Katalog - Lichenological literature

33132

Daimari R., Bhuyan P., Hussain S., Nayaka S., Mazumder M.A.J. & Hoque R.R. (2021): Anatomical, physiological, and chemical alterations in lichen (Parmotrema tinctorum (Nyl.) Hale) transplants due to air pollution in two cities of Brahmaputra Valley, India, Environmental Monitoring and Assessment, 193:101 [12 p.]

The lichen species Parmotrema tinctorum (Nyl.) Hale was transplanted in two cities—Tezpur (small) and Guwahati (large)—of the Brahmaputra Valley to assess the impact of air pollution on the anatomy and physiology, and accumulation of pollutants. Significant damage to the anatomy was observed in samples, and the degree of damage was found to be higher in the transplants of the larger city. In the lichen transplants from locations having high traffic density, the total chlorophyll content … Read more...

33133

Galanty A., Danel T., Węgrzyn M., Podolak I. & Podolak I. (2021): Deep convolutional neural network for preliminary in-field classification of lichen species, Biosystems Engineering, 204: 15–25

Lichens are unique organisms, valued for their pharmacological activity, but also well known as bioindicators of environmental pollution, key determinants for some natural ecological habitats, or just popular elements of decoration. High morphological similarity between lichen species makes their recognition complicated, especially under in-field conditions. Thus, there is a need for a quick and easy method that can help with the preliminary classification of selected lichen species. This paper … Read more...

33137

Kaasalainen U., Tuovinen V., Kirika P.M., Mollel N.P., Hemp A. & Rikkinen J. (2021): Diversity of Leptogium (Collemataceae, Ascomycota) in East African montane ecosystems, Microorganisms, 9: 314 [25 p.]

Tropical mountains and especially their forests are hot spots of biodiversity threatened by human population pressure and climate change. The diversity of lichens in tropical Africa is especially poorly known. Here we use the mtSSU and nuITS molecular markers together with morphology and ecology to assess Leptogium (Peltigerales, Ascomycota) diversity in the tropical mountains of Taita Hills and Mt. Kasigau in Kenya and Mt. Kilimanjaro in Tanzania. The sampled habitats cover a wide range of ecosystems … Read more...

33138

Thiyagaraja V., Lücking R., Ertz D., Karunarathna S.C., Wanasinghe D.N., Lumyong S. & Hyde K.D (2021): The evolution of life modes in Stictidaceae, with three novel taxa, Journal of Fungi, 7(2): 105 [23 p.]

Ostropales sensu lato is a large group comprising both lichenized and non-lichenized fungi, with several lineages expressing optional lichenization where individuals of the same fungal species exhibit either saprotrophic or lichenized lifestyles depending on the substrate (bark or wood). Greatly variable phenotypic characteristics and large-scale phylogenies have led to frequent changes in the taxonomic circumscription of this order. Ostropales sensu lato is currently split into Graphidales, Gyalectales, … Read more...

33140

Rao M.R.V. & Hariprasad T.P.N. (2021): In silico analysis of a potential antidiabetic phytochemical erythrin against therapeutic targets of diabetes, In Silico Pharmacology, 9: 5 [12 p.]

Diabetes mellitus is a multifactorial disorder characterized by a chronic elevation in blood glucose levels. Currently, antidiabetic drugs are available to counteract the associated pathologies. Their concomitant efects necessitate the investigation for an efective and safe drug aimed to diminish blood glucose levels with fewer side efects. Several researchers are taking new initiatives to explore plant sources as they are known to contain a wide variety of active agents. Hence, the present study … Read more...

33145

Ignatenko R.V. & Tarasova V.N. (2021): Population characteristics of cephalolichen Lobaria pulmonaria (L.) Hoffm. at the northern limit of its range (Northwest Russia, Republic of Karelia), Czech Polar Reports, 10(2) [2020]: 236–251

The populations of Lobaria pulmonaria and their characteristics were studied at the northern limit of its range in the Republic of Karelia (Northwest Russia). The study was carried out in northernmost boreal zone on 8 permanent 100 × 100 m sample plots with last disturbance 180–270 years ago. It was found that in the north of the region, the number of substrate units on which lichen grows decreases with an increase of the time since last disturbance from 25 to 11 per ha. In the ontogenetic … Read more...

33146

Pedišius V. (2021): UV-B absorbing and bioactive secondary compounds in lichens Xanthoria elegans and Xanthoria parietina: A review, Czech Polar Reports, 10(2) [2020]: 252–262

Secondary metabolites are the bioactive compounds of plants which are synthesized during primary metabolism, have no role in the development process but are needed for defense and other special purposes. These secondary metabolites, such as flavonoids, terpenes, alkaloids, anthraquinones and carotenoids, are found in Xanthoria genus lichens. These lichens are known as lichenized fungi in the family Teloschistaceae, which grows on rock and produce bioactive compounds. A lot of secondary compounds … Read more...

33147

Andreev M.P., Andersen D., Kurbatova L., Smirnova S., & Chaplygina O. (2021): Lichens, bryophytes and terrestrial algae of the Lake Untersee Oasis (Wohlthat Massiv, Dronning Maud Land, Antarctica), Czech Polar Reports, 10(2) [2020]: 203–225

Lake Untersee is the largest ice-covered freshwater lake in the interior of East Antarctica. The mountain oasis is situated around it in the Gruber Mts. of the Wohlthat Massif. For approximately 7,000 years the area has been free of ice and the local climate relatively stable. It is very severe, cold, and windy and dominated by intense evaporation and sublimation but with little melt. Relative humidity averages only 37%. Vegetation is sparse in the oasis and previously only poorly investigated. … Read more...

33148

Weiss J. & Orekhova A. (2021): Biometrical analysis and thallus morphology characteristics of Placopsis antarctica from King George Island, Antarctica, Czech Polar Reports, 10(2) [2020]: 161–168

Placopsis antarctica is an ornithocoprophilous lichen that has been for a long time confused with P. contortuplicata I. M. Lamb. In our study, we focused on morphological characteristics of P. antarctica thalli. We report biometrical data on dominant morphological structures of P. antarctica thallus: cephalodia, marginal lobes, sorediate pits and soralia. Thalli of P. antarctica were collected at the King George Island, Antarctica and analyzed in a laboratory using a digital microscopy approach. … Read more...

33149

Váczi P., Barták M., Bednaříková M., Hrbáček F. & Hájek J. (2021): Spectral properties of Antarctic and Alpine vegetation monitored by multispectral camera: Case studies from James Ross Island and Jeseníky Mts., Czech Polar Reports, 10(2) [2020]: 297–312

In this study, we investigated the utility of spectral remote sensing data gathered by a multispectral camera for estimating of vegetation cover in Antarctic vegetation oasis and Arcto-Alpine tundra. The surveys exploiting unmanned aerial vehicles (UAV) and multispectral camera were done in an Antarctic vegetation oasis located at the Northern shore of James Ross Island (Antarctica), and arcto-alpine tundra located in the Jeseníky Mts. (NE Czech Republic, 1 420 m a.s.l.). For the two locations, … Read more...