environmentally friendly molluscicides.

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18

Türk, Hayrettin, Meral Yılmaz, Turgay Tay, Ayşen Özdemir Türk, and Merih Kıvanç. "Antimicrobial Activity of Extracts of Chemical Races of the Lichen Pseudevernia furfuracea and their Physodic Acid, Chloroatranorin, Atranorin, and Olivetoric Acid Constituents." Zeitschrift für Naturforschung C 61, no. 7-8 (August 1, 2006): 499–507. http://dx.doi.org/10.1515/znc-2006-7-806.

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The antimicrobial activity and the MIC values of the ethanol, chloroform, diethyl ether, and acetone extracts of the chemical races of Pseudevernia furfuracea (var. furfuracea and var. ceratea) and their physodic acid, chloroatranorin, atranorin, and olivetoric acid constituents have been investigated against some microorganisms. Nearly all extracts of both chemical races showed antimicrobial activity against Aeromonas hydrophila, Bacillus cereus, Bacillus subtilis, Listeria monocytogenes, Proteus vulgaris, Staphylococcus aureus, Streptococcus faecalis, Yersinia enterocolitica, Candida albicans, Candida glabrata, Alternaria alternata, Ascochyta rabiei, Aspergillus niger, Fusarium culmorum, Fusarium moniliforme, Fusarium oxysporum, Fusarium solani, and Penicillium notatum. There was no antimicrobial activity of the extracts against Escherichia coli, Klebsiella pneumoniae, Pseudomonas aeruginosa, Pseudomonas syringae, Salmonella typhimurium, Alternaria citri, Alternaria tenuissima, and Gaeumannomyces graminis. Chloroatranorin and olivetoric acid were active against the same microorganisms with few exceptions. Physodic acid was active against about the same bacteria and yeasts and inactive against all of the filamentous fungi tested. Also no activity of atranorin against the filamentous fungi was observed.

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19

Suetina, Yu G. "Morphological plasticity and population structure of the lichen Pseudevernia furfuracea (L.) Zopf under changing environmental conditions." Vestnik of Orenburg State Pedagogical University. Electronic Scientific Journal, no. 39 (2021): 75–89. http://dx.doi.org/10.32516/2303-9922.2021.39.6.

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20

Рассабина, А. Е., О. П. Гурьянов, Р. П. Бекетт, and Ф. В. Минибаева. "Меланин лишайников Cetraria islandica и Pseudevernia furfuracea: особенности строения и физико-химические свойства." Биохимия 85, no. 5 (May 1, 2020): 729–35. http://dx.doi.org/10.31857/s0320972520050115.

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21

Unal, D., A. Senkardesler, and A. Sukatar. "Abscisic acid and polyamine contents in the lichens Pseudevernia furfuracea and Ramalina farinacea." Russian Journal of Plant Physiology 55, no. 1 (January 2008): 115–18. http://dx.doi.org/10.1134/s1021443708010147.

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22

Malaspina, P., P. Modenesi, and P. Giordani. "Physiological response of two varieties of the lichen Pseudevernia furfuracea to atmospheric pollution." Ecological Indicators 86 (March 2018): 27–34. http://dx.doi.org/10.1016/j.ecolind.2017.12.028.

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23

Garc�a-Junceda, Eduardo, and Carlos Vicente. "The use of immobilized cells to stabilize orsellinate depside hydrolase of Pseudevernia furfuracea." Plant Cell Reports 5, no. 2 (April 1986): 155–57. http://dx.doi.org/10.1007/bf00269258.

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24

Berber, Didem, İpek Türkmenoğlu, and Nüzhet Cenk Sesal. "Antibacterial Potential of Six Lichen Species against Enterococcus durans from Leather Industry : Evaluation of acetone extracts obtained from several lichen species as alternative natural antibacterial agents." Johnson Matthey Technology Review 64, no. 4 (October 1, 2020): 480–88. http://dx.doi.org/10.1595/205651320x15942856494595.

