Page 3517 of 3643 Results 35161 - 35170 of 36427
Id/Author/Year/TitleOrder by:  Year  Id  Author  Title
34716
Grudzińska M., Paśko P., Wróbel-Biedrawa D., Podolak I. & Galanty A. (2022): Antimelanoma potential of Cladonia mitis acetone extracts – Comparative in vitro studies in relation to usnic acid content - Chemistry and Biodiversity, 19: e202200408 [6 p.]

In this study, the cytotoxic activity of acetone extracts of Cladonia mitis was assessed with respect to the content of usnic acid, a secondary metabolite commonly present in this species. Following quantitative HPLC analysis of the extracts, usnic acid was isolated by preparative chromatography. The study of cytotoxic activity was performed using the MTT test on three melanoma cell lines – HTB140, A375 and WM793. The selectivity of action was also assessed by comparing the effect towards normal … URL EndNote Read more... 

34717
Weber B., Belnap J., Büdel B., Antoninka A.J., Barger N.N., Chaudhary V.B., Darrouzet-Nardi A., Eldridge D.J., Faist A.M., Ferrenberg S., Havrilla C.A., Huber-Sannwald E., Issa O.M., Maestre F.T., Reed S.C., Rodriguez-Caballero E., Tucker C., Young K.E., Zhang Y., Zhao Y., Zhou X. & Bowker M.A. (2022): What is a biocrust? A refined, contemporary definition for a broadening research community - Biological Reviews, 97: 1768–1785

Studies of biological soil crusts (biocrusts) have proliferated over the last few decades. The biocrust literature has broadened, with more studies assessing and describing the function of a variety of biocrust communities in a broad range of biomes and habitats and across a large spectrum of disciplines, and also by the incorporation of biocrusts into global perspectives and biogeochemical models. As the number of biocrust researchers increases, along with the scope of soil communities defined as … URL EndNote Read more... 

34718
Concostrina-Zubiri L., Prieto M., Hurtado P., Escudero A. & Martínez I. (2022): Functional diversity regulates the effects of habitat degradation on biocrust phylogenetic and taxonomic diversities - Ecological Applications, 32: e2599 [14 p.]

Biocrusts are major contributors to dryland diversity, functioning, and services. However, little is known about how habitat degradation will impact multiple facets of biocrust diversity and measurable functional traits. We evaluated changes in taxonomic, functional, and phylogenetic diversity of biocrust-forming lichens along a habitat degradation gradient related to the presence of linear infrastructure (i.e., a road) and a profound agricultural driven transformation. To do so, we selected 50 remnants … URL EndNote Read more... 

34719
Spribille T., Resl P., Stanton D.E. & Tagirdzhanova G. (2022): Evolutionary biology of lichen symbioses - New Phytologist, 234: 1566–1582

Tansley review. Lichens are the symbiotic outcomes of open, interspecies relationships, central to which are a fungus and a phototroph, typically an alga and/or cyanobacterium. The evolutionary processes that led to the global success of lichens are poorly understood. In this review, we explore the goods and services exchange between fungus and phototroph and how this propelled the success of both symbiont and symbiosis. Lichen fungal symbionts count among the only filamentous fungi that expose … URL EndNote Read more... 

34720
Kranner I., Pichler G. & Grube M. (2022): The lichen market place - New Phytologist, 234: 1541–1543

Commentary on the paper Spribille et al. (2022), New Phytologist 234: 1566–1582. [jjh34719] URL EndNote Read more... 

34721
Cometto A., Leavitt S.D., Millanes A.M., Wedin M., Grube M. & Muggia L. (2022): The yeast lichenosphere: high diversity of basidiomycetes from the lichens Tephromela atra and Rhizoplaca melanophthalma - Fungal Biology, 126: 587–608

Lichens are well-known examples of complex symbiotic associations between organisms from different Kingdoms. Microfungi in particular, establish diverse associations with the hosting lichen thallus, as species-specific parasites or transient co-inhabitants. The whole community of lichen-associated fungi constitute the ‘lichen mycobiome’ comprising both ascomycetes and basidiomycetes, including filamentous and yeast taxa. Metabarcoding results and microscopy analyses show that in some thalli, … URL EndNote Read more... 

34722
Akpinar A., Cansev A. & Isleyen M. (2022): Impact of Peltigera praetextata on zucchini grown in weathered p,p'‑DDE‑contaminated soil and its responses - Acta Physiologiae Plantarum, 44: 140 [15 p.]

Terricolous lichens, located in soils, can change the bioavailability of polluted soil biologically, chemically and physically with their effective enzymatic content. Their effects are unknown especially on weathered p,p'-DDE-contaminated soil. However, we obtain new information by increasing our studies on this subject. In the present study, the impact of Peltigera praetextata (a terricolous lichen) on zucchini (Cucurbita pepo spp. pepo) grown in weathered p,p'-DDE-contaminated soil was shown … URL EndNote Read more... 

34723
Kholod S.S. & Konoreva L.A. (2022): Lichens in the polar deserts of the northern tip of the Novaya Zemlya Archipelago - Doklady Biological Sciences, 506: 212–238

[Original Russian text published in Botanicheskii Zhurnal, 2022, Vol. 107, No. 1, pp. 18–37.] For the polar deserts of the Novaya Zemlya archipelago, the analysis of the dependence of the distribution of lichens on altitude above sea level, exposure by cardinal direction, the granulometric composition of soils, morphometric parameters of structural soils, the cover values of bryophytes and the total cover of cushion forms of plants and lichens was carried out. Based on 157 sample plots, nine … URL EndNote Read more... 

34724
Wieder R.K. (2022): Element stoichiometry and nutrient limitation in bog plant and lichen species - Biogeochemistry, 160: 355–379

Ombrotrophic bogs receive new inputs of elements solely through atmospheric deposition, except for N where inputs are predominantly through N2-fixation, at least in low N deposition environments. At various locations across the globe, including the Athabasca Oil Sands Region (AOSR) of northern Alberta, Canada, element atmospheric deposition has increased as a result of anthropogenic activities. Regional and/or global deposition gradients offer an opportunity to examine questions related to nutrient … URL EndNote PDF Read more... 

34725
Isidorov V.A., Pirożnikow E., Spirina V.L., Vasyanin A.N., Kulakova S.A., Abdulmanova I.F. & Zaitsev A.A. (2022): Emission of volatile organic compounds by plants on the floor of boreal and mid‑latitude forests - Journal of Atmospheric Chemistry, 79: 153–166

The forests of the boreal and mid-latitude zones of the Northern Hemisphere are the largest source of reactive volatile organic compounds (VOCs), which have an important impact on the processes occurring in the atmospheric boundary layer. However, the composition of biogenic emissions from them remains incompletely characterized, as evidenced by the significant excess OH radical concentrations predicted by models in comparison with those observed under the forest canopy. The missing OH sink in the … URL EndNote Read more... 

Page 3517 of 3643 Results 35161 - 35170 of 36427