Katalog - Lichenological literature

38116

Kidron G.J. (2019): The enigmatic absence of cyanobacterial biocrusts from the Namib fog belt: Do dew and fog hold the key?, Flora: Morphology, Distribution, Functional Ecology of Plants, 257: 151416

Although considered as pioneering organisms of biocrusts, cyanobacterial biocrusts are scarce and even absent from the Namib fog belt, which is inhabited, however, by luxurious lichen-dominated crusts. While previously proposed that the phenomenon may stem from a low rainfall frequency, it is suggested herein that it may stem from a negative balance of carbon. This explanation is based on published data on photosynthesis of biocrusts along with an analysis of dew and fog formation. Lush cover of … Read more...

38115

Hell A.F., Gasulla F., Gonzï Lez-Hourcade M.A., Del Campo E.M., Centeno D.C. & Casano L.M. (2019): Tolerance to cyclic desiccation in lichen microalgae is related to habitat preference and involves specific priming of the antioxidant system, Plant & Cell Physiology, 60(8): 1880-1891

Oxidative stress is a crucial challenge for lichens exposed to cyclic desiccation and rehydration (D/R). However, strategies to overcome this potential stress are still being unraveled. Therefore, the physiological performance and antioxidant mechanisms of two lichen microalgae, Trebouxia sp. (TR9) and Coccomyxa simplex (Csol), were analyzed. TR9 was isolated from Ramalina farinacea, a Mediterranean fruticose epiphytic lichen adapted to xeric habitats, while Csol is the phycobiont of Solorina saccata, … Read more...

38114

Smets B., Souverijns N., Jattrain G., Buchhorn M., Moiret A., Quang A.V., Lesiv M. & Tsendbazar N. (2020): Elastic mapping through the Copernicus Global Land Cover layers, International Geoscience and Remote Sensing Symposium, 2020: 4251-4254

The Copernicus Global Land Service has newly released yearly global land cover layers from 2015 onwards. Since one static global map cannot fit the needs of different user communities, Copernicus went the next step and provides dynamic land cover layers which allow to tune the map to your own needs, i.e. Forest monitoring, Sustainable Development Goals, biodiversity or ecosystem services monitoring. Therefore, the land cover layers provide next to a standard classified map also a set of continuous … Read more...

38113

Armstrong R.A. (2019): Could lichens survive on Mars?, Journal of Astrobiology and Space Science Reviews, 1: 235-241

A significant assertion of the publication by Joseph et al. (2019) (%93Evidence for Life on Mars%94) is the claim that lichens and their symbionts may have colonized Mars. This commentary critically reviews this assertion with evidence for and against. Evidence for the claim includes first, that lichens are %91extremophiles%92, have an ability to adapt and thrive in some of the most extreme environments on Earth, and in experiments at the International Space Station (ISS) under space and simulated … Read more...

38112

Kouadria N., Belhoucine F., Bouredja N., Kaci M.A., Abismail Y. & Berrebbah A.A. (2020): Bioaccumulation of lead by “Xanthoria parietina” and “Hylocomium splendens”, and its effect on some physiological parameters, Journal of Materials and Environmental Sciences, 11(2): 247-254

Air pollution is one of the most serious problems in the world. Other than natural sources, air pollution can also result from human activity; the level of atmospheric pollution has reached the dimensions that threaten human health due to the rapid urbanization and the increase of number of vehicles in the market, which are considered as the main emission sources of important quantities of toxic substances in the atmosphere that can remain intact in nature for long period affecting human, animals … Read more...

38111

Yavuz M. & Çobanoǧlu G. (2019): Active monitoring of airborne elements in Isparta Province (Turkey) with the epiphytic lichen Physcia aipolia (Erh. ex Humb.) Fürnr, Journal of Elementology, 24(3): 1115-1128

Air pollutants pose a threat to biodiversity throughout the world. This study was conducted to evaluate atmospheric element accumulation in Isparta city, including Gölcük Nature Park, located in the Western Mediterranean Region of Turkey. It is aimed to determine the air quality and potential pollutant sources in the region through lichen biomonitoring. Specimens of the epiphytic foliose lichen Physcia aipolia (Erh. ex Humb.) Fürnr. were sampled from 14 sites in the study area and analyzed by … Read more...

38110

Bouchenak O., Yahiaoui K., Benhabyles N., Laoufi R. & Arab K. (2018): Preventive effect of Xanthoria parietina polyphenols on the complications of diabetes in white rat, Pakistan Journal of Pharmaceutical Sciences, 31(1)suppl.: 317–324

Polyphenols have shown antioxidant activity and an ability to prevent the toxic effects of oxidative stress in diabetes. The objective of this study was to evaluate the hypoglycemic and antioxidant effect of the methanolic extract of Xanthoria parietina on rats diabetes induced by streptozotocin (40 mg/g). The results obtained show that streptozotocin induces diabetes in the animal characterized by hyperglycemia, elevation of oxidative stress markers and a decrease of enzymatic and non-enzymatic … Read more...

38109

Gavériaux J.-P. (2013): Principaux produits chimiques utilisés en Lichénologie, Bulletin d'Informations de l'Association Française de Lichénologie, 28(1): 45–60

38108

Hanedar A., Güneş E., Kaykioğlu G., Çelik S.Ö. & Cabi E. (2020): Determination of polycyclic aromatic hydrocarbons in the soil, atmospheric deposition and biomonitor samples in the Meric-Ergene River Basin, Turkey, Environment, Development and Sustainability, 22: 3389–3406

In this study, the levels of polycyclic aromatic hydrocarbons (PAHs) were determined in various components in the Meric-Ergene River Basin which is one of Turkey’s intensive industrialization centers and which accordingly has faced significant environmental pollution and has about 1300 industrial plants within its boundaries. In the river basin, 16 USEPA PAHs were measured in a total of 192 samples consisting of soil, lichen, pine needle and total deposition samples for 1 year to represent the … Read more...

38107

Tatipamula V.B., Polimati H., Gopaiah K.V., Babu A.K., Vantaku S., Rao P.R. & Killari K.N. (2020): Bioactive metabolites from manglicolous lichen Ramalina leiodea (Nyl.) Nyl., Indian Journal of Pharmaceutical Sciences, 82(2): 379-384

The chemical investigation of acetone extract of manglicolous lichen Ramalina leiodea yielded three known metabolites, methyl 2,6-dihydroxy-4-methyl benzoate (1), haematommic acid (2) and ethyl haematommate (3), which are reported for the first time in this species. The acetone extract and the metabolites (1-3) were screened for antioxidant activity in α,α-diphenyl-β-picrylhydrazyl, 2,2’-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) and superoxide free radical assays, for antiinflammatory … Read more...