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Antibacterial resistant bacteria are a significant problem in the hide or skin soaking process due to their destructive properties on finished leather. Lichens may be a solution to overcome this resistance problem. Enterococcus durans (99.86%) was isolated from soak liquor samples. For screening of possible antibacterial effects of lichen acetone extracts, six lichen species (Hypogymnia tubulosa, H. physodes, Evernia divaricata, Pseudevernia furfuracea, Parmelia sulcata and Usnea sp.) were examined by nine-fold dilution against E. durans. H. tubulosa, H. physodes and E. divaricata extracts showed antibacterial effects at the concentrations of 240 μg ml−1, 120 μg ml−1 and 60 μg ml−1 whereas the extracts of P. furfuracea had an antibacterial effect at 240 μg ml−1 and 120 μg ml−1. On the other hand, P. sulcata had no antibacterial effect. The most successful lichen extract was determined to be Usnea sp. at the concentrations of 240 μg ml−1, 120 μg ml−1, 60 μg ml−1, 30 μg ml−1 and 15 μg ml−1. In conclusion, lichen extracts seem to have potential antibacterial efficacies against E. durans.

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25

Niewiadomska, Ewa, Dorota Jarowiecka, and Paweł Czarnota. "Effect of different levels of air pollution on photosynthetic activity of some lichens." Acta Societatis Botanicorum Poloniae 67, no. 3-4 (2014): 259–62. http://dx.doi.org/10.5586/asbp.1998.033.

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Four lichen species: <em>Hypogymnia physodes</em>, <em>Pseudevernia furfuracea</em>, <em>Parmelia saxatilis</em>, and <em>Platismatia glauca</em> were collected from two sites (S. Poland) with a different air pollution level: "Kamienica valley" (less polluted) and "Kopa" (more polluted). The thalli were compared with respect to their: net photosynthetic rate (PN), fluorescence parameters (Fv/Fm, Fm, Fm/Fo), chlorophyll a+b content, and phaeophytinization quotient (O.D.435/O.D.415). PN intensity, chlorophyll a+b and O.D.435/O.D.415 were reduced only in Pa furfuracea collected from Kopa, which is in agreement with the Hawksworth-Rose scale of sensitivity of lichens to air pollution. Fluorescence parameters were significantly lowered in all lichens coming from the more polluted site (except of Fv/Fm and Fm/F0 in P. saxatilis). Parameters based on chlorophyll fluorescence measurements enable to reveal the very early signs of decreased photosynthetical capacity of the thalli, caused by air pollution, before changes in the other photosynthetic parameters become mesurable.

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26

Piervittori, R., L. Usai, F. Alessio, and M. Maffei. "The Effect of Simulated Acid Rain on Surface Morphology and n-alkane Composition of Pseudevernia Furfuracea." Lichenologist 29, no. 2 (March 1997): 191–98. http://dx.doi.org/10.1006/lich.1996.0067.

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AbstractThe effects of simulated sulphuric acid rain were investigated, under controlled laboratory conditions, on the surface structure and n-alkane composition of the lichen Pseudevernia furfuracea. Thalli were collected from Larix decidua bark in a wood in a Piedmont alpine valley and treated with three concentrations of H2SO4. The response to simulated acid rain was a clear change in the quantitative alkane composition, with a decreasing trend observed for C28 and C30 with increasing sulphuric acid concentration. From a morphological point of view, a progressive reduction of the surface amorphous layer was observed as a consequence of the exposure of thalli to the acid rain treatments.

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27

Liu, Chunjiang, Hannu Ilvesniemi, and Car J. Westman. "Biomass of Arboreal Lichens and its Vertical Distribution in a Boreal Coniferous Forest in Central Finland." Lichenologist 32, no. 5 (September 2000): 495–504. http://dx.doi.org/10.1006/lich.2000.0288.

