Julia V. GerasimovaSenckenberg Research Institute · Department of Botany and Molecular Evolution
Julia V. Gerasimova
PhD
About
17
Publications
4,653
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
137
Citations
Publications
Publications (17)
Lichens have developed numerous adaptations to optimize their survival in various environmental conditions, largely by producing secondary compounds by the fungal partner. They often have antibiotic properties and are involved in protection against intensive UV radiation, pathogens, and herbivores. To contribute to the knowledge of the arsenal of s...
During a study of the incompletely known lichen flora of the Caucasus, we analyzed 237 specimens of corticolous Bacidia s. str. collected in the Northern and Southern Caucasus, including Armenia, Azerbaijan, Georgia, and Russia. Of these, 54 specimens belonging to 11 species of Bacidia s. str. were selected for molecular studies, representing the o...
Lichens have developed numerous adaptations to optimise their survival under harsh abiotic stress, colonise different substrates, and reach substantial population sizes and high coverage in ice-free Antarctic areas, benefiting from a symbiotic lifestyle. As lichen thalli represent consortia with an unknown number of participants, it is important to...
Muchnik, E. E, Tsurykau, A., Otte, V., Breuss, O., Gerasimova, J. V. & Cherepenina, D. A. 2022. New and otherwise noteworthy records of lichenized and lichenicolous fungi from central European Russia II. – Herzogia 35: 494 –509.
Records of fifteen species of lichenized and ten species of lichenicolous fungi are presented. Lecanora substerilis, Rufo...
Lichens serve as important bioindicators of air pollution in cities. Here, we studied the diversity of epiphytic lichens in an urban area in Munich, Bavaria, southern Germany, to determine which factors influence species composition and diversity. Lichen diversity was quantified in altogether 18 plots and within each, five deciduous trees were inve...
Fungi involved in lichen symbioses produce a large array of secondary metabolites that are often diagnostic in the taxonomic delimitation of lichens. The most common lichen secondary metabolites—polyketides—are synthesized by polyketide synthases, particularly by Type I PKS (TI-PKS). Here, we present a comparative genomic analysis of the TI-PKS gen...
Fungi involved in lichen symbioses produce a large array of different secondary metabolites. The high diversity of those substances has been known for decades and are often considered characteristic for taxonomical delimitation in lichen-forming fungi. Polyketides, the most common secondary metabolites, are synthesized by the Type I Polyketide synt...
Sixteen species are reported as new for Estonia. Among these species, ten are lichenized and six are lichen-habiting fungi. One lichen-habiting species – Bryostigma molendoi (Heufl. ex Arnold) S.Y. Kondr. & Hur (= Arthonia molendoi (Heufl. ex Arnold) R. Sant.) and one lichenized species – Lecania nylanderiana A. Massal. should be excluded from the...
To clarify deep relationships among species lineages within Bacidia s. str., and to investigate the robustness of the deeper branches, we combined data from three traditionally used RNA-coding genes (nrITS, nrLSU and mtSSU) with two protein-coding genes ( RPB 1 and RPB 2). The multigene phylogeny contained 48 newly generated sequences from the Russ...
High-resolution X-ray computer tomography (microCT) is a well-established technique to
analyse three-dimensional microstructures in 3D non-destructive imaging. The non-destructive threedimensional analysis of lichens is interesting for many reasons. The examination of hidden structural characteristics can, e.g., provide information on internal stru...
In recent years, several species that have long been considered to belong in Bacidia s. lat. have been transferred to other genera such as Bellicidia , Bibbya , Scutula , and also to Toniniopsis , accommodating species previously placed in Bacidia and Toninia . One of its widespread species, Toniniopsis subincompta , can be recognized by its thinly...
Twenty-six taxa of lichenized and lichenicolous fungi are treated, of which one (Stictis mollis) is recorded for the first time for Russia, three (Acarospora normanii, Cladonia monomorpha and Polysporina subfuscescens) are new for the European part of Russia, and Reconditella physconiarum is new for central European Russia. A further twenty one spe...
The molecular phylogeny of Bacidia s.s. in the Russian Far East was investigated using 62 nucleotide sequences from the ITS nrDNA region, 22 of which were newly obtained. Phylogenetic reconstructions employed Bayesian inference and maximum likelihood searches using MrBayes and RAxML. In addition, ITS2 secondary structures added further support usin...
Thirteen species and one variety of lichens, nine lichenicolous and two saprobic fungi are reported for the first time for St. Petersburg, the whole Leningrad Region or its western or eastern parts. The lichens Bacidina brandii, B. neosquamulosa, Porina leptalea, Rinodina aspersa and the lichenicolous fungus Scutula dedicata are reported for the fi...
We aim to increase understanding and improve taxonomy of seven names currently treated in Bacidia that were described from Russian territory based on material collected during 19th-century expeditions: Bacidia alborussula, B. freshfieldii, B. graminum, B. indigens, B. primigenia, B. subabbrevians, and B. xylophila. B. alborussula, B. graminum, and...
Ten lichenized fungi are reported as new to Estonia: Atla wheldonii, Bacidia coprodes, Bacidina assulata, Bacidina brandii, Candelariella lutella, Gyalidea fritzei, Piccolia ochrophora, Protoparmelia oleagina, Sclerophora amabilis and Strangospora deplanata. One lichenized fungus, Leptogium subtile, has been reported from Estonia earlier, but all t...
The article focuses on Bacidia absistens (Nyl.) Arnold. In this note, for the first time the description of species is given based on a single collection from European Russia. Nomenclature of species, new synonym Lecidea intermissa Nyl. and a key to the closely related species are provided; as well as the lectotype of L. intermissa is designated. F...