JJH Katalog - Lichenological literature

35340

Yang Q., Song Z., Li X., Hou Y., Xu T. & Wu S. (2023): Lichen-derived Actinomycetota: Novel taxa and bioactive metabolites - International Journal of Molecular Sciences, 24(8): 7341 [22 p.]

Actinomycetes are essential sources of numerous bioactive secondary metabolites with diverse chemical and bioactive properties. Lichen ecosystems have piqued the interest of the research community due to their distinct characteristics. Lichen is a symbiont of fungi and algae or cyanobacteria. This review focuses on the novel taxa and diverse bioactive secondary metabolites identified between 1995 and 2022 from cultivable actinomycetota associated with lichens. A total of 25 novel actinomycetota species … Read more...

35339

Winkler S. (2004): Lichenometric dating of the 'Little Ice Age' maximum in Mt Cook National Park, Southern Alps, New Zealand - Holocene, (6):911-920

Lichenometric dating studies using the yellow-green Rhizocarpon subgenus at the Eugenie, Hooker, Mueller and Tasman Glaciers in Mt Cook National Park, Southern Alps, New Zealand, reveal a 'Little Ice Age' maximum during the mid-eighteenth century (around AD 1725-1740). Lichenometric dating curves, constructed for Mueller Glacier in a preliminary study, were modified using local control points at the other glaciers. Modi. cation was necessary because of variations in local ecological conditions. The … Read more...

35338

McKinzey K., Orwin J. & Bradwell T. (2004): Re-dating the moraines at Skalafellsjokull and Heinabergsjokull using different lichenometric methods: Implications for the timing of the Icelandic Little Ice Age maximum - Geografiska Annaler Series A-Physical Geography, (4):319-335

Little Ice Age (LIA) moraines along the margins of Skalafellsjokull and Heinabergsjokull, two neighbouring outlet glaciers flowing from the Vatnajokull ice-cap, have been re-dated to test the reliability of different lichenometric approaches. During 2003, 12 000 lichens were measured on 40 moraine fragments at Skalafellsjokull and Heinabergsjokull to provide surface age proxies. The results are revealing. Depending on the chosen method of analysis, Skalafellsjokull either reached its LIA maximum … Read more...

35337

Nguyen N.-H., Nguyen P.-T., Otake H., Nagata A., Hirano N., Imanishi-Shimizu Y. & Shimizu K. (2023): Biodiversity of basidiomycetous yeasts associated with Cladonia rei lichen in Japan, with a description of Microsporomyces cladoniophilus sp. nov. - Journal of Fungi, 9(4): 473 [16 p.]

For more than a century, lichens have been used as an example of dual-partner symbiosis. Recently, this has been challenged by the discovery of various basidiomycetous yeasts that coexist in multiple lichen species, among which Cladonia lichens from Europe and the United States were discovered to be highly specifically associated with the basidiomycetous yeast of the family Microsporomycetaceae. To verify this highly specific relationship, we investigated the diversity of basidiomycetous yeasts associated … Read more...

35336

García R. (2023): La funga liquenizada de la Reserva “Eco Área de Avellaneda” y su relación con otras áreas protegidas del Río de la Plata - Historia Natural (tercera serie), 12(3): 169–180

[in Spanish with English abstract: ] On the southern bank of the Río de la Plata there is a forest ecosystem that has suffered the ravages of urbanization, which is known as jungle or gallery forest. Within this ecosystem there is a recently formed natural reserve: the Municipal Reserve “Eco Area of Avellaneda”, which is surrounded by one of the most populated areas in the country. Epiphytic lichen species were surveyed. A total of 43 species were found. Comparisons were made by means … Read more...

35335

Vandinther N. & Aherne J. (2023): Biodiversity-based empirical critical loads of nitrogen deposition in the Athabasca Oil Sands Region - Nitrogen, 4(2): 169–193

Anthropogenic nitrogen (N) emissions can have considerable effects on terrestrial ecosystems, with chronic N deposition leading to changes in plant species composition. The Athabasca Oil Sands Region (AOSR) represents a large point source of N emissions, which has prompted concern for surrounding habitats. The objective of this study was to determine the relative importance of N deposition as a driver of plant species community composition against bioclimatic and soil chemical variables. Further, … Read more...

35334

Moreau M., Mercier D., Laffly D. & Roussel E. (2008): Impacts of recent paraglacial dynamics on plant colonization: A case study on Midtre Lovenbreen foreland, Spitsbergen (79 degrees N) - Geomorphology, 95(1-2): 48-60

Climatic changes since the end of the Little Ice Age have considerably disturbed environmental balances of plant colonization in high latitudes. Within one century on Spitsbergen, valley glaciers have retreated up to I kin from their original terminus as of 1918, affecting several hundred hectares of two types of landscape processes: plant colonization and paraglacial morphogenesis. Since these processes are limited to the chronological position of the old ice front, it is possible to know the rate … Read more...

35333

Bednaříková M., Gauslaa Y. & Solhaug K.A. (2023): Non-invasive monitoring of photosynthetic activity and water content in forest lichens by spectral reflectance data and RGB colors from photographs - Fungal Ecology, 62: 101224 [8 p.]

There is a need for non-invasive monitoring of temporal and spatial variation in hydration and photosynthetic activity of red-listed poikilohydric autotrophs. Here, we simultaneously recorded kinetics in RGB-colors (photos), reflectance spectra, water content, maximal (FV/FM), and effective quantum yield of PSII (ΦPSII) during desiccation in foliose lichens differing in cortical characteristics and photobionts. The spectral absorbance peaks of chlorophyll a, phycocyanin, and phycoerythrin were clearly … Read more...

35332

Demková L., Baranová B., Oboňa J., Árvay J. & Lošák T. (2017): Assessment of air pollution by toxic elements on petrol stations using moss and lichen bag technique - Plant, Soil and Environment, 63: 355–361

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 significantly lower content of heavy metals compared to mosses and lichens. Major content of heavy metals … Read more...

35331

Oboňa J., Demková L., Bobuľská L., Lošák T. & Manko P. (2022): Search of pattern in presence of epiphytic lichens growing in an urban environment – case study in Prešov city (Slovakia) - Biodiversity and Environment, 14: 4–9

Lichens are sensitive organisms, widely applied in air quality assessments and monitoring programs around the world. Traffic emissions or articulate matter influence the pattern in presence of lichens on roadside trees. The research of epiphytic lichens in Prešov city (Slovakia) was conducted in 17 near-road localities (three trees per locality). The traffic density, selected tree parameters, lichen density, and presence in research squares (15 x 15 cm) on 4 sides of the tree (side in the direction … Read more...