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AbstractThe biomass of lichens and its vertical distribution on trees were investigated in a > 100-year-old boreal forest in central Finland. The lichen biomass on individual trees was 1292–3669 g tree−1 on Picea abies and 742 g tree −1 on Pinus sylvestris. More than half of the biomass occurred on dead branches. The proportion of Hypogymnia physodes appeared to rise with the canopy height while the other lichens (Platismatia glauca, Bryoria spp. and Pseudevernia furfuracea) decreased. Mean total lichen biomass for sampled trees on an aerial basis was 163 gm −2. The standing crop of litter lichen deposited on ground was about9 gm −2.

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28

Aoussar, Noura, Fatima Ezzahra Laasri, Mohammed Bourhia, Nedeljko Manoljovic, Rajaa Ait Mhand, Naima Rhallabi, Riaz Ullah, et al. "Phytochemical Analysis, Cytotoxic, Antioxidant, and Antibacterial Activities of Lichens." Evidence-Based Complementary and Alternative Medicine 2020 (December 4, 2020): 1–11. http://dx.doi.org/10.1155/2020/8104538.

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Background. Lichens present a complex symbiotic relationship between a filamentous fungus, photoautotrophic partner (algae or cyanobacteria), and bacterial community. The Objective of the Study. This study aimed at investigating the chemical composition and cytotoxic, antioxidant, and antimicrobial activities of acetone extracts of Moroccan Evernia prunastri (E. prunastri), Ramalina farinacea (R. farinacea), and Pseudevernia furfuracea (P. furfuracea). Materials and Methods. The phytochemical analysis was carried out by HPLC-UV. The cytotoxic effect was assessed on human prostate cancer (22RV1), human colon carcinoma (HT-29), human hepatocellular carcinoma (Hep-G2), and Hamster ovarian cancer (CHO) cells lines by WST1 assay. The antioxidant power was assessed by DPPH and FRAP assays. The antibacterial effect was obtained using the broth microdilution method. Results. The findings of phytochemical analysis showed that the lichens studied possess interesting bioactive molecules such as physodalic acid, evernic acid, and usnic acid, as well as protocetraric acid. According to the American National Cancer Institute guidelines, the WST-1 test showed that all crude extracts did not show significant cytotoxic effects against all concerous cell lines, and IC50 values ranged from 42.30 to 140.24 µg/mL. Regarding the antioxidant activity, P. furfuracea extract showed the highest free-radical-scavenging ability (IC50 = 498.40 µg/mL). The most potent antibacterial extract was recorded for P. furfuracea extract with a minimum inhibitory concentration (MIC) ranging from 0.039 to 0.31 mg/mL. Conclusion. In this research work, we report that the studied lichen extracts exhibit an important biological effect, supporting that lichens represent a hopeful source of original natural products for the research of new bioactive molecules having a pharmaceutical interest.

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29

Güvenç, Ayşegül, Esra Küpeli Akkol, İpek Süntar, Hikmet Keleş, Sulhiye Yıldız, and İhsan Çalış. "Biological activities of Pseudevernia furfuracea (L.) Zopf extracts and isolation of the active compounds." Journal of Ethnopharmacology 144, no. 3 (December 2012): 726–34. http://dx.doi.org/10.1016/j.jep.2012.10.021.

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30

Bakır, Tülay Özhan, Fatime Geyikoglu, Suat Çolak, Hasan Türkez, Ali Aslan, and Murat Bakır. "The effects of Cetraria islandica and Pseudevernia furfuracea extracts in normal and diabetic rats." Toxicology and Industrial Health 31, no. 12 (July 5, 2013): 1304–17. http://dx.doi.org/10.1177/0748233713475521.

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31

Garcia-Junceda, Eduardo, Azucena Gonzalez, and Carlos Vicente. "Photosynthetical and nutritional implications in the accumulation of phenols in the lichen Pseudevernia furfuracea." Biochemical Systematics and Ecology 15, no. 3 (May 1987): 289–96. http://dx.doi.org/10.1016/0305-1978(87)90001-9.

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32

Rassabina, A. E., O. P. Gurjanov, R. P. Beckett, and F. V. Minibayeva. "Melanin from the Lichens Cetraria islandica and Pseudevernia furfuracea: Structural Features and Physicochemical Properties." Biochemistry (Moscow) 85, no. 5 (May 2020): 623–28. http://dx.doi.org/10.1134/s0006297920050119.

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33

Fortuna, Lorenzo, Fabio Candotto Carniel, Fiore Capozzi, and Mauro Tretiach. "Congruence Evaluation of Mercury Pollution Patterns Around a Waste Incinerator over a 16-Year-Long Period Using Different Biomonitors." Atmosphere 10, no. 4 (April 5, 2019): 183. http://dx.doi.org/10.3390/atmos10040183.

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To date, there has been an ever-increasing interest in complementary air monitoring techniques, which may fill the deficiencies of air quality networks. The present work reports the results concerning five biomonitoring surveys (BSs) performed in the proximity of a waste incinerator (WI) over a 16-year period. Hg emission related to the WI activity was monitored by means of both active and passive BSs based on three photosynthetically-active biomonitors (i.e., two epiphytic lichens: Pseudevernia furfuracea and Xanthoria parietina; one vascular plant: Robinia pseudoacacia) collected or exposed before and/or after the WI installation, and after a four-month period of inactivity. Hg concentration values observed in biomonitor samples varied according to the implemented species and to the status of WI plant (active vs. inactive). Our data demonstrate that, in the same pollution scenario, P. furfuracea accumulates three times more Hg than both X. parietina and R. pseudoacacia. The results are discussed in the context of the actual European Union directives concerning air pollution monitoring and assessment, revealing that both active and passive BSs are efficient tools to provide a reliable estimation of the spatial changes of Hg concentrations in the environment.

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Komaty, Sarah, Marine Letertre, Huyen Duong Dang, Harald Jungnickel, Peter Laux, Andreas Luch, Daniel Carrié, et al. "Sample preparation for an optimized extraction of localized metabolites in lichens: Application to Pseudevernia furfuracea." Talanta 150 (April 2016): 525–30. http://dx.doi.org/10.1016/j.talanta.2015.12.081.

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Emsen, Bugrahan, Basak Togar, Hasan Turkez, and Ali Aslan. "Effects of two lichen acids isolated from Pseudevernia furfuracea (L.) Zopf in cultured human lymphocytes." Zeitschrift für Naturforschung C 73, no. 7-8 (July 26, 2018): 303–12. http://dx.doi.org/10.1515/znc-2017-0209.

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Abstract The present study aims at assessing the efficacies of olivetoric acid (OA) and physodic acid (PA) isolated from Pseudevernia furfuracea (L.) Zopf (Parmeliaceae) in human lymphocytes (HLs) in vitro. 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide and lactate dehydrogenase assays were performed to establish cytotoxicity in HLs. Besides, oxidative stress and genotoxicity were monitored by estimating the changes of total oxidative stress (TOS) and 8-hydroxy-2′-deoxyguanosine (8-OH-dG) levels, respectively, in HLs. At the same time, OA- and PA-induced total antioxidant capacity (TAC) levels in HLs were determined. Although especially low concentrations of OA (IC50=109.94 mg/L) and PA (IC50=665.49 mg/L) did not show cytotoxic effect at high levels in HLs, it was revealed that cytotoxicity was significantly (p<0.05) associated with oxidative stress and genotoxicity via correlation analysis. While TOS level in HLs did not statistically (p>0.05) increase in the presence of all treatments (0.5–100 mg/L) of PA, TAC level was increased by PA applications in certain concentrations (0.5–10 mg/L). Overall, the obtained data indicate that OA and especially PA as lichen compounds that do not cause oxidative stress can be a new resource of therapeutics as recognized in the present study with their high antioxidant features.

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Garcia-Junceda, E., M. Carmen Cambon, and C. Vicente. "Enzymatic hydrolysis of physodic acid in Pseudevernia furfuracea. Characterization of the product of depsidone hydrolysis." Plant Science 77, no. 2 (January 1991): 197–206. http://dx.doi.org/10.1016/0168-9452(91)90089-q.

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Vicente, C., M. Carmen Cambón, and E. García-Junceda. "Kinetic comparison between soluble and polyacrylamide-entrapped depsidone ether hydrolase from the lichen Pseudevernia furfuracea." Plant Science 85, no. 2 (January 1992): 143–49. http://dx.doi.org/10.1016/0168-9452(92)90109-y.

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38

Emsen, B., H. Turkez, B. Togar, and A. Aslan. "Evaluation of antioxidant and cytotoxic effects of olivetoric and physodic acid in cultured human amnion fibroblasts." Human & Experimental Toxicology 36, no. 4 (May 20, 2016): 376–85. http://dx.doi.org/10.1177/0960327116650012.

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It is known that lichens are utilized for the treatment of many diseases including ulcer, diabetes, and cancer for many years. Secondary metabolites in the structure of the lichens provide various activity properties for them. In the present study, cytotoxic and oxidative effects of main constituents of Pseudevernia furfuracea (L.) Zopf (Parmeliaceae), olivetoric acid (OA), and physodic acid (PA) were investigated on cultured human amnion fibroblasts (HAFs). OA and PA were isolated from P. furfuracea using column chromatography and their structures were determined by proton nuclear magnetic resonance and carbon-13 nuclear magnetic resonance. HAFs were incubated during 48 h in the presence of OA and PA, at different concentrations from 6.25 mg/L to 200 mg/L. OA showed higher cytotoxicity than PA. In fact, median inhibitory concentration values of OA and PA were 571.27 and 3373.69 mg/L, respectively. The lower concentrations (<50 mg/L) of OA and PA did not cause oxidative stress and genotoxicity; furthermore, they supported anti-oxidative capacity of HAFs. Therefore, all these data suggested that both tested metabolites, especially PA might be developed as natural health medicine to protect human body against oxidative stress and genotoxicity. As far as we know, this is the first report on the cytotoxic and anti-oxidative activities of OA and PA on HAFs.

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Piervittori, R., L. Usai, F. Alessio, and M. Maffei. "The Effect of Simulated Acid Rain on Surface Morphology and n-alkane Composition of Pseudevernia Furfuracea." Lichenologist 29, no. 02 (March 1997): 191. http://dx.doi.org/10.1017/s0024282997000212.

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SORBO, S., G. APRILE, S. STRUMIA, R. CASTALDOCOBIANCHI, A. LEONE, and A. BASILE. "Trace element accumulation in Pseudevernia furfuracea (L.) Zopf exposed in Italy's so called Triangle of Death." Science of The Total Environment 407, no. 1 (December 15, 2008): 647–54. http://dx.doi.org/10.1016/j.scitotenv.2008.07.071.

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Ezra, L., L. Paquin, A. Sauvager, S. Tomasi, and DA Mulholland. "Natural deep eutectic solvents as a new extraction media to extract compounds from Pseudevernia furfuracea (Parmeliaceae)." Planta Medica 81, S 01 (December 14, 2016): S1—S381. http://dx.doi.org/10.1055/s-0036-1596191.

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Blanch, María, Yolanda Blanco, Blanca Fontaniella, María-Estrella Legaz, and Carlos Vicente. "Production of phenolics by immobilized cells of the lichen Pseudevernia furfuracea: the role of epiphytic bacteria." International Microbiology 4, no. 2 (June 2001): 89–92. http://dx.doi.org/10.1007/s101230100019.

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Gallo, Luana, Anna Corapi, Stefano Loppi, and Lucio Lucadamo. "Element concentrations in the lichen Pseudevernia furfuracea (L.) Zopf transplanted around a cement factory (S Italy)." Ecological Indicators 46 (November 2014): 566–74. http://dx.doi.org/10.1016/j.ecolind.2014.07.029.

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Hawrył, Anna, Mirosław Hawrył, Agnieszka Hajnos-Stolarz, Jagoda Abramek, Anna Bogucka-Kocka, and Łukasz Komsta. "HPLC Fingerprint Analysis with the Antioxidant and Cytotoxic Activities of Selected Lichens Combined with the Chemometric Calculations." Molecules 25, no. 18 (September 19, 2020): 4301. http://dx.doi.org/10.3390/molecules25184301.

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The aim of this study was to evaluate the ability of multivariate techniques to predict antioxidant and cytotoxic activity of the selected lichens from the chromatographic data. A simple and reproducible HPLC-DAD technique has been used to obtain the chromatographic fingerprint profiles. Reversed phase high performance liquid chromatography (RP-HPLC) linear gradient system with methanol, water and phosphoric acid (V) (pH 2.3) as the mobile phase was used (50 min). Principal Component Analysis (PCA) has been applied to the evaluation of the phytochemical similarity between studied samples, especially between the same species collected in various places of Poland (Cetraria islandica (L.) Ach., CI, Cladina mitis Sandst., CM, Hypogymnia physodes (L.) Nyl., HP). The ability to scavenge free radicals was evaluated using 2,2-diphenyl-1-picrylhydrazyl (DPPH) and ferric reducing antioxidant power (FRAP) methods and the total phenolic content was determined by Folin-Ciocalteu (F-C) test. In the case of DPPH % of inhibition was higher for selected species (Pseudevernia furfuracea (L.) Zopf, H. physodes in comparison to the literature data. The FRAP test showed that the H. physodes extract had higher ability to scavenge free radical in comparison to Cladonia furcata (Huds.) Schrader and Evernia prunastri (L.) Ach., whereas P. furfuracea extract showed higher ability than C. islandica. The high content of phenolics in P. furfuracea and H. physodes confirms their high antioxidant activity. The cytotoxic activity of studied extracts was tested by cell culture method using the human HL-60 / MX2 acute CKL-22 (CRL-2257) promyelocytic leukemia tumor cell line. The lowest values of IC50 [µg∙mL−1] were obtained for: H. physodes (HP1)—99.4; C. digitate—122.6; H. physodes (HP)—136.5, C. subulata—142.6; C. mitis—180.2.

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Etayo, J. "Aportación a la flora liquénica de las Islas Canarias. iv. Líquenes epifitos de La Gomera (Islas Canarias)." Bryophyte Diversity and Evolution 14, no. 1 (December 31, 1998): 85–107. http://dx.doi.org/10.11646/bde.14.1.13.

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A catalogue of epiphytic lichens from La Gomera (Canary Islands) is presented, especially from Garajonay National Park. 207 species are treated, many of which are new records from the island. Gyalideopsis muscicola var. gomerae is proposed as new. Gyalideopsis calabrica and Porina isidiata are proposed as synonyms of G. muscicola and Porina guaranitica, respectively. Helocarpon corticolum is reported for the first time from North America. New for Macaronesia are Arthonia vinosa, Arthopyrenia cinereopruinosa, Bacidina egenula, B. phacodes, Gyalecta truncigena, Lauderlindsaya acroglypta, Lecidea botryosa, L. erythrophaea, Lecidella achristotera, Lichinodium ahlneri, Ochrolechia arborea, Opegrapha vermicellifera, Pertusaria amara var. slesvicensis, Pseudevernia furfuracea var. ceratea, Pseudosagedia obsoleta, Strigula smaragdula and S. taylorii. New for the Canary Islands are Arthonia anglica, Arthothelium norvegicum, Blarneya hibernica, Calicium lenticulare, Catinaria montana, Haematomma sorediatum, Hypotrachyna taylorensis, Lecanora argentata, L. strobilina, Melaspilea diplasiospora, Micarea melaena, Ochrolechia androgyna, Pertusaria ophthalmiza, Psoroglaena stigonemoides, Pyrenula dermatodes, Scoliciosporum pruinosum and Trapeliopsis granulosa.

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YILDIZ, ATILA, AHMET AKSOY, GAMZE AKBULUT, DILEK DEMIREZEN, CEMIL ISLEK, ERGIN MURAT ALTUNER, and FATIH DUMAN. "Correlation Between Chlorophyll Degradation and the Amount of Heavy Metals Found in Pseudevernia furfuracea in Kayseri (Turkey)." Ekoloji 20, no. 78 (May 20, 2011): 82–88. http://dx.doi.org/10.5053/ekoloji.2011.7813.

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47

Suetina, Yulia G. "Distribution of lichen thalli Pseudevernia furfuracea (L.) Zopf along Pinus sylvestris trunk in different types of pine forests with different relief positions." Samara Journal of Science 9, no. 3 (November 20, 2020): 137–41. http://dx.doi.org/10.17816/snv202093122.

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The research of the Pseudevernia furfuracea population was carried out in the Mari El Republic on the territory of the Mari Chodra National Park. The lichen-mossy and cowberry pine forests were studied with different relief positions: uplands and lowlands. The paper discusses the use of two indicators of population density: D₁ is a number of thalli on the tree; D₂ is a number of thalli in the substrate area. The distribution of thalli along the trunk of Pinus sylvestris depends on the characteristics of the stand, characteristics of the tree and the position of the trees in the relief. In a well-lightened lichen-mossy pine forest the distribution of the number of thallus is equal at different exposures, but it is different due to the heights of the trunk. The maximum number of thalli is typical for a height of 0,51 m. The most number of thallus grows at the southern and western expositions in less lightened cowberry pine forests. There is a shift in the height of the number of thallus to a height of 11,5 m. There is a dependence of the upper boundary of the thallus distribution along the trunk on the height of the lamellar bark. The highest upper limit of thallus growth (a height of 4,8 m) is typical for the lowering of the lichen-mossy pine forest, where the lamellar bark rises to a height of 7,2 m. The lower boundary of the thallus settlement depends on microclimatic factors. Among them the decisive factor is light. The smallest lower boundary of a thallus settlement (a height of 0,2 m) is typical for an elevation in a lichen-mossy pine forest. This habitat has the highest population density of P. furfuracea.

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Aoussar, Noura, Naima Rhallabi, Rajaa Ait Mhand, Rajae Manzali, Mohamed Bouksaim, Allal Douira, and Fouad Mellouki. "Seasonal variation of antioxidant activity and phenolic content of Pseudevernia furfuracea, Evernia prunastri and Ramalina farinacea from Morocco." Journal of the Saudi Society of Agricultural Sciences 19, no. 1 (January 2020): 1–6. http://dx.doi.org/10.1016/j.jssas.2018.03.004.

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Yiğittürk, Gürkan. "Response to cobalt toxicity in lichen Pseudevernia furfuracea; uptake, photosynthetic quantum yield, membrane integrity and deoxyribonucleic acid fragmentation." Istanbul Bilim University Florence Nightingale Journal of Medicine 2, no. 1 (March 1, 2016): 25–31. http://dx.doi.org/10.5606/fng.btd.2016.006.

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Malaspina, Paola, Paolo Giordani, Giulia Pastorino, Paolo Modenesi, and Mauro Giorgio Mariotti. "Interaction of sea salt and atmospheric pollution alters the OJIP fluorescence transient in the lichen Pseudevernia furfuracea (L.) Zopf." Ecological Indicators 50 (March 2015): 251–57. http://dx.doi.org/10.1016/j.ecolind.2014.11.015.